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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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393 results- EEdge Agents AICrypto & DeFi
Latest available Türkiye central government debt plus a comparable annual history from the World Bank World Development Indicators API, with source, lag and revision caveats. Purpose: Give an autonomous agent a normalized, directly sourced Türkiye central government debt series without forcing it to understand World Bank indicator codes or response shapes. 24-hour freshness target; missing evidenc
BasexrplSolana+2pay.edge-agents.aifrom $0.0184 endpoints - SScrapling x402 Data StoreCrypto & DeFi
Current price of BTC, ETH and about 155 other major coins, read from Chainlink on-chain price feeds: USD price, 1h/24h/7d/30d % change and 24h high/low. Market cap, volume, supply and all-time high are not included. Example: q=btc, q=ethereum, q=solana. Refreshed about every 30 min
BasePolygonArbitrum+1scraplingdata.xyzfrom $0.00156 endpoints
x402 Weather APICrypto & DeFiLive current weather conditions for any city, sourced from Open-Meteo
BasePolygonArbitrum+1x402tap.comfrom $0.00116 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 - 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 - 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 - 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 - 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
BarkerCrypto & DeFiQuery real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.
X LayerBaseEthereum+2mcp.barker.moneyfrom $0.0013 endpoints- CCoinGecko Crypto Price & DataCrypto & DeFi
Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).
BasePolygonArbitrum+1coingecko.use.x402atlas.comfrom $0.0056 endpoints - Aapi.carbon-cashmere.deDeveloper tools
Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.
BasePolygonArbitrum+4api.carbon-cashmere.defrom $0.0245 endpoints - SSCVD General StoreOther services
Spot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made
BasePolygonArbitrum+3scvd.storefrom $0.00112 endpoints
x402 Weather APICrypto & DeFiLive current weather conditions for any city, sourced from Open-Meteo. Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31, 2026). Evidence: https://x402-list.com/services/agentx402pay
BasePolygonArbitrum+1agentx402pay.comfrom $0.00121 endpoints- WWeb Search, News & Page ReaderMarkets & finance
Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, finance. Date, domain and exact-phrase filters.
BasePolygonArbitrum+1websearch.use.x402atlas.comfrom $0.015 endpoints - Iip402.xyzData & research
Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.
BasePolygonArbitrum+2ip402.xyzfrom $0.011 endpoint
Tanod utilpeekImages, audio & videoutilpeek (Tanod) file upload: PDF, Office, image, audio, CSV, JSON or text stored for up to 24 hours and returned as a download link. Use when an agent holds a file and must give the next tool a URL for it: a link that expires within 24 hours.
SolanaBasePolygon+2tanod.devfrom $0.0005279 endpoints- PPyfile x402 APICrypto & DeFi
Latest EVM block number for base|polygon|arbitrum|optimism. ?chain=base
BasePolygonArbitrum+1pyfile-agent.taile3ff35.ts.netfrom $0.00217 endpoints - CClearCheckCrypto & DeFi
Federal disaster declarations for a US state or county: what is open now, incident types, and how recent.
BaseSolanaPolygon+1loonie-toll.onrender.comfrom $0.0249 endpoints - WWikipedia Article SummaryImages, audio & video
Wikipedia article summary — plain-text and HTML extract, short description, thumbnail and Wikidata id for any title, in a clean normalized envelope with CC-BY-SA attribution.
BasePolygonArbitrum+1wiki.use.x402atlas.comfrom $0.0051 endpoint - AApple App Store Search & ReviewsSearch & web
Apple App Store reviews — pull an app's user reviews by numeric product_id: title, text, rating, version, author & date, with paging & sort, as clean JSON.
BasePolygonArbitrum+1appstore.use.x402atlas.comfrom $0.025 endpoints - SStewardImages, audio & video
Use when an agent or user wants a clean original joke — family-friendly humor from the Synthetic Universe. Pure compute, no upstream. Optional session id avoids repeats. Use permitted: build it into your products and services, paid or free. Raw redistribution of the feed itself is prohibited.
BasePolygonArbitrum+1pay.brianbooms.comfrom $0.00531 endpoints - Aapi.munition.ioImages, audio & video
Munition Firecrawl Scrape: x402-paid web page scraping for AI agents. Pay 0.015 USDC per URL to get the page rendered with JavaScript and converted to clean markdown (optionally raw HTML, links, summary). Use when a plain fetch returns empty, JS-only or 403 content.
BasePolygonArbitrum+1api.munition.iofrom $0.00115 endpoints - Ppulse-api-production-7aae.up.railway.appCrypto & DeFi
Global Pro adds independent higher-timeframe context, SMA family, regression channel, anchored VWAP, Fibonacci, confirmed pivots, RSI and ATR evidence to the same 520-candle chart and aligned Spot plan. Context follows the selected timeframe; conditional paths and unclear Elliott counts are explicit. Free full-report recovery. Market or Limit orders require separate wallet review and signing.
ArbitrumBasepulse-api-production-7aae.up.railway.appfrom $0.206 endpoints - HHyperliquid Smart Money Data APICrypto & DeFi
Hyperliquid perps (perpetual futures). What history exists before you pay for it: how many markets we track, which asset classes, and the range covered. The cheap probe that tells an agent whether the paid series is worth buying
SolanaBaseArbitrum+2whaletape.xyzfrom $0.015 endpoints - Aagentworld.meSocial & people
AgentWorld Agent Leaderboard - top AI agents ranked by USDC wealth or reputation score. Includes job role, city, mood, personality archetype. Updated every 3 minutes by the tick engine. Filter by city or job.
BaseEthereumArbitrum+3agentworld.mefrom $0.0012 endpoints
CRA AGENT dataImages, audio & videoA short plain-text summary of one Wikipedia article, with its image and last update. Content is CC BY-SA 4.0.
SolanaBaseEVM chain 5042+10api.cra-agent.techfrom $0.000520 endpoints- HHyperliquid Market DataCrypto & DeFi
Current mid price for every Hyperliquid asset (perps + spot) in one call — a fast whole-venue price snapshot.
BasePolygonArbitrum+1hyperliquid.use.x402atlas.comfrom $0.0059 endpoints - AAgent Arcade: Reasoning GamesAI & agents
Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle.
BasePolygonArbitrum+1agent-arcade.use.x402atlas.comfrom $0.00510 endpoints - 4402rates.comCrypto & DeFi
Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/
BasePolygonArbitrum+1api.402rates.comfrom $0.0014 endpoints - DDNS A Record LookupSocial & people
DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. For host resolution, connectivity and uptime checks, IP-reputation enrichment and infrastructure mapping.
BasePolygonArbitrum+1dns.use.x402atlas.comfrom $0.0057 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.