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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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4,372 results- Ggeo.halowerk.comOther services
Tests planar point containment with the even-odd rule. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Basegeo.halowerk.comfrom $0.00310 endpoints - Tteuerung.halowerk.comOther services
Food inflation dashboard with the headline category rate, movers and source-based context. Example: geo DE. Published periods and gaps stay visible. Official indices are not retail shelf prices.
Baseteuerung.halowerk.comfrom $0.00212 endpoints - Llookup_carrierSocial & people
Use this when you already have a carrier's USDOT number and need its current profile: safety rating, authority status, insurance flags, fleet size. Returns Active, Inactive, and Pending carriers alike. Billed only when the number resolves to a real carrier; an unknown number is free.
SolanaBasePolygonfmcsa-mcp-843680657471.us-central1.run.appfrom $0.0122 endpoints
cryptofeed402Crypto & DeFiPerpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. Failed calls are never charged. JSON.
Basecryptofeed402.sitefrom $0.00213 endpoints
api.liquidagent.aiImages, audio & videoSearch Mint & Marquee for gifts and collectibles: products that match what the person wants, under their budget, with price, photo, a short description and a link to buy. Custom 3D printed collectibles and gifts: figurines, statues, keychains, bag tags and branded merch. Soccer, anime, crypto, hypebeast and ancient-art collections.
BaseSolanaPolygon+1api.liquidagent.aifrom $0.00119 endpoints- AAestheticDataAI & agents
Curated aesthetic-medicine brand directory, partially verified. One call returns the full core catalog of filler, toxin, and thread brands: name, manufacturer, country, categories, certifications, treatment areas, and verification status. Some fields may be null.
Baseapi.aestheticdata.iofrom $0.0013 endpoints - CCueFrameImages, audio & video
Validate a composition body without saving it (dry-run)
Baseapi.cueframe.aifrom $0.0114 endpoints - GgigsaiCrypto & DeFi
Call when you need the readable content of a public web page: returns clean markdown (title, headings, lists, links; scripts and navigation removed), up to 100k characters. Pages that fail (404, blocked, timeout) are not charged.
Basegigsai.xyzfrom $0.0025 endpoints - AagosintSocial & people
Business registry lookup: company identity and legal entity enrichment as structured JSON, by registration number, name and country, VAT number, LEI or website. Registers of Czechia, Norway, the United Kingdom, France, Finland, US SEC filers and every LEI holder. Use when: you need the official identity of one company.
BasePolygonSolanaagosint.shveik.devfrom $0.017 endpoints - Aagent-utils-x402-production.revenue-agent-jw.workers.devCrypto & DeFi
OFAC sanctions screening for crypto wallet addresses: exact match against every digital currency address on the U.S. Treasury OFAC SDN list (BTC, ETH, USDT, USDC, TRX, SOL, LTC, XMR and more). Useful for compliance and AML checks before paying a counterparty or an x402 payTo. Up to 20 comma-separated addresses; returns sanctioned true/false, SDN name, programs, official link and list freshness. Er
Baseagent-utils-x402-production.revenue-agent-jw.workers.devfrom $0.0029 endpoints - CCombify ComputeImages, audio & video
Answer questions about an image or describe what it shows (Llama 3.2 11B vision), fixed price $0.008 USDC. Use this when the input is an image; use /chat for text-only questions. POST JSON body {image (required, base64 or data:image/... URI, max 4 MB decoded, PNG/JPEG/GIF/WEBP), prompt (optional question, defaults to describing the image), max_tokens (optional 1-512, default 256)}. Returns {text}.
Basecompute.combify.appfrom $0.0057 endpoints - CCode security scan: secrets, vulCrypto & DeFi
Security audit of a code snippet: static scan for hardcoded secrets (AWS, API and private keys, DB passwords), eval/exec, command injection, HTTP calls with no timeout, weak hashes (md5/sha1), bare except and unverified JWT. One entry per finding with rule, severity, exact line number and a suggested fix. Rule-based, no LLM: same snippet, same findings. Send Python or JavaScript as text. Use it as
Basefachada.chelsea-hermes.workers.devfrom $0.259 endpoints
blockint.aiCrypto & DeFiScreen one address (EVM, BTC, Tron, Solana, DOT, XRP, XLM, DOGE, LTC, DASH, STX, TON, Cosmos or wax:account) against the OFAC SDN list, Tether/Circle freezes (EVM, Tron, Solana) and C3 reports. Returns action BLOCK (OFAC SDN match), REVIEW (reported or frozen; current freeze = HIGH) or ALLOW_NO_REPORTS, riskScore, riskLevel, sanctions, freezes, reports, related domains, co-occurring addresses. NON
BaseSolanablockint.aifrom $0.016 endpoints- Eemail-verify-api-production-d262.up.railway.appDeveloper tools
Verify a single email: syntax, MX records, SMTP RCPT probe, catch-all, disposable, role-based, free-provider, typo suggestion, 0-100 score, and verdict.
