ChatGPT Instant Checkout / OpenAI ACP

openai.com · Agent-Commerce Infrastructure modeIntegrated

Last probed 2026-09-08 04:41 UTC · Verified (Documented)

ChatGPT Instant Checkout / OpenAI ACP — In-chat shopping that hands off to the merchant's own checkout to complete purchase.

60 / 100Interrupt Score(range 48–73 · 14 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 / RiskNot applicable
ConfidenceVerified (Documented)

Verdict: Activate is only partly probed. Discover, operate, and manage aren't probed yet.

  1. DiscoverNot yet probed
  2. ActivateIncomplete
  3. OperateNot yet probed
  4. ManageNot yet probed

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. A row marked “Not yet probed” means no probe has tried that capability yet — a different ledger from the “unassessed” properties under Findings, where no probe tier capable of catching that interrupt has run.

Discover

Can an agent find and read it, no account?

Not yet probed

No probe has attempted this stage yet: Be found by a retrieval agent; Read what it does and how to use it; Read pricing & limits without login.

  • Be found by a retrieval agentNot yet probed

    Retrieval access not confirmed - no robots/sitemap/discovery check passed.

  • Read what it does and how to use itNot yet probed

    No machine-readable docs found - llms.txt, AGENTS.md, and schema.org checks all failed or are absent.

  • Read pricing & limits without loginNot yet probed

    Public pricing was not confirmed - the page was absent, gated, or unreadable.

Activate

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

Incomplete

Assessment incomplete - not yet probed: Create an account self-serve; Obtain an API / MCP access credential; Obtain a management / admin key.

  • Create an account self-serveNot yet probed

    Signup flow not yet inspected (Tier 1 has not run).

  • Obtain an API / MCP access credentialNot yet probed

    No self-serve credential signal detected - key issuance not yet probed.

  • Obtain a management / admin keyNot yet probed

    No scoped or administrative key path was confirmed after activation.

  • 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?

Not yet probed

No probe has attempted this stage yet: Call the primary service over MCP / API; Pay via an agent rail (x402 / ACP / AP2).

  • Call the primary service over MCP / APINot yet probed

    No machine interface found by passive checks, and no live Tier-2 call attempted.

  • Complete a transaction / checkoutNot applicable

    Integrated tool — the API call is the transaction, no separate checkout.

  • Pay via an agent rail (x402 / ACP / AP2)Not yet probed

    No agent-payment metadata detected - payment rails not yet probed.

Manage

Can an agent administer the account and provision resources?

Not yet probed

No probe has attempted this stage yet: Provision / scale / tear down a service; Change account details / set budget / rotate keys; View usage & billing; Cancel / export / delete (offboard).

  • Provision / scale / tear down a serviceNot yet probed

    Not probed - provisioning is not part of the probe suite yet.

  • Change account details / set budget / rotate keysNot yet probed

    Not probed - account admin is not part of the probe suite yet.

  • View usage & billingNot yet probed

    Authenticated usage and billing access was not confirmed.

  • Cancel / export / delete (offboard)Not yet probed

    No self-serve cancellation, export, or deletion path was confirmed.

Interrupt tier: Moderate-Interrupt — derived from 1 finding; interrupt score 60 / 100 — the badge-driving metric. (range 47.8–72.8 · 14 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.

PropertyStageStateEvidenceRequired
Mandatory redirect to vendor’s own siteoperate failedActive finding — itemized in the penalty matrix below. Tier 1 assesses this property.no
CAPTCHA / bot-challengeactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 0 assesses this property.no
Email OTP verificationactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 1 assesses this property.no
SMS / phone OTP verificationactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 1 assesses this property.no
Mandatory phone verification callactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
Mailed physical code (postal)activate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
“Contact sales” wall (no self-serve path)activate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
Manual approval queueactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
ToS clause banning automated/bot accessdiscover unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 0 assesses this property.no
SSO-only signup, no API-key issuanceactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 1 assesses this property.no
Rate-limit-triggered manual reviewmanage unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
One-time account / payment-method provisioningmanage unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
Identity / KYC verificationactivate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
Crypto wallet / key-custody setupoperate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 2 assesses this property.no
No Machine Interfaceoperate unassessedNo probe tier that can detect this has run yet — unknown, not clean. Tier 1 assesses this property.yes
Interrupt foundBase weight× Timing× Hardness× Evidence= Penalty
Starting score100
Mandatory redirect to vendor’s own siteEvery transactionEvery purchase hands off to the merchant's own checkout page to complete (publicly documented product behavior, post-rollback Instant Checkout / Agentic Commerce Protocol model).4×8every transaction×1soft×0.8Documented−27.2
Total penalty−27.2
Full unknown tax 253.2 — capped at 25 (point score uses 50% of the capped value)−253.2
Raw score = 100 − 27.2 = 72.8
Point score = 72.8 − 50% × 25 − 25% × 0 = 60.3 → 60
60

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.

How we scored this

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 2026-09-08 04:41 UTC. The raw JSON is the archival record.

This is the first assessment on record.

DateScoreBadgeRubric version
2026-09-08 04:41 UTC60Moderate-Interrupt (current)rubric v2026.4

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.

Embed this rating

Copy this snippet to display your Interrupt Index seal on your site — the seal image and link stay in sync with your latest probe automatically. Pick the variant that matches your site’s theme.

Light (default)

<a href="https://interruptindex.com/tools/chatgpt-instant-checkout-openai-acp"><img src="https://interruptindex.com/badge/chatgpt-instant-checkout-openai-acp.svg" alt="ChatGPT Instant Checkout / OpenAI ACP — Interrupt Index agent-readiness rating" height="64"></a>

Dark

<a href="https://interruptindex.com/tools/chatgpt-instant-checkout-openai-acp"><img src="https://interruptindex.com/badge/chatgpt-instant-checkout-openai-acp.svg?theme=dark" alt="ChatGPT Instant Checkout / OpenAI ACP — Interrupt Index agent-readiness rating" height="64"></a>