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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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621 results- Iip402.xyzData & research
Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.
BasePolygonArbitrum+2ip402.xyzfrom $0.011 endpoint
BytemineSocial & peopleRead any company page in real time and return clean structured content, links, metadata, and the detected tech stack. Data is fetched live from the source.
Baseagents.bytemine.aifrom $0.0150 endpoints
x402 Video IntelligenceImages, audio & videoYouTube video transcript extraction with per-segment timing. Returns the caption track as timed segments (start, duration, text) plus the full plain text, or as SRT subtitles. Uses the creator's manual captions when they exist and falls back to YouTube automatic captions. Never downloads media, so it stays fast and light. Cached per video and language. Use it to summarize a talk, quote a video wit
Basevideo.cyberwarex.comfrom $0.0012 endpoints
U2ACrypto & DeFiFind the right Web3 product for trading, perps, quests, or bridging using queries such as “perp DEX”, “bridge ETH to Base”, “Galxe quests” or “Banana Gun”. Get the best-matching product, supported networks, user perks, official site and a partner link. Referral links disclosed.
Baseu2a.com.aufrom $0.0017 endpoints- Aapi.tcgapi.devOther services
TCGPlayer current prices for every card in a set — useful for set value tracking and sealed Pokemon / Magic / Yu-Gi-Oh product pricing.
BaseSolanaapi.tcgapi.devfrom $0.0057 endpoints - CCrypto Data AgentCrypto & DeFi
Top DeFi yield pools with APY/TVL, filterable by chain (DefiLlama).
BaseSolanax402-crypto-data.vercel.appfrom $0.0022 endpoints - BBrazil Data APIMarkets & finance
Official USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil).
BaseSolanabrasil-dados-api.onrender.comfrom $0.0024 endpoints - Kkaisha-api.hp-vladic.workers.devOther services
Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.
BaseSolanakaisha-api.hp-vladic.workers.devfrom $0.0022 endpoints
FortiSwapCrypto & DeFiList every token FortiSwap routes on the X1 blockchain (XDEX + Degen launchpad): mint, symbol, name, decimals, logo, USD price, 24h volume, TVL, trust tier, liquidity, and the isSpam / isVerified / riskReasons safety flags. Call this first to resolve a symbol to a mint before quoting or building an X1 swap.
SolanaBaseapp.fortiblox.comfrom $0.0013 endpoints- Ccurrency-api-production-4a8d.up.railway.appCrypto & DeFi
Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko).
Basecurrency-api-production-4a8d.up.railway.appfrom $0.0013 endpoints
Tanod utilpeekImages, audio & videoutilpeek (Tanod) file upload: PDF, Office, image, audio, CSV, JSON or text stored for up to 24 hours and returned as a download link. Use when an agent holds a file and must give the next tool a URL for it: a link that expires within 24 hours.
SolanaBasePolygon+2tanod.devfrom $0.0005279 endpoints- KKertivo ShieldCrypto & DeFi
Address-poisoning check before you send USDC on Base. Body {from, to} (or sender/recipient; chain=base, token=USDC only, others 400 not charged; optional contacts/known_addresses): scans the sender's recent Base USDC transfers for lookalikes (same first/last 4 hex) plus dust/zero-value transfers. No sender? {recipient, known_addresses} = offline contacts check; {address} alone scans its own histor
Basepaycheck.hectichustle.workers.devfrom $0.0015 endpoints - Xx402 Base ToolsCrypto & DeFi
Current Base gas: base fee, priority fee percentiles over the last 10 blocks, the L1 data fee of a typical transaction, and what an ETH transfer, an ERC-20 transfer, a USDC transferWithAuthorization (an x402 payment), a swap and an NFT mint cost now in ETH and USD (ETH/USD from Chainlink).
Basebase.kagurazaka.devfrom $0.0019 endpoints
Agent Extraction APIImages, audio & videoAgent tools search: One search across ~13,000 agent tools: 4,259 MCP servers (awesome-mcp-servers, MIT) and ~8,900 x402 pay-per-call APIs (nohumans.directory, CC BY 4.0). Filters: q, type=mcp|x402, limit<=100.
