ClawMon

Checks MCP skills for multi-tier trust scores, staking, sybil resistance, and attestation to guide secure skill usage decisions.

Trusted ClawMon

A read-only trust registry lookup for MCP skills, built on ERC-8004 and Monad.

What it does

Trusted ClawMon is a trust score lookup service. It lets agents query reputation data for MCP skills before using them. All lookups are read-only HTTPS GET requests that return JSON — no signing, no wallet connection, no credentials required.

Connection

Setting	Value
Base URL	https://trusted-clawmon-api.up.railway.app
Protocol	HTTPS only (TLS required)
WebSocket	wss://trusted-clawmon-api.up.railway.app/ws (read-only event stream)
Authentication	None — all read endpoints are public
Rate limit	Standard HTTP rate limiting applies

Required environment variables

None. This skill performs read-only HTTPS lookups against the public ClawMon API. No API keys, private keys, wallet connections, RPC endpoints, or signing credentials are needed.

What data is sent

Read-only lookups send only the skill ID in the URL path (e.g., GET /api/agents/gmail-integration). No user data, wallet addresses, input context, or usage telemetry is transmitted.

The optional feedback endpoint (POST /api/feedback) sends a skill ID, a pseudonymous reviewer address, and a numeric score. This is opt-in and never triggered automatically.

Wallet address

The wallet field in the frontmatter (0x3e4A...d7Ed) is the publisher's Monad testnet address for receiving ClawMon protocol revenue. It is not used by the agent, not required for any lookup, and does not grant signing authority. Agents never need to interact with this address.

When to use this skill

When a user asks you to evaluate whether an MCP skill is safe or trustworthy, query ClawMon for its trust score. Do not query ClawMon automatically before every skill call — only when the user requests a trust check or when invoking a skill you have not used before and want to verify.

Read-only API (no credentials needed)

Look up a skill's trust score

GET https://trusted-clawmon-api.up.railway.app/api/agents/:skillId

Returns trust scores and tiers. Key fields in the response:

• hardenedScore (0-100) — sybil-resistant score
• hardenedTier — trust tier (AAA through C)
• isSybil — whether the skill was flagged as part of a sybil cluster
• isStaked — whether the publisher has staked MON
• teeStatus — TEE attestation status (verified, unregistered, expired)
• teeCodeHashMatch — whether the code hash matches the pinned version

Get the trust leaderboard

GET https://trusted-clawmon-api.up.railway.app/api/leaderboard

Returns all skills ranked by hardened trust score.

Check staking status

GET https://trusted-clawmon-api.up.railway.app/api/staking/:skillId

Returns stake amount, tier (None/Bronze/Silver/Gold/Platinum), and slash history.

Check TEE attestation

GET https://trusted-clawmon-api.up.railway.app/api/tee/:skillId

Returns TEE verification status, code-hash match, and attestation freshness.

System health

GET https://trusted-clawmon-api.up.railway.app/api/health

Returns API status, version, agent count, and uptime.

Optional: Feedback submission (opt-in only)

Feedback is never submitted automatically. Only submit feedback when the user explicitly asks to rate a skill.

POST https://trusted-clawmon-api.up.railway.app/api/feedback
Content-Type: application/json

{
  "agentId": "<skillId>",
  "clientAddress": "<pseudonymous-identifier>",
  "value": 85,
  "tag1": "coding"
}

The clientAddress is a pseudonymous string identifier — it does not need to be a real wallet address. No signing or wallet connection is required.

Optional: x402 payment flows

x402 payment endpoints exist but are entirely optional and are not used by this skill by default. They are documented in the ClawMon API for publishers who want pay-per-use access to their own skills. Agents using ClawMon as a trust lookup never need to make payments.

Trust Tiers

Tier	Score Range	Meaning
AAA	90-100	Highest trust — well-reviewed, staked, attested
AA	80-89	High trust
A	70-79	Good trust
BBB	60-69	Moderate — use with caution
BB	50-59	Below average
B	40-49	Low trust
CCC	30-39	Very low — likely problematic
CC	20-29	Near-zero trust
C	0-19	Untrusted or flagged

Example

User: "Is the gmail-integration skill safe to use?"

1. GET https://trusted-clawmon-api.up.railway.app/api/agents/gmail-integration
2. Check hardenedTier → "AA" (high trust)
3. Check isSybil → false (not flagged)
4. Check isStaked → true (publisher has skin in the game)
5. Report: "gmail-integration has an AA trust rating (score 84/100), publisher is staked, no sybil flags."

Provenance & Hosting

Detail	Value
Publisher	Drew Mailen (@drewmailen)
Source code	github.com/drewmailen/ClawMon (MIT license)
Hosting	Railway (publisher-operated)
API domain	trusted-clawmon-api.up.railway.app
Self-hostable	Yes — clone the repo, npm install && npm run build && npm start

The API is operated by the skill publisher on Railway. The full source code is open on GitHub under the MIT license. If you prefer not to trust the hosted endpoint, you can self-host the API from the public repo and point to your own instance.

Links

• Source Code
• ERC-8004 Specification
• Monad