x402watch

19,848 paid endpoints are listed. 19,062 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 2026-10-01 13:23 UTC · 19,848 probed

19,062 answering 402233 down426 rejecting127 no paywall2,385 price drift
  1. 97saylorinnovations.com/api/kb/marketplace-product-feedMarketplace Product-Feed Cleaner. A marketplace-ready product feed whose IDs, titles, categories, condition, price, quantity, images, descriptions, and policy fields come from authoritative inventory, validate per channel, reconcile counts/totals, and produce explicit rejects instead of invented facts.$0.01 Solana115 ms1 payers100% up
  2. 97saylorinnovations.com/api/kb/accessibility-remediationAccessibility Remediation Guide. A prioritized set of source-level fixes that makes critical journeys perceivable, operable by keyboard, understandable, and robust with semantics, focus, labels, contrast, motion, errors, and assistive-technology verification against WCAG 2.2 criteria.$0.01 Solana125 ms1 payers100% up
  3. 97saylorinnovations.com/api/kb/seo-structured-dataSEO and Structured-Data Generator. Page-specific metadata, canonical/index rules, sitemap entries, and JSON-LD that describe visible truthful content, validate technically, remain consistent across variants, and can be monitored after publication.$0.01 Solana118 ms1 payers100% up
  4. 97saylorinnovations.com/api/kb/responsible-scraperResponsible Scraper Design Guide. A bounded scraper with confirmed permission/terms/robots handling, descriptive identity, rate/backoff/cache behavior, stable extraction fallbacks, provenance, validation, privacy limits, and a kill switch.$0.01 Solana114 ms1 payers100% up
  5. 97saylorinnovations.com/api/kb/oauth-api-authOAuth and API Authentication Resolver. A reproducible OAuth flow in which redirect, state/PKCE, issuer, audience, scopes, token lifetime, refresh, tenant, and API environment agree, with secrets protected and negative tests proving denial.$0.01 Solana112 ms1 payers100% up
  6. 97saylorinnovations.com/api/kb/reliable-webhookReliable Webhook Implementation Guide. A webhook receiver that authenticates the exact raw request, blocks replay, acknowledges within provider deadlines, durably queues work, processes idempotently, retries with bounded policy, and supports replay/reconciliation without duplicate business effects.$0.01 Solana118 ms1 payers100% up
  7. 97saylorinnovations.com/api/kb/domain-hosting-migrationDomain and Hosting Migration Guide. A live domain moved to the intended host with complete DNS records, pre-issued TLS, low controlled TTL, validated content/forms/auth, preserved mail/services, monitored convergence, and a time-bounded rollback.$0.01 Solana119 ms1 payers100% up
  8. 97saylorinnovations.com/api/kb/website-launch-preflightWebsite Launch Preflight. A launch candidate that passes functional, mobile, accessibility, metadata, security-header, form, analytics, performance, and recovery checks on the actual production hostname before traffic is sent to it.$0.01 Solana111 ms1 payers100% up
  9. 97saylorinnovations.com/api/kb/disk-full-boot-recoveryDisk-Full and Boot Recovery Guide. A bootable system with confirmed filesystem health, enough free bytes and inodes for normal operation, the true space consumer identified, essential data preserved, and a prevention/rollback record.$0.01 Solana116 ms1 payers100% up
  10. 97saylorinnovations.com/api/kb/linux-permissionsLinux Permissions Resolver. The intended user or service can perform exactly the required operation on the required path, while unrelated users remain blocked, with ownership/mode/ACL/mount/confinement evidence and a narrow reversible change.$0.01 Solana109 ms1 payers100% up
  11. 97saylorinnovations.com/api/kb/node-npm-bun-repairNode, npm and Bun Repair Guide. A reproducible JavaScript runtime environment using the project-declared runtime/package manager and lockfile, passing install/build/test/start without global-package or cache guesswork.$0.01 Solana112 ms1 payers100% up
  12. 97saylorinnovations.com/api/kb/python-environment-repairPython Environment Repair Guide. A project-local Python environment tied to the intended interpreter, installed reproducibly from declared dependencies, passing import and application tests without altering Ubuntu's system Python.$0.01 Solana121 ms1 payers100% up
  13. 97saylorinnovations.com/api/kb/port-firewall-reverse-proxyPort, Firewall and Reverse-Proxy Guide. A verified request path from external client through provider and host firewalls, TLS proxy, and the intended local application listener, exposing only required ports and preserving correct client/scheme headers.$0.01 Solana112 ms1 payers100% up
