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Pink Agentic AI Payments (sandbox)

@pinkwalletRun by its publisher: served from their own domain, namespace checked by the registry.MCP server · External

Approval layer for AI agent payments: budgets, rules, human approval. Sandbox, test credentials.

Agent paymentsv0.1.2MITTypeScript
Freeno charge per call

One address for any MCP client. You sign in at agentic-sandbox.pinkwallet.com once, after adding it.

What it does

  1. Reads
  2. Writes
  3. High impact

At most: moves money, runs code or commands, deletes data, or sends messages for you.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

What it asks for at sign-in

Access toReadChange
PaymentsNot stated: payments

From the sign-in at agentic-sandbox.pinkwallet.com, as the endpoint publishes it. You approve it there.

Tools

None listed · checked 12 Oct 2026

Odel could not list its tools without signing in.

Try it in the Inspector
README3 min read

pink-agentic-payments-mcp

Pink Agentic AI Payments checks every payment an agent requests against company spending rules (budgets, payee allow-lists, human approval) before any payment credential is issued.

This package is a local stdio MCP server that bridges any MCP client (Claude Desktop, Cursor, VS Code, Windsurf, n8n's MCP client, and others) to Pink's remote Streamable HTTP MCP server. It forwards tools/list and tools/call (and resources/prompts, if the remote adds them) transparently, so the local server always reflects whatever tools Pink's remote server currently exposes — nothing is hardcoded.

Sandbox preview: test money only, no signup required to get a key.

Quick start

1. Get a free sandbox agent key

No signup needed. Either run:

bash
npx -y pink-agentic-payments-mcp --create-sandbox

which creates a sandbox workspace and prints a ready-to-paste client config, or create one yourself:

bash
curl -s -X POST https://agentic-sandbox.pinkwallet.com/v1/sandbox/workspaces

and take any agents[].key from the response.

2. Add it to your MCP client

Claude Desktop (claude_desktop_config.json), Cursor, Windsurf, and most other stdio-based MCP clients:

json
{
  "mcpServers": {
    "pink": {
      "command": "npx",
      "args": ["-y", "pink-agentic-payments-mcp"],
      "env": { "PINK_AGENT_API_KEY": "pk_sandbox_agent_..." }
    }
  }
}

VS Code (.vscode/mcp.json):

json
{
  "servers": {
    "pink": {
      "command": "npx",
      "args": ["-y", "pink-agentic-payments-mcp"],
      "env": { "PINK_AGENT_API_KEY": "${input:pink_agent_key}" }
    }
  }
}

Env vars:

  • PINK_AGENT_API_KEY (required) — your agent key from a sandbox workspace.
  • PINK_MCP_URL (optional) — defaults to https://agentic-sandbox.pinkwallet.com/mcp.

Tools

These are live from the remote server's tools/list response (see TEST-OUTPUT.txt for the full run):

ToolWhat it does
pink.get_budgetWhat this agent may still spend: monthly budget left, spent today, single-payment cap, vault balances, company daily ceiling.
pink.list_payeesSuppliers, platforms and contractors this company has approved. Paying anyone else stops and asks a person.
pink.list_rulesThe policy rules that apply to this agent, in evaluation order. First match decides: allow, ask, or block.
pink.check_policyDry run. Returns would_allow / would_ask / would_block with the rule and full decision trace. Nothing is spent or held.
pink.request_paymentThe real call. Returns allowed with a single-use credential, pending_human with a hold_id while a person is asked, or blocked with the reason.
pink.get_credentialPoll a pending hold. Once a person approves, this returns the credential.
pink.report_receiptFile the receipt for a completed payment so it reconciles.

How this was tested

TEST-OUTPUT.txt in this repo is the full, unedited output of three real runs against a live sandbox workspace (test money only):

  1. The built server (dist/bin.js) driven over stdio by an MCP SDK test client — tools/list plus pink.request_payment calls that returned real allowed (with an issued sandbox credential), blocked (over monthly budget), and pending_human (new-payee approval) decisions.
  2. The official MCP Inspector CLI (npx @modelcontextprotocol/inspector --cli) run headless against the same built server.
  3. The same stdio test run again from a packed tarball (npm pack then npx -y ./pink-agentic-payments-mcp-0.1.0.tgz) in a clean directory, to prove the npx install path works end to end.

Status

Sandbox preview (test money only). Published on npm as pink-agentic-payments-mcp — npx -y pink-agentic-payments-mcp is all you need, no clone or build step required.

License

MIT

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