x402watch

37,707 paid endpoints are listed. 23,020 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 2026-09-30 05:46 UTC · 37,707 probed

23,020 answering 4029,132 down4,532 rejecting1,023 no paywall2,818 price drift
  1. 100x402.ottoai.services/equity-newsLatest company news for a vendor-resolved equity: licensed Finnhub headlines from the trailing seven days with publication time, source, and summary. Only articles that name the company are served — labelled `primary` when the headline names it, `mentioned` when only the summary does — so a symbol-tagged story about another company never fills the list. Redirect URLs withheld; no sentiment is fabricated.$0.003 Base178 ms9 payers100% up
  2. 100x402.ottoai.services/token-priceLive DEX token price in USD by ticker symbol or contract address across Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism and Avalanche (bare 0x tries Base then all chains, else network:address). Symbols resolve to the canonical top-market-cap asset — squat-proof. Flat JSON: price, 24h change, volume, market cap, FDV, liquidity — echoes the matched deployment. Token price, crypto price, DEX price. $0.001 per call.$0.001 Base178 ms9 payers100% up
  3. 100x402.ottoai.services/pm-marketsTop Polymarket prediction markets RIGHT NOW: the 25 highest-volume open markets with live odds (outcome probabilities), best bid/ask, spread, last trade price, 24h + total volume, liquidity, 1d/7d price change, end date and event link. Flat JSON, refreshed every 5 minutes. Prediction market odds, Polymarket data, event probabilities, market sentiment. $0.001 per call.$0.001 Base204 ms9 payers100% up
  4. 100api.oblique.markets/api/v1/paid/bazaar-price-statsUse when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.$0.002 Base28 ms9 payers100% up
  5. 100api.nansen.ai/api/v1/tgm/flow-intelligenceGet "Token God Mode" (TGM) flow intelligence data$0.01 Base86 ms9 payers100% up
  6. 100api.nansen.ai/api/v1/tgm/flowsGet "Token God Mode" (TGM) flows data$0.01 Base82 ms9 payers100% up
  7. 100api.onesource.io/standard/v1/decisions/planThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Simulates keep, selective, and aggressive Branch-expansion strategies over a horizon, seeded from this API's own live routes. A simulation for exploring tradeoffs, not a forecast.$0.05 Base54 ms9 payers100% up
  8. 100api.onesource.io/standard/v1/decisions/exitThe Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Everything relevant to deciding whether to exit a charter's branches right now, bundled into one call.$0.05 Base173 ms9 payers100% up
  9. 100google-trends.use.x402atlas.com/interest-by-regionGoogle Trends interest by region for a keyword — search popularity by geography for geo-targeting, local SEO and market research.$0.03 Base43 ms8 payers100% up
  10. 100api.bitrefill.com/x402/invoice/createCreate a price-locked USDC invoice for one or more gift cards, eSIMs, or mobile top-ups.$0.002 Base169 ms8 payers100% up
  11. 100kronossignals.com/api/v1/funding-extremesCrypto funding-rate extremes screener: scans all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). Uses z-score (30-day baseline) to identify statistically extreme funding: |z|≥2 = extreme, |z|≥3 = critical. Returns only assets clearing the threshold. Real-time from Kronos market_signals (OKX data). Pay-per-call via x402.$0.02 Base97 ms8 payers100% up
  12. 100kronossignals.com/api/v1/digest/btcStructured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. 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 Base108 ms8 payers100% up
  13. 100kronossignals.com/api/v1/liquidations/ethForward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.$0.02 Base121 ms8 payers100% up
  14. 100glim.sh/api/v1/web/fetchFetch a web page and extract clean content$0.002 Solana148 ms8 payers100% up
  15. 100api.nansen.ai/api/v1/smart-money/dex-tradesGet Smart Money DEX Trades Data$0.05 Base106 ms8 payers100% up
  16. 100api.tickersfeed.net/defi/protocolsTop DeFi protocols ranked by total value locked (TVL) — name, category, chains, 1d/7d TVL change, and mcap/TVL ratio as JSON. Filterable by chain and category. Use for: DeFi market share, protocol comparison, TVL rankings, ecosystem research. $0.001 USDC per call.$0.001 Base129 ms8 payers100% up
  17. 100api.kadec0.xyz/v1/geocodeGeocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address.$0.01 Base89 ms7 payers100% up
  18. 100minifetch.com/api/v1/x402/run/seo-page-auditRuns a full technical SEO audit on a single web page. Verify redirects, headers, meta tags, indexability, JSON-LD, missing or conflicting canonicals and more. No black-box scoring; just deterministic, composable signal you can act on. Every threshold is documented at https://minifetch.com/skills/seo-page-audit/SKILL.md Obeys robots.txt. Supports GET & POST$0.01 Base40 ms7 payers100% up
  19. 100kronossignals.com/api/v1/stablecoinsStablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.$0.02 Base108 ms7 payers100% up
  20. 100x402.ottoai.services/pools-trendingTrending DEX pools right now — Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism, Avalanche, or network=all for cross-chain across those same 8. Top 10 hottest pools ranked by GeckoTerminal 24h trending: pool address, DEX, price USD, 24h price change, 24h volume, liquidity (TVL), FDV, 24h txns as flat JSON numbers. Trending pools, hot pools, top movers, momentum screener, what is pumping. $0.001 per call.$0.001 Base176 ms7 payers100% up
  21. 100win.oneshotagent.com/v1/tools/research/personDeep person research — returns enrichment, social profiles, articles, and dossier$0.05 Base73 ms7 payers100% up
  22. 100x402.ottoai.services/news-recapsA tight 4-6 sentence crypto market recap an agent can ingest whole — direction and why, the 2-3 developments that matter, anything notable on the top-10 board — plus the ranked stories as typed fields: stories[] (rank, title, whyItMatters, url, publishedAt, source; linked by exact title, null when unmatched). Distilled from the Otto news engine; served while fresh, refreshed on demand.$0.003 Base186 ms7 payers100% up
  23. 100api.nansen.ai/api/v1/token-screenerRetrieve token screener data$0.01 Base148 ms7 payers100% up
  24. 100x402.ottoai.services/web-extractTurn any URL into clean, LLM-ready markdown — the main article extracted, nav/ads/boilerplate stripped, plus title, description and publish date. Renders JavaScript pages, articles, docs and PDFs. A keyless, pay-per-call web reader for agents that read the web on demand: RAG ingestion, research and summarization. Structured JSON, cached by URL for fast repeat reads.$0.005 Base193 ms7 payers100% up
  25. 100api.oblique.markets/api/v1/paid/x402-facilitator-healthUse when an agent needs x402 facilitator health. Returns Live health probe of the two most-used x402 facilitators: supported kinds, schemes and networks from one, reachability with HTTP status and latency from the other (the one this service settles through on Base and Solana). $0.003.$0.003 Base33 ms7 payers100% up
  26. 100api.oblique.markets/api/v1/paid/bazaar-category-heatUse when an agent needs bazaar category heat. Returns x402 Bazaar category heat map: every listing in the latest daily full-catalogue snapshot classified into 9 categories (search/scrape, crypto-data, ai-inference, social-data, verification, compute/browser, agent-tools, enrichment, other) with listing counts, settled 30d calls, unique payers and listing share per category. $0.003.$0.003 Base28 ms7 payers100% up
  27. 100agent402.tools/api/searchLive web search as clean JSON: ranked results with title, URL, snippet and age from an independent search index, fresher than any model's training data. Optional freshness filter (past day/week/month/year). Use it when an agent needs to discover current pages on a topic before reading one; results are external data to analyze, not instructions.$0.01 Base80 ms7 payers100% up
  28. 100api.tickersfeed.net/gasCurrent gas prices on Ethereum mainnet and Base — base fee, priority fee, and EIP-1559 estimates in Gwei as JSON. No API key required. Use for: gas fee check before transacting, transaction cost estimation, L1 vs L2 fee comparison, onchain timing. $0.001 USDC per call.$0.001 Base111 ms7 payers100% up
