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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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- Paid calls · 30 days
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Crypto & DeFi
1,023 results- Jjulie.freysa.devCrypto & DeFi
EVM smart-contract risk screen for Base tokens. Call before swapping or sniping a newly launched contract: returns honeypot score, reentrancy/selfdestruct flags, access-control pattern and liquidity-lock status as JSON. Pay 0.01 USDC on Base per call via x402.
Basejulie.freysa.devfrom $0.011 endpoint - Jjson-repairCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basejson-repair.agentdiet.devfrom Free5 endpoints - Jjson-repairCrypto & DeFi
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
Basejson-repair-72343955726.us-central1.run.appfrom Free5 endpoints - EEVM Egress PreflightCrypto & DeFi
Decodes the real recipient or spender from EVM calldata - transfer, transferFrom, approve, increaseAllowance, permit, setApprovalForAll, Uniswap V2 swaps and Multicall3 - and checks it against your allowlist and epoch caps. Catches calls whose destination is allowlisted while the money leaves elsewhere. Fails closed on unknown selectors.
Basejogger-ageless-pronounce.ngrok-free.devfrom $0.011 endpoint - Hhn-pulseCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basehn-pulse.agentdiet.devfrom Free5 endpoints - Hhn-pulseCrypto & DeFi
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
Basehn-pulse-72343955726.us-central1.run.appfrom Free5 endpoints 
Hyperliquid TrackerCrypto & DeFiHyperliquid wallet analysis: liquidation price, distance to liquidation, margin, leverage, unrealized PnL, equity buffer and risk for every open perpetual position.
Basehl-tracker.829686.workers.devfrom $0.011 endpoint- Hharuspex-x402-fn.azurewebsites.netCrypto & DeFi
Full wallet due diligence report on any Base address: token holdings, counterparty exposure, risk flags. One payment = one report.
Baseharuspex-x402-fn.azurewebsites.netfrom $0.503 endpoints - Ggrizzly-x402.onrender.comCrypto & DeFi
Base mainnet wallet summary: ETH + USDC/WETH/cbBTC/DAI balances, tx count, EOA vs contract
Basegrizzly-x402.onrender.comfrom $0.0026 endpoints - GGreedyGoo SkillCrypto & DeFi
GreedyGoo Agent Skill as an installable ZIP: a short JSON with the skill's name, version, a download link to the ZIP (the greedygoo folder with SKILL.md and its reference files) and the steps to add it in Claude. The skill covers checking and running a GreedyGoo account on Base (stock mix, Cash, credit, Protector, Rebalancer) through the hosted JAW MCP, for assistants that help a GreedyGoo user fr
Basegreedygoo-skill-x402.vercel.appfrom $0.101 endpoint - Ggithub-repo-supply-chain-scanCrypto & DeFi
GitHub-Audit Repository Supply-Chain & Dependency Scanner: Audits open-source repositories for supply-chain risks, CVEs, and secret leaks.
Basegithub.agentdiet.devfrom Free1 endpoint - Ggithub-auditCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basegithub-audit.agentdiet.devfrom Free5 endpoints - Ggithub-auditCrypto & DeFi
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
Basegithub-audit-72343955726.us-central1.run.appfrom Free5 endpoints 
Skavio Web DataCrypto & DeFiBounded retrieval of one public page as Markdown or text with byte counters and truncation flags. Raw HTML is never returned.
Basegetskavio.comfrom $0.012 endpoints- Ggenesis.palsus2023.workers.devCrypto & DeFi
Generate a SHA-256 hash and SHA-256 digest for supplied data. Produce a deterministic cryptographic content fingerprint, integrity checksum and verification digest. Price: $0.001 USDC via x402 on Base.
Basegenesis.palsus2023.workers.devfrom $0.0016 endpoints 
FundingRatesCrypto & DeFiFull funding rates — all assets, all exchanges, signal analysis
Basefunding.lonestaroracle.xyzfrom $0.051 endpoint- Ffifty-million-agent-gateway.onrender.comCrypto & DeFi
Low-cost live Base mainnet block height, gas price and chain ID for autonomous agents.
Basefifty-million-agent-gateway.onrender.comfrom $0.0051 endpoint - FFastX402Crypto & DeFi
Domain availability and registration info (registrar, created, expires, status, nameservers) via RDAP
BaseSolanafastx402.toolsfrom $0.001169 endpoints - Ffalcon.sol structuresCrypto & DeFi
falcon.sol structures: structured-note pricing for crypto. Send a JSON term sheet (autocallable, barrier reverse convertible, range accrual, principal-protected, shark fin) on BTC, ETH or SOL; get the fair coupon or participation, probabilities (autocall per observation, knock-in, loss), greeks, a spot x vol scenario grid and payoff-diagram data. Monte Carlo on live Deribit implied vol. Free previ
Basefalcon-structures.falcon-sol.workers.devfrom $0.021 endpoint - Eemblemvault.aiCrypto & DeFi
Get recent DEX trades by smart money wallets. Spot what top traders are actively buying/selling.
BaseSolanaemblemvault.aifrom $0.00123 endpoints - Eemail-verifyCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Baseemail-verify.agentdiet.devfrom Free5 endpoints - Eemail-verifyCrypto & DeFi
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
Baseemail-verify-72343955726.us-central1.run.appfrom Free5 endpoints - TToken Risk ScoreCrypto & DeFi
Full-text search across SEC EDGAR filings (10-K, 10-Q, 8-K, S-1, 13F, Form 4 and every other form type) returning the filer CIK, company name, form type, filing date and accession number for each hit. Takes a keyword phrase and an optional form filter.
Baseedgar-x402.x402api.workers.devfrom $0.023 endpoints - HHL MarkCrypto & DeFi
Catalog of paid Grok x402 routes. Free seed so agents can find /alpha/full.
Baseearn-pulse.haiqingm58.workers.devfrom Free36 endpoints - EEarlyThunderCrypto & DeFi
Top crypto protocol earnings yields from EarlyThunder: yield percent, source of yield, TVL and risk rating for 15 protocols.
SolanaBaseearlythunder.comfrom $0.015 endpoints - Ddomain-osintCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basedomain-osint.agentdiet.devfrom Free5 endpoints - Ddomain-osintCrypto & DeFi
Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.
Basedomain-osint-72343955726.us-central1.run.appfrom Free5 endpoints 
Bitcoin Market PulseCrypto & DeFiEvery AML case (score >= 25) this node detected on one day (YYYY-MM-DD, last 30 days), gzipped JSON lines.
Basediamond.btc-intel.workers.devfrom $0.029 endpoints- DDevX Agent APICrypto & DeFi
ERC-20 token safety pre-check from on-chain data only (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC): name/symbol/decimals/supply, owner and whether renounced, EIP-1967/minimal proxy detection, and a bytecode scan (incl. implementation) for mint, blacklist, adjustable-fee, max-tx, trading-switch and pause functions, with flags and a risk level. Run before swapping into an unknown token. $0.005
Basedevx-x402-tools.nextill-pos.workers.devfrom $0.0012 endpoints - DDevrynoCrypto & DeFi
Cheap x402 ping. Returns server time and receive wallet. $0.001 USDC on Base.
Basedevryno.comfrom $0.0011 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.