Grade your endpoint.
Get the exact fix.
A free scan across the 9 checks that decide whether an agent can pay you — each failure comes back with the exact snippet to paste, not just a red X. No signup. This is a point-in-time result, not a live guarantee.
Not building — just deciding whether to pay one? Browse the live board →
Ship it, then keep it honest: one JSON call returns the conformance grade with every fix, plus availability and payout signals. No key.
The recommendation field describes spec conformance only — never advice to transact. Disclosures →
Paste a URL, get the grade
Grade → fix → ship
Fix, with code
Nine spec-conformance checks, including reachable with no bot-wall, a valid 402 challenge, recognized x402Version, complete accepts[] fields, CAIP-2 network, published input schema, and a discovery doc that lists the resource. Each failure comes back with the exact snippet to paste, not just a red X.
A badge to share
Passing? Grab a badge for your README — it re-checks your endpoint periodically, so it always shows your current grade. Free, no strings.
Kept in view
Scored endpoints ride along in continuous monitoring — availability, on-chain payout signal, and a spot on the public board. All free.
Pricing
- All 9 spec-normative checks, every time
- The exact fix snippet for every failure, not just a red X
- A live grade badge for your README — shows your current free-scan grade, re-checked on every view
- Continuous monitoring once you're scored
- No signup
- No fee
- Everything in Free, plus a settlement-completeness check and a multi-resource sweep of every other resource your discovery doc lists
- The full report, every finding, delivered
- Grade A earns a permanent, badged row on the Verified registry
- Below A: the full report and a Re-verify path ($29) instead of a listed row
Delivered digital products are non-refundable — refund policy.
Payment cannot change or remove a grade. No fee, ad purchase, or accreditation relationship of any kind affects any score, free or paid.
Every grade is our opinion, dated and versioned (check version conformance-v2-2026-07-31) — not an endorsement or a warranty. How we grade & full disclosures →
The x402 board
Live conformance + on-chain payout signals. The conf column shows how much monitoring history backs each score; new means reliability is still accumulating. Just deciding whom to pay? This is your board.
Top 10 of this board shown here. Also see the Doctor Scan leaderboard — free automated scans of third-party endpoints, a separate board with a free re-check link on each row.