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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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3,044 results- Aapi.market2000.xyzMarkets & finance
Trading Portfolio — the book as it stands right now. Every open position with its size, entry, live mark and unrealized PnL, plus total account equity. Real fills on a real venue, not a delayed report. HOW TO CALL: GET /trading/portfolio RESPONSE: account_value_usd — total equity in USD open_positions — [{asset, side, size, entry_price, mark_price, unrealized_pnl}] PRICING: $0.0001
Baseapi.market2000.xyzfrom $0.00011 endpoint - MMantisMeshAI & agents
checkpoint.save: Save portable execution state for autonomous agents when a task may outlive the current process, model session, container, or machine. Durable checkpoints support cross-session recovery and cross-provider state portability; companion handoff and lock capabilities support delegation and coordination between autonomous agents.
Solanaapi.mantismesh.comfrom $0.011 endpoint - LLupa AR APIMarkets & finance
Dólar blue en Argentina, un solo dato: compra, venta, fecha y fuente. Sin fecha: cotización actual (dolarapi.com). Con fecha=YYYY-MM-DD (desde 2011-01-03, mismo precio): valor de esa fecha según api.argentinadatos.com. Mercado informal relevado por terceros.
Baseapi.lupapago.comfrom $0.0017 endpoints - Aapi.isocast.devOther services
No description yet.
Baseapi.isocast.devfrom $0.011 endpoint - 660SecMonitor Status APIOther services
List recent outages and incidents for one SaaS vendor. $0.01 USDC on Base per call. Returns up to 10 most recent incidents (title, status, severity, start and resolve times) from 60SecMonitor. Unknown vendors return 404, not charged. Don't use this for live up/down status; use /v1/status.
Baseapi.isitdownapi.comfrom $0.013 endpoints - Aapi.ingest0r.comOther services
No description yet.
BaseSolanaapi.ingest0r.comfrom $0.014 endpoints - IInboxGuards Email TestDeveloper tools
Get the exact SPF, DKIM and DMARC DNS records to publish for a domain. $1 USDC on Base per call. Reads live MX, NS, SPF, DKIM and DMARC, detects the mail provider and DNS host, and returns records in order (create, replace or keep) with one merged SPF and a staged DMARC policy. Don't use this for testing a real sent message; use /v1/report.
Baseapi.inboxguardstest.comfrom $0.0053 endpoints - Aapi.hypercli.comOther services
HyperClaw plan purchase (variable amount, prorated by payment)
Baseapi.hypercli.comfrom $0.014 endpoints - Aapi.httpayer.comOther services
No description yet.
Baseapi.httpayer.comfrom $0.00521 endpoint - Aapi.heyanon.aiSocial & people
Ask Gemma AI bot for general crypto information including protocols analysis, community insights, market data, news, TVL analytics, sentiment analysis, and token research. Gemma has access to: community (Telegram/Discord/Twitter/Docs analysis), dailyCommunityPulse (24h crypto news), tvl_info (DeFi TVL analytics), fees_info (protocol fees data), defillama_protocols_info (DeFi protocols info), messa
Baseapi.heyanon.aifrom $0.011 endpoint - Aapi.hashhunter.appOther services
Please use POST method with the appropriate request body to interact with this endpoint.
Baseapi.hashhunter.appfrom $0.0000011 endpoint - GGROUNDTRUTHCrypto & DeFi
GROUNDTRUTH creator counts: launches, rugged, died, active, survived, graduated, and the observed-only baseline the known_bad line is drawn from. Live fields from the mint feed every 5 s: last_mint_live, launched_live, bonded_live, mints_since_asof; ticker_asof = the newest mint seen. No mints_since_asof = not live.
Solanaapi.groundtruths.xyzfrom $0.012 endpoints - Xx402 PingOther services
Cheapest possible paid call for testing an x402 client end to end. Returns pong plus server time. $0.001.
BaseSolanaapi.gptshopltd.comfrom $0.0011 endpoint - Aapi.gitbeacon.devOther services
No description yet.
