# com.narrowhighway/concordance

> com.narrowhighway/concordance — com-narrowhighway-concordance. Use this tool when you need to verify claims deterministically across multiple domains, without relying on machