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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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Crypto & DeFi
6 results
NansenCrypto & DeFiGet Smart Money Holdings Data
SolanaBaseX Layer+2api.nansen.aifrom $0.0160 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
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- loophole tapeCrypto & DeFi
New Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with their calibrated odds; for a one-off screen of the last hour use GET /v1/launches/recent, and for one mint the $0.005 rug check.
SolanaBaseRobinhood Chain+1api.loopholetape.comfrom $0.00127 endpoints - Aapi.messari.ioCrypto & DeFi
Get multi-window ROI snapshots for one or more cryptocurrency assets.
BaseSolanaX Layerapi.messari.iofrom $0.154 endpoints - Pro Yield APICrypto & DeFi
Pro Yield in one call: live stablecoin lending venue rates (safety tiers, blend target, sleeve rates, provenance) plus vault state on HyperEVM — share price, total assets, live caps — and a wallet's position when ?address= is supplied. Use when an agent wants the whole Pro Yield picture for one $0.010 call instead of two.
SolanaBaseArbitrum+5pyd.fifrom $0.013 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.