x402watch

22,937 paid endpoints are listed. 21,869 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-10-02 12:47 UTC · 22,937 probed

21,869 answering 402548 down397 rejecting123 no paywall2,399 price drift
  1. 100mcp.yield.xyz/x402/actions_get_allList past and pending actions for a wallet across all yields — filter by status, intent, type, yield, or network. Answers "what are my pending actions?" and finds actions awaiting a next step.$0.001 Base232 ms1 payers100% up
  2. 100mcp.yield.xyz/x402/yields_get_kyc_statusCheck whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status and, when required, where to complete verification — call before actions_enter on gated yields.$0.001 Base256 ms1 payers100% up
  3. 100mcp.yield.xyz/x402/yields_get_validatorsList validators for delegation-based yields (Cosmos, Polkadot, ETH native staking, etc.). Use a validator address with actions_enter/actions_exit. Filter to curated validators with preferred=true, or by name/status/address/provider.$0.001 Base250 ms1 payers100% up
  4. 100mcp.yield.xyz/x402/yields_get_reward_rate_historyHistorical APY / reward-rate for a yield over time — plot APY trends or compute average yield across 1d/7d/30d/90d/1y windows.$0.001 Base238 ms1 payers100% up
  5. 100mcp.yield.xyz/x402/yields_get_tvl_historyHistorical total-value-locked (TVL) for a yield over time — track inflows/outflows and protocol growth across 1d/7d/30d/90d/1y windows.$0.001 Base233 ms1 payers100% up
  6. 100mcp.yield.xyz/x402/yields_get_riskGet the risk profile for a yield — ratings and scores from independent risk providers (Credora, Staking Rewards) so agents and users can weigh safety before depositing.$0.001 Base254 ms1 payers100% up
  7. 100mcp.yield.xyz/x402/providers_get_allList every protocol/provider behind Yield.xyz yields — Lido, Aave, Morpho, validator operators, RWA issuers, and more — with names and identifiers. Use a providerId to filter yields_get_all.$0.001 Base232 ms1 payers100% up
  8. 100keyronne.com/api/chain-txLook up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: status (success/reverted/pending), from/to, value, block, nonce, gas used and price, log count, and any contract created. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","hash":"0xb498053e345acd227657ef2e3de7d9fd9b861d673368419c4b18cfaea20365c8"}$0.003 Base29 ms1 payers100% up
  9. 100keyronne.com/api/chain-gasCurrent gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee) on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, in gwei. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"ethereum"}$0.003 Base32 ms1 payers100% up
  10. 100keyronne.com/api/phoneValidate and parse phone numbers in international E.164 form: extract the country calling code and region, the national number, and the canonical +E.164 string. Single number or a batch of up to 50. Format validation, not a line-in-service check. POST a JSON body like: {"phone":"+14155552671"}$0.001 Base34 ms1 payers100% up
  11. 100keyronne.com/api/validate-jsonValidate a JSON value against a JSON Schema and coerce common LLM-output mistakes (numbers as strings, stringified booleans, scalars where arrays are expected, missing defaults, extra properties). Returns the coerced value plus a structured error report. Built for cleaning up LLM tool-call arguments and structured outputs. POST a JSON body like: {"schema":{"type":"object","required":["name","age"],"properties":{"name":{"type":"string"},"age":{"type":"integer"}}},"data":{"name":"Ada","age":"36"}}$0.001 Base125 ms1 payers100% up
  12. 100alphapulse.theaslangroupllc.com/api/alpha/prop-firmsProp-firm shortlist matched to your market, region, and trading style: payout-proof checks first, challenge rules that actually differ (drawdown type, news/EA rules, breach terms), profit splits, and the red flags of an industry where most revenue comes from failed challenges. Forex/CFD and futures firms, region-aware worldwide. For trading agents and the traders they work for.$0.15 Base297 ms1 payers100% up
  13. 100api.qonoro.ai/v1/person/searchx402-native person discovery for autonomous agents. Given search criteria (title, seniority, company, industry, or location) instead of a known name, returns a list of matching people with title, seniority, department, decision-maker status, LinkedIn URL, and location. Structured JSON. Paid per request via x402.$0.05 Base199 ms1 payers100% up
