Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
- Projects
- 4.4K
- Paid endpoints
- 87K
- Paid calls · 30 days
- 885K
- Launched here
- 0
All projects
4,150 results- AAgent MercantileCrypto & DeFi
Determine whether the bounded normalized representation of one public HTTPS webpage has changed since a caller-held baseline. Returns fingerprints and change status, not continuous monitoring, alerts, webhooks, semantic importance, AI summaries, or site-wide crawling.
Baseapi.agentmercantile.comfrom $0.00511 endpoints
TenjinAI & agentsTenjin's tool router. Send a turn's bounded conversation packet, or a one-line query, and get which pay-per-call x402 service fits the step, if any, with its spec to fill and pay yourself. Quotes $0.003 and charges $0.001 per answer from a completed routing gate; an answer made without one settles at $0. batch-settlement only. Agent guide: https://tenjin.sh/llms.txt
Basetenjin.shfrom $0.0032 endpoints- Aapi.printmoneylab.comCrypto & DeFi
Korean exchange prices (Upbit, Bithumb) for a single token in KRW
BasePolygonSolanaapi.printmoneylab.comfrom $0.0019 endpoints - OOnchainPulseCrypto & DeFi
Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership renounced, transfer-pausable, blacklist — the raw flags, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest token safety check before you trade; upgrade to /api/evmtoken ($0.015) for the fused CLEAR/CAUTION/AVOID verdic
BaseSolanaRobinhood Chain+9onchainpulse.theaslangroupllc.comfrom $0.00528 endpoints - GGrokzilla x402 Micro PayCrypto & DeFi
Estimate whether text (or a web page's text) is AI-written using a trained classifier: about 78% accurate on a held-out benchmark (not a guarantee). Uncertain results suggest a rerun on a longer section (300+ words); tell phrases are only a secondary 'possible AI influence' signal.
Basegrokzilla.shopfrom $0.00140 endpoints
CoinGeckoCrypto & DeFiSearch onchain DEX pools and token, by contract address, name, or token symbol.
BaseSolanaPolygonpro-api.coingecko.comfrom $0.00532 endpoints- MMart402Images, audio & video
Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected. No API key. $0.005 fast / $0.01 rendered; cached results half price (this 402 quotes the exact amount).
Basemart402.comfrom $0.00127 endpoints - Ssovereign-x402-zeta.vercel.appSearch & web
Scrape a URL and return clean Markdown (via Firecrawl). Priced above Firecrawl's own per-scrape cost.
Basesovereign-x402-zeta.vercel.appfrom $0.00130 endpoints - Hhcrb.inOther services
Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.
BasePolygonAvalanche+2hcrb.infrom $0.00546 endpoints
DeepAIImages, audio & videoApplies AI edits to an image guided by a text instruction. Pass the image as a URL and the edit as text. Choose the quality tier with image_generator_version: genius or super_genius for the highest detail at 2k output. The genius tier also takes an art style in genius_preference: classic, anime, photography, graphic, or cinematic. Returns a link to the edited image.
Basedeepai.pay.zeroclick.iofrom $0.0124 endpoints- Oopendata402Markets & finance
Official monthly inflation (HICP, annual rate of change, all items) for EU countries, the euro area and the EU from Eurostat. Give a country code (NL, DE, FR, EA20, EU27_2020) and the number of recent months. Use it for price indexation, wage or rent adjustment and economic context. Eurostat data, CC BY 4.0; values unchanged.
BasePolygonArbitrumopendata402.comfrom $0.00145 endpoints - Eedgar.openverbs.comMarkets & finance
Read a single XBRL financial concept for a company (by CIK or ticker) from its as-filed statements. Give the concept's XBRL tag (e.g. Revenues, NetIncomeLoss, Assets, EarningsPerShareDiluted) and optionally the taxonomy (default us-gaap, also dei). Returns the label and, per unit (USD, shares), recent datapoints with period end, value, fiscal year/period, form, filing date and accession. Bounded,
Baseedgar.openverbs.comfrom $0.0064 endpoints
PalmyrSocial & peoplePalmyr: POST /social/twitter/unfollow
SolanaBasepalmyr.aifrom $0.00124 endpoints- Mminia2a.ukDeveloper tools
Convert a byte count to a human-readable size (B/KB/MB/GB/TB/PB, 1024 steps, 2 decimals). Input: bytes.
Baseminia2a.ukfrom $0.00593 endpoints - Xx402 settlement checkCrypto & DeFi
x402 settlement check. Get proof a wallet can finish 402, sign, settle, and read the result on Base, plus an echo and a signed Ed25519 receipt. Check the receipt with the published key. $0.01 USDC. Optional ?echo= comes back in the body. Includes a signed Ed25519 receipt you can check with the published key.
