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
965 results- Ddefi.hugen.tokyoCrypto & DeFi
List all blockchain networks supported by this API's security scanning — Ethereum, BSC, Polygon, Arbitrum, Base, Optimism, Avalanche, Fantom, Solana, and 20+ chains with chain IDs and names. Accepts USDC payments on Base and Solana
BaseSolanadefi.hugen.tokyofrom $0.0111 endpoints
Otto AICrypto & DeFiImportance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored market brief. Regenerated hourly; meta carries the snapshot's age and a fresh/stale verdict.
BaseSolanaEVM chain 5042+2api.aidress.aifrom $0.00114 endpoints- PPulseScannerCrypto & DeFi
Validators grouped by withdrawal address, or blocks grouped by the graffiti they carried. PulseChain (chain id 369). $0.003 USDC per call.
Basex402.pulsescanner.iofrom $0.00346 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- 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 - 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 - 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
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 - AAllTheBot Token price (USD)Social & people
Crypto token price in USD: live price of ETH, BTC (cbBTC), DAI, AERO or any Base token address, from on-chain DEX pools (Uniswap v3, Aerodrome), best route direct or via WETH. No API key, read-only.
Baseapi.zkrobotics.frfrom $0.00245 endpoints
Agent CouncilAI & agentsPut one question to a panel of 3 different AI models and get a single verdict back. Each model answers independently, then a chair synthesizes: verdict, confidence, the points they all agreed on, the dissent, and what would flip the answer. Use it for judgement calls where one model's opinion is not enough: is this safe, is this worth it, which option. No account, no API key, one USDC micropayment
Basecouncil.cyberwarex.comfrom $0.013 endpoints
CRYPTYXCrypto & DeFiService health probe — build version, last pipeline run, current signal/composite/asset counts. Sub-second, no DB writes. The cheapest end-to-end pay-per-call check before issuing real queries.
Basecryptyx.aifrom $0.00563 endpoints- Aagent.connskill.comSearch & web
Keyword suggestions for a seed keyword, with search volume and CPC
Baseagent.connskill.comfrom $0.00528 endpoints - VVerifyLiteImages, audio & video
Web page to markdown for AI agents: fetch one URL and get its main content as clean, LLM-ready markdown (navigation, ads, footers and scripts removed) with title, description, language, word count and a token estimate. Uses the site's own Markdown version when it offers one. Useful for RAG, summarizing articles, research and feeding pages to an LLM. Not charged if the page can't be fetched or isn'
BaseEVM chain 5042Polygonverifylite.hydratinghealingtouch.workers.devfrom $0.00138 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.