# io.github.yb48666-ctrl/otr-protocol (npm · @otr-protocol/mcp-server)

Merchant trust verification for AI agents. One call = trust score, badge, and purchase safety.

- Trust score: 68/100 (medium)
- Change this week: −11
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@otr-protocol/mcp-server`: 68/100 (this document), [markdown](https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server.md), [page](https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@otr-protocol/mcp-server`
- Version: `3.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 141 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 356 tokens (~178/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add yb48666-ctrl-otr-protocol -- npx -y @otr-protocol/mcp-server
```

### Codex

```bash
codex mcp add yb48666-ctrl-otr-protocol -- npx -y @otr-protocol/mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "yb48666-ctrl-otr-protocol": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@otr-protocol/mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add yb48666-ctrl-otr-protocol --command npx --arg -y --arg @otr-protocol/mcp-server
```

### Hermes

```yaml
mcp_servers:
  yb48666-ctrl-otr-protocol:
    command: "npx"
    args: ["-y", "@otr-protocol/mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "yb48666-ctrl-otr-protocol": {
      "command": "npx",
      "args": [
        "-y",
        "@otr-protocol/mcp-server"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 68, +18)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional improvement] Stability: unverified → 0.20
- [functional] Licence: MIT

### 2026-08-01 (score 50, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-07-31 (score 35, −4)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 39, −40)

- [security regression] Install scripts: pass → unverified
- [security regression] Known CVEs: partial → unverified
- [security regression] Malware scan: pass → unverified
- [security regression] Provenance: fail → unverified
- [functional regression] License: pass → unverified
- [functional regression] Dependency health: partial → unverified
- [functional regression] Maintenance: pass → unverified
- [functional] Licence: MIT

### 2026-07-27 (score 79, +54)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [functional regression] Security disclosure: unverified → fail
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] License: unverified → pass
- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: excellent
- [functional] First check of Schema quality: fail
- [functional] First check of Tool coverage: 100
- [functional] Licence: MIT

### 2026-07-26 (score 25)

First indexed and scored.

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

## MCP tools (2)

### `verify_merchant` (~214 tokens)

Complete merchant trust verification. Returns everything an AI agent needs in ONE call:
\- Trust score (0-94) and badge (PLATINUM/GOLD/SILVER/BRONZE/UNRATED)
\- AI recommendation (SAFE_TO_RECOMMEND / RECOMMEND_WITH_NOTE / RECOMMEND_WITH_CAUTION / DO_NOT_RECOMMEND)
\- 7-dimension breakdown (identity, technical, compliance, policy, webPresence, dataQuality, fulfillment)
\- Capabilities: can purchase? payment methods, e-commerce platform, support channels
\- Links: policy pages (refund/privacy/terms URLs), commerce (cart/checkout), contact, social
\- Entity data: stock listing, headquarters, founding date, industry
\- Data freshness: when last verified, data age, signal sources
Use this as the SINGLE tool for all merchant trust decisions. No need to chain multiple calls.

Input parameters:

- `domain` (string, required): The merchant's domain name (e.g., 'nike.com', 'amazon.com')

### `search_registry` (~142 tokens)

Search the OTR merchant trust registry. Find merchants by name, category, or minimum trust score. Returns a paginated list of verified merchants with trust scores and recommendations.

Input parameters:

- `badge` (string): Filter by badge level
- `category` (string): Filter by business category (e.g., 'Electronics', 'Fashion & Apparel')
- `limit` (number): Maximum results to return (default: 10, max: 50)
- `minScore` (number): Minimum trust score (0-94)
- `page` (number): Page number for pagination (default: 1)
- `query` (string): Search query (merchant name or domain)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 68
- 2026-08-01: 50
- 2026-07-31: 35
- 2026-07-30: 39
- 2026-07-28: 79
- 2026-07-27: 79
- 2026-07-26: 25

## Links

- npm package: https://www.npmjs.com/package/@otr-protocol/mcp-server
- Socket report: https://socket.dev/npm/package/@otr-protocol/mcp-server
- Repository: https://github.com/yb48666-ctrl/OTR-Protocol-by-orbexa
- Changelog RSS feed: https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/yb48666-ctrl-otr-protocol/otr-protocol-mcp-server