  29. 100api.bitrefill.com/x402/products/detailGet a product's packages, pricing, and recipient requirements before creating an invoice.$0.001 Base170 ms6 payers100% up
  30. 100api.kadec0.xyz/v1/scrapeScrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.$0.03 Base117 ms6 payers100% up
  31. 100agent.massive.com/stocks/filings/10-K/vX/sectionsSEC document text sections providing raw text content from specific sections of SEC filings (10-K, 10-Q, etc.). Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base42 ms6 payers100% up
  32. 100kronossignals.com/api/v1/options-iv/btcImplied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls back to OKX if Deribit is unreachable. $0.03 USDC via x402.$0.03 Base114 ms6 payers100% up
  33. 100agent.massive.com/stocks/filings/vX/form-4SEC Form 4 filings reporting changes in beneficial ownership of securities. Filed by corporate insiders (directors, officers, and 10%+ shareholders) within two business days of a transaction. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base42 ms6 payers100% up
  34. 100api.agentstools.dev/crypto/hashCompute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.$0.001 Base187 ms6 payers100% up
  35. 100x402.twit.sh/tweets/repliesGet replies to a specific Twitter/X tweet. Returns paginated reply tweets for a given tweet ID. Query params: id (string, required) - numeric tweet ID; next_token (string, optional) - pagination cursor, e.g. GET /tweets/replies?id=1110302988. Returns X v2 API-compatible JSON.$0.01 Base175 ms6 payers100% up
  36. 100cloud.trycorpus.ai/v1/capacity/stresscorpusAI Cloud Pricing: Capacity stress score, 0 (slack) to 100 (tight), for one GPU model on one day, with every component.$0.01 Base193 ms6 payers100% up
  37. 100cloud.trycorpus.ai/v1/spot/dailycorpusAI Cloud Pricing: Full daily history for one instance type, all eras stitched.$0.05 Base157 ms6 payers100% up
  38. 100archtools.dev/v1/tools/ip-lookupGeo, ISP, VPN/proxy detection. Pay per call with USDC (x402) or credits - archtools.dev$0.01 Base296 ms6 payers100% up
  39. 100api.kadec0.xyz/v1/papersAcademic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.$0.02 Base96 ms5 payers100% up
  40. 100api.kadec0.xyz/v1/serp-readWeb search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round of scrape calls. Per-page fetch errors are reported honestly per URL.$0.08 Base87 ms5 payers100% up
  41. 100glim.sh/api/v1/youtube/getFetch a YouTube transcript from a video URL or 11-char id (video_id, also accepted as ref or url); returns a presigned download URL to the transcript$0.01 Solana142 ms5 payers100% up
  42. 100api.kadec0.xyz/v1/cveHandler$0.01 Base88 ms5 payers100% up
  43. 100glim.sh/api/v1/github/searchSearch GitHub repositories, conversations, and discussions$0.002 Solana144 ms5 payers100% up
  44. 100rubric-protocol.com/v1/x402/attested-screeningAttested sanctions and export-control screening: OFAC SDN and Consolidated (primary and alternate spellings), UN Security Council, UK OFSI, EU and BIS Denied Persons. Fuzzy token matching (screen-match-v2.2): matches are candidates for human adjudication, not determinations. Every response discloses the matching rule in full, the exact source files, SHA-256 hashes and listVersion screened, match type and edit distance per hit, query hash and timestamp. ML-DSA-65 signed, Hedera-anchored.$0.01 Base47 ms5 payers100% up
  45. 100agent.massive.com/stocks/filings/vX/indexSEC EDGAR master index providing metadata for all SEC filings including form types, filing dates, and direct links to source documents. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base53 ms5 payers100% up
  46. 100agent.massive.com/v1/indicators/rsi/:stockTickerGet the relative strength index (RSI) for a ticker symbol over a given time range. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base39 ms5 payers100% up
  47. 100readx.sh/api/:nameA user's timeline: tweets, retweets and quotes. Example: GET /api/jack$0.01 Base26 ms5 payers100% up
