Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
- Projects
- 4.4K
- Paid endpoints
- 87K
- Paid calls · 30 days
- 885K
- Launched here
- 0
Crypto & DeFi
844 results
The Agents Gift ShopCrypto & DeFiThe Agents Gift Shop — Designs created by the paying wallet (paid)
Basetheagentsgiftshop.comfrom $0.0011 endpoint
KushBitx AgentProofCrypto & DeFiA deterministic Base chain identity and official USDC contract-presence check. No request body. Not a token-risk report, transaction simulation, or payment proof.
Basestaging.kushbitx.comfrom $0.0011 endpoint- BBase USDC lending APYCrypto & DeFi
Base USDC lending APY. Should you park this wallet's USDC on Base? Snapshot of native USDC + ETH, then the same size-aware Aave V3 vs Morpho Gauntlet USDC Prime yield pick (USD per year, days to break even, skip if gas eats it). Not a deposit instruction.
Baseraptor-base-yields.vercel.appfrom $0.012 endpoints - TTreasury PreflightCrypto & DeFi
Current USDC and USDT transfer fee in USD per chain, bound to a block number with a validity window.
Basepreflight.admapu.xyzfrom $0.0021 endpoint - Ppolymarket-snapshot.x402supply.comCrypto & DeFi
Searches Polymarket prediction markets by text and returns current outcome prices, volume, liquidity, end date and resolution status. Read-only market data, not financial advice.
Basepolymarket-snapshot.x402supply.comfrom $0.0051 endpoint - Ccryptoanalysis-track-recordCrypto & DeFi
cryptoanalysis.info hypothetical advisory track record: bounded completed-session history and summary, with the confidence quality statistics. The history ends 7 days before the request's UTC date.
Basepaid-api.cryptoanalysis.workers.devfrom $0.011 endpoint - Nnbxs4 Solana Mint EvidenceCrypto & DeFi
Solana SPL Token / Token-2022 mint and extension observations from finalized RPC; unknowns remain unknown. Free preparation returns an immutable report ID; paid read costs 0.01 USDC on Base. Not a sellability or safety verdict.
Basenbxs4.nbx4.devfrom $0.011 endpoint - Lllm-model-price-table.x402supply.comCrypto & DeFi
Ranks models cheapest first by blended USD per 1M tokens (inputShare weights input vs output). Filter by provider, mode, minContextTokens, input/output modality, function calling, vision and price caps. Skips sample_spec and models past their deprecation date.
Basellm-model-price-table.x402supply.comfrom $0.0051 endpoint - Ffuse402.vercel.appCrypto & DeFi
Real-time Fuse payment network statistics — transaction volumes, network health, gas tiers, FUSE token price.
Basefuse402.vercel.appfrom $0.011 endpoint - EEdge Agents AICrypto & DeFi
Euro Area M3 from official ECB statistics, normalized for autonomous-agent use with explicit source timing, evidence and limitations. Purpose: give an agent the latest available euro area m3 with recent official history and source timing 24-hour freshness target; missing evidence is reported explicitly rather than invented.
BasexrplSolana+2edge-agents.aifrom $0.011 endpoint - PPort 402Crypto & DeFi
Store a JSON value under a key in your persistent memory (namespace = your paying wallet).
Basedesktop-klb86tv.tailc3a527.ts.netfrom $0.0021 endpoint - Ccrypto.penguindriver.comCrypto & DeFi
165 涉詐網址比對(付費版)
BaseSolanacrypto.penguindriver.comfrom $0.011 endpoint
YourAITools CreditsCrypto & DeFiPrepaid API credits (sample pack). Prepaid credits for the YourAITools agent APIs: one x402 payment of $0.005 USDC mints an API key holding $0.005 of credits. Send it as Authorization: Bearer <key> to PayGuard, TokenVerdict, SignCheck, WebRead, InjectScan, DomainCheck, PkgGuard, StackDetect or AgentGate paid routes; each call debits its normal price instead of an on-chain payment. Key shown once.
BasePolygonArbitrum+1credits.agentgate.workers.devfrom $0.0051 endpoint
Tanod chainpeekCrypto & DeFichainpeek (Tanod) Solana SPL token mint info: supply, decimals, authorities. Read-only. Use when an agent needs an SPL token mint's supply, decimals and authorities on Solana.
