acp-checkout-rest SKILL.md skillA
acp-checkout-rest from orcaqubits/agentic-commerce-skills-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add orcaqubits/agentic-commerce-skills-plugins/acp-checkout-rest@git:20260309.786511cPins git:20260309.786511c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- orcaqubits/agentic-commerce-skills-plugins
- Path
acp-agentic-commerce/skills/acp-checkout-rest/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260309.786511c, committed Mar 9, 2026
- Size
- 4,659 bytes
- Repository stars
- 40
- License
- MIT
Implement the ACP REST checkout API — create, update, retrieve, complete, and cancel checkout sessions. Use when building merchant-side checkout endpoints, handling the checkout session state machine, or integrating with AI agent checkout flows.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# ACP Checkout — REST Binding
## Before writing code
**Fetch live docs**:
1. Fetch `https://developers.openai.com/commerce/specs/checkout/` for the canonical checkout specification
2. Web-search `site:github.com agentic-commerce-protocol spec openapi checkout` for the latest OpenAPI YAML
3. Fetch `https://developers.openai.com/commerce/guides/key-concepts/` for data model details
4. Web-search `site:docs.stripe.com agentic-commerce protocol specification` for Stripe's merchant-side reference
## Conceptual Architecture
### Five Checkout Operations
| Operation | Method | Path | Success |
|-----------|--------|------|---------|
| Create | POST | `/checkout_sessions` | 201 |
| Update | POST | `/checkout_sessions/{id}` | 200 |
| Retrieve | GET | `/checkout_sessions/{id}` | 200 |
| Complete | POST | `/checkout_sessions/{id}/complete` | 200 |
| Cancel | POST | `/checkout_sessions/{id}/cancel` | 200 |
### Session State Machine
```
not_ready_for_payment → ready_for_payment → completed
| | |
+──────────────────────+→ canceled ←────+
|
in_progress
…Read the whole file at its exact version.
How to install
mdr add orcaqubits/agentic-commerce-skills-plugins/acp-checkout-rest@sha256:539ebfef0e8d38a0The line at the top of this page pins the label git:20260309.786511c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_i34awjdotaxq55bh)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 9, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4659 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
orcaqubits/agentic-commerce-skills-plugins · 40 stars · license MIT · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_i34awjdotaxq55bh GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/acp-checkout-rest GET https://markdownregistry.com/api/v1/blob/539ebfef0e8d38a0db04c2d8b8c04e11a294706d65870c052487bb71b8e3add9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.