  14. 97saylorinnovations.com/api/kb/docker-container-failureDocker Container Failure Resolver. A reproducible container build and run whose image, command, environment, mounts, user, network, health, and persistent data are understood, with the failure isolated without deleting valuable volumes.$0.01 Solana114 ms1 payers100% up
  15. 97saylorinnovations.com/api/kb/systemd-failuresystemd Failure Resolver. A systemd unit that starts reliably under its real service identity and environment, passes application readiness, obeys dependency/restart limits, and has a documented failure cause and rollback.$0.01 Solana105 ms1 payers100% up
  16. 97saylorinnovations.com/api/kb/cuda-driver-ollamaCUDA, Driver and Ollama Compatibility Guide. A versioned local-AI compatibility plan showing GPU support, driver/runtime path, Ollama execution backend, model memory fit, context/concurrency limits, and a measured proof that inference uses the intended hardware.$0.01 Solana120 ms1 payers100% up
  17. 97saylorinnovations.com/api/kb/nvidia-no-signalNVIDIA No-Signal Recovery Guide. A restored graphical display using the correct cable/input, detected GPU, bound kernel module, compatible NVIDIA package/kernel combination, and working display manager, with a preserved text-console and known-good kernel rollback path.$0.01 Solana114 ms1 payers100% up
  18. 97saylorinnovations.com/api/kb/apt-dpkg-repairAPT and dpkg Repair Guide. A healthy package state in which dpkg has no interrupted configuration, APT resolves one coherent repository set, the requested package installs or removes cleanly, and the exact repair is documented without deleting the package database.$0.01 Solana112 ms1 payers100% up
  19. 97saylorinnovations.com/api/kb/solana-transaction-failureSolana Transaction Failure Resolver. A transaction incident record that identifies the first failing instruction and its evidence, separates wallet/RPC/quote/account/program causes, proposes the smallest safe correction, and verifies the intended on-chain result without exposing wallet secrets.$0.01 Solana129 ms1 payers100% up
  20. 97saylorinnovations.com/api/kb/data-cleanup-schema-mapperData Cleanup and Schema Mapper. A validated target dataset plus mapping specification, reject file, quality report, provenance record, and repeatable transformation that never invents missing values or silently drops rows.$0.01 Solana118 ms1 payers100% up
  21. 97saylorinnovations.com/api/kb/research-evidence-verifierResearch Evidence Verifier. A claim ledger that states what is supported, contradicted, uncertain, or inferred; links each conclusion to current primary evidence; records dates and scope; and gives a reproducible method for updating the answer.$0.01 Solana117 ms1 payers100% up
  22. 97saylorinnovations.com/api/kb/agent-tool-securityAgent Tool Security Preflight. A go/no-go security decision for an agent tool, backed by a mapped authority boundary, tested abuse cases, least-privilege credentials, confirmation and spend limits, safe output handling, and an emergency disable path.$0.01 Solana115 ms1 payers100% up
  23. 97saylorinnovations.com/api/kb/productized-service-scopeProductized Service Scope and Pricing. A procedure for productizing bespoke technical services: choose one painful, frequent result to standardize; define required client inputs and a readiness checklist; write deliverables as objective pass/fail acceptance tests, not activity lists; declare exclusions, revision limits, and a written change-order path; price full delivery risk including rework and support; build reusable delivery templates; then pilot with a small cohort and revise the offer…$0.01 Solana114 ms1 payers100% up
  24. 97saylorinnovations.com/api/kb/saas-unit-economicsSaaS Pricing and Unit Economics. A structured procedure for pricing a SaaS/API/x402 product: define the paid outcome and customer segment, choose a measurable billable unit, build full cost-to-serve (provider/compute/storage/payment fees/support/refunds), model usage distribution with p50/p90/p99 limits, set packaging and overage rules, run sensitivity/cash-flow scenarios, then pilot and revise from observed conversion, churn, and cohort margin.$0.01 Solana119 ms1 payers100% up
  25. 97saylorinnovations.com/api/kb/retrieval-evaluationEmbedding and Retrieval Evaluation. A retrieval-benchmark procedure for RAG/semantic-search/agent-memory systems: build a judged query set covering hard negatives and no-answer cases, snapshot the whole retrieval stack for reproducibility, trace every stage, measure task-specific metrics (not one aggregate score), and canary in production with automatic rollback.$0.01 Solana118 ms1 payers100% up
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  27. 97saylorinnovations.com/api/kb/source-ingestion-provenanceSource Ingestion and Provenance Pipeline. A pipeline design for ingesting external data (search, RAG, paid agent responses) that preserves provenance: source authorization/license, immutable fetch evidence with checksums, deterministic parsing/normalization, quality and drift gates, and propagated correction/deletion across indexes and caches.$0.01 Solana118 ms1 payers100% up
  28. 97saylorinnovations.com/api/kb/chain-address-network-validatorChain, Address and Network Validator. A procedure for preventing wrong-network or wrong-asset crypto transfers: reading the recipient's exact official deposit instructions instead of inferring the network from address format, resolving the source asset's precise contract/mint (not just its symbol), validating destination address type and support, cross-comparing sender and receiver network/chain ID end to end, sending a small test amount and confirming actual platform credit before sending the…$0.01 Solana111 ms1 payers100% up
  29. 97saylorinnovations.com/api/kb/staking-restaking-riskStaking and Restaking Risk Comparator. A procedure for comparing staking and restaking choices on their real risk-adjusted, after-fee return: defining the exact alternatives and time horizon being compared, tracing each reward's actual source (network issuance vs. incentives vs. unpriced points), calculating net token yield after commissions/fees/withdrawal delay, mapping the failure paths each additional wrapper layer adds, running price and depeg scenarios separately from token-denominated…$0.01 Solana116 ms1 payers100% up
  30. 97saylorinnovations.com/api/kb/trading-bot-profitabilityTrading-Bot Profitability Auditor. A procedure for auditing whether a trading bot is genuinely profitable: defining an accounting boundary that separates deposits/withdrawals from trading PnL, reconstructing every round trip from confirmed exchange/chain records (not bot logs), computing robust metrics (expectancy, profit factor, tails, drawdown, concentration) instead of headline win rate, auditing backtests for look-ahead and selection bias, comparing predicted vs.$0.02 Solana113 ms1 payers100% up
  31. 97saylorinnovations.com/api/kb/solana-rpc-websocketSolana RPC and WebSocket Resilience Guide. A procedure for building resilient Solana wallet/token/program monitoring: defining precise event and commitment semantics up front, persisting durable checkpoints (not memory-only cursors), reconnecting with bounded exponential backoff, backfilling missed history via signature/account RPC methods after every disconnect, deduplicating by a stable event key, correctly promoting or retracting provisional events as commitment increases, and failing over…$0.01 Solana122 ms1 payers100% up
  32. 97saylorinnovations.com/api/kb/meteora-orca-lp-exitMeteora and Orca LP Exit Resolver. A procedure for resolving a failed Meteora/Orca LP withdrawal, harvest, close, or zap-out: verifying position ownership and protocol identity, inventorying liquidity/fees/rewards/lock state and range/bin composition, reading the first failing instruction from simulation logs rather than the generic wallet error, using the official manual harvest-then-withdraw-then-close sequence instead of a risky bundled zap, and reconciling token/SOL/rent balances before…$0.02 Solana116 ms1 payers100% up
  33. 97saylorinnovations.com/api/kb/dex-fee-slippage-breakevenDEX Fee, Slippage and Break-Even Guide. A procedure for calculating the true break-even price move on a DEX trade: defining consistent cash-flow units, modeling entry execution (route, fees, price impact, slippage, failed attempts) separately from a size-dependent exit ladder, solving for the exact break-even percentage that covers both legs, setting execution guardrails, and reconciling the realized wallet result against the model — because chart price movement alone doesn't account for…$0.01 Solana106 ms1 payers100% up
  34. 97saylorinnovations.com/api/kb/nft-authenticity-spamNFT Authenticity and Spam Triage. A no-signature triage procedure for an unexpected NFT: recording the asset without clicking any link or signing anything, verifying on-chain collection/creator/update-authority identity against official sources (never against the NFT's own metadata), inspecting off-chain metadata URIs in isolation, and classifying the asset as verified authentic, likely spam/phishing, unverified, or program-specific before choosing a safe hide/burn/ignore action.$0.01 Solana123 ms1 payers100% up
