MCP Ap2

Name: MCP Ap2
Author: codespar

by codesparversion 0.2.0-alpha.4i★ –iRuns on your computer

Registry nameio.github.codespar/mcp-ap2

Install

Overview

Description from the maker (original English)

DEPRECATED: no live endpoint (AP2 is a spec; ap2.googleapis.com serves no API)

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: AP2_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: AP2_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "ap2": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-ap2"
      ],
      "env": {
        "AP2_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add ap2 --env AP2_API_KEY=your-value -- npx -y @codespar/mcp-ap2

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "ap2": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-ap2"
      ],
      "env": {
        "AP2_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "ap2": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-ap2"
      ],
      "env": {
        "AP2_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

AP2_API_KEY secret required env
API key for ap2

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account codespar, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32464 servers in this category
Published to the registry more recently than 50% of the other 32464 servers in this category
Basic checks equal to or better than 100% of the other 32464 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP Ap2 safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: AP2_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.0-alpha.4) reached the registry 40 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, yontu

Alternatives

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@codespar/mcp-ap2

Deprecated: no live endpoint. Measured on 2026-09-27: ap2.googleapis.com answers every path with Google's generic Error 404 (Not Found) page, and sandbox.ap2.googleapis.com (used with AP2_SANDBOX=true) fails the TLS handshake, because the certificate served there covers *.googleapis.com and not the extra label. AP2 is an open specification, not an API Google hosts. No tool in this server reaches a service. The package is deprecated on npm and stays in this repository for reference only. If you have a working endpoint, point the server at it with AP2_BASE_URL. To bring the package back, open an issue in mcp-dev-latam with the provider's documented base URL.

Alpha release — published under the alpha npm dist-tag. Pin exact versions during 0.x.x-alpha. Install with npm install @alpha.

MCP server for AP2 — Google's Agent-to-Agent Payment Protocol (authorization, audit, and trust for agentic payments)

What is AP2?

AP2 (Agent-to-Agent Payment Protocol) is Google's open framework for authorization, audit, and trust in agentic payments. It answers the critical questions: *Who authorized this payment? What limits apply? What's the full audit trail?*

The specification is published at ap2-protocol.org.

Quick Start

Claude Desktop

Add to ~/.config/claude/claude_desktop_config.json:

"mcpServers": { "ap2": { "command": "npx", "args": ["-y", "@codespar/mcp-ap2"], "env": { "AP2_API_KEY": "your-key", "AP2_AGENT_ID": "your-agent-id" } } } }

Claude Code

claude mcp add ap2 -- npx @codespar/mcp-ap2

Cursor / VS Code

Add to .cursor/mcp.json or .vscode/mcp.json:

"servers": { "ap2": { "command": "npx", "args": ["-y", "@codespar/mcp-ap2"], "env": { "AP2_API_KEY": "your-key", "AP2_AGENT_ID": "your-agent-id" } } } }

Tools (22)

Tool	Purpose
`register_agent`	Register an AI agent as a trusted payer in the AP2 network.
`get_agent`	Get agent registration details, trust status, and current spend usage
`list_agents`	List registered agents with optional filters
`revoke_agent`	Revoke an agent's payment authorization.
`authorize_payment`	Request payment authorization with scoped limits.
`get_authorization`	Get authorization details including status, limits, and expiry
`list_authorizations`	List payment authorizations with optional filters
`execute_payment`	Execute an authorized payment.
`get_audit_trail`	Get the complete audit trail for a transaction — every authorization, approval, execution, and settlement e..
`list_audit_events`	List audit events across all transactions with filters
`list_payment_methods`	List payment methods offered by the AP2 partner network
`get_transaction`	Get full transaction details including authorization, execution, and settlement status
`list_transactions`	List transactions with optional filters
`create_intent_mandate`	Create an AP2 intent mandate — a Verifiable Credential expressing the user's intent to delegate a transacti..
`create_cart_mandate`	Create an AP2 cart mandate — a signed, locked-cart commitment from a merchant binding line items, totals, a..
`create_payment_mandate`	Create an AP2 payment mandate — the final Verifiable Credential authorizing settlement against a cart mandate.
`verify_credential`	Verify a Verifiable Credential (intent, cart, or payment mandate).
`create_presentation`	Create a Verifiable Presentation bundling one or more credentials (e.g.
`verify_presentation`	Verify a Verifiable Presentation and all embedded credentials, including holder binding and challenge nonce.
`resolve_did`	Resolve a Decentralized Identifier (DID) to its DID document via the AP2 universal resolver.
`create_receipt`	Create a signed receipt for a settled payment — a tamper-evident record linking transaction, mandates, and..
`verify_receipt`	Verify a receipt's signature, issuer, and chain back to the originating mandates.

Authentication

The server sends AP2_API_KEY as an Authorization: Bearer header and AP2_AGENT_ID as an X-Agent-Id header on every request (src/index.ts:69-73).

There is no portal issuing those credentials. The developer portal this README used to link, developers.google.com/ap2, answers HTTP 404, as does the ap2-spec repository it pointed at. The published specification is at ap2-protocol.org.

Environment Variables

Variable	Required	Description
`AP2_API_KEY`	Yes	Sent as `Authorization: Bearer`
`AP2_AGENT_ID`	Yes	Sent as the `X-Agent-Id` header
`AP2_SANDBOX`	No	`true` switches `BASE_URL` to `https://sandbox.ap2.googleapis.com/v1`, which fails TLS

Use Cases

Authorized agent purchases — Agent requests spend authorization, gets approval with limits, then executes payment
Multi-agent commerce — Agent A authorizes Agent B to make payments on its behalf with scoped limits
Compliance & audit — Full audit trail of every authorization, approval, execution, and settlement
Cross-rail payments — AP2 bridges card payments, bank transfers, wallets, and x402 micropayments

Roadmap

v0.2 (planned)

create_policy — Define reusable authorization policies
delegate_authority — Allow agent-to-agent authorization delegation
get_spend_report — Get spend analytics and reports
OAuth 2.0 authentication flow

v0.3 (planned)

Webhook support for real-time authorization events
Multi-currency support with automatic FX
Integration with x402 as payment method

Want to contribute? Open a PR or request a tool.

Enterprise

Need governance, budget limits, and audit trails for agent payments? CodeSpar Enterprise adds policy engine, payment routing, and compliance templates on top of these MCP servers.

License

MIT

MCP Ap2

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

yontu

README from the maker

@codespar/mcp-ap2

What is AP2?

Quick Start

Claude Desktop

Claude Code

Cursor / VS Code

Tools (22)

Authentication

Environment Variables

Use Cases

Roadmap

v0.2 (planned)

v0.3 (planned)

Links

Enterprise

License