  14. 100api.brazilayer.com/v1/desmatamento/fornecedor/:cnpjFrom a Brazilian company's CNPJ to the deforestation record of its municipality: registered address, then satellite-detected clearing in that municipality since the EUDR cutoff, with a risk level. Screens suppliers of EU-regulated commodities before the December 2026 deadline. Regional risk indicator to prioritise due diligence — the registered address is not the production plot, and the response says so. Free sample, no payment: https://api.brazilayer.com/v1/desmatamento/amostra$0.02 Base138 ms1 payers100% up
  15. 100api.myco2suite.io/api/v1/cbam/batchBatch EU CBAM: liability for a portfolio of shipments in one call (1–100 shipments; a single live ETS price is shared). Priced per shipment.$0.016 Base127 ms1 payers100% up
  16. 100kronossignals.com/api/v1/forecast-ledgerPaginated list of resolved forecasts with actual outcomes. Each row shows the original ML prediction and its real-world result. Summary includes total count and hit_rate (cache-source rows, matching /api/stats methodology). Filterable by asset, horizon, date range, and source. — $0.02/call. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.$0.02 Base119 ms1 payers100% up
  17. 100penny402.fun/oracleA short, oblique fortune for the wallet that paid — drawn from the day's pool, stable for the whole UTC day, a different one tomorrow. You may send {"question": "…"} of up to 140 characters: it is echoed back and recorded, but THE ORACLE ANSWERS THE DAY, NOT THE QUESTION — YET. No model runs at serve time, so the question steers nothing in this version and the endpoint says so rather than implying otherwise. Nothing staked, nothing to redeem, one round trip.$0.0025 Base35 ms1 payers100% up
  18. 100x402.ochinimus.app/api/peg-universeTokenized stocks ranked by off-hours peg risk: every tokenized US equity we track, with p95 and max deviation bps, market-open deviation as the control, and median liquidity. Dead pools are excluded rather than reported as perfect pegs.$0.05 Solana178 ms1 payers100% up
  19. 100x402.ottoai.services/equity-smart-money-briefSmart-money filing brief for US-listed companies by ticker: SEC Form 4 insider purchases vs sales with filer roles, Schedule 13D/13G beneficial-ownership filing events (subject-validated; not 13F), fundamentals with one-time-item flags (TTM where available), regime-aware filings cadence — ONE AI read of the filing record. Observed filings only; buy/sell advice rejected at generation. Public-domain SEC EDGAR + AI. $0.10 per call.$0.10 Base191 ms1 payers100% up
  20. 100glim.sh/api/v1/twitter/tweets/:id/threadThread context$0.004 Solana163 ms1 payers100% up
  21. 100api.sirenic.eu/v1/score/defaillance/:sirenCredit risk scoring for a French company: a default-risk score (0-100) at ~12 months from a transparent scorecard — filed financial ratios (structure, profitability, liquidity, net cash, debt service, trend), company age, and a hard BODACC override (open insolvency/liquidation, or closure for insufficiency of assets). Returns the score, a qualitative band, every component with its threshold, and a confidence level. Decision-support indicator — NOT a solvency opinion or credit rating.$0.10 Base154 ms1 payers100% up
  22. 100api.sirenic.eu/v1/kyb/:sirenCompany lookup KYB: Know Your Business verification of a French company in one call, official company data for due diligence, compliance and customer onboarding: identity, officers, BODACC legal alerts (insolvency, deregistration), commercial-court decisions (Judilibre), filed financials, sanctions screening of the company and each officer against the 6 official lists, computed VAT number and a completeness score. Per-block provenance: every block states its official register and as-of date.$0.15 Base159 ms1 payers100% up
  23. 100api.sirenic.eu/v1/entreprise/:siren/financesFinancials of a French company (annual accounts filed at INPI, Banque de France ratios): revenue, EBITDA, net income, debt, financial autonomy — ONE row per fiscal year, each graded (qualite: exploitable / a_verifier / non_exploitable, anomalies, doubtful fields); source rows set aside are served in exercices_ecartes with their reason. Consolidated accounts are served apart and graded the same way. Includes the INPI-keyed tax-form line items (up to 20 years) and a perimetre_comptable block.$0.01 Base163 ms1 payers100% up
  24. 100api.losbeto.xyz/br-equityB3 equity or Ibovespa quote (?symbol=PETR4|VALE3|ITUB4|IBOV): price in BRL with daily change, plus the USD equivalent converted at the official BCB PTAX rate. Brazilian equities with official-PTAX USD conversion — rar...$0.02 Base101 ms1 payers100% up
