x402 (Coinbase protocol)

x402.org · Agent-Commerce Infrastructure modeIntegrated

Last probed 2026-08-16 17:31 UTC · Verified (Probed)

x402 (Coinbase protocol) — Open HTTP-402 stablecoin micropayment standard for API/agent payments.

86 / 100Interrupt Score(range 86–86 · 0 properties unassessed)How much automated use this service interrupts — the badge-driving metric. Unassessed properties are provisionally scored at 50%; evidence-graded successes at 25%.

Custody / RiskNon-custodial

ConfidenceVerified (Probed)

Verdict: Partially — an AI agent can use x402 (Coinbase protocol), but activate is blocked — Identity / KYC verification is required at signup.

DiscoverNot assessed
ActivateBlocked
OperateEasygated by Activate
ManageNot assessedgated by Activate

Capability parity

Each stage answers one question about what an agent can do unattended. Stages are ordered by the credential-gateway dependency: Activate issues the keys that unlock Operate and Manage.

Discover

Can an agent find and read it, no account?

Not assessed

Be found by a retrieval agentNot assessed
Read what it does and how to use itNot assessed
Read pricing & limits without loginNot assessed

Activate

Can an agent sign up and walk away with the keys it needs?

Blocked

Create an account self-serveBlocked
Identity / KYC verification is required at signup.
Identity / KYC verification blocks this.
Evidence
Path tried
signup flow
Where it stalled
verification step
Evidence tier
Tier 1 (unauth probe)
Verification
Evidence-only — graded from passive signal, not live-verified.
- Identity / KYC verificationAccount verification (KYC / OTP)Acquiring USDC via an on-ramp requires KYC (documents, wait period).
Obtain an API / MCP access credentialNot assessed
Obtain a management / admin keyNot assessed
Accept the terms without a bot-banEasy
No bot-prohibition signal found.
Evidence
Path tried
ToS / policy scan
Where it stalled
completed
Evidence tier
Tier 0 (passive scan)
Verification
Evidence-only — graded from passive signal, not live-verified.

Operate

Can an agent do the service's actual jobs — call, transact, pay?

Easy

Gated by Activate — the credential this stage needs isn't issued unattended, so these rows may be unreachable even where they read Easy.

Call the primary service over MCP / APIEasy
Verified by a live call.
Gated by Activate — the credential this needs isn't issued unattended.
Evidence
Path tried
API / MCP / browser
Where it stalled
completed
Evidence tier
Tier 2 (live attempt)
Verification
Verified — a live attempt completed.
Complete a transaction / checkoutNot applicable
Integrated tool — the API call is the transaction, no separate checkout.
Gated by Activate — the credential this needs isn't issued unattended.
Pay via an agent rail (x402 / ACP / AP2)Not assessed
Gated by Activate — the credential this needs isn't issued unattended.

Manage

Can an agent administer the account and provision resources?

Not assessed

Gated by Activate — the credential this stage needs isn't issued unattended, so these rows may be unreachable even where they read Easy.

Provision / scale / tear down a serviceNot assessed
Gated by Activate — the credential this needs isn't issued unattended.
Change account details / set budget / rotate keysNot assessed
Gated by Activate — the credential this needs isn't issued unattended.
View usage & billingNot assessed
Gated by Activate — the credential this needs isn't issued unattended.
Cancel / export / delete (offboard)Not assessed
Gated by Activate — the credential this needs isn't issued unattended.

Findings

How scoring works →

Interrupt tier: Low-Interrupt — derived from 2 findings; interrupt score 86 / 100 — the badge-driving metric. (range 85.6–85.6 · 0 unassessed)

Every tool starts at 100. Each interrupt found subtracts a penalty of base weight × timing × hardness × evidence — the multiplier values below come from the same rubric tables the score is computed with. New snapshots also provisionally subtract 50% of the full worst-case tax for each unassessed property and 25% for evidence-graded successes not live-verified by Tier 2.

Property coverage

A check only counts as clean when a probe tier capable of detecting that interrupt actually ran and found nothing. Not tested ≠ clean.