BasePolygonSolana+2chain.tanod.devfrom $0.0021 endpoint- CCanaryGuard 402Crypto & DeFi
Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands before context ingestion.
BaseSolanacanaryguard-402.onrender.comfrom $0.0135 endpoints
Blue HubCrypto & DeFiLive price, mcap, volume and liquidity for any Base token (DexScreener).
Baseblueagent.devfrom $0.011 endpoint- Aarispay-x402-demo-production.up.railway.appCrypto & DeFi
ArisPay x402 Ping — pay $0.01 in USDC on Base to verify your agent payment loop end-to-end (wallet, signing, 402, settlement). Powered by ArisPay; pay it with `npx payagent pay <url>`.
Basearispay-x402-demo-production.up.railway.appfrom $0.011 endpoint - Aapi.x402.printmoneylab.comCrypto & DeFi
Single buyer wallet's 8-label classification with confidence, all services used, and transaction patterns.
BaseSolanaapi.x402.printmoneylab.comfrom $0.0051 endpoint - Aapi.mgo.chain-ops.xyzCrypto & DeFi
Find the cheapest EVM chain before you transact. Compares live gas across Ethereum, Base, Arbitrum & Optimism and returns the cheapest chain with savings % (e.g. "Use Base — saves 99.8% vs Ethereum"). Call this before bridging, deploying, or any tx with chain flexibility. $0.001 USDC, no API key.
Baseapi.mgo.chain-ops.xyzfrom $0.0011 endpoint - Aapi.k8s-dev.blockscout.comCrypto & DeFi
Access to api/v2/transactions. List blockchain transactions with filtering options for status, type, and method
EVM chain 11142220EVM chain 5042002Base Sepoliaapi.k8s-dev.blockscout.comfrom $0.0021 endpoint
Block402Crypto & DeFiBitcoin read-only RPC and supported simulations. Submit method and params as JSON. Method schemas, limits and prices: https://api.block402.xyz/docs/api.md. Obtain a bound quote with a private Idempotency-Key before signing.
Baseapi.block402.xyzfrom $0.00251 endpoint- Aai.fuse.ioCrypto & DeFi
Real-time Fuse payment network statistics — transaction volumes, network health, gas tiers, FUSE token price.
Baseai.fuse.iofrom $0.011 endpoint - AAgent HubCrypto & DeFi
JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agents.torbrooknews.comfrom $0.0011 endpoint
Citiview Agent MarketCrypto & DeFiJSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agents.citiviewgroup.comfrom $0.0021 endpoint
AgentRXICrypto & DeFiJSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agentrxi.comfrom $0.0021 endpoint- yieldprobeCrypto & DeFi
Token contract risk summary (honeypot, taxes, mintable, proxy, owner powers, holder concentration) with a 0-100 risk score. Chains: 1, 56, 137, 42161, 8453, 10, 43114.
Baseyieldprobe.comfrom $0.0025 endpoints - Yyield-cross-chain-apy-scannerCrypto & DeFi
DeFi-Yield Cross-Chain DeFi Yield & Stablecoin APY Radar: Scans risk-adjusted DeFi lending and vault APYs across Base, Arbitrum, Optimism, and Polygon.
Baseyield.agentdiet.devfrom Free1 endpoint - Xx402brokerCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basex402broker.comfrom Free141 endpoints - Ssantyvv-dataCrypto & DeFi
Consensus USD spot price for up to 5 crypto tickers (BTC, ETH, SOL, XRP, ADA, DOGE, AVAX, LINK, DOT, LTC, BCH, UNI, ATOM, NEAR, APT, ARB, OP, SUI, TON, POL). Queries four independent venues (MEXC, OKX, Coinbase and Kraken), returns the median plus min, max and a divergence flag, so a single venue printing a bad price cannot fool the caller. Call it when you need one trustworthy number instead of f
Basex402.santyvv.comfrom $0.0139 endpoints - Xx402.onchainexpat.comCrypto & DeFi
Get Wikipedia article summary
Basex402.onchainexpat.comfrom $0.0143 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.