  25. 100api.losbeto.xyz/regimeBull, bear or chop — right now? Regime classification from the last 24h-7d of momentum and realized volatility, with a confidence score. The 'now' is the product: models do not know today.$0.02 Base100 ms1 payers100% up
  26. 100svm402.com/batch/analyzeBatch analysis of up to 20 Solana token mints in ONE paid call, priced at $0.01 USDC per token (the challenge amount is the raw address count x the per-token base). Full deterministic analysis per token — price, liquidity, safety risk, holders, wash verdict — in deterministic input order with per-token error isolation: one bad token never fails the batch. Call this instead of N separate /analyze calls when screening a watchlist. — $0.01 USDC$0.01 Solana109 ms1 payers100% up
  27. 100767-2676.com/v2/receiptSigned time-bounded witness of an agent-carried payload digest; the payload stays with the agent$0.001 Base193 ms1 payers100% up
  28. 100smx.space/v1/markets/moon-race-us-china-test-v2/midRead SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price (bps and cents). Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt$0.01 Base Sepolia284 ms1 payers100% up
  29. 100api.duoleads.com/v1/text/unicodeAnalyse a string at the Unicode level: apply NFC, NFD, NFKC or NFKD, report which forms it is already in, list the scripts present (all Unicode scripts), and flag confusable and homoglyph characters — Cyrillic а in a Latin word, fullwidth or mathematical look-alikes, all-look-alike words — plus zero-width joiners, bidirectional overrides, invisible and blank characters. Returns per-character detail with code points, names and the ASCII character each imitates.$0.05 Base267 ms1 payers100% up
  30. 100api.duoleads.com/v1/time/rruleExpand an RFC 5545 recurrence rule into concrete occurrence timestamps. Accepts an RRULE string with DTSTART, an IANA time zone, and optional EXDATE and RDATE lists, and returns up to 200 occurrences as both local wall-clock times and UTC instants. Supports FREQ, INTERVAL, COUNT, UNTIL, BYDAY, BYMONTHDAY, BYMONTH, BYSETPOS and WKST. Occurrences moved by a DST gap carry gap: true. Rules needing over 50,000 candidate evaluations are rejected.$0.05 Base110 ms1 payers100% up
  31. 100api.duoleads.com/v1/time/business-daysBusiness-day arithmetic with a caller-supplied calendar: add or subtract N working days from a date, or count the working days between two dates. The weekend is a weekday mask (Friday-Saturday and Sunday-only weeks work) and holidays are an explicit date list, so nothing depends on a stale holiday table. Returns the result date, the day count and the skipped dates with reasons. The skipped list is capped at 1,000 entries (skipped_truncated flags it); skipped_total is always exact.$0.05 Base178 ms1 payers100% up
  32. 100api.duoleads.com/v1/id/securityValidate the check digit of a financial security identifier: ISIN (ISO 6166), CUSIP, SEDOL and FIGI. Returns the verdict, the computed correct check character, and for an ISIN the issuing country prefix and the embedded NSIN. Also builds an ISIN from a country code plus a 9-character NSIN. Format and checksum only, no security master lookup.$0.05 Base105 ms1 payers100% up
  33. 100api.duoleads.com/v1/id/gs1Validate and convert GS1 identifiers: GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14, GLN and SSCC. Returns the check-digit verdict, the computed correct check digit, the GTIN-14 form with its indicator digit, and conversion between GTIN-8, GTIN-12, GTIN-13 and GTIN-14. No company-prefix split is returned: GS1's prefix-length table is no longer public data. Also computes a missing check digit from a partial code. Structure only, no product database.$0.05 Base198 ms1 payers100% up
  34. 100vennatta-core.onrender.com/api/v1/extract-documentExtract structured text, summaries, or metadata from supplied document text or a public HTTP(S) document URL.$0.01 Base300 ms1 payers100% up
  35. 100openai.mm.family/x402/v1/models/gpt-5.4/chat/completionsgpt-5.4: OpenAI GPT 5.4 (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.25/7.5, Standard 2.5/15.0, Fast 5.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.4:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  36. 100openai.mm.family/x402/v1/models/o4-mini/chat/completionso4-mini: OpenAI o4 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.55/2.2, Standard 1.1/4.4, Fast 2.0/8.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o4-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  37. 100openai.mm.family/x402/v1/models/o3-mini/chat/completionso3-mini: OpenAI o3 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 1.1/4.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o3-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base161 ms1 payers100% up