Property	Stage	State	Evidence	Required
Identity / KYC verification	activate	failed	Active finding — itemized in the penalty matrix below. Tier 2 assesses this property.	no
Crypto wallet / key-custody setup	operate	failed	Active finding — itemized in the penalty matrix below. Tier 2 assesses this property.	no
CAPTCHA / bot-challenge	activate	success	None found — checked at Tier 1 (unauth probe) + Tier 2 (live attempt) Tier 0 assesses this property.	no
Email OTP verification	activate	success	None found — checked at Tier 1 (unauth probe) + Tier 2 (live attempt) Tier 1 assesses this property.	no
SMS / phone OTP verification	activate	success	None found — checked at Tier 1 (unauth probe) + Tier 2 (live attempt) Tier 1 assesses this property.	no
Mandatory phone verification call	activate	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
Mailed physical code (postal)	activate	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
“Contact sales” wall (no self-serve path)	activate	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
Manual approval queue	activate	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
ToS clause banning automated/bot access	discover	success	None found — recorded clean by an earlier probe; the assessing tier did not run in the latest probe. Tier 0 assesses this property.	no
Mandatory redirect to vendor’s own site	operate	success	None found — checked at Tier 1 (unauth probe) + Tier 2 (live attempt) Tier 1 assesses this property.	no
SSO-only signup, no API-key issuance	activate	success	None found — checked at Tier 1 (unauth probe) Tier 1 assesses this property.	no
Rate-limit-triggered manual review	manage	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
One-time account / payment-method provisioning	manage	success	None found — checked at Tier 2 (live attempt) Tier 2 assesses this property.	no
No Machine Interface	operate	success	None found — checked at Tier 1 (unauth probe) Tier 1 assesses this property.	yes

Interrupt found	Base weight	× Timing	× Hardness	× Evidence	= Penalty
Starting score					100
Identity / KYC verificationAccount verification (KYC / OTP)Acquiring USDC via an on-ramp requires KYC (documents, wait period).	6	×1one-time setup	×2.5hard	×0.8Tier 1 (unauth probe)	−12
Crypto wallet / key-custody setupPayment setupPrivate key generation/custody setup for the wallet.	3	×1one-time setup	×1soft	×0.8Tier 1 (unauth probe)	−2.4
Total penalty					−14.4
Raw score = 100 − 14.4 = 85.6 Point score = 85.6 − 50% × 0 − 25% × 0 = 85.6 → 86					86

What would make this Easy

One concrete change per blocker found. These are the diffs between this listing's current parity and an unattended agent path.

Operate — Crypto wallet / key-custody setupAccept card or an agent-rail payment (x402 / ACP) as an alternative to wallet custody.
Activate — Identity / KYC verificationOffer a self-serve tier without identity verification, gated by rate limits instead.

How we scored this

Confidence: Verified (Probed) (0.95) — A live Tier-2 agent session completed the flow end to end.
Machine-Readability sub-score: 92 / 100 (a separate integration-ease signal — it never enters the Interrupt Score or badge).
Some capability stages are not yet assessed — shown plainly in the spine above, never as a pass.
Rubric, tiers, confidence model, and badge thresholds →

Machine-readability checks not yet recorded

Four check groups, equal weight: machine interfaces, browsing efficiency, element discoverability, and discovery/agent access. Each check carries an evidence grade (proven / plausible / emerging) — an honesty label that never weights the score. What these mean →

No per-check breakdown recorded for this listing.

Evidence & history

Last probed 2026-08-16 17:31 UTC. The raw JSON is the archival record.

This is the first assessment on record.

Date	Score	Badge	Rubric version
2026-08-16 17:31 UTC	86	Low-Interrupt (current)	[email protected]

Alternatives in Agent-Commerce Infrastructure

Other Agent-Commerce Infrastructure tools in the same mode (integrated), ranked by Overall LLM-Friendliness (the mean of Interrupt Score and Machine-Readability) — comparable to this listing because they share its usage mode.

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