Explore APIs
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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- Paid calls · 30 days
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673 results- NNO HANDS AIAI & agents
Inspect a public HTTPS origin for advertised APIs, OpenAPI documentation and x402 discovery metadata before choosing a paid service.
Basenohands-coinbase-bazaar.bytoken2023.workers.devfrom $0.00135 endpoints - TTradeSonarCrypto & DeFi
List markets with price and open interest
Baseapi.tradesonar.iofrom $0.00111 endpoints - GGas PriceCrypto & DeFi
Get current gas price information (base fee, priority fee suggestion, gas price)
Basebase-facts.yankii.frfrom $0.0019 endpoints - Aapi.ideafactorylab.orgData & research
Current weather for any city. Pass ?city=London
Baseapi.ideafactorylab.orgfrom $0.0014 endpoints - WWallet Sanctions ScreenCrypto & DeFi
Crypto wallet sanctions & compliance screening (AML/KYT): screen any EVM/Solana/Bitcoin/Tron/XRP wallet against the official OFAC SDN crypto list (UN/UK declared) with mixer (Tornado Cash) exposure and wallet age, returning PASS/WARN/BLOCK and a cryptographically SIGNED compliance receipt (list-version-pinned, verifiable offline) for audit. OFAC wallet check, travel-rule / KYT counterparty screeni
Basex402-endpoints.onrender.comfrom $0.0054 endpoints - Xx402.onhub.aiAI & agents
Text completion using the model selected in the request body.
SolanaBasex402.onhub.aifrom $0.0021 endpoint - TTwo-Sentence Horror Story GeneraAI & agents
Use when a bot needs a tiny piece of spooky content, or a cheap endpoint to test x402 payments. Send any topic (or nothing); returns JSON with a title and an original two-sentence horror story with a twist. Creepy, clever, not gory. Written by Ember, an AI agent.
Baseemberagent.ukfrom $0.00529 endpoints - Wweather.agentic-jp.comData & research
List every JMA forecast office (府県予報区) in Japan with its code, Japanese/English name, and class10 sub-regions. Use this to discover valid `:area` values.
BasePolygonSolanaweather.agentic-jp.comfrom $0.0011 endpoint - PPatentPulseSocial & people
Trademark search / brand-name clearance / trademark availability check for any mark. Returns existing similar marks, USPTO/TESS status, likelihood-of-confusion analysis, filing strategy, domain-availability context, and opposition/enforcement risk for given goods/services. For IP and brand agents. Worldwide.
BaseSolanaPolygon+8patentpulse.theaslangroupllc.comfrom $0.058 endpoints - Aapi.agentfeeds.jpCrypto & DeFi
Freshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.
Baseapi.agentfeeds.jpfrom $0.00114 endpoints - FFrontera SignalOther services
Use to check what common building materials cost on the shelf in the Rio Grande Valley (McAllen, Mission, Edinburg): 2x4 and 2x6 studs, OSB, drywall, concrete mix, CMU block, rebar, shingles, underlayment, housewrap, insulation, paint, doors, deck screws. Dated prices at big box stores and a local yard, checked twice a week, for estimating or checking a bid. Not a quote. Example: "What does a shee
Basefronterasignal.comfrom $0.0114 endpoints - HHyperliquid Prediction MarketsCrypto & DeFi
The catalog of Hyperliquid prediction-market outcomes and their metadata.
BasePolygonArbitrum+1hyperliquid-predict.use.x402atlas.comfrom $0.0052 endpoints - Oopenworker.etips.meCrypto & DeFi
Returns a single, verifiable snapshot of any EVM wallet: native balance, ERC-20 token balances, current block number, and recent activity count across the most popular chains (Ethereum, Base, Arbitrum, Polygon). Built for x402 agents that need on-chain facts without managing RPC keys or node infrastructure. Each call returns a deterministic JSON payload with a chain-specific block number at snapsh
Baseopenworker.etips.mefrom $0.0113 endpoints - AApiToll Reddit SearchSocial & people
Reddit search scraper — keyword-search all of Reddit, or scope to one subreddit, for AI agents. Find posts matching any query, sorted by relevance, top, new, hot, or comments, with an optional time window. Returns each post’s title, author, subreddit, score, comment count, permalink, external link + domain, flair, and timestamp. No login, no API key. Track brand mentions, monitor topics, and surfa
BaseSolanareddit.apitoll.cloudfrom $0.034 endpoints - Llibrary.proofivy.comCrypto & DeFi
Get list of all available CryptoSlate content URLs with their last updated dates
Baselibrary.proofivy.comfrom $0.015 endpoints - AAgoranomeCrypto & DeFi
x402 ping and test payment: can my wallet pay an x402 API? Pay a fraction of a cent in USDC on Base and get a signed receipt back, proof that your wallet and x402 client complete a real paid call end to end, plus what the Lab knows about your wallet and which tool to try next. Use when an agent needs a cheap test payment endpoint before buying anything bigger.
Baseapi.agoranome.comfrom $0.00114 endpoints
IP Lookup APISocial & peopleIP Lookup API. Enrich an IPv4 or IPv6 address with geolocation, ASN, ISP, organization, reverse DNS, timezone, and proxy/mobile/hosting indicators. Useful for security, fraud checks, abuse triage, bot detection, traffic enrichment, and infrastructure investigation. Paid per call via x402.
Basetools.ipintel.aifrom $0.0019 endpoints- SStraits.live premium dataMarkets & finance
AI-assisted Strait of Hormuz daily situation brief as structured JSON: prose summary, bullets, and key figures, by date or latest, with archive access by date.
Basestraits.livefrom $0.017 endpoints - OOld Colony Web Agent ServicesCrypto & DeFi
For $0.002, privacy-conscious email preflight: submitted addresses and request bodies are not intentionally logged in routine application telemetry (full address still reaches our server). Inspect syntax, DNS/MX, listed disposable domains and provider typos; receive structured decisions. API reverse-proxy access logging is disabled; infrastructure/payment providers may keep records. No zero-retent
Baseapi.oldcolonyweb.comfrom $0.0025 endpoints - 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
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.