Crinkl Commerce is a remote MCP server that gives an AI agent 22 tools, among them claim-api-key, get-agent-capabilities, get-agent-me. It answers at https://mcp.crinkl.xyz/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 12 September 2026; the last check, on 24 October 2026, succeeded.
Verified commerce data and proof-backed shopper activation tools for agents.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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. Poll every 5 seconds. No authentication required. Inputs: deviceToken, code |
get-agent-capabilities | 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, s |
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 including the human's manual scans). Returns satsPerReceipt (current rate). Inputs: apiKey |
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 finalized alpha base; provide startDate to bound the window explicitly. Returns a cryp Inputs: startDate, asOfDate |
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 authority. Each daily GMV token is independently verifiable using the issuer's E Inputs: date |
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 GMV root hash. This cryptographic proof allows anyone to independently verify that Inputs: spendId |
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 attestation token, GMV token, or distribution token issued by the Crinkl protocol. Th |
get-merchant-summary | 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 |
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 of the verification pipeline, token types, and settlement model. |
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 commitment token, and optional batch anchor. These artifacts support independent per- Inputs: limit |
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 multipliers (grocery 1.5×, dining 1.5×, etc.), $CRINKL token holding tier multipliers, |
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 Lightning Network payouts, total sats claimed by users, and wallets with balance. This |
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 Area) metro code, enabling analysis of where and how verified commerce is distrib Inputs: days |
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, store resolution, and hard verification. Signals include store name, category (e Inputs: limit |
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's figure is backed by individually signed spend attestation tokens. Inputs: days |
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 queued for review when submitted. No authentication required. |
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 expiration time (10 minutes). No authentication required. Inputs: deviceToken |
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'). This tool converts them to human-readable names (e.g. '35620' → 'New York-Ne Inputs: code |
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 2822 message bytes. After verification, only vendor, date, total, and currency a Inputs: apiKey, eml |
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) spend token signature is valid, (2) GMV token signature is valid, (3) spend is i Inputs: spendToken, gmvToken, gmvInclusionProof, rewardCommitmentToken, batchAnchor |
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 full email is required because DKIM signatures are computed over the original RFC Inputs: apiKey, eml |
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 amounts match the committed values. Reward commitments bind point/sat allocations to s Inputs: token |
Every block below points at https://mcp.crinkl.xyz/mcp. Pick your client and copy.
claude mcp add --transport http crinkl-commerce https://mcp.crinkl.xyz/mcp
{
"mcpServers": {
"crinkl-commerce": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.crinkl.xyz/mcp"]
}
}
}{
"mcpServers": {
"crinkl-commerce": {
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"servers": {
"crinkl-commerce": {
"type": "http",
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"context_servers": {
"crinkl-commerce": {
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"mcpServers": {
"crinkl-commerce": {
"serverUrl": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"mcpServers": {
"crinkl-commerce": {
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}name: Crinkl Commerce
version: 0.0.1
schema: v1
mcpServers:
- name: Crinkl Commerce
type: streamable-http
url: https://mcp.crinkl.xyz/mcp{
"mcpServers": {
"crinkl-commerce": {
"httpUrl": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"mcpServers": {
"crinkl-commerce": {
"type": "http",
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}{
"mcpServers": {
"crinkl-commerce": {
"url": "https://mcp.crinkl.xyz/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.crinkl.xyz%2Fmcp&type=streamable_http&id=crinkl-commerce&name=Crinkl%20Commerce
It answered our last check on 24 October 2026 in 559 ms. Over 6 checks since 12 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by crinkl.xyz and served from mcp.crinkl.xyz, the vendor's own domain: https://mcp.crinkl.xyz/mcp.
22, as returned by the server's own tools/list on 23 September 2026: claim-api-key, get-agent-capabilities, get-agent-me, get-cumulative-gmv, get-daily-gmv, get-gmv-inclusion-proof, get-issuer-keys, get-merchant-summary, and 14 more.
It answered our last check on 24 October 2026 in 559 ms. Over 6 checks since 12 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.crinkl.xyz/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: xyz.crinkl.mcp. Endpoint host: mcp.crinkl.xyz. ARD identifier: urn:air:xyz.crinkl.mcp:mcp:crinkl-commerce.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.