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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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695 results- GGEDX402 ChatAI & agents
OpenAI-compatible chat completions across many open models, paid per call in USDC with no API key. POST { model, messages, max_tokens? } and pick model from GET /v1/models (fast, smart, code, reasoning and 70B tiers, among others). The price is set from the model's rates and your request size, so short prompts on small models cost the least; the 402 shows the exact amount before you pay. Hero: GET
Basechat.gedx402.comfrom $0.0051 endpoint - 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 - 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 - 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
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- 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 - 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 - MmagentOther services
Map a natural-language drug, diagnosis, or lab phrase to a current RxNorm, ICD-1
Baseapi.magentlab.comfrom $0.0054 endpoints
Base wallet balancesCrypto & DeFiReturns the native ETH balance and ERC-20 token balances of one Base wallet address, read live from Base mainnet at the latest block: USDC, WETH and the rest of the top 200 Base tokens by market cap, plus up to 50 token contract addresses named in the request. Each row carries the token symbol, name, decimals, raw amount and human-readable amount. Suited to checking a wallet's current holdings bef
Baseapi.botx402.iofrom $0.011 endpoint- CCrypto Market DataCrypto & DeFi
Real crypto market data in one batched call: price, market cap, market-cap rank, 24h volume/high/low/change, circulating/total/max supply, and all-time-high with date -- for BTC, ETH, SOL, and 17+ other major coins by ticker. Richer than a plain price feed: most stock-data APIs' crypto tickers report null market cap. From CoinGecko. $0.005/call.
BaseSolanax402-stock-indicators.vercel.appfrom $0.00510 endpoints - EEDGAR Fundamental ScoresCrypto & DeFi
Cheapest way to test this API and your x402 wallet. Returns the same one-line healthy/watch/distress verdict + fraud-risk flag as /v1/verdict, for one of these sample tickers: AAPL, MSFT, NVDA, TSLA, META, BRK-B, JPM, CVX, KO, SMCI (query ticker=, default AAPL). Data: SEC EDGAR 10-K XBRL. Errors are never charged (bad tickers rejected before payment; failed calls not settled).
Basefundamental-scores-x402.onrender.comfrom $0.00111 endpoints - WWeb SearchMarkets & finance
General web search reselling the Tavily Search API: query the live web and get back ranked results (title, URL, snippet, relevance score) plus an optional short synthesized answer, with basic or advanced search depth and optional domain include/exclude filters.
Base4yearcycle.comfrom $0.0053 endpoints
OrcpinCrypto & DeFiSingle-trade T+1 settlement date, as a one-line GET: given a trade date and an as-of date, returns the settlement date and whether it has settled, on the versioned NYSE holiday calendar with SEC Rule 15c6-1 cited. The low-integration sibling of the batch settlement-dates route — no request body. A dates fact, never a violation determination. Nothing is stored.
Baseorcpin.devfrom $0.015 endpoints- Xx402 Service FinderImages, audio & video
Find the best x402 API for a task. Describe what you need (for example "remove the background from a photo") and get the matching sellers from the CDP Bazaar ranked by relevance, how many distinct buyers paid them in 30 days, their uptime measured by our monitor every 6 hours, and price. Each result has its price, payers, uptime, median latency and how to call it (method and example input).
Basefinder.kagurazaka.devfrom $0.0021 endpoint - Mmcp.gapup.ioAI & agents
Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair
Basemcp.gapup.iofrom $0.00222 endpoints - Aads.forgemesh.ioSearch & web
Returns network-wide totals: total x402 events, service count, and a UA classification breakdown (agent vs browser vs bot). Use it to benchmark your service's agent-traffic share against the network.
Baseads.forgemesh.iofrom $0.0054 endpoints - LLending Rate OptimizerCrypto & DeFi
Discover what your assets could earn through lending—and where to find the strongest rates. Compare supported lending markets to find the best rates for the assets you hold and the amount you want to put to work.
Baseapi.alphabuild.xyzfrom $0.012 endpoints - TTrending Topics (Wikipedia)Search & web
What is trending right now: the most-read Wikipedia articles for a language and day (default yesterday UTC), with views and rank, cleaned of the Main Page, special and other non-article pages. A daily signal of trending topics, breaking news and current events in 300+ Wikipedia language editions. Suited to trend discovery, news monitoring and content ideas.
BaseSolanaattention-trends.shopttyass-85f.workers.devfrom $0.0056 endpoints - Zzaref.devOther services
South African Fuel prices (Current SA retail/wholesale fuel prices: petrol 93/95 (inland & coastal), diesel 50ppm, illuminating paraffin. Rand per litre.) Clean cited JSON with official source URL, effective date and freshness flag.
Basezaref.devfrom $0.0056 endpoints - AAARN Web ReadAI & agents
Read one public web URL and convert its webpage content to clean Markdown or plain text. Removes HTML boilerplate and returns LLM-ready text for AI agents, RAG context, research and summaries. One URL per paid request.
Baseapi.aarn.spacefrom $0.0022 endpoints - EExchange Trading CalendarMarkets & finance
Use when an agent needs to know if a stock exchange trades on a given day (default today) before scheduling orders, reports or alerts. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Returns holiday name, hours in local time + UTC, half days, lunch breaks, pre/after-market (Nasdaq, Xetra), live status, next open/close, previous/next trading day. Official exc
Basehandelskalender-api.pages.devfrom $0.0023 endpoints - AAgent GuildAI & agents
Agent Guild paid read (fraud_check): collusion suspicion scores, reasons and cluster identifiers Use when an autonomous agent needs to: list agents at or above a minimum collusion suspicion score; review flagged agents and their collusion suspicion reasons.
Baseagent-guild-5d5r.onrender.comfrom $0.0052 endpoints - Xx402helper.xyzOther services
Find US court cases, opinions and dockets naming a business, with case name, court, date, citation, docket number and nature of suit.
SeiBaseSolana+2x402helper.xyzfrom $0.0016 endpoints - Ssimilarity.openverbs.comCrypto & DeFi
Sørensen-Dice similarity coefficient in [0,1] over character bigrams — robust to word order and minor edits.
Basesimilarity.openverbs.comfrom $0.00210 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.