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Crinkl Commerce MCP MCP server

Official MCP server providing verified commerce data, privacy-thresholded signals, and proof-backed shopper activation tools. It allows agents to query cumulative and daily GMV, resolve merchant categories, verify cryptographic proofs of purchase, and submit DKIM-verified billing receipts to earn rewards.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Crinkl
MCP endpoint (Streamable HTTP)
https://mcp.crinkl.xyz/mcp
Vendor documentation

What you can do with it

  • Query cumulative and daily verified spend volume (GMV)
  • Verify cryptographic integrity of reward commitments
  • Submit DKIM-verified billing emails to earn rewards
  • Resolve CBSA codes to metro area names
Tools advertised by the last live check:
  • get-protocol-summary
  • get-cumulative-gmv
  • get-daily-gmv
  • get-trailing-gmv
  • get-spend-signals
  • resolve-cbsa
  • get-merchant-summary
  • get-spend-distribution
  • get-settlement-summary
  • get-gmv-inclusion-proof
  • verify-reward-commitment
  • verify-issued-gmv
  • get-recent-issued-proofs
  • get-issuer-keys
  • get-reward-policy
  • get-agent-capabilities
  • get-vendors
  • pair-agent
  • claim-api-key
  • verify-receipt
  • submit-receipt
  • get-agent-me

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http crinkl-commerce-mcp https://mcp.crinkl.xyz/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add crinkl-commerce-mcp --url https://mcp.crinkl.xyz/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable crinkl-commerce-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "crinkl-commerce-mcp": {
      "url": "https://mcp.crinkl.xyz/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "crinkl-commerce-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.crinkl.xyz/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start crinkl-commerce-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "crinkl-commerce-mcp": {
      "type": "http",
      "url": "https://mcp.crinkl.xyz/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http crinkl-commerce-mcp https://mcp.crinkl.xyz/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "crinkl-commerce-mcp": {
      "url": "https://mcp.crinkl.xyz/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "crinkl-commerce-mcp": {
      "serverUrl": "https://mcp.crinkl.xyz/mcp"
    }
  }
}

Other commerce servers

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Do you run Crinkl Commerce MCP?

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