  48. 100kronossignals.com/api/v1/gex/btcGamma Exposure (GEX) and max-pain options tool for BTC and ETH from the Deribit public API. Returns an aggregate GEX strike ladder (dealer-convention net gamma per strike), gamma flip level (zero-cumulative-GEX strike), spot regime above or below flip, max-pain strikes for upcoming weekly and monthly expiries, an expected-move cone (ATM-IV-derived 1-sigma, front expiry), and a heuristic pin-risk score. 15-minute in-memory cache. $0.04 USDC via x402.$0.04 Base111 ms5 payers100% up
  49. 100agent.massive.com/stocks/filings/8-K/vX/disclosuresSEC 8-K filing disclosure categorization. A single 8-K filing can produce multiple rows when it covers multiple disclosure types — each row represents one tagged disclosure within the filing, classified into primary, secondary, and tertiary categories with a supporting text excerpt. The full classification list is available at /stocks/taxonomies/vX/disclosures. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base39 ms5 payers100% up
  50. 100readx.sh/api/searchSearch tweets. Start the query with @ (or add f:user) to search users instead. Example: GET /api/search?q=typescript$0.01 Base49 ms5 payers100% up
  51. 100api.robinx.io/agent/featuresToken-level feature row for one Robinhood Chain token: launch facts, current activity/deployer/price/caller state, and the observed mention record — inputs for your own model (no score, no recommendation)$0.03 Base70 ms5 payers100% up
  52. 100x402.aispace.bot/api/v1/embeddingsText embeddings on Venice models for retrieval, RAG, and semantic search, paid per request in USDC on Base via x402, no API key. Resolve a model id from GET /api/v1/models?type=embedding.$0.01 Base168 ms5 payers100% up
  53. 100kronossignals.com/api/v1/forecast/dogeDogecoin (DOGE) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, run hourly: served while a recent run exists, otherwise the composite heuristic; model_type says which. Per-asset served accuracy is scored live at /api/stats (beta_accuracy.per_asset), not a backtest. Pay-per-call via x402 on Base USDC.$0.05 Base125 ms5 payers100% up
  54. 100api.hyperextend.xyz/v1/outcome_ctx/%231000/latestThe most-recent N HIP-4 outcome-side rows (≤5000). Priced per row ($0.000025 premium); served live.$0.0035 Base207 ms5 payers100% up
  55. 100agent-arcade.use.x402atlas.com/trivia/checkTrivia Daily answer check — validates one opaque choice ID and explains correct answers from the curated record.$0.005 Base68 ms5 payers100% up
  56. 100coil.trade/api/board/leadersToday's market leaders, ranked — which stocks are leading the tape right now? Top leadership names per book (S&P 500, Nasdaq-100, macro) by opportunity score, each with opportunity 0-100 + percentile, entry state, hold strength, growth score, dollar volume and coil read. Plus the AWARENESS block: sector money flows (mean move + breadth), coiled setups (compression or held post-catalyst, coil_score 0-100) and coverage. Refreshed ~5 min in market hours, timestamped. Research, not advice.$0.01 Base61 ms5 payers100% up
  57. 100api.oblique.markets/api/v1/paid/crypto-priceUse when an agent needs a current USD price for a major token by symbol before quoting, converting or rebalancing. Returns Spot USD price for one crypto asset by ticker symbol, with 24h change, market cap and volume when the source reports them. $0.004.$0.004 Base35 ms5 payers100% up
  58. 100api.oblique.markets/api/v1/paid/bazaar-seller-rankUse when an agent needs bazaar seller rank. Returns x402 Bazaar seller leaderboard: top 25 seller addresses ranked by settled 30d calls in the latest daily full-catalogue snapshot, with listing count, unique 30d payers and each seller’s busiest resource. $0.003.$0.003 Base34 ms5 payers100% up
  59. 100vaaya.ai/api/run/crw/scrapeCRW — Scrape a single URL to clean markdown/HTML/JSON (Firecrawl-compatible). Pass `url`; optional `formats` (markdown|html|rawHtml|plainText|links|json|summary|screenshot, default markdown), `onlyMainContent` (default true), `renderJs` (null = auto-detect), `waitFor` (ms), `stealth` (anti-bot browser), `country` (2-letter proxy egress), `jsonSchema` (structured output). Sync — returns the scraped content directly. Cheapest full-featured scrape rung.$0.01 Base299 ms5 payers100% up
