# Crinkl Commerce MCP server

Source: https://glimind.com/server/mcp-registry%2Fxyz.crinkl.mcp%2Fcrinkl-commerce
Registry id: `mcp-registry/xyz.crinkl.mcp/crinkl-commerce`
Status: live (checked 2026-10-26T18:37:01.064Z)

## Measurements (30 days)

- Uptime: 99.83%
- Checks: 4939
- Outages (90 days): 38

## Install

```json
{
  "mcpServers": {
    "crinkl-commerce-mcp-server": {
      "type": "http",
      "url": "https://mcp.crinkl.xyz/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http crinkl-commerce-mcp-server https://mcp.crinkl.xyz/mcp
```

## Tools (22)

- `claim-api-key`: Poll for the API key after the human approves the pairing code in the Crinkl PWA. Returns 202 while pending, 200 with the API key once approved, 410 if expired.
- `get-agent-capabilities`: Get Crinkl's canonical external agent capability catalog. Returns live authority levels, delegated capabilities, human-only governance controls, approval bounda
- `get-agent-me`: Get your agent's submission count, earned sats, and wallet-level stats. Shows both per-API-key numbers (your submissions) and wallet-wide numbers (all sources i
- `get-cumulative-gmv`: Get cumulative Gross Merchandise Value (GMV) from the public cumulative feed. The live Crinkl site displays this live beta cumulative total on top of the finali
- `get-daily-gmv`: Get the signed GMV summary for a specific calendar date (UTC). Returns the verified spend count, total USD cents, and a cryptographic signature from the Crinkl 
- `get-gmv-inclusion-proof`: Get a Merkle inclusion proof that a specific spend is included in a daily GMV total. Returns the spend leaf hash, sibling hashes for the Merkle path, and the GM
- `get-issuer-keys`: Get the Crinkl authority's Ed25519 public key used to sign all attestation tokens. This key can be used to independently verify the signature on any spend attes
- `get-merchant-summary`: Get aggregated merchant and category distribution across all verified spends. Shows top store brands, category breakdown (grocery, restaurant, gas, etc.), and s
- `get-protocol-summary`: Get a concise explanation of what Crinkl is and how the protocol works. Use this first if you have no prior context about Crinkl. Returns a plain-text overview 
- `get-recent-issued-proofs`: Get recent gateway-issued artifact bundles for portable spend/GMV verification. Bundles can include a spend attestation token, GMV inclusion proof, reward commi
- `get-reward-policy`: Get the current Crinkl reward policy. Returns the active policy version, SHA-256 policy hash, reward parameters (referral bonuses, base points), category multip
- `get-settlement-summary`: Get reward settlement statistics for supported reward rails. Returns the current BTC price used for reward calculations, sats-per-receipt rate, reported Lightni
- `get-spend-distribution`: Get the geographic and category distribution of verified spends over a trailing window. Returns a breakdown by store category and CBSA (Core Based Statistical A
- `get-spend-signals`: Get recent verified spend activity signals from the Crinkl network. Each signal represents a cryptographically attested receipt that has passed OCR extraction, 
- `get-trailing-gmv`: Get a rolling N-day GMV trend summary. Returns daily verified GMV figures for the trailing window, enabling trend analysis of verified commerce volume. Each day
- `get-vendors`: Get the currently approved DKIM vendor domains exposed by the public agent endpoint. Standalone agents use this list to seed Gmail searches; unknown vendors are
- `pair-agent`: Start the human-authorized agent pairing flow. Generates a 4-character code that a human approves in the Crinkl PWA to authorize the agent. Returns the code and
- `resolve-cbsa`: Resolve a CBSA (Core Based Statistical Area) code to its metro area name. CBSA codes appear in spend signals and distribution data as 5-digit codes (e.g. '35620
- `submit-receipt`: Submit a DKIM-verified billing email to mint a spend token and earn sats. The full email is required because DKIM signatures are computed over the original RFC 
- `verify-issued-gmv`: Verify a supplied spend/GMV artifact bundle. Accepts a spend attestation token, GMV token, GMV inclusion proof, and reward commitment token, then verifies: (1) 
- `verify-receipt`: Preview DKIM verification of a billing email without creating a spend or earning sats. Returns extracted invoice data (vendor, amount, date, DKIM status). The f
- `verify-reward-commitment`: Verify a reward commitment token's cryptographic integrity. Checks that the reward Merkle tree is valid, the batch signature is authentic, and the reward amount

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.