# percall — Arc agent data (pay per call)

> Keyless Arc mainnet (chainId 5042) JSON-RPC + early-chain data endpoints for AI agents. Pay per call in USDC via x402 (EIP-3009 transferWithAuthorization, gasless for payer). No API key, no account. Endpoints: /arc (JSON-RPC, 0.002-0.005 USDC/call by tier), /deployments (new contract feed), /alerts (address flow delta feed), /audit (token hygiene report), /whales (flow ranking), /wallet-report, /token-report. Free tier: 50 calls/day per wallet via X-From header.

- **Domain**: `api.percall.io`
- **Provider**: api.percall.io (https://api.percall.io)
- **Kind**: paid_api
- **Category**: blockchain
- **Live-responds (last probe)**: None
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 65%
- **Payment protocol**: x402 · ≥ $0.003

## URLs
- Agent card: https://api.percall.io
- Page (HTML): https://agenstry.com/agents/api.percall.io
- Documentation: https://api.percall.io