ap2-payment-processor SKILL.md skillA
ap2-payment-processor 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/ap2-payment-processor@git:20260914.08f85a3Pins git:20260914.08f85a3 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
ap2-agentic-payments/skills/ap2-payment-processor/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260914.08f85a3, committed Sep 14, 2026
- First version recorded
- Mar 9, 2026
- Size
- 4,362 bytes
- Repository stars
- 40
- License
- MIT
Build an AP2 Merchant Payment Processor — the agent that constructs payment authorization messages, requests credentials from the Credentials Provider, processes payments, and returns receipts. Use when implementing the MPP role.
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
# AP2 Merchant Payment Processor Implementation
## Before writing code
**Fetch live docs**:
1. Fetch `https://ap2-protocol.org/ap2/specification/` for Payment Processor responsibilities
2. Web-search `site:github.com google-agentic-commerce AP2 samples roles merchant_payment_processor` for reference implementation
3. Web-search `site:github.com google-agentic-commerce AP2 payment processor authorization` for authorization flow
4. Fetch `https://ap2-protocol.org/overview/` for MPP role details
## Conceptual Architecture
### What the Payment Processor Does
The Merchant Payment Processor (MPP) **handles the financial side** of the transaction on behalf of the merchant:
1. **Receives payment requests** from the Merchant Agent
2. **Requests credentials** from the Credentials Provider using the Payment Mandate
3. **Constructs authorization messages** for the payment network
4. **Processes the payment** through the network/issuer
5. **Handles challenges** (3DS2, OTP) when required
6. **Returns receipts** to the Merchant Agent
### Where It Sits in the Flow
```
Shopping Agent → Merchant Agent → MPP → Credentials Provider
↓
…Read the whole file at its exact version.
How to install
mdr add orcaqubits/agentic-commerce-skills-plugins/ap2-payment-processor@sha256:f05b7383c246d231The line at the top of this page pins the label git:20260914.08f85a3, 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_4nz57agt7avyazwh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Mar 9, 2026 and Sep 14, 2026, about one every 189 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.08f85a3 latest | 2026-09-14 | 08f85a3 | 4,362 B | A | view · diff |
| git:20260309.786511c | 2026-03-09 | 786511c | 4,307 B | A | view |
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 (4362 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_4nz57agt7avyazwh GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/ap2-payment-processor GET https://markdownregistry.com/api/v1/blob/f05b7383c246d23189d98d6280f92c043951109b1ca57dc37281dda78f5f4844
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.