  35. 97saylorinnovations.com/api/kb/drained-wallet-incidentDrained-Wallet Incident Guide. An incident-response procedure for a suspected Solana wallet compromise: stopping interaction and preserving evidence before it's lost, distinguishing key/seed compromise from a single malicious approval, creating a verifiably clean new wallet on a clean device, inventorying and safely moving remaining assets with minimum signing, rotating related accounts, and permanently retiring the compromised address rather than reusing it once "quiet."$0.02 Solana111 ms1 payers100% up
  36. 97saylorinnovations.com/api/kb/token-holder-rug-riskToken Holder and Rug-Risk Analyzer. A procedure for producing a time-stamped token-risk report: classifying holder accounts (excluding pools/vaults/burn/vesting from raw wallet counts), measuring concentration and linked-wallet clusters with evidence and confidence rather than assertion, verifying liquidity custody and lock mechanisms on-chain (not by marketing claim), decoding authorities/extensions/trading restrictions, and issuing a scorecard that exposes reasons and data gaps instead of a…$0.02 Solana110 ms1 payers100% up
  37. 97saylorinnovations.com/api/kb/solana-token-authoritySolana Token Authority Decoder. A procedure for producing a mint-specific Solana token authority report: resolving the exact mint and program (SPL Token vs Token-2022), decoding mint/freeze authorities, enumerating Token-2022 extensions (transfer hooks, permanent delegate, default account state, close authority), separating metadata/update authority from supply economics, and analyzing controller addresses (multisig/PDA/program) — without inferring safety from any single revoked authority.$0.02 Solana126 ms1 payers100% up
  38. 97saylorinnovations.com/api/kb/local-private-aiLocal Private-AI Deployment Guide. A procedure for sizing and securing a local Ubuntu AI deployment: mapping the real privacy/data-flow boundary first (local inference doesn't make retrieval, plugins, telemetry, or backups local), inventorying actual usable VRAM/RAM with a safety reserve before picking a model, installing as a versioned pinned service rather than an ad hoc shell launch, benchmarking on representative tasks (not just tokens/sec), binding interfaces to loopback with…$0.01 Solana118 ms1 payers100% up
  39. 97saylorinnovations.com/api/kb/agent-evaluation-testsAgent Evaluation-Test Generator. A procedure for turning an agent specification into a real evaluation suite: translating vague requirements into observable, gradable claims (correct tool/arguments/outcome/refusal/budget), partitioning the case space into normal/boundary/adversarial/permission/cost cases, building safe sandboxed fixtures so evaluation can't cause real side effects, preferring deterministic state/tool-trace graders over LLM-judge-only scoring, running baseline vs candidate with…$0.01 Solana121 ms1 payers100% up
  40. 97saylorinnovations.com/api/kb/agent-observabilityAgent Observability Guide. A procedure for building privacy-bounded agent telemetry: defining the actual incident/SLO questions before collecting anything, designing a run/state/event schema with stable correlation IDs across retries, allowlisting safe fields instead of capturing-then-scrubbing, joining model and tool events to a separately verified business outcome (not just model completion text), building alerts on tested deviations, and injecting canary secrets to prove the pipeline…$0.01 Solana121 ms1 payers100% up
  41. 97saylorinnovations.com/api/kb/agent-secret-handlingAgent Secret-Handling Guide. A procedure for keeping API keys, wallet keys, tokens, and cookies out of an agent's prompts, repos, logs, and tool outputs: inventorying and classifying secrets by owner/scope/expiry, routing agents through a broker that issues short-lived scoped capabilities instead of raw credentials, constraining scope and lifetime, redacting before serialization (not after), scanning repos/CI/runtime with canary tests, and exercising a full revoke-and-rotate incident drill…$0.01 Solana110 ms1 payers100% up
  42. 97saylorinnovations.com/api/kb/prompt-injection-defensePrompt-Injection Defense Guide. A procedure for designing agent workflows that resist prompt injection: mapping which tools/credentials/side effects an untrusted content source can reach, minimizing and labeling retrieved content by trust/provenance, externalizing policy and authorization into deterministic code rather than the model, using a propose-review-execute pattern for high-impact actions, constraining what untrusted content can write to memory, and running adversarial evaluation…$0.01 Solana116 ms1 payers100% up