  60. 100ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/contractsSearch 100 packaged federal government contract awards from USAspending.gov with a live source link for every award ID.$0.01 Base58 ms5 payers100% up
  61. 100agent402.tools/api/llmLLM inference proxy - send an OpenAI-format chat/completions request and get a response from GPT-4o-mini. Supports vision (up to 2 image URLs, low detail) and structured output (response_format: json_object or json_schema). No API key needed; pay per call via x402. Input capped at 16k chars, output at 4096 tokens.$0.01 Base116 ms5 payers100% up
  62. 100agent402.tools/api/renderRender a page in a real headless Chromium browser (JavaScript executed) and return its main content as clean markdown. Use it for single-page apps and JS-heavy sites where a plain fetch returns an empty shell.$0.01 Base85 ms5 payers100% up
  63. 100api.nansen.ai/api/v1/perp-screenerGet Perpetual Contract Screening Data$0.01 Base117 ms5 payers100% up
  64. 100x402.twit.sh/tweets/quote_tweetsGet a list of tweets that quote a specific tweet. Returns paginated quote tweets with author profiles for a given tweet ID. Query params: id (string, required) - numeric tweet ID; next_token (string, optional) - pagination cursor, e.g. GET /tweets/quote_tweets?id=1110302988. Returns X v2 API-compatible JSON.$0.01 Base182 ms5 payers100% up
  65. 100agent402.tools/api/block-numberThe latest block number on Ethereum, Base, Polygon, Arbitrum, or Optimism. The cheapest possible on-chain read - the hello world of paid chain access. Keyless multi-endpoint failover. ?network=base$0.001 Base85 ms5 payers100% up
  66. 100api.craigmbrown.com/v1/services/ops.link-integrityBlindOracle by Craig M. Brown (craigmbrown.com) - counterparty-risk infrastructure sold to autonomous AI agents; self-built multi-agent framework (42+ agents); ERC-8004 agent passport #60979; paid via x402 in USDC on Base | Deterministic HEAD/GET check of every URL in the task; PASS/FAIL verdict with per-URL status codes. Post-deploy verification SKU (RQ-BO-DELEGATE-02).$0.01 Base51 ms5 payers100% up
  67. 100x402.twit.sh/articles/by/idGet full X Article content by tweet ID$0.01 Base176 ms5 payers100% up
  68. 100regimeshift.xyz/api/v1/rate/sofr/usdAgent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1.$0.001 Base142 ms5 payers100% up
  69. 100api.predictionmarketdata.io/prediction-marketsSearch, filter, and sort prediction markets across exchanges.$0.001 Base160 ms5 payers100% up
  70. 100win.oneshotagent.com/v1/tools/enrich/companyCompany enrichment from domain, name, LinkedIn URL, or ticker$0.005 Base78 ms5 payers100% up
  71. 100cloud.trycorpus.ai/v1/index/fixingcorpusAI Cloud Pricing: One day's fixing for a ticker: median USD per GPU-hour of eligible quotes, with low, high and count.$0.01 Base199 ms5 payers100% up
  72. 100cloud.trycorpus.ai/v1/tokens/fixingcorpusAI Cloud Pricing: One day's token price fixing for a ticker such as CX.TOK.CLAUDESONNET5.IN.$0.01 Base210 ms5 payers100% up
  73. 100cloud.trycorpus.ai/v1/spot/latestcorpusAI Cloud Pricing: Price currently in force per zone and product for one instance type.$0.01 Base245 ms5 payers100% up
  74. 100x402.ottoai.services/8k-material-events8-K filings by ticker — the item-coded SEC material-event feed: every 8-K a US-listed company filed in 90 days, tagged with the SEC's own item codes and official titles (1.01 material agreement, 1.05 cybersecurity incident, 3.01 delisting notice, 5.02 officer change, 8.01 other). Returns event and filing dates separately, amendments labelled, EDGAR links. Earnings-only filings excluded and counted. Public-domain SEC EDGAR. $0.003 per call.$0.003 Base202 ms5 payers100% up
  75. 100www.cultos.dev/services/site-seo-auditSite SEO Audit by Cult OS$0.20 Base90 ms5 payers100% up