  38. 100openai.mm.family/x402/v1/models/o3/chat/completionso3: OpenAI o3 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/4.0, Standard 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o3:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base160 ms1 payers100% up
  39. 100openai.mm.family/x402/v1/models/o1/chat/completionso1: OpenAI o1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 15.0/60.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model o1:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base156 ms1 payers100% up
  40. 100openai.mm.family/x402/v1/models/gpt-6.1-sol-long/chat/completionsgpt-6.1-sol-long: OpenAI GPT 6.1 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6.1-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base164 ms1 payers100% up
  41. 100openai.mm.family/x402/v1/models/gpt-6-sol-long/chat/completionsgpt-6-sol-long: OpenAI GPT 6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base156 ms1 payers100% up
  42. 100openai.mm.family/x402/v1/models/gpt-6-sol/chat/completionsgpt-6-sol: OpenAI GPT 6 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/5.0, Standard 2.0/10.0, Fast 4.0/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-sol:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  43. 100openai.mm.family/x402/v1/models/gpt-6-luna-long/chat/completionsgpt-6-luna-long: OpenAI GPT 6 Luna (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.375, Standard 0.2/0.75, Fast 0.4/1.5; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-luna-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base158 ms1 payers100% up
  44. 100openai.mm.family/x402/v1/models/gpt-6-luna/chat/completionsgpt-6-luna: OpenAI GPT 6 Luna (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.05/0.25, Standard 0.1/0.5, Fast 0.2/1.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-6-luna:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base158 ms1 payers100% up
  45. 100openai.mm.family/x402/v1/models/gpt-6-astra-long/chat/completionsgpt-6-astra-long: OpenAI GPT 6 Astra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 10.0/37.5, Standard 20.0/75.0, Fast 40.0/150.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6-astra-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base159 ms1 payers100% up
  46. 100openai.mm.family/x402/v1/models/gpt-6-astra/chat/completionsgpt-6-astra: OpenAI GPT 6 Astra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 5.0/25.0, Standard 10.0/50.0, Fast 20.0/100.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: low, medium, high, xhigh (model gpt-6-astra:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base160 ms1 payers100% up
  47. 100openai.mm.family/x402/v1/models/gpt-5.6-terra-long/chat/completionsgpt-5.6-terra-long: OpenAI GPT 5.6 Terra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/9.0, Standard 4.0/18.0, Fast 8.0/36.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-terra-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base161 ms1 payers100% up
  48. 100openai.mm.family/x402/v1/models/gpt-5.6-terra/chat/completionsgpt-5.6-terra: OpenAI GPT 5.6 Terra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/6.0, Standard 2.0/12.0, Fast 4.0/24.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-terra:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base158 ms1 payers100% up
  49. 100openai.mm.family/x402/v1/models/gpt-5.6-sol-long/chat/completionsgpt-5.6-sol-long: OpenAI GPT 5.6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 4.0/15.0, Standard 8.0/30.0, Fast 16.0/60.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high, xhigh (model gpt-5.6-sol-long:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  50. 100openai.mm.family/x402/v1/models/gpt-5.1/chat/completionsgpt-5.1: OpenAI GPT 5.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: none, low, medium, high (model gpt-5.1:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base154 ms1 payers100% up
