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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Other services
583 results- Aapi.boonprotocol.comOther services
Boon x402 endpoint recognition graph
Baseapi.boonprotocol.comfrom $0.012 endpoints - WWintelOther services
Live scored geopolitical threat feed: name, category, severity, coordinates, and source URL for every active tracked threat.
Basewintel.canopy.financefrom $0.011 endpoint - LLocus x402 ServicesOther services
Locus public pay-per-use API
Basesuno.x402.paywithlocus.comfrom $0.0052 endpoints - PPeru Rates and InflationOther services
Lima consumer price inflation — latest monthly CPI percentage change for Metropolitan Lima, Peru. Track inflation and purchasing power trends with the reference month.
BasePolygonArbitrum+1peru-macro.use.x402atlas.comfrom $0.012 endpoints - CCoin FlipOther services
Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.
Basecoinflip402.vercel.appfrom $0.0011 endpoint - Ggateway.grapevine.fyiOther services
0.001 USDC on base
Basegateway.grapevine.fyifrom $0.0014 endpoints - LLocus x402 ServicesOther services
Locus public pay-per-use API
Basereplicate.x402.paywithlocus.comfrom $0.0043 endpoints - Ccode-toll-production.up.railway.appOther services
Diagnose a failed x402 payment. Returns structured error code, human explanation, and exact fix. Example: /diagnose?error=insufficient_funds&balance=0.003&required=0.01
Basecode-toll-production.up.railway.appfrom $0.014 endpoints
JoJ APIOther servicesSpotify — GET /v2/album/detailsAndTracks (v2/Album details & tracks)
Basespotify.jojapi.netfrom $0.012 endpoints- Ggrundpreis.halowerk.comOther services
Distribution of latest included product/store observations, with regular and promotional prices separate. Example: category en:pastas, country DE. Cheapest means cheapest included observations, not the whole market.
Basegrundpreis.halowerk.comfrom $0.0025 endpoints - Eernte.halowerk.comOther services
Wholesale overview by product group and unit basis with source periods and comparable changes. Example: sort name. Piece and kg quotes are separate rows. German-origin percentages describe included observations, not market share.
Baseernte.halowerk.comfrom $0.0025 endpoints - LLuhn checkOther services
Validate a 9-digit US ABA bank routing number by its weighted (3,7,1) mod-10 checksum. Spaces and hyphens are ignored.
Basecheckdigit.openverbs.comfrom $0.0025 endpoints - JJapan Business CalendarOther services
Tell whether a given date is a Japanese business day. Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmetic used by invoicing, logistics and HR systems in Japan.
Basetorii-gateway-production.ichis-lab.workers.devfrom $0.011 endpoint - Aapi.metalend.techOther services
Returns MetaLend API services directory with a one-line summary of each RebalancerResource endpoint plus links to API docs.
Baseapi.metalend.techfrom $0.0011 endpoint - Ccloudprice.genexxis.comOther services
Cheapest AWS EC2 instances (Linux) with at least the given vCPU and memory, on-demand or spot, optionally in one region.
Basecloudprice.genexxis.comfrom $0.013 endpoints - Wwillimake-it.dylan-caponi.workers.devOther services
Ask the oracle: will I make it?
Basewillimake-it.dylan-caponi.workers.devfrom $0.0011 endpoint - Ppredict.memoryapi.orgOther services
Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.
Basepredict.memoryapi.orgfrom $0.0013 endpoints - BBrazil Rates and InflationOther services
Brazil IPCA inflation — latest monthly consumer-price change in percent. Track inflation and purchasing-power trends with the reference month.
BasePolygonArbitrum+1brazil-macro.use.x402atlas.comfrom $0.012 endpoints - Xx402-v2-mint-safe-regex.vercel.appOther services
RE2 regex (no ReDoS). Named groups as JSON. Match count capped.
Basex402-v2-mint-safe-regex.vercel.appfrom $0.0021 endpoint - UUUID InspectorOther services
UUID inspector — parses any UUID (canonical, braces, URN or 32-hex form) and returns its version, variant, embedded timestamp for v1/v6/v7, nil/max flags, hex and URN forms. Use to validate identifiers or recover the creation time of UUIDv7 keys.
BasePolygonArbitrum+1uuid.use.x402atlas.comfrom $0.0052 endpoints - Ttravel.forgemesh.ioOther services
Fare Pulse — cheapest live fares from a major US hub, cached snapshot.
Basetravel.forgemesh.iofrom $0.0051 endpoint - FFormat currencyOther services
Format a numeric amount as currency for a given locale using Intl, honouring the currency's own minor-unit convention (USD→2, JPY→0). display selects the symbol, narrow symbol, ISO code or full name. An unknown currency or locale is a clean 400.
Basemoney.openverbs.comfrom $0.0024 endpoints - Ppkgsafe.adrwent.fyiOther services
Call before installing or updating an npm or PyPI dependency. Returns a verdict (ok, caution, avoid, unknown) plus evidence signals: install script added, maintainer or publisher change, very recent publish, build provenance dropped, known malware and vulnerability advisories. A clean result is not a guarantee of safety.
Basepkgsafe.adrwent.fyifrom $0.0051 endpoint - Aapi.node4all.comOther services
Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Currency: USDC on Base.
Baseapi.node4all.comfrom $0.0021 endpoint - FFastPath Bitcoin APIOther services
Pay once to receive a short-lived WebSocket ticket for the live Bitcoin mempool stream.
BasePolygonArbitrum+1api.nativebtc.orgfrom $0.0052 endpoints - ZZoningVerdictOther services
Address-to-zoning lookup for published municipalities. Coverage: 63 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Positioning: Records tell you what's on file; ZoningVerdict tells you what the ordinance actually says, independently verified, with the citation. Responses include source citations a
Basezoningverdict.comfrom $0.011 endpoint - VVerify UKOther services
UK VAT number format + check-digit test: Checks a UK VAT number's format and HMRC check digits (mod 97 / 9755). Catches fake or mistyped VAT numbers instantly without an HMRC call. Use /v1/business/check to confirm live registration.
Baseverify-uk.verifyuk.workers.devfrom $0.0011 endpoint - Xx402-v2-mint-package-registry.vercel.appOther services
npm / PyPI package metadata (keyless). Ecosystem + name → latest version, license, homepage.
Basex402-v2-mint-package-registry.vercel.appfrom $0.0031 endpoint - Xx402-v2-mint-csv-normalize.vercel.appOther services
Parse CSV into JSON rows keyed by trimmed snake_case headers. Offline. Amp port.
Basex402-v2-mint-csv-normalize.vercel.appfrom $0.0031 endpoint - Xx402-v2-mint-base64.vercel.appOther services
Base64 encode/decode UTF-8 text (standard or URL-safe). Offline. Amp port.
Basex402-v2-mint-base64.vercel.appfrom $0.0031 endpoint
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.