MCP server

Crinkl Commerce MCP Official

xyz.crinkl.mcp/crinkl-commerce

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

Verified commerce data and proof-backed shopper activation tools for agents.

Website

At a glance

Type

MCP server

Publisher

crinkl.xyz (verified by the MCP Registry)

Status

Working at last check

Tools

22

Token cost

About 3,823 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.crinkl-commerce]
url = "https://mcp.crinkl.xyz/mcp"

Gemini CLI

{"mcpServers":{"crinkl-commerce":{"httpUrl":"https://mcp.crinkl.xyz/mcp"}}}

Cursor

{"mcpServers":{"crinkl-commerce":{"url":"https://mcp.crinkl.xyz/mcp"}}}

VS Code

{"servers":{"crinkl-commerce":{"type":"http","url":"https://mcp.crinkl.xyz/mcp"}}}

Antigravity

agy mcp add crinkl-commerce https://mcp.crinkl.xyz/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"crinkl-commerce","server_url":"https://mcp.crinkl.xyz/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"crinkl-commerce","server_url":"https://mcp.crinkl.xyz/mcp"}

Tools

• claim-api-key ~171 tokens
  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. Poll every 5 seconds. No authentication required.
• get-agent-capabilities ~124 tokens
  Get Crinkl's canonical external agent capability catalog. Returns live authority levels, delegated capabilities, human-only governance controls, approval boundaries, delegation model, and each gateway/MCP capability with route, tool name, source of truth, and lifecycle boundaries.
• get-agent-me ~145 tokens
  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 including the human's manual scans). Returns satsPerReceipt (current rate).
• get-cumulative-gmv ~217 tokens
  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 finalized alpha base; provide startDate to bound the window explicitly. Returns a cryptographically signed token containing total USD cents, spend
• get-daily-gmv ~149 tokens
  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 authority. Each daily GMV token is independently verifiable using the issuer's Ed25519 public key.
• get-gmv-inclusion-proof ~174 tokens
  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 GMV root hash. This cryptographic proof allows anyone to independently verify that a spend was counted in the reported GMV without trusting th
• get-issuer-keys ~120 tokens
  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 attestation token, GMV token, or distribution token issued by the Crinkl protocol. The key is returned in base64 format.
• get-merchant-summary ~118 tokens
  Get aggregated merchant and category distribution across all verified spends. Shows top store brands, category breakdown (grocery, restaurant, gas, etc.), and spend concentration metrics. All data is derived from cryptographically verified receipt attestations.
• get-protocol-summary ~107 tokens
  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 of the verification pipeline, token types, and settlement model.
• get-recent-issued-proofs ~238 tokens
  Get recent gateway-issued artifact bundles for portable spend/GMV verification. Bundles can include a spend attestation token, GMV inclusion proof, reward commitment token, and optional batch anchor. These artifacts support independent per-step verification, but they are not by themselves proof of B
• get-reward-policy ~159 tokens
  Get the current Crinkl reward policy. Returns the active policy version, SHA-256 policy hash, reward parameters (referral bonuses, base points), category multipliers (grocery 1.5×, dining 1.5×, etc.), $CRINKL token holding tier multipliers, and the latest reserve checkpoint (BTC price, sats/receipt,
• get-settlement-summary ~138 tokens
  Get reward settlement statistics for supported reward rails. Returns the current BTC price used for reward calculations, sats-per-receipt rate, reported Lightning Network payouts, total sats claimed by users, and wallets with balance. This endpoint reports settlement metrics; it is not a chain-final
• get-spend-distribution ~153 tokens
  Get the geographic and category distribution of verified spends over a trailing window. Returns a breakdown by store category and CBSA (Core Based Statistical Area) metro code, enabling analysis of where and how verified commerce is distributed across the United States.
• get-spend-signals ~200 tokens
  Get recent verified spend activity signals from the Crinkl network. Each signal represents a cryptographically attested receipt that has passed OCR extraction, store resolution, and hard verification. Signals include store name, category (e.g. Grocery & Supermarkets, Gas & Convenience), CBSA metro c
• get-trailing-gmv ~139 tokens
  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's figure is backed by individually signed spend attestation tokens.
• get-vendors ~104 tokens
  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 queued for review when submitted. No authentication required.
• pair-agent ~154 tokens
  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 expiration time (10 minutes). No authentication required.
• resolve-cbsa ~175 tokens
  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'). This tool converts them to human-readable names (e.g. '35620' → 'New York-Newark-Jersey City, NY-NJ'). Also handles non-metro codes like
• submit-receipt ~241 tokens
  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 2822 message bytes. After verification, only vendor, date, total, and currency are retained in the identity-free spend token — the email is
• verify-issued-gmv ~401 tokens
  Verify a supplied spend/GMV artifact bundle. Accepts a spend attestation token, GMV token, GMV inclusion proof, and reward commitment token, then verifies: (1) spend token signature is valid, (2) GMV token signature is valid, (3) spend is in the GMV Merkle tree, (4) reward commitment is valid, (5) a
• verify-receipt ~215 tokens
  Preview DKIM verification of a billing email without creating a spend or earning sats. Returns extracted invoice data (vendor, amount, date, DKIM status). The full email is required because DKIM signatures are computed over the original RFC 2822 message bytes — the signature cannot be verified witho
• verify-reward-commitment ~181 tokens
  Verify a reward commitment token's cryptographic integrity. Checks that the reward Merkle tree is valid, the batch signature is authentic, and the reward amounts match the committed values. Reward commitments bind point/sat allocations to specific spends before payout, preventing retroactive manipul

Browse

• OCR (text from images)
• Email
• Calendars
• Crypto and blockchains

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