Feeless402

Price any x402 (HTTP 402 Payment Required) API across payment rails and see what the same call costs on each — live, from the server's own quote. Gas rails floor micro-prices at ~$0.001; the feeless Nano (XNO) rail quotes the true metered amount, so sub-millicent calls cost sub-millicents. **Tools:** `x402_quote` · `x402_compare` · `faucet_info` · `get_started` This hosted endpoint is read-only and holds no wallet — nothing to steal, nothing to spend. For the full self-custodied experience (pay per call, earn as a merchant, claim free starter XNO from the faucet): pip install feeless402 claude mcp add feeless402 -- uvx feeless402 mcp Docs: [feeless402.com](https://feeless402.com) · Spec: [railhint.com](https://railhint.com) · Official MCP registry: `com.feeless402/nano-pay`

First seen 2 Oct 2026. Evidence as of 5 Oct 2026.