Visa Trusted Agent Protocol (TAP)
Visa protocol that lets merchants authenticate trusted AI shopping agents via cryptographic signatures, with x402 interoperability into traditional payment r...
- Sato Score38
Visa Trusted Agent Protocol (TAP) is an API or SDK by Visa, with no code activity tracked. Sato Score 38/100 (how open, active and verifiable it is, not a safety grade), as of 2026-10-24. How the score works →
Check what an install would ask of your keys, before you run it →No code activity tracked
Listed from digitaltransactions.net on 2026-06-08. Install: not attempted — no install path on record. Evidence →
Next step
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Prove you control the domain and correct this page — description, links, tags, chains. A claim proves control, not verification: it never changes the Sato Score.
Claim this listing →Overview
Visa's Trusted Agent Protocol (TAP) is an agentic commerce protocol, developed with Cloudflare, that helps merchants distinguish legitimate AI agents from bots and fraudsters using agent-specific cryptographic signatures and additional agent-supplied context. Visa has added x402 support through TAP and is collaborating with Coinbase to make it interoperable with the x402 standard, bridging agent transactions to traditional Visa payment rails.
Sato Score
38/100· LowHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 20/35
- Code transparency
- 0/20
- Interface verifiability
- 0/10
- Docs & demo
- 0/10
- Listing transparency & provenance
- 10/15
- Independent verification
- 8/10
Independently verified — listing reviewed against evidence, never self-reported.
Evidence — listed vs checked · what the words mean
Listed from digitaltransactions.net on 2026-06-08. Install: not attempted — no install path on record.
| Claim | Value | Evidence | Source | Checked |
|---|---|---|---|---|
| Chains supported | not stated | self-reported | digitaltransactions.net | as of 2026-10-24 |
| Verification status | Verifiedreview date and evidence link not recorded on this listing | ✓ reviewed | — | not dated |
| Website answers | answered (HTTP 200) | observed | digitaltransactions.net | 2026-10-24 |
| Daily check record | 53 of 53 daily checks since 2026-09-01 succeededa success rate of our checks, not uptime; the source is this listing's own history | observed | — | 2026-10-23 |
| Built by | Visaconfidence 0.95 | self-reported | digitaltransactions.net | as of 2026-06-14 |
| Works with | x402, Coinbase, Cloudflare, Nuvei, Web Bot Auth, Visa Intelligent Commerce, EMV…confidence 0.80 | self-reported | digitaltransactions.net | as of 2026-06-25 |
| Tags | agentic-payments, visa, x402, agent-authentication, payments, cloudflare, web-b…confidence 0.75 | self-reported | digitaltransactions.net | as of 2026-06-25 |
| Sato Score | 38/100 (Low)how open, active and verifiable — not a safety or quality grade | computed | satohub.ai | 2026-10-24 |
Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.
Observed record — 91 daily checks since 2026-07-26
- Succeeded
- 90
- Failed
- 1
- Their error
- 0
- Unattributed
- 1
State changed on 2026-08-27 (responding → unclear), 2026-08-28 (unclear → responding).
This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden. 37 of these checks predate 2026-09-01, when the probe counted a bot-block (HTTP 403) as a failure and recorded no reason for any failure. The rate above leaves those checks out; the counts include them.
Last 30 days — to 2026-10-24, one point per UTC day
A gap is a day we have no attributable observation — never a zero. Thirty points is the whole shape the free layer carries; the daily rows behind it stay in the snapshot series.
Details
- Chains
- Unknown
- Agent types
- Payment Protocol, Commerce Agent
- Open source
- Unknown
- Works with
- x402, Coinbase, Cloudflare, Nuvei, Web Bot Auth, Visa Intelligent Commerce, EMVCo, OpenID Foundation +1
- Last checked
- 2026-10-24
Marketplace Signals
No marketplace signals recorded for this resource yet.
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Where Visa Trusted Agent Protocol (TAP) fits
Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets, What Are Onchain Agents?
Listing History
Recorded changes to Visa Trusted Agent Protocol (TAP)'s listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Jul 27, 2026Sato Hub began tracking this listing
- Jun 25, 2026Enriched: tags, marketplace notes
- Jun 25, 2026Auto-enriched: supported integrations
- Jun 14, 2026Enriched: creator name
Compared with
Appears in
Related Resources
ERC-8004: Trustless Agents
ActiveEthereum standard providing on-chain identity, reputation, and validation registries for AI agents.
Agent Payments Protocol (AP2)
ActiveOpen protocol from Google for secure agent-led payments across traditional and crypto rails, with a crypto-native x402 extension built with Coinbase, Ethereum Foundation, and MetaMask.
x402
EarlyOpen HTTP 402 payment protocol, now at the x402 Foundation: agents pay per request in stablecoins, and by a newly merged spec, in bitcoin over Lightning.
Reference
QuestionsWhat people ask about this pageShowHide
Questions people ask about Visa Trusted Agent Protocol (TAP)
- Is Visa Trusted Agent Protocol (TAP) open source?
- Unknown. Sato Hub has not found a public repository or a license statement for Visa Trusted Agent Protocol (TAP) as of 2026-10-24.
- Which chains does Visa Trusted Agent Protocol (TAP) support?
- Sato Hub has no confirmed chain list for Visa Trusted Agent Protocol (TAP) as of 2026-10-24; treat chain support as unknown.
- Is Visa Trusted Agent Protocol (TAP) still maintained?
- Sato Hub tracks no commit or release for Visa Trusted Agent Protocol (TAP); it cannot say whether it is maintained.
- How do I install or run Visa Trusted Agent Protocol (TAP)?
- Sato Hub has no deploy spec for Visa Trusted Agent Protocol (TAP); follow the project's own documentation.
- Is Visa Trusted Agent Protocol (TAP) verified on Sato Hub?
- Sato Hub holds one earned check for Visa Trusted Agent Protocol (TAP): Independently verified — listing reviewed against evidence, never self-reported. Its Sato Score is 38 of 100, a measure of how open, active and verifiable the project is, not a safety, quality or returns grade.
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Cite this page
Sato Hub. "Visa Trusted Agent Protocol (TAP) — Sato Hub." Sato Hub, updated 2026-10-24, accessed 2026-10-24. https://satohub.ai/resources/visa-trusted-agent-protocol-tapData last refreshed 2026-10-24; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.
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