Basefreetier-agent-api.pages.devfrom $0.00163 endpoints
Ozmium Agent APISocial & peopleLive prices from TWO labeled venues per symbol: Coinbase exchange spot (+ 24h stats) AND the gTrade venue leg { gains: { pairIndex, mark, index } } — mark is what fills on Gains, index is the oracle spot liquidations use. Same feeds the human chart runs on; the cross-venue spread between them is real, tradeable divergence (lead/lag arbitrage). Covers Gains-listed symbols Coinbase lacks (e.g. Full
Baseozmium.orgfrom $0.0018 endpoints- Xx402-seller-0ay3.onrender.comCrypto & DeFi
Top DeFi protocols ranked by TVL (total value locked), highest first, source DefiLlama. Optional parameter: ?limit=<n> (1 to 100, default 20).
Basex402-seller-0ay3.onrender.comfrom $0.00527 endpoints - Xx240.jvnclk88.workers.devCrypto & DeFi
URL preflight - status, redirect chain, key headers, response time, robots.txt rules for the path and sitemap location
BaseBase Sepoliax240.jvnclk88.workers.devfrom $0.00216 endpoints - OoffercheckImages, audio & video
Read any public web page as clean Markdown: main-content extraction (navigation, footers, scripts and hidden elements removed), headings, lists, tables, code blocks, links (absolute, deduplicated), images, plus title, description, canonical URL, language, author and publish date, and a content hash + fetch time as evidence. JSON and plain-text URLs are returned as-is. No JavaScript rendering. $0.0
Baseoffercheck.offercheck.workers.devfrom $0.0015 endpoints - Ppolls.karbach.digitalData & research
Latest federal polls (Sonntagsfrage), party names normalised. Use when asked about the newest federal polls by institute. Source-attributed. Refused (503, not charged) if data is older than 13 hours.
Baseapi.polls.karbach.digitalfrom $0.0146 endpoints - Ccompute-api-production-245d.up.railway.appCrypto & DeFi
Estimate token count
Basecompute-api-production-245d.up.railway.appfrom $0.00110 endpoints
AI Score paid scanAI & agentsPOST /api/scan — agent-readiness scan for a domain (~$0.01 USDC per call)
BaseBase Sepoliagetbags.appfrom $0.014 endpoints- AApiToll Crypto NewsCrypto & DeFi
Latest crypto news and breaking headlines, real-time from Cointelegraph. Search any topic (bitcoin, ethereum, DeFi, regulation, market sentiment) or pull the live feed, with full article text across 14 languages. Built for agents tracking crypto markets, tokens, and Web3.
BaseSolananews.apitoll.cloudfrom $0.0011 endpoint - WWikipedia Article SummaryImages, audio & video
Wikipedia article summary — plain-text and HTML extract, short description, thumbnail and Wikidata id for any title, in a clean normalized envelope with CC-BY-SA attribution.
BasePolygonArbitrum+1wiki.use.x402atlas.comfrom $0.0051 endpoint - Bbykaranteli.comSocial & people
Every $1M+ aggressive market print recorded live from our own trade sockets, with side, price, quantity and notional, recorded since 2026-08-13, filterable by symbol, exchange and time. The free endpoint serves the live tape (newest 100 prints, no filters); this route is the recorded archive behind it.
SolanaBasebykaranteli.comfrom $0.00218 endpoints - Ttoolvend.devOther services
VAT calculator for EU-27 + UK: net→gross or gross→net at standard or reduced rate. Includes rates table snapshot date.
SolanaBasetoolvend.devfrom $0.0026 endpoints - Ffinance-api.kdlcfa.workers.devMarkets & finance
US 30-Year Treasury Bond yield (%), delayed, via Yahoo Finance
Basefinance-api.kdlcfa.workers.devfrom $0.0119 endpoints - Aapi.aurenic.orgOther services
Total US public debt outstanding, to the penny, latest available
Baseapi.aurenic.orgfrom $0.00116 endpoints - loophole tapeCrypto & DeFi
New Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with their calibrated odds; for a one-off screen of the last hour use GET /v1/launches/recent, and for one mint the $0.005 rug check.
SolanaBaseRobinhood Chain+1api.loopholetape.comfrom $0.00127 endpoints - SStewardImages, audio & video
Use when an agent or user wants a clean original joke — family-friendly humor from the Synthetic Universe. Pure compute, no upstream. Optional session id avoids repeats. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.
BasePolygonArbitrum+1pay.brianbooms.comfrom $0.00531 endpoints - 1138-197-15-135.sslip.ioCrypto & DeFi
Block number, timestamp, hash, tx count, gas used/limit and base fee for the latest (or given) block on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM.
Base138-197-15-135.sslip.iofrom $0.00128 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.