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/tools · verified 2026-05-14

XMR402

B

Open standard for HTTP 402 payments — Monero-paid, agent-friendly, no signup.

At a glance

Grade
B ()
KYC posture
no kyc
Fees
Spec / reference impl — free. Servers set their own price per resource.
Last verified
2026-05-14
Operating since
2026 · 0y
B Why grade B?

Solid pick. Verified working but with a meaningful caveat (UX rough, smaller market, intermediate trust step, partial coverage). Listed because the trade-off is sometimes worth it.

Full rubric + 7-step verification walkthrough at /methodology.

Review

Open spec for resurrecting the HTTP 402 status code as a real payment rail — XMR-first, with provisions for Lightning. Designed for the agentic web: machine-to-machine micropayments that need zero signup and minimal latency. Operator-disclosed: the curator runs this; the protocol itself is permissionless and the spec is open, but read /transparency for context before relying on it for production billing.

Fees

Spec / reference impl — free. Servers set their own price per resource.

Links

Audit trail — receipts for the editorial claim

  • UPSTREAM Up · HTTP 200 · 148ms · checked 14h ago
  • ONION No .onion mirror listed
  • MANUAL Last manual verification 2026-05-14 (<90d)

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