Baseapi.gitbeacon.devfrom $0.011 endpoint - HHirePulseSocial & people
Convert a public web page to clean LLM-ready Markdown with title, meta description and approximate token count. Removes scripts, styles, navigation, footer and common ad clutter. SSRF and redirect protected. max_chars 1–100000 (default 15000). $0.002; empty results free.
Baseapi.gethirepulse.xyzfrom $0.00211 endpoints - Aapi.g402.aiAI & agents
No description yet.
Baseapi.g402.aifrom $0.0011 endpoint - Aapi.finnputerdex.comCrypto & DeFi
FINNPUTER deep token safety scan (clusters + forwarded supply)
Solanaapi.finnputerdex.comfrom $0.0052 endpoints - FFin Codes APIMarkets & finance
Validate and look up an IBAN using maintained banking reference data. Returns account structure, country, national bank/branch codes and the associated BIC/SWIFT where available. No account, API key or subscription required; x402 clients handle USDC payment automatically. Requests missing the iban field or containing other fields are rejected with HTTP 400 before payment. Price: $0.04 USDC per req
Baseapi.fincodesapi.comfrom $0.014 endpoints - EExepalSearch & web
Prompt-injection scanner: checks a web page, document or tool result for hidden instructions aimed at AI agents (hidden HTML, white text, comments, Unicode smuggling, base64) and injection phrases; verdict, 0-100 score, findings, optional cleaned text
Baseapi.exepal.comfrom $0.0015 endpoints - Aapi.drayn.onlineData & research
Check supplied OHLCV candles for missing intervals, duplicates, ordering, UTC alignment, OHLC relationships and negative volume. Returns FIT or NOT_FIT with defects and a dataset hash. Structural validation only: no data fetching, source authentication or trading advice. Completed checks cost 0.01 USDC even when NOT_FIT. Maximum 5000 rows/expected intervals and 1 MiB JSON; rows or CSV inside JSON.
Solanaapi.drayn.onlinefrom $0.013 endpoints - Aapi.dev.hypercli.comOther services
HyperClaw plan purchase (variable amount, prorated by payment)
Baseapi.dev.hypercli.comfrom $0.013 endpoints
Deside AskCrypto & DeFiDeside directory question: one answered question about the AI agents in the directory
Solanaapi.deside.iofrom $0.011 endpoint- Aapi.demandex.devOther services
No description yet.
Baseapi.demandex.devfrom $0.013 endpoints - Aapi.crushrewards.devOther services
Analyst/market-level query - $0.02 per request
BaseSolanaapi.crushrewards.devfrom $0.00526 endpoints - Aapi.compute3.aiAI & agents
No description yet.
Baseapi.compute3.aifrom $0.011 endpoint - Chit402Crypto & DeFi
Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.
Solanaapi.chit402.comfrom $0.0021 endpoint - Aapi.chipscan.xyzCrypto & DeFi
chipscan fast token security audit
Baseapi.chipscan.xyzfrom $0.011 endpoint - Aapi.chainward.aiCrypto & DeFi
Fresh on-chain risk report for a Base address before you pay it: neutral signal band, every flag with its evidence and source, what was not assessed, and the EAS attestation if one exists. Never a safety verdict.
Baseapi.chainward.aifrom $0.0113 endpoints - CChainK9Crypto & DeFi
ChainK9's deepest token check on BNB Smart Chain, Ethereum, Base or Arc, for bigger buys and due diligence. Everything /scan does (a real buy and sell on a fork of the chain plus 70+ checks: honeypot, changing taxes, owner powers tried for real, limits, cooldowns, liquidity, upgrade authority), plus who holds the token: the largest holder's and the top 10's share of supply, ranked from the token's
Baseapi.chaink9.comfrom $0.00213 endpoints - Aapi.carredge.comCrypto & DeFi
DollarChase Extract: Funding rates de perpetuos en 5 exchanges (Binance, Bybit, Hyperliquid, dYdX, Kraken) con extremos cruzados e higiene de datos
Baseapi.carredge.comfrom $0.0051 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.