Baseaizamon.comfrom $0.00326 endpoints - Ffractalai.net.coCrypto & DeFi
Signed attestation of an Aave V3 position's liquidation risk right now: health factor, debt, collateral, risk tier and the observation time, read live from public RPCs by the FractalAI MIDAS scanner across 6 chains and signed with ML-DSA-65 (NIST FIPS 204). Publicly verifiable by receipt id at /api/midas/alerts/receipt/<id> and in-browser at /midas/proof — proof of "what was seen, when", not a liq
BasePolygonArbitrum+2fractalai.net.cofrom $0.00510 endpoints - MMN Rental License CheckAI & agents
Minneapolis rental license check — is this property licensed? Property due diligence agent for Minneapolis Minnesota (Hennepin) housing compliance open data. GET ?address= (street 1-120 chars) → compliance_verdict (licensed_clean|licensed_with_violations|unlicensed|condemned_or_boarded), rental license status/tier/units/expiration, violation cases, condemned/boarded. Live City JSON. Tenant screeni
Basex402-mcp.onrender.comfrom $0.0121 endpoints - Oo1.exchange via vAPICrypto & DeFi
Hosted by vAPI for o1.exchange: Get details for one tracked launch token.
Baseapi.vapinetwork.aifrom $0.0023 endpoints - WWallet Safety ChecksCrypto & DeFi
Is this address sanctioned? Screens a crypto address against the US Treasury OFAC SDN list's published digital currency addresses (ETH, USDC, USDT, XBT, SOL, TRX and others): the listed entity, programs and listing date on a match, or not found as of the list date. Adds whether it is a wallet (EOA) or contract on Base, Ethereum, Arbitrum, Optimism or Polygon, or a wallet or program-derived address
Baseonchaincheck.devfrom $0.00168 endpoints - WWorld Clock / TimezoneImages, audio & video
World clock API — exact current time for any IANA timezone with UTC offset and correct daylight-saving handling. Deterministic on-chain execution by the AmanChain node — live consensus state, real blocks, pools and balances. Pay per call via x402 (USDC on Base), no account, no API key. POST JSON {"serviceId":"aman-world-clock","request":"<input>"}.
Baseamanchain-relay.gitajhd.workers.devfrom $0.00518 endpoints - CChat completions APISocial & people
LLM inference API: OpenAI-compatible chat completions, send messages, get choices and usage. Cheap LLM inference for agents (Llama 3.1 8B), no key, no streaming.
Basegolf-evm-math.x402-evm-math.workers.devfrom $0.00127 endpoints - AAetherCrypto & DeFi
Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address
Baseaether-x402.vercel.appfrom $0.00122 endpoints - Hhandelsrechner_text_signalOther services
Freitext-Signal in ein strukturiertes Schema. Nur ausdrücklich gelieferte Richtung, Einstieg, Stop und Ziele; keine Ergänzung oder Signalerzeugung. Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung.
Basehandel.halowerk.comfrom $0.00251 endpoints - Xx402 PingSocial & people
Open jobs at a company, from its own applicant tracking system's public job board: Greenhouse, Lever, Ashby, Workable, SmartRecruiters, Recruitee, BambooHR, Personio, Teamtailor, or Workday from a careers URL. Give a company name, website or job-board URL, with optional title, location and remote filters. Returns the newest 50 matching jobs with title, department, location, remote flag, salary whe
Baseca-tax-api-mainnet.lxtap.workers.devfrom $0.00168 endpoints
ApifySocial & peopleApify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called Actors, to extract structured data from social media, e-commerce sites, search engines, maps, travel sites, or any other website. Turn the open web into a real-time data source for your research, lead generation, and monitoring.
BaseSolanaagi.apify.comfrom $1.001 endpoint
Nero Labs Agent ToolsImages, audio & videoFetches one public web page and returns its main article text, cleaned of menus, ads and footers (Mozilla Readability), plus title, author, publish and update dates, site name, language, image and canonical URL from the publisher's own data. Honours robots.txt. Use it to read a link before summarising or quoting it. Charged only when text comes back; blocked, missing or non-HTML pages are free.
Basex402-agent-tools.nerolabs.workers.devfrom $0.00141 endpoints
Onchain Query APICrypto & DeFiENS name resolution in both directions on Ethereum mainnet. Pass name to resolve an ENS name to its address (forward), or pass address to get that address's primary ENS name (reverse, forward-verified so spoofed reverse records are rejected). Read straight from the ENS registry. Use it to turn vitalik.eth into an address, or to label a raw address with a human-readable name.
Basechain.cyberwarex.comfrom $0.00113 endpoints
AMNTImages, audio & videoBitcoin price - Get the current Bitcoin spot price in any fiat currency using CoinGecko’s free public API; returns the raw JSON price object.
BaseSolanahederaamnt.iofrom $0.0017 endpoints
DataStore APIAI & agentsStore JSON or a file (up to 25 MB) privately for 7 days and hand it to a human or another agent with a signed link or a password-protected address. Includes 100 reads. No account needed: pay $0.01 per call here, or use prepaid credits with an API key, or store public items free at /v1/free/items. Docs: https://fileshareforagents.online/llms.txt
Basefileshareforagents.onlinefrom $0.011 endpoint- Xx402.swaphunt.devCrypto & DeFi
Current Crypto Fear & Greed Index (0-100) with its label (Extreme Fear → Extreme Greed), updated daily. A single market-mood gauge for risk-on/risk-off context. For trend over time use /fear-greed/compare or /fear-greed/history.
BasePolygonArbitrum+1x402.swaphunt.devfrom $0.00118 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.