  76. 100api.tickersfeed.net/crypto/marketGlobal cryptocurrency market statistics — total market cap, 24h volume, Bitcoin dominance, and active coin count as JSON. Use for: crypto market overview, total market cap check, dominance analysis, risk-on/risk-off assessment. $0.001 USDC per call.$0.001 Base112 ms5 payers100% up
  77. 100api.myceliasignal.com/oracle/price/eth/usdReal-time Ethereum price in USD, a median across 6 exchanges including Coinbase, Kraken, Bitstamp and Bullish — Ed25519 signed attestation$0.01 Base181 ms5 payers100% up
  78. 100api.myceliasignal.com/oracle/stress/marketMSSI market stress index — composite systemic risk signal across crypto, equity, credit and volatility markets — Ed25519 signed attestation$0.05 Base162 ms5 payers100% up
  79. 100api.tickersfeed.net/econ/yieldsFull US Treasury yield curve in one call — every tenor from 1-month to 30-year (1M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y) with current rates, key spreads, and recession inversion flags (10Y-2Y and 10Y-3M) as JSON. Powered by FRED (Federal Reserve). Use for: yield curve analysis, recession signal / curve inversion check, interest rate term structure, bond market monitoring, macro trading. $0.005 USDC per call.$0.005 Base279 ms5 payers100% up
  80. 100email-verify-api-production-d262.up.railway.app/verifyVerify a single email: syntax, MX records, SMTP RCPT probe, catch-all, disposable, role-based, free-provider, typo suggestion, 0-100 score, and verdict.$0.001 Base181 ms5 payers100% up
  81. 100marketplace-price-api-production.up.railway.app/tcg/searchSearch TCGPlayer for trading card prices (Pokemon, Magic, Yu-Gi-Oh, etc.) by card name. Returns matching cards with market prices as JSON.$0.001 Base238 ms5 payers100% up
  82. 100api.signalfuse.co/v1/arena/vwap_reversion/BTCIndividual arena strategy signal$0.001 Base119 ms5 payers100% up
  83. 100api.kadec0.xyz/v1/weatherWeather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitude. Daily forecast resolution. Keyless, via Open-Meteo.$0.005 Base86 ms4 payers100% up
  84. 100api.bitrefill.com/x402/esims/searchSearch prepaid eSIM data plans for 180+ countries and regions. Pay in USDC via x402, no account.$0.002 Base175 ms4 payers100% up
  85. 100toolcall.click/t/jobs/searchLive job postings without scraping: company= returns an employer's current openings straight from their official ATS board (Greenhouse, Lever, Ashby, SmartRecruiters) with title, location, department, type and apply URL; query= searches remote-heavy job APIs (Remotive, Arbeitnow) by keyword. Optional location= filter. JSON response. $0.02 USDC per call, pay via x402, no API key.$0.02 Base26 ms4 payers100% up
  86. 100rubric-protocol.com/v1/x402/attested-verificationAttested verification-event custody: seal the fact that an identity/liveness/KYC check ran, its method, provider, and result — without the subject's identity ever reaching Rubric. Caller submits an opaque subjectRef (hash it client-side); the sealed record binds event to outcome, ML-DSA-65 signed and Hedera-anchored. Prove a verification happened and what it said, forever, to anyone.$0.005 Base44 ms4 payers100% up
  87. 100hotels.use.x402atlas.com/searchHotel search — find hotels & vacation rentals anywhere by destination with live nightly rates, star class, guest ratings, amenities, photos & coordinates as clean JSON.$0.05 Base96 ms4 payers100% up
  88. 100minifetch.com/api/v1/x402/extract/url-metadataFor technical SEO & metadata indexing: Extracts rich structured metadata from your URL (favicons, title, description, canonical, meta tags, Open Graph, Twitter Card, JSON-LD, redirects, headers, performance, headings, images). Returns everything by default; query params narrow response (pass atomic field names, ex: ?fields=title,description or named groups: network,meta,og,twitter). ?omitEmpty=true trims tokens for AI agents. Obeys robots.txt. Supports GET & POST$0.002 Base40 ms4 payers100% up
  89. 100agent.massive.com/stocks/filings/vX/risk-factorsThe risk factors identified in companies' 10K filings. Can't find what you're looking for? POST feedback to /feedback, no charge.$0.01 Base50 ms4 payers100% up