  51. 100openai.mm.family/x402/v1/models/gpt-5-mini/chat/completionsgpt-5-mini: OpenAI GPT 5 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.125/1.0, Standard 0.25/2.0, Fast 0.45/3.6; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: minimal, low, medium, high (model gpt-5-mini:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  52. 100openai.mm.family/x402/v1/models/gpt-5/chat/completionsgpt-5: OpenAI GPT 5 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Levels: minimal, low, medium, high (model gpt-5:<level>). Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base155 ms1 payers100% up
  53. 100openai.mm.family/x402/v1/models/gpt-4o-mini/chat/completionsgpt-4o-mini: OpenAI GPT 4o Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.15/0.6, Fast 0.25/1.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  54. 100openai.mm.family/x402/v1/models/gpt-4o/chat/completionsgpt-4o: OpenAI GPT 4o chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.5/10.0, Fast 4.25/17.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base157 ms1 payers100% up
  55. 100openai.mm.family/x402/v1/models/gpt-4.1-mini/chat/completionsgpt-4.1-mini: OpenAI GPT 4.1 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.4/1.6, Fast 0.7/2.8; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base155 ms1 payers100% up
  56. 100openai.mm.family/x402/v1/models/gpt-4.1/chat/completionsgpt-4.1: OpenAI GPT 4.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of max_tokens. Empty answers are free. Rates: https://openai.mm.family/x402/pricing$0.001 Base163 ms1 payers100% up
  57. 100scvd.store/api/buy/trust_profileThe Hosted Profile. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. A standing page about your endpoint at this store's domain for 30 days per purchase, renewable: your live endpoint passport, the freshness chip, and the signed per-host observation history, aggregated at one URL an operator can hand to anyone. The commission record is signed and its evidence hash bound into your purchase certificate. Never a ver…$21.00 Base161 ms1 payers100% up
  58. 100scvd.store/api/buy/operator_statementThe Operator's Statement. REQUIRES ?wallet= on the paid request — a signed request without it is refused before the gate and no money moves. A statement id and a permanent history URL, readable immediately and filling in four times a day for 30 days: one signed pass per read carrying its exact block range, chain head, inflows and outflows with counts and totals, and a per-pass tally of who paid (capped and saying so); a summary derived at read with distinct payers, the large…$21.00 Base37 ms1 payers100% up
  59. 100scvd.store/api/buy/opening_dayThe Opening Day. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. The launch check's signed JSON walk record (verdict, every stage, what was paid, the settlement transaction where one came back), its evidence hash bound into the purchase certificate's attests field; a conformance watch opened on the same door for seven days, each daily pass signed alone at a history URL; the host's endpoint passport URL; and one …$9.00 Base192 ms1 payers100% up
  60. 100scvd.store/api/buy/change_checkChange Check. REQUIRES ?baseline_cert_id= and ?host= on the paid request — a signed request without them is refused before the gate and no money moves. A signed comparison of a retained original with current recorded observations, dates and gaps Full listing: https://scvd.store/menu/change_check. MCP tool: buy_change_check.$0.005 Base87 ms1 payers100% up
  61. 100alphapipeline-eu.onrender.com/v1/prediction/neg-risk-arbitrageDetect basket arbitrage in a Polymarket neg-risk (mutually-exclusive, multi-outcome) event - since a full YES basket across all outcomes always settles to exactly $1, a basket price away from $1 is a near risk-free edge. Also computes buy/sell_basket_capacity_shares, the actual liquidity-bottleneck size executable right now, so this is not just a top-of-book mirage. Polymarket only (Kalshi's Data ToS forbids this use of their data). Paid in USDC on Base.$0.03 Base223 ms1 payers100% up
  62. 100alphapipeline-eu.onrender.com/v1/arb/spread-matrixCEX-DEX arbitrage spread calculator - compares a global reference price (Coinbase spot, CoinGecko fallback) against a DEX pool price and returns gross/net spread and an is_profitable flag after an assumed gas cost. Paid in USDC on Base.$0.02 Base220 ms1 payers100% up
  63. 100alphapipeline-eu.onrender.com/v1/dex/liquidity-slippageGeckoTerminal-backed DEX pool liquidity and estimated trade slippage, plus fixed $1k/$5k/$10k slippage_tiers for at-a-glance depth checks - size a trade or compare pools before swapping, with a clearly-flagged constant-product approximation model. Paid in USDC on Base.$0.02 Base223 ms1 payers100% up
