Verification record
Agent Payments Protocol (AP2)
Its Sato Hub Sato Score and verification record — how open, active, and verifiable this product is, scored from observed evidence. Not a safety, quality, or returns grade.
Sato Score
72/100· HighHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 20/35
- Code transparency
- 20/20
- Interface verifiability
- 0/10
- Docs & demo
- 10/10
- Listing transparency & provenance
- 14/15
- Independent verification
- 8/10
Independently verified — listing reviewed against evidence, never self-reported.
Anchored
2026-09-20 · 384 listingsThis score was committed to a single Merkle root along with every other score we published that day. The root is signed, published, and archivable by anyone — so if we changed this number tomorrow and said it had always been this, the commitment would contradict us. It proves what we published, not that the score is right.
- Leaf
fd8ba69b2108ef688297892e1e6bc546ace42f8398cba58047209ab4515bc7ab- Preimage
satohub-score-leaf/v1|2026-09-20|agent-payments-protocol-ap2|72|High- Proof
- 8 siblings
- Root
5216b3a5352d78176f3ae7d63b91f40d2be917b01afaf0942fc8dd95f9fe48a9- Root signature
- Ed25519, kid b04bd38b
- On-chain
- not attested on-chain — key absent (ATTEST_PRIVATE_KEY is not set)
Verify this yourself
# one command, no install, no account
npx --yes github:satohubai/sato-hub-skill \
node skills/sato-hub/scripts/verify.mjs --proof agent-payments-protocol-ap2 --date 2026-09-20The tool folds the proof itself and compares the result against the published roots file, not against the proof response — checking a proof only against a root served in the same reply proves nothing. Raw proof: /api/verify/agent-payments-protocol-ap2/proof. Method: the house rules.
Evidence
- ✓Listing reviewed and marked Verified against evidence by Sato Hub.
- ▸Source reviewed ↗
Record
- Last checked
- 2026-09-20
- Last observed activity
- Apr 28, 2026
- Methodology
- Sato Score methodology →
Verification history
A dated, auditable record of every change to this listing's status, verification, and Sato Score.
- Jun 25, 2026Enriched: deployment options, has demo, marketplace notes
- Jun 25, 2026Auto-enriched: tags, supported integrations, creator name, creator profile url
- Jun 19, 2026Sato Hub began tracking this listing
- Jun 16, 2026Edited: deploy spec
Embed this badge
[](https://satohub.ai/verify/agent-payments-protocol-ap2?utm_source=badge&utm_medium=embed)Paste into your README. The badge reflects the live Sato Score and links back to this report. Free to use, no attribution required.
Embed the 90-day history
Live preview[](https://satohub.ai/verify/agent-payments-protocol-ap2/history?utm_source=badge&utm_medium=embed)Paste into your README. The sparkline is the last 90 days of daily Sato Score readings with the 90-day change; days nobody measured are drawn as gaps, never joined across. It links back to the full dated record. Free to use, no attribution required.
Think this score is wrong?
Check it first: every input behind it is published at /api/export/score-inputs.json and the scorer is a verbatim copy of ours, so the arithmetic can be run on your own machine — reproduce this score. If you maintain Agent Payments Protocol (AP2) and still disagree, say so in public: a dispute is published with your evidence beside our answer, whether or not we agree with it.