OneSource
EVM RPC · Ethereum · Sepolia · Robinhood Chain
Blockchain data for AI agents
EVM RPC for AI agents — per-call or batch/session payments.
Every endpoint proxies a single live RPC call — balances, blocks, receipts, events, ENS, contract and NFT introspection — returning fresh data from OneSource-operated nodes. Pay per call or in batch/session mode with USDC on Base via x402, or pathUSD or USDC.e on Tempo via MPP — no API key or account required. Prefer a flat monthly bill, or can't hold a wallet? Subscribe with an API key instead.
Discover
- /openapi.jsonFull OpenAPI 3.1 spec with per-endpoint pricing, input/output schemas, and x-bazaar discovery metadata
- /.well-known/x402x402 discovery fallback document
- /api/pricingFlat list of endpoints and per-call USDC cost
- /api/networksSupported networks (ethereum, sepolia, robinhood) with per-chain characteristics
Try it
Using AgentCash (handles both x402 and MPP):
$
npx agentcash try https://api.onesource.ioOr call directly with @x402/fetch for x402, or mpp-go for MPP — either client handles the 402 payment flow automatically.