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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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4,273 results- Xx402-sec-edgar.microtools-x402.workers.devDeveloper tools
Resolve a ticker, CIK or company name to the SEC registrant: CIK (plain and 10-digit), official name, tickers, exchanges, SIC code + industry description, entity type, filer category, fiscal year end, state of incorporation, EIN, business address, phone, former names and latest filing, plus up to 9 other name matches. Data: SEC EDGAR public APIs (sec.gov, data.sec.gov), US public domain, no API ke
Basex402-sec-edgar.microtools-x402.workers.devfrom $0.0011 endpoint - Xx402-package-advisories.microtools-x402.workers.devOther services
Security advisories for one open-source package version (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist, Pub, Hex...). Returns a verdict (vulnerable yes/no, vuln count, max severity, max CVSS v3 score, counts by severity, recommended upgrade version re-checked against OSV, latest stable version and whether it is affected) plus every advisory: OSV/GHSA id, CVE aliases, summary, severit
Basex402-package-advisories.microtools-x402.workers.devfrom $0.0031 endpoint - Xx402-jp-loccheck.onrender.comOther services
Japanese postal code (郵便番号) to address: prefecture, city, town in kanji, kana and romaji, JIS code; batch up to 100
BaseSolanax402-jp-loccheck.onrender.comfrom $0.0011 endpoint - Xx402-dns-auth-checker.microtools-x402.workers.devDeveloper tools
Audit a domain's email authentication DNS: SPF (all qualifier, includes, ~DNS lookups vs 10 limit), DMARC (p, sp, pct, rua/ruf, alignment), DKIM (common or given selectors, key type/length), MX, BIMI, MTA-STS, TLS-RPT. Returns per-check status, issues, recommendations, score 0-100 and grade A-F. Costs $0.003 USDC per call via x402.
Basex402-dns-auth-checker.microtools-x402.workers.devfrom $0.0032 endpoints - SSolana HealthSocial & people
Gas cost oracle: current gas price and the live USD cost of a transfer, a swap, and an ERC-20 approval on Base.
Basework-1-nrumcuplsrigglax.prod-runtime.all-hands.devfrom Free13 endpoints - Wweb-production-3cfc1.up.railway.appDeveloper tools
Pay for a click-and-collect order. The pickup QR is emailed to the customer once the payment settles.
Baseweb-production-3cfc1.up.railway.appfrom $0.501 endpoint - Vvellum.totemworks.workers.devSearch & web
Search ClinicalTrials.gov and return a short study list.
Basevellum.totemworks.workers.devfrom $0.012 endpoints - Uutil-x402.restockalarm.workers.devOther services
Random UUID v4
BasePolygonutil-x402.restockalarm.workers.devfrom $0.0053 endpoints
UmbraCrypto & DeFiPrivate LLM inference, Anthropic-compatible. Sealed open models in TDX + GPU enclaves or Claude; streaming and tool calling; signed Ed25519 receipt naming the attested enclaves; zero retention. Pay per request in USDG, USDC (Base, Solana) or UMBRA.
Baseumbra-inference.appfrom $0.000421 endpoint- Ttools.orchardshop.xyzSearch & web
Fetches a public web page and returns its readable text as JSON: url, status, title, char count, and clean text with scripts, styles and tags stripped. Blocks private/localhost addresses.
Basetools.orchardshop.xyzfrom $0.015 endpoints - AAgent ToolsSearch & web
Fetch a public web page and return clean Markdown for LLMs: title, description, canonical URL, language, word count, body as Markdown (headings, lists, links, tables, code) and the list of absolute links. Uses the page main/article element when present; scripts, styles and (by default) nav/footer/sidebars are stripped. No headless browser, so JavaScript-only pages return little text (flagged with
Basetools.landingen24h.comfrom $0.0011 endpoint - Ttokenomics-x402.gtcclothing1.workers.devCrypto & DeFi
Token risk verdict engine: A-F tokenomics score for one covered token from its dated token unlock schedule — unlock cliff analysis (next release date, size vs float, largest release in 90 days), sell pressure estimate, published grading rubric, and a signed, hash-chained receipt on every paid response. Keywords: token risk, token unlock, tokenomics score, unlock cliff, sell pressure. Bundle: GET /
Basetokenomics-x402.gtcclothing1.workers.devfrom $0.012 endpoints - Ttojko-121-98-63-109.run.pinggy-free.linkOther services
OSV.dev vulnerability query: one package+version
Basetojko-121-98-63-109.run.pinggy-free.linkfrom $0.021 endpoint
FxCrypto & DeFiPaid HTTP redirect chain + final URL via x402
Basetfgmq-38-190-144-122.run.pinggy-free.linkfrom Free610 endpoints- Ttcg-feed-x402.restockalarm.workers.devSearch & web
JSON feed of embedded TCG restock watchlist signals (no live scraping)
BasePolygontcg-feed-x402.restockalarm.workers.devfrom $0.021 endpoint - SSynap CreditsCrypto & DeFi
Synap credits — fund an inference wallet with USDC on any network offered in the payment challenge. $1–$1000 per top-up; $0.2273/M credits.