  64. 100alphapipeline-eu.onrender.com/v1/security/token-riskGoPlus/Honeypot.is-backed token security check - honeypot flag, buy/sell tax, mintability, and ownership renouncement for a given contract address. A pre-trade safety check a bot runs before it buys. Paid in USDC on Base.$0.02 Base225 ms1 payers100% up
  65. 100techforce-agents.onrender.com/api/all-jobsJob listings on demand from 26+ boards worldwide (Indeed, Adzuna, Reed, RemoteOK, Jooble, and more) — title, company, location, salary, job type, description, posting date, and apply URL. Get results for $0.01 per record (minimum 10, up to 100). Enter a keyword, optional location and job type, and how many jobs you want. One call, many boards. Powered by Techforce Global — explore more at https://techforceglobal.com$0.10 Base93 ms1 payers100% up
  66. 100techforce-agents.onrender.com/api/linkedin-candidatesLinkedIn candidate search on demand — full name, job title/headline, profile URL, and bio snippet. Priced $0.05 per candidate (minimum 1, up to 50 per search). Enter a job role, optional location and seniority, and the number of candidates. Fast talent sourcing for recruiters and AI hiring agents. Powered by Techforce Global — explore more at https://techforceglobal.com$0.05 Base199 ms1 payers100% up
  67. 100techforce-agents.onrender.com/api/amazon-productsAmazon product data on demand with key details including ASIN, title, brand, price, currency, rating, review count, availability, thumbnail, and product URL. Get results for $0.03 per record (minimum 1, up to 1,000). Enter your search keywords, optionally choose an Amazon marketplace (com, in, co.uk, de, ca, com.au, ae), and the number of products you need. Discover live Amazon product listings in seconds. Powered by Techforce Global — explore more at https://techforceglobal.com$0.03 Base139 ms1 payers100% up
  68. 100api.flipvo.com/v1/exclusions/screenScreens a person or business name, or an NPI, against the HHS-OIG exclusion list (LEIE, Medicare and Medicaid): potential matches only, each with name score, reasons, NPI, state, specialty, exclusion type and date. Not a determination: confirm a match on the OIG online search with the SSN or EIN. Empty candidates is a paid 200. Not for employment or credit decisions. List dates and code meanings: GET /v1/exclusions/lists (free).$0.01 Base283 ms1 payers100% up
  69. 100ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/generatePasswordSecure password generator API. Generates a cryptographically random password — true randomness an LLM cannot produce on its own. Accepts optional length (8-128), per-character-class toggles (uppercase/lowercase/numbers/symbols) with guaranteed inclusion, and a pronounceable easy-to-say mode.$0.01 Base105 ms1 payers100% up
  70. 100ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/compoundInterestCalculatorCompound interest calculator. Projects the ending value of an investment given a starting principal, monthly contributions, and an annual interest rate, compounded monthly over a chosen number of years.$0.01 Base84 ms1 payers100% up
  71. 100ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/coastFireCalculatorCoast FIRE calculator. Computes the lump sum needed today, invested with zero further contributions, to grow into your full retirement number by your target retirement age, plus (given an ongoing monthly contribution) a year-by-year projection of when your actual trajectory crosses that lump sum.$0.01 Base83 ms1 payers100% up
  72. 100ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/base64DecodeBase64 decoder API. Decodes a base64 string back to UTF-8 text instantly and correctly, avoiding the padding and charset errors LLMs make when decoding base64 by hand.$0.01 Base79 ms1 payers100% up
  73. 100smx.space/smi-api/historySpace Markets Index (SMI), published by Space Markets, Inc.: orbital launch activity from public data. Weekly 2026 launch series, per-launch records (rocket, mission, payloads, mass status) and SMI prints, as small JSON. Each read costs $0.01 test USDC via x402 on Base Sepolia (testnet). Data: GCAT (J. McDowell, planet4589.org), CC BY 4.0, modified by Space Markets. Not affiliated with or endorsed by SpaceX. Data only, not advice. Free: https://smx.space/smi-api/latest$0.01 Base Sepolia118 ms1 payers100% up
  74. 100horizonpulse.dev/api/x402-checkAudit any public x402 endpoint: one unpaid probe → 402 validity, x402 version, decoded price/network/asset, payTo type (EOA vs contract), discovery-metadata hints, pass/warn/fail checks; SSRF-safe; never pays$0.01 Base256 ms1 payers100% up
  75. 100social.gedx402.com/v1/sociavault/instagram/transcriptSociaVault API proxy — instagram-transcript. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.122 USDC per request.$0.122 Base31 ms1 payers100% up
  76. 100horizonpulse.dev/api/screenshotRender a public URL in headless Chromium → PNG/JPEG screenshot (base64 JSON) with final URL, page status and title; viewport/fullPage/format options; SSRF-safe on every sub-request; $0.02$0.02 Base107 ms1 payers100% up
  77. 100alphapipeline-eu.onrender.com/v1/prediction/hip4-alerts/subscribe[EXPERIMENTAL] Subscribe a webhook to receive push notifications when a HIP-4 outcome's probability jumps past a configurable threshold, or a new market appears - so an agent no longer has to poll hip4-snapshot itself. Polls Hyperliquid every ~5 minutes; not a true real-time feed. GET with query params, not JSON body - secret travels in the URL. See free GET /v1/prediction/hip4-alerts/event-types for the event catalog. Paid in USDC on Base.$0.02 Base249 ms1 payers100% up
  78. 100search.agent.s.brave.app/res/v1/local/descriptionsAI-generated descriptions of places found by web or place search. Use it to learn what a place is before recommending it. Pass the location ids, repeated as ids=a&ids=b. Ids expire after about 8 hours.$0.005 Base250 ms1 payers100% up
  79. 100search.agent.s.brave.app/res/v1/local/poisDetails for places found by web or place search: address, opening hours, phone, rating, and reviews. Use it after a search returns location ids. Pass the ids, repeated as ids=a&ids=b. Ids expire after about 8 hours.$0.005 Base224 ms1 payers100% up
  80. 100search.agent.s.brave.app/res/v1/local/place_searchPlace search over more than 200 million places. Returns businesses and points of interest with address, coordinates, rating, and a temporary id. Use it to find places in an area. Pass q and a location such as san francisco ca united states, or latitude and longitude.$0.005 Base225 ms1 payers100% up
  81. 100search.agent.s.brave.app/res/v1/images/searchImage search over Brave's independent index. Returns images with the page they appear on, the image URL, a thumbnail, and the size. Use it to find pictures of a subject. Pass q, and optionally count and safesearch.$0.005 Base192 ms1 payers100% up
  82. 100search.agent.s.brave.app/res/v1/videos/searchVideo search over Brave's independent index. Returns videos with title, URL, duration, creator, and publisher. Use it to find tutorials, reviews, and talks on a topic. Pass q, and optionally count, country, and freshness.$0.005 Base196 ms1 payers100% up
  83. 100search.agent.s.brave.app/res/v1/news/searchNews search over Brave's independent index. Returns recent articles with title, URL, source, and age. Use it for current events, where web search can surface older pages. Pass q, and optionally count, country, and freshness.$0.005 Base185 ms1 payers100% up
  84. 100api.x402ai.dev/api/summarizeSummarize a passage of text into a short, concise summary with no preamble (qwen3.5 2B model). Good for condensing articles, emails, logs or documents before passing them to another agent. POST JSON {"input": string}, up to 3000 characters; returns {summary, model, elapsed_ms}. Typically 5-15 s. Small model: may miss nuance in technical or long text. Text only.$0.02 Base262 ms1 payers100% up
  85. 100smx.space/v1/markets/star-catcher-power-beam-test/midRead SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price (bps and cents). Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt$0.01 Base Sepolia94 ms1 payers100% up
  86. 100smx.space/v1/markets/starship-payload-orbit-test/midRead SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price (bps and cents). Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt$0.01 Base Sepolia61 ms1 payers100% up
  87. 100x402.tbs-digital.com/weather/currentComplete weather bundle in one call: current conditions (temperature, feels-like, humidity, wind speed/direction/gusts, pressure, cloud cover, precipitation, UV, day/night) plus 24-hour hourly and 7-day daily forecast, air quality (AQI, PM2.5, PM10, ozone), solar radiation, and severe-weather alerts. Query by city name or lat/lon. Times in the location local timezone. Most complete weather data per call.$0.001 Base195 ms1 payers100% up
  88. 100lin-desk-x402.lindesk.workers.dev/v1/extractFetch any public web page or PDF and return clean main-content Markdown for AI agents / LLMs (boilerplate, nav and ads removed) plus title & metadata. CJK-aware; optional Simplified<->Traditional (incl. Hong Kong / Taiwan) conversion. Respects robots.txt. $0.002 per call, USDC on Base (x402). Failed extractions are not charged.$0.002 Base161 ms1 payers100% up
  89. 100lin-desk-x402.lindesk.workers.dev/v1/dataformatDeterministic data convert and JSON Schema validate for AI agents: CSV/JSON/YAML/XML transforms plus Draft 2020-12 schema check. $0.001 per call, USDC on Base (x402). Max body 100 KiB. No network I/O; XXE-safe XML. Failures are not charged.$0.001 Base217 ms1 payers100% up
  90. 100x402.agentindex.world/researchJev-powered research: routed search, cited answer, claims verified against sources. Ask a question, get a 5-8 sentence answer, each claim tagged to a numbered source, built from real page content - no invented facts. A fast paid LLM writes it, under 4.5s guaranteed; on a rare miss, a no-LLM extractive fallback (top sentences from the sources, picked by Jev) takes over instead, marked "synthesis":"extractive". Try GET /research/sample.$0.005 Base163 ms1 payers100% up
  91. 100api.maxwellinternational.ai/v1/food/near-resortRestaurants, cafes and bars around a ski resort, tied to its arrival point (ticket office or main lift). tier=near: everything within 1 km ($0.02). tier=around: the ring from 1 to 15 km ($0.02; does not include the first kilometre). Nearest first, with distance, cuisine, hours, menu availability and each restaurantId for /v1/food/menu; every answer says how many are in the other tier. No Google data.$0.02 Base188 ms1 payers100% up
  92. 100intel.degenscan.io/v1/oracle/forecastCalibrated YES-probability for a binary market question: Monte Carlo of LLM agent societies + base-rate-anchored expert panel, grounded in live price, vol, funding, Polymarket odds and calendar. Async: 202 + forecast_id, poll free. Returns probability, 80% interval, edge vs market, drivers, commitment hash. Public Brier record.$0.25 Base143 ms1 payers100% up
  93. 100intel.degenscan.io/v1/brief/:asset_idPremium one-call pre-trade briefing for an asset: net pressure and drivers, headlines with sentiment, SEC filings, exposure map, related Polymarket odds, upcoming catalysts, venue status. Replaces six calls.$0.10 Base263 ms1 payers100% up
  94. 100intel.degenscan.io/v1/oracle/board/:slugOne standing forecast from the daily oracle board by slug (e.g. btc-120k-oct31): probability, 80% interval, disagreement, drivers, failure modes, base rate, market odds, edge, commitment hash.$0.002 Base274 ms1 payers100% up
  95. 100intel.degenscan.io/v1/token/verdict/:addressToken contract risk verdict for agents that buy, snipe or route swaps: send a contract address (Base default; ethereum, bsc, arbitrum, polygon, optimism, avalanche via ?chain=, or a Solana mint) → DANGER / HIGH_RISK / CAUTION / LOW_RISK, 0–100 score and named flags (honeypot, taxes, mint/pause/blacklist, hidden owner, unverified, proxy, holder concentration, unlocked LP, thin/new liquidity). GoPlus + DexScreener, deterministic, 5-min cache.$0.01 Base275 ms1 payers100% up
  96. 100intel.degenscan.io/v1/polymarket/:marketEvidence pack for one Polymarket market: current odds plus the primary-source events (Fed, SEC, agencies, disasters, hacks) in our feed that bear on the question, with relevance and corroboration. For agents trading or quoting prediction markets.$0.01 Base263 ms1 payers100% up
  97. 100intel.degenscan.io/v1/graph/:asset_idExposure sub-graph around an asset: suppliers, customers, countries, commodities, regulators, correlated assets, critical facilities.$0.002 Base219 ms1 payers100% up
  98. 100intel.degenscan.io/v1/impact/:asset_idNet directional pressure on one asset from recent events, with the source events.$0.003 Base232 ms1 payers100% up
  99. 100intel.degenscan.io/v1/filings/:tickerSEC EDGAR filings touching one US issuer: 8-K by item, Form 4 insider trades, 13D/G activist stakes, S-1 offerings, with impact direction and link. Public-domain source.$0.002 Base267 ms1 payers100% up
  100. 100intel.degenscan.io/v1/news/:tickerHeadlines touching one asset (press wires, releases, halts, hacks, media) with source tier, corroboration and a heuristic sentiment score (-1..1). Links only, no bodies.$0.002 Base146 ms1 payers100% up