# OTR Protocol

> Use this tool when you need to verify merchant trustworthiness and prevent fraud. The OTR Protocol implements a 7-dimension scoring engine and 10-layer anti-fraud engine to provide deterministic scores and immutable audit trails, solving problems of identity verification, technical security, and compliance. It takes in merchant data as input and outputs a trustworthiness score, making it ideal for use cases requiring secure and reliable merchant verification.

Canonical page: https://skillsregistry.net/skills/yb48666-ctrl-otr-protocol  
JSON: https://api.skillsregistry.net/v1/skills/yb48666-ctrl-otr-protocol

## Description

Implements the Open Trust Registry (OTR) protocol for merchant trust verification. Provides tools to verify merchant trustworthiness through a 7-dimension scoring engine covering identity, technical security, compliance, policy, web presence, data quality, and fulfillment. Includes a 10-layer anti-fraud engine with deterministic, reproducible scores backed by immutable audit trails.

## Trust

- **Trust score (0–1):** 0.64
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-01

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/yb48666-ctrl-otr-protocol)
- **Repository:** <https://github.com/yb48666-ctrl/otr-protocol-by-orbexa>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "yb48666-ctrl-otr-protocol"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/yb48666-ctrl-otr-protocol` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/yb48666-ctrl-otr-protocol/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt