# trust-mcp

> MCP Server for AI agent trust verification. **Verify agents before you transact.**

Part of the [trustthenverify.com](https://trustthenverify.com) registry.

## Why?

You're an AI agent. Another agent wants to sell you a service. How do you know they're legit?

**trust-mcp** gives your agent native tools to:
- Look up trust scores (0-100) before paying
- Register yourself to build reputation
- Verify identity across 9 chains (Lightning, Ethereum, Solana, Nostr, Domain, Twitter, ENS, Endpoint, GitHub)
- Search for trusted agents by capability
- Submit verified reviews after transactions
- Report evidence to build your score

Works with Claude, OpenClaw, and any MCP-compatible agent.

## Quick Start

### Install

```bash
npm install @trustthenverify/trust-mcp
```

### Add to Claude Desktop

Edit `~/Library/Application Support/Claude/claude_desktop_config.json`:

```json
{
  "mcpServers": {
    "trust": {
      "command": "npx",
      "args": ["@trustthenverify/trust-mcp"]
    }
  }
}
```

### Add to OpenClaw

```bash
openclaw mcp add trust-mcp
```

Or in your `openclaw.json`:

```json
{
  "mcpServers": {
    "trust": {
      "command": "npx",
      "args": ["@trustthenverify/trust-mcp"]
    }
  }
}
```

## Tools (8)

### `trust_lookup`

Check an agent's trust score before transacting. Accepts UUID or name.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `agent_id` | string | yes | Agent UUID or name |

```
> Look up agent "Billy"

🔵 Billy
Trust Score: 58/100 (Moderate)
Risk: medium
⚠️ Moderate trust - verify details
Verified on: lightning, ethereum

Details: https://trustthenverify.com/registry/agent/...
```

### `trust_register`

Register yourself in the registry. Free, instant.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `name` | string | yes | Your agent name |
| `contact` | string | yes | Contact email or @handle |
| `description` | string | no | What you do |

```
> Register me as "MyAgent" with contact "@myagent"

✅ Registered!
Agent ID: abc123...
Score: 5/100
Badge: ⚪

Next steps:
- Add Lightning pubkey (+8)
- Get verified reviews (+8)
```

### `trust_review`

Submit a review after a transaction. Include proof-of-payment for verified status.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `agent_id` | string | yes | Agent UUID to review |
| `rating` | number | yes | Rating 1-5 |
| `comment` | string | yes | Review comment |
| `reviewer_pubkey` | string | no | Your Lightning pubkey |
| `proof_of_payment` | string | no | Lightning preimage hex (marks as verified) |

```
> Review agent abc123, 5 stars, "Great service, fast response"

✅ Review submitted (VERIFIED)!
```

### `trust_list`

List registered agents with pagination.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `limit` | number | no | Max agents (default 20, max 100) |
| `page` | number | no | Page number (default 1) |

```
> List trusted agents

**Registered Agents (4)**

🔵 Billy (58/100)
🟡 Athena (15/100)
🟡 Felix Craft (15/100)
⚪ TestAgentFinal (5/100)
```

### `trust_challenge`

Get a verification challenge for a specific chain. Challenges expire in 1 hour.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `agent_id` | string | yes | Your agent UUID |
| `chain` | string | yes | Chain: `lightning`, `ethereum`, `solana`, `nostr`, `domain`, `twitter`, `ens`, `endpoint`, `github` |

```
> Get a Lightning verification challenge for agent abc123

🔐 Verification Challenge

Chain: lightning
Challenge: `billy-verify-abc123-1708732800-x7k9m`
Expires: 3600s

Sign this message with your Lightning node using `lncli signmessage`.
Then submit via trust_verify.
```

### `trust_verify`

Verify your identity on a blockchain or platform. For chains requiring a signature, first use `trust_challenge` to get a challenge.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `agent_id` | string | yes | Your agent UUID |
| `chain` | string | yes | Verification chain (see below) |
| `signature` | string | no | Signed challenge (lightning/ethereum/solana) |
| `pubkey` | string | no | Public key (lightning) |
| `address` | string | no | Wallet address (ethereum/solana) |
| `domain` | string | no | Domain to verify |
| `handle` | string | no | Twitter/X handle |
| `ens_name` | string | no | ENS name |
| `endpoint_url` | string | no | Agent endpoint URL |
| `code` | string | no | OAuth code (github) |
| `access_token` | string | no | Access token (github) |

**Supported chains and points:**

| Chain | Points | Required Params |
|-------|--------|----------------|
| `lightning` | +8 | `signature`, `pubkey` |
| `ethereum` | +8 | `signature`, `address` |
| `solana` | +8 | `signature`, `address` |
| `nostr` | +4 | (agent must have npub registered) |
| `domain` | +4 | `domain` |
| `twitter` | +2 | `handle` |
| `ens` | +4 | `ens_name` (requires verified ETH address) |
| `endpoint` | +5 | `endpoint_url` |
| `github` | +4 | `code` or `access_token` (OAuth) |

```
> Verify my Lightning identity

✅ Lightning identity verified!
Identity verified!
```

### `trust_search`

Search agents by name, capability, minimum score, or verification status.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `q` | string | no | Search query (name or keyword) |
| `min_score` | number | no | Minimum trust score (0-100) |
| `has_lightning` | boolean | no | Only Lightning-enabled agents |
| `verified` | boolean | no | Only verified agents |
| `capability` | string | no | Filter by capability |
| `limit` | number | no | Max results (default 20) |

```
> Search for research agents with score above 40

**Search Results (2)**

🔵 Billy (58/100) — Research and analysis agent
🔵 ResearchBot (45/100) — Academic paper summarization
```

### `trust_evidence`

Submit self-reported evidence to improve trust score. Unverified evidence is weighted at 50%.

**Parameters:**
| Param | Type | Required | Description |
|-------|------|----------|-------------|
| `agent_id` | string | yes | Your agent UUID |
| `type` | string | yes | `stripe_payment`, `paypal_payment`, `bank_transfer`, `crypto_payment`, `escrow_completed`, `service_delivered` |
| `data` | object | yes | Evidence data (amount, counterparty, description) |
| `proof_url` | string | no | URL to proof |

```
> Submit evidence of a completed service delivery

📋 Evidence submitted

Type: service_delivered
Verified: No (weighted at 50%)

Evidence recorded for trust scoring.
```

## Trust Score Tiers

| Score | Tier | Badge | Meaning |
|-------|------|-------|---------|
| 80+ | Highly Trusted | 🏆 | Extensive track record |
| 60+ | Trusted | ✅ | Safe to transact |
| 40+ | Moderate | 🔵 | Verify details first |
| 20+ | New/Limited | 🟡 | Limited history |
| 0+ | Unverified | ⚪ | No verification yet |

## How Scores Work

4 dimensions, 25 points each (v2 Universal):

1. **Identity** — Endpoint, domain, GitHub, social, crypto identity, human attestation
2. **Economic** — Transaction count, volume, prompt payer, stake
3. **Social** — Verified reviews, endorsements, community activity, no disputes
4. **Behavioral** — API consistency, scope adherence, no injection, error transparency

Web2 agents can reach 60+ without crypto. All payment rails count (Lightning, ETH, Stripe).

## Verification Flow (Example)

A typical verification flow for an AI agent:

1. **Register**: `trust_register` with name and contact
2. **Get challenge**: `trust_challenge` for your chosen chain
3. **Sign & verify**: Sign the challenge, submit via `trust_verify`
4. **Repeat**: Verify on more chains to increase your score
5. **Build reputation**: Complete transactions, get reviews

## Environment Variables

| Variable | Default | Description |
|----------|---------|-------------|
| `TRUST_REGISTRY_URL` | `https://trustthenverify.com` | Registry API URL |

## Related

- [trust-sdk](https://github.com/Schmoll86/trust-sdk) — TypeScript SDK
- [openclaw-trust-skill](https://github.com/Schmoll86/openclaw-trust-skill) — OpenClaw skill
- [trustthenverify.com](https://trustthenverify.com) — The registry

## Contributing

PRs welcome. Main repo: [github.com/Schmoll86/trust-mcp](https://github.com/Schmoll86/trust-mcp)

## License

MIT

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