  90. 100agentres.dev/api/wait-timesLive restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.$0.01 Base123 ms4 payers100% up
  91. 100api.robinx.io/social/followsPollable tape of follow/unfollow transitions by Robinhood Chain principal accounts on X — each followed handle crossed with its measured caller record$0.02 Base71 ms4 payers100% up
  92. 100x402-echo-service.onrender.com/hashCompute cryptographic digests of a string. POST {"input":"...","algorithms":["sha256"]} and receive one hex digest per requested algorithm. Supports sha256, sha512 and keccak256. Deterministic, no storage, no upstream calls.$0.001 Base102 ms4 payers100% up
  93. 100x402.ottoai.services/technical-signalsDaily technical snapshot for a vendor-resolved equity from licensed Tiingo adjusted closes: Wilder RSI-14, 20-session momentum, SMA-20/SMA-50, price distance from each average, above/below/mixed trend state, and the latest observed golden/death cross. Price and averages retain Tiingo payload units because the captured feed does not identify a currency.$0.003 Base239 ms4 payers100% up
  94. 100x402.ottoai.services/analyst-ratingsAnalyst consensus for a vendor-resolved equity: the latest buy/hold/sell distribution (strong buy · buy · hold · sell · strong sell counts, total, and a deterministic consensus label) plus up to six months of the same distribution so an agent can read the DRIFT — is the street moving toward or away from the name. Vendor counts (Finnhub), our label rule stated in the payload. No price targets and no per-analyst grade actions are served.$0.003 Base190 ms4 payers100% up
  95. 100coil.trade/api/crypto/day24/7 crypto day-state board — 81 Robinhood-tradable coins (BTC, ETH, SOL, XRP, DOGE…). Per coin: price, 24h/7d change, trend vs 20/50/200-day, ATR%, RS vs BTC, tape lights, volume z, room to the 20d high, UP/CHOP/DOWN state, ranks — PLUS day-trade grades: GO, FUEL and EFF vs the BTC anchor, SETUP shape and ROOM in bars. Publishes every ~5 minutes around the clock when the market moved. A state map, not a ranking. Research, not advice.$0.005 Base202 ms4 payers100% up
  96. 100api.oblique.markets/api/v1/paid/inferenceUse when an agent wants a chat completion paid per call with no API key, on Base or Solana. Returns Chat completion from one of six catalogued models in the standard messages request shape, with token usage and the settled charge. $1.00 maximum on Base; $0.01 fixed on Solana. Rail: $0.01 fixed on Base.$0.01 Base35 ms4 payers100% up
  97. 100x402.ottoai.services/earnings-calendarEarnings calendar and surprise history for a vendor-resolved equity: next report date/session with EPS and revenue estimates, latest reported EPS versus estimate, surprise percentage, and four-quarter history. Monetary estimates retain Finnhub payload units because the captured feed does not identify a currency. Event-window price drift is explicitly unavailable rather than inferred.$0.003 Base183 ms4 payers100% up
  98. 100x402.ottoai.services/insider-tradesSEC Form 4 insider trades for any US-listed company by ticker: who bought and sold (officer/director/10% owner), purchase vs sale counts and dollar values (SEC codes P/S: open-market or private), net purchase-sale balance, shares held after, filing links — hourly snapshot; 4/A-amended windows withheld once detected (~1h lag): unpaid 503. Insider trading data, insider buys, smart money. Public-domain SEC EDGAR. $0.003 per call.$0.003 Base182 ms4 payers100% up
  99. 100api.oblique.markets/api/v1/paid/b402-preflightUse when an agent needs b402 preflight. Returns Validate BNB/B402 payment intent freshness, recipient, amount, deadline, fee cap, public BNB balance, and recent activity without custody or payment relay. $0.01.$0.01 Base28 ms4 payers100% up
  100. 100api.oblique.markets/api/v1/paid/listing-triageUse when an agent is deciding whether one Bazaar listing is stable enough to depend on. Returns Listing history triage: persistence, price changes, duplicate variants, and buy signal. $0.01.$0.01 Base38 ms4 payers100% up