  43. 97saylorinnovations.com/api/kb/agent-wallet-spend-policyAgent Wallet Spend-Policy Guide. A procedure for bounding what an autonomous agent's wallet can actually do: segregating a dedicated low-balance signer wallet, expressing hard allowlist/cap policy outside the model (network, asset, recipient, per-call and rolling limits), decoding and simulating every transaction against that policy before signing, requiring exact bound approval for high-impact exceptions, and reconciling signature-to-fulfillment.$0.01 Solana110 ms1 payers100% up
  44. 97saylorinnovations.com/api/kb/agent-retry-idempotencyAgent Retry and Idempotency Guide. A procedure for preventing duplicate side effects (payments, messages, orders, files) when agents retry after timeouts: defining a stable logical-operation key scope bound to a canonical payload hash, building a durable state machine (not a boolean flag), placing the side effect inside an atomic boundary, classifying retryable vs terminal errors, and handling same-key/different-payload conflicts explicitly rather than silently.$0.01 Solana116 ms1 payers100% up
  45. 97saylorinnovations.com/api/kb/structured-output-repairStructured-Output Repair Guide. A deterministic pipeline for validating and repairing structured model output: capturing raw response metadata before any repair, distinguishing truncation from real syntax errors, validating against a pinned JSON Schema, checking semantic invariants a schema can't catch (totals, dates, references), running bounded repair attempts that never invent facts, and regression-testing known failure classes before release.$0.01 Solana112 ms1 payers100% up
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  68. 97saylorinnovations.com/api/kb/troubleshooting-cname-recordsTroubleshooting CNAME Records. How to verify and debug a CNAME record: looking it up with nslookup or dig/MXToolbox, and resolving the common failures — unpropagated changes, mistyped Label/Target values, trailing-dot errors, and the A-vs-CNAME conflict on the same hostname.$0.01 Solana111 ms1 payers100% up
  69. 97saylorinnovations.com/api/kb/setting-up-the-naked-domain-for-your-google-siteSetting Up the Naked Domain for Your Google Site. Step-by-step setup of a naked (bare) domain redirect for a Google Site: configuring the redirect in the Google Admin console, adding A records at your registrar that point to Google's IPs, and the constraints (only primary domains can be redirect targets; up to 48h propagation).$0.01 Solana116 ms1 payers100% up
  70. 97saylorinnovations.com/api/kb/mapping-a-new-url-in-google-sitesMapping a New URL in Google Sites. How an admin maps a custom URL to a new Google Site: the requirements (new Sites only, public sharing, subdomain-to-primary-domain rule, 2,000-address limit), the Admin console steps, and CNAME verification — with auto-provisioned domain-validated SSL.$0.01 Solana109 ms1 payers100% up
  71. 97saylorinnovations.com/api/kb/customizing-your-google-workspace-web-addressCustomizing Your Google Workspace Web Address. How to create short branded addresses for Google Workspace services: setting a CNAME so Gmail lives at mail.example.com, mapping a custom domain to a Google Site, and enabling the naked (bare) domain via A records and an Admin console redirect.$0.01 Solana108 ms1 payers100% up
  72. 97saylorinnovations.com/api/kb/cname-domain-parking-dns-resource-recordsCNAME Domain Parking & DNS Resource Records. An explainer of DNS resource records: the four fields (host, type, TTL, data) every record uses, what the A, AAAA, CNAME, and MX record types do, and how multiple MX records with priority values provide email failover — including the trailing-dot FQDN gotcha.$0.01 Solana107 ms1 payers100% up
  73. 97saylorinnovations.com/api/kb/google-dorking-search-shortcuts-referenceGoogle Dorking Search Shortcuts Reference. A reference for Google dorking / advanced search operators used in OSINT and security auditing: core operators (site, filetype/ext, inurl, intitle, intext, cache, related, link), combination operators (allinurl, allintitle, AROUND, exclusion, date ranges), and practical queries for finding exposed files.$0.01 Solana106 ms1 payers100% up