Basesynap.linkrra.comfrom $1.001 endpoint - Ssvg.gowander.spaceImages, audio & video
Vectorize a raster image (PNG/JPEG/WebP) into a clean, editable SVG (color or black-and-white).
Basesvg.gowander.spacefrom $0.101 endpoint - Ssol-defi-deskCrypto & DeFi
Solana rug-pull check before you buy a token: mint authority, freeze authority, risky Token-2022 extensions, mutable metadata, top-holder concentration, and a low/medium/high risk level, from direct on-chain reads. Same check and price as /v1/token-check (descriptive alias path). For pump.fun tokens it also reads the bonding curve: SOL in the curve, percent sold, and whether it graduated to a DEX.
SolanaBasestatic.169.126.216.95.clients.your-server.defrom $0.0054 endpoints - Ssouthpow.mediaDeveloper tools
ABT/USD live: last price, 24h open/high/low, % change, 24h and 30d volume (Coinbase Exchange, Kraken cross-check). $0.002 USDC on Base. No account, no API key. Failed calls not charged.
BaseSolanasouthpow.mediafrom $0.0029 endpoints - SSignalLayerAI & agents
Agent-friendly GET preflight. Use before paying an unfamiliar machine resource. Query parameter: target.
Basesignallayer.floot.appfrom $0.011 endpoint - Sserp-lite.restockalarm.workers.devSearch & web
Autocomplete-style related queries for q (DuckDuckGo AC or heuristic; ~5 min cache)
BasePolygonserp-lite.restockalarm.workers.devfrom $0.011 endpoint
FxMarkets & financePaid WHOIS / RDAP lookup via rdap.org
Baserznxk-38-190-144-122.free.pinggy.netfrom Free610 endpoints- RRyuMoon Data ToolsSearch & web
Web page to clean Markdown for LLMs and RAG. Fetches any public URL, strips nav, ads and cookie banners, returns main-content Markdown plus title, author, date and word count. Charged only on success.
Baseryumoon-x402-tools.ryumoon.workers.devfrom $0.0016 endpoints - Rrelay.imagiolabs.comOther services
MEV/sandwich detection on a tx. Query: ?tx=
Baserelay.imagiolabs.comfrom $0.001566 endpoints - Ingravity EVM Security APICrypto & DeFi
Deterministic 24-Vector Solidity Audit & Line-by-Line Fixes ($0.85 Floor + 0.15% TVL / $0.35 Signal)
Basered-shape-1b3b.daviddelmoral79.workers.devfrom Free7 endpoints
FxMarkets & financePaid keyword extraction via x402
Baseptfya-38-190-144-122.run.pinggy-free.linkfrom Free610 endpoints- Pprice-snap.restockalarm.workers.devCrypto & DeFi
Spot crypto prices for comma-separated symbols (DefiLlama, ~60s cache)
BasePolygonprice-snap.restockalarm.workers.devfrom $0.011 endpoint
FxMarkets & financePaid DNS record lookup (A/AAAA/MX/NS/TXT/CNAME) via Cloudflare DoH
Baseotzik-38-190-144-122.run.pinggy-free.linkfrom Free610 endpoints
NFT DataCrypto & DeFiNFT Data — get_collection_data (0.002 USDC). Returns structured NFT collection and market data for any OpenSea collection slug.
Basenftdata.appfrom $0.0021 endpoint- Nnervebane.restockalarm.workers.devOther services
Current air quality (US AQI, PM2.5, PM10). Returns us_aqi, pm2_5, pm10 as JSON. Pay per call via x402. $0.01 USDC per call via x402 on Base.
Basenervebane.restockalarm.workers.devfrom $0.0125 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.