# TestRaptor — Pay-per-call APIs for AI agents

> Pay-per-call AI APIs over x402 (USDC on Solana, gas sponsored): TLS certificate
> checks, uptime monitoring, and web page screenshots. No account, no API key,
> no subscription. Unauthenticated agents receive HTTP 402.

## Paid endpoints (x402)

- [Check a TLS certificate](https://testraptor.com/certs/v1/certs/check-now): POST /certs/v1/certs/check-now — $0.002 per call. Body: {"domain":"example.com"}.
- [Create an uptime monitor](https://testraptor.com/heartbeat/v1/heartbeat/monitors): POST /heartbeat/v1/heartbeat/monitors — $0.003 per call. Requires a connected TestRaptor account.
- [Launch page captures](https://testraptor.com/pixeldrift/api/captures/lancer): POST /pixeldrift/api/captures/lancer — $0.005 per call. Body: {"urlIds":[1],"formats":["desktop"]}.
- [Buy a prepaid bundle](https://testraptor.com/v1/bundle/check): POST /v1/bundle/check — $0.008 per call. Returns an X402-Credit token.
- [Top up prepaid credit](https://testraptor.com/v1/credit/topup): POST /v1/credit/topup — free amount (min $0.008). Returns an X402-Credit token.

## How to pay (x402)

- Chain: Solana mainnet (CAIP-2 solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp).
- Asset: USDC (mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v).
- Scheme: "exact". Gas is sponsored by the facilitator (Dexter) — the payer only needs USDC, not SOL.
- Facilitator: https://x402.dexter.cash
- Unauthenticated requests receive HTTP 402 with a "PAYMENT-REQUIRED" header.

## MCP server

- [TestRaptor x402 MCP](https://www.npmjs.com/package/testraptor-x402-mcp): stdio MCP server exposing the 5 tools above. Run with: npx -y testraptor-x402-mcp

## Notes

- Humans (browsers, logged-in sessions) are served free; only AI agents are charged.
- Machine-readable endpoint details: https://testraptor.com/.well-known/x402