Baseemail-verify-api-production-d262.up.railway.appfrom $0.0013 endpoints - SSchemaSureAI & agents
Extract strict, JSON-Schema-valid typed JSON from unstructured text or HTML. Failed extraction calls are not settled. Primary x402 V2 API for production agents.
Baseschemasure.comfrom $0.022 endpoints - Aagents.datamancer.ioCrypto & DeFi
VIN decode (x402; 402 first, $0.005, Base then Solana)
BaseSolanaagents.datamancer.iofrom $0.0051 endpoint
Address RiskCrypto & DeFiScreen an EVM wallet or contract address BEFORE paying it. Deterministic, keyless compliance / safety gate: checks the address against the OFAC sanctioned crypto-address list and a curated taint set (mixer, hack, scam) and returns a single BLOCK / REVIEW / ALLOW recommendation plus the matched sources, so an AI agent can decide whether to send funds. No API keys, no LLM, one x402 USDC micropayment
Basesanctions.cyberwarex.comfrom $0.0051 endpoint- Eemoji.todayOther services
Cast a paid vote for today's emoji election on emoji.today
Baseemoji.todayfrom $0.011 endpoint - Aapi.seerium.xyzCrypto & DeFi
News prediction market catalyst API for agents. Ranks prediction market signals by freshness, confidence, urgency, liquidity, and probability context.
BaseSolanaapi.seerium.xyzfrom $0.1025 endpoints - TTraceFastCrypto & DeFi
TraceFast knowledge graph: what an Ethereum address is, as proven facts — wallet or contract, proxy and upgradeable or not, a token and its standard, and for a token contract whether it can pause, mint or blacklist and whether it ever did. Each fact names the block it was evaluated at; an absent fact is not proven. Ethereum mainnet only. Path address: 0x-prefixed, 40 hex. Attribute dictionary: htt
Basempp.tracefast.xyzfrom $0.00519 endpoints - OOfficial Macro & FX DataMarkets & finance
Use when an agent needs the official inflation rate (year-on-year consumer prices) for a country: Eurostat HICP for the euro area, EU and 36 European countries (incl. CH, NO, TR) and US CPI-U from the Bureau of Labor Statistics. Latest month plus up to 36 months of history, flash estimates flagged. Source named in every answer. Bad input: HTTP 400 before payment; outage is not charged.
Basex402-apis.pages.devfrom $0.0025 endpoints - AAgent Data PlatformSearch & web
NSW Development Applications: Search NSW development applications by council, suburb, postcode or lodgement date, newest lodgement first.
Baseagent-data-platform.langtools.workers.devfrom $0.00516 endpoints
402rpcCrypto & DeFiOn-chain spot price of ETH or BTC in USDC from the deepest Uniswap v3 pools on Ethereum mainnet, read from a full node at the latest block (no third-party price feed). Pairs: ETH-USDC, BTC-USDC. Use it as an independent, verifiable price reference; it reflects the pool price, not an exchange average.
BasePolygonArbitrum402rpc.comfrom $0.0015 endpoints- MMacroPulseCrypto & DeFi
Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE, ASX, TSX, SIX, NSE/BSE. Returns is_open plus why it is shut (weekend, holiday, lunch break, pre/after-hours), the exchange local time, and the next open and close as ISO timestamps. Pass ?at= for any past or future moment. Zero e
BaseSolanaRobinhood Chain+9macropulse.theaslangroupllc.comfrom $0.00513 endpoints - GGeo CalcSearch & web
Bounding box (min/max latitude and longitude) enclosing a radius in meters around a point, with pole and 180 degree handling.
BaseSolanaPolygon+1geo-calc.x402tookit.comfrom $0.0212 endpoints - Ccc0.companyImages, audio & video
cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint: Sartoshi Generator, Generate 1/1 hand-drawn mfer art in the style of sartoshi (CC0). Thin wobbly ink lines, naive doodle style. Fine-tuned by cc0toshi on a public-domain corpus. CC0 output. Async — returns a job_id to poll.
Basecc0.companyfrom $0.0110 endpoints - PPennyAPI Web SearchSearch & web
Real-time web search for AI agents. Search the web for current and up-to-date information, news, facts, research, documentation, and sources beyond model training data. Returns ranked structured JSON results with title, URL, description, and position for web grounding, RAG retrieval, research, and fact-finding. Send query, optional limit, and optional freshness as URL parameters. Keyless x402 pay-
Basepennyregwatch.comfrom $0.0017 endpoints - Aapi.creativeforesight.ioOther services
Foresight API /v1/ask
Baseapi.creativeforesight.iofrom $0.019 endpoints - Ppaddock.financeMarkets & finance
Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_liveness reports whether a seller's domain answered at the nightly probe over the last seven days, with latency and sample counts.
Basepaddock.financefrom $0.0015 endpoints - Xx402-defi-signals.onrender.comCrypto & DeFi
One-call market snapshot: BTC/ETH/SOL spot prices with 24h change plus the Crypto Fear & Greed index. The cheapest way for an agent to establish market context.
Basex402-defi-signals.onrender.comfrom $0.0022 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.