  74. 97saylorinnovations.com/api/kb/how-flash-loans-smart-contracts-can-be-profitableHow Flash Loans & Smart Contracts Can Be Profitable. Legitimate profit mechanisms in DeFi: how flash loans provide uncollateralized capital that must be borrowed and repaid within one block (reverting otherwise), with uses in DEX arbitrage, collateral swaps, and liquidations; plus lending, liquidity provision, and yield farming — framed with a risk disclaimer.$0.01 Solana110 ms1 payers100% up
  75. 97saylorinnovations.com/api/kb/setting-up-chia-farming-with-a-raspberry-piSetting Up Chia Farming with a Raspberry Pi. How to run a Chia farmer on a Raspberry Pi 4: why Chia's Proof of Space and Time lets a low-power Pi farm (while plotting stays on a stronger machine), installing the software, creating a wallet, optimizing the Pi, pointing the farmer at plot directories, and monitoring with 'chia farm summary'.$0.01 Solana109 ms1 payers100% up
  76. 97saylorinnovations.com/api/kb/repurposing-an-old-gpu-for-crypto-miningRepurposing an Old GPU for Crypto Mining. Getting an old GPU mining: checking profitability against electricity cost on whattomine.com, updating drivers, choosing NVIDIA mining software (T-Rex, GMiner, NBMiner), creating a wallet and joining a pool, configuring the miner, and undervolt/overclock tuning while keeping the GPU under 85°C.$0.01 Solana102 ms1 payers100% up
  77. 97saylorinnovations.com/api/kb/installing-the-duino-coin-repo-on-linux-desktopInstalling the Duino-Coin Repo on Linux Desktop. Setting up Duino-Coin mining on a Linux desktop: installing Python and image-library dependencies via apt, cloning the official revoxhere/duino-coin repo, installing its Python requirements, and where to configure a wallet — with notes on CPU, AVR/Arduino, and ESP8266/ESP32 mining.$0.01 Solana114 ms1 payers100% up
  78. 97saylorinnovations.com/api/perps/fundingCross-Exchange Perp Funding (Hyperliquid, Binance, Bybit). Perp funding rates compared across exchanges: every Hyperliquid perpetual with Hyperliquid, Binance and Bybit funding rates normalized to annualized %, sorted by the biggest spread between venues, with the funding-rate arbitrage direction (which venue to short / long) and crowded-positioning flags. Filter by open interest.$0.002 Solana155 ms1 payers100% up
  79. 97x402-stock-indicators.vercel.app/yield-curveUS Treasury yield curve in one call: 1mo/3mo/6mo/1yr/2yr/5yr/10yr/30yr yields, the 10y-2y and 10y-3mo spreads, and a boolean inversion flag on each -- a classic recession/risk-off signal every macro trader watches. Live from FRED's daily constant-maturity Treasury series. Not ticker-specific. $0.01/call.$0.01 Base294 ms1 payers100% up
  80. 97x402-stock-indicators.vercel.app/market-risk-sentimentMarket risk sentiment in one call, live from FRED: volatility index (VIX), high-yield and investment-grade credit spreads, financial conditions index, US dollar strength, and WTI crude oil price — the 6 metrics that flag systemic risk and market-wide stress. Replaces 6 separate FRED lookups for traders monitoring macro volatility and risk-off sentiment. Not ticker-specific. $0.01/call.$0.01 Base279 ms1 payers100% up
  81. 97x402-stock-indicators.vercel.app/jobless-claimsUS weekly jobless claims in one call, live from FRED: initial claims, continuing claims, and 4-week moving average of initial claims, with week-over-week change computed where available — a leading labor-market indicator that drives risk-off and day-trading directional calls. Replaces 3 separate FRED series lookups. Not ticker-specific. $0.01/call.$0.01 Base265 ms1 payers100% up
  82. 97atlas-probability-api-production.up.railway.app/v1/x402/probability/BTCAtlas Bitcoin/BTC 60-minute (1-hour) probabilistic market forecast$0.01 Base237 ms1 payers100% up
  83. 97api-macro-br-production.up.railway.app/v1/selicCurrent Selic target rate set by the Brazilian central bank.$0.005 Base254 ms1 payers100% up
  84. 97api-macro-br-production.up.railway.app/v1/focusFocus survey: median market forecasts for inflation, the Selic rate, the exchange rate and GDP growth, for the current and next calendar year.$0.05 Base244 ms1 payers100% up
  85. 97api.agentstools.dev/treasury/statementThe US Monthly Treasury Statement: federal receipts, outlays and the deficit or surplus for the latest month and fiscal year to date, fused with interest expense. Computes the deficit change year over year and interest expense as a share of receipts. Cited to Treasury Fiscal Data.$0.02 Base167 ms1 payers100% up
  86. 97www.x402financialdata.com/stablecoinsTop USD-pegged stablecoins by circulating market cap, live from DeFiLlama: current peg price with deviation from $1 (a live depeg monitor), plus 1d/7d % change in circulating supply. Not ticker-specific -- a market-wide screener. Supports optional limit (default 10, max 25). $0.01/call.$0.01 Base176 ms1 payers100% up
  87. 97api.strale.io/x402/email-validateValidate an email address: RFC 5322 syntax, MX records, 5,361 disposable domain detection, role-based address detection (35 patterns), free provider detection, and typo suggestion for common providers (gmial.com ? gmail.com). Returns deliverability assess…$0.0324 Base135 ms1 payers100% up
  88. 97chain.openverbs.com/v1/txLive status and details of a transaction by hash: success/failed/pending, from/to, value (wei + ether), nonce, block number, gas used, effective gas price and any created contract address. Returns `found:false` for unknown hashes. Reads live on-chain data with automatic endpoint fallback.$0.003 Base56 ms1 payers100% up
  89. 97chain.openverbs.com/v1/gasLive gas conditions for an EVM chain: current gas price, the latest block's base fee (EIP-1559) and the suggested max priority fee — all in both wei and gwei. Ground truth an agent can't compute. Reads live on-chain data with automatic endpoint fallback.$0.002 Base54 ms1 payers100% up
  90. 97api.itsgloria.ai/recapsGet a recap of the news or summary of a covered news topic over the past 12-24 hours.$0.10 Base91 ms1 payers100% up
  91. 97chain.openverbs.com/v1/btc-txLook up a Bitcoin transaction by txid: confirmation status, block height and time, fee (sats), effective fee rate (sat/vB), size, weight and virtual size, input and output counts, and total output value (sats and BTC). On-chain ground truth for verifying a payment.$0.006 Base43 ms1 payers100% up
  92. 97chain.openverbs.com/v1/btc-addressBalance and activity for a Bitcoin address (base58 1…/3… or bech32 bc1…): confirmed balance (sats and BTC), total received and sent, confirmed transaction count, and unconfirmed/pending value and tx count from the mempool. On-chain ground truth an agent cannot compute locally.$0.006 Base43 ms1 payers100% up
  93. 97chain.openverbs.com/v1/btc-mempoolLive snapshot of the Bitcoin mempool: number of unconfirmed transactions, total pending virtual size (bytes and MB), the current backlog in blocks, total fees pending (sats and BTC), the fee-rate histogram, and the current chain tip height. Lets an agent gauge network congestion and time a transaction.$0.006 Base41 ms1 payers100% up
  94. 97chain.openverbs.com/v1/btc-feesLive recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1-hour, economy and minimum confirmation targets, straight from the mempool. Also estimates the total fee (in sats and BTC) for a transaction of the given virtual size, so an agent can pick a fee tier and know the cost before broadcasting.$0.006 Base51 ms1 payers100% up
  95. 97chain.openverbs.com/v1/explainDecode a transaction into plain language: native ETH transfer, contract call (with decoded method name for common ERC-20/DEX functions like transfer, approve, swap, mint, multicall) or contract creation; ERC-20 and NFT (ERC-721) transfers it triggered (token, from, to, amount/tokenId from logs); gas spent in ETH; success/failed/pending; and a one-line summary. Reads live on-chain data with automatic endpoint fallback.$0.006 Base66 ms1 payers100% up
  96. 97chain.openverbs.com/v1/ens-resolveResolve an ENS name (like alice.eth) to its Ethereum address, read live from the ENS resolver on Ethereum mainnet. Offchain names such as *.base.eth resolve too. Returns `found:false` (a real answer, not an error) when the name has no address record. Live reads with automatic endpoint fallback.$0.003 Base66 ms1 payers100% up
  97. 97chain.openverbs.com/v1/token-riskDeterministic risk screen of an ERC-20 token from on-chain bytecode and metadata, no third-party risk API. Flags privileged or abuse capabilities: blacklist/freeze, owner mint, pausable transfers, upgradeable proxy and a privileged owner, plus tokens missing symbol/decimals or code. Returns each flag with a severity, a 0-100 score and a verdict. Reads live on-chain data with automatic endpoint fallback.$0.006 Base62 ms1 payers100% up
  98. 97iposignal.xyz/api/agent/ipo/by-symbol/:symbolFull IPO company profile with AI research, valuation analysis, and deal terms$0.01 Base115 ms1 payers100% up
  99. 97verifier.quantumshieldlabs.dev/x402/preflightReturn an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts.$0.005 Base192 ms1 payers95% up
  100. 97touchstone.locomot.io/skyDeterministic ephemeris snapshot (one location/time). Free sample, no payment required: GET /play/sky$0.003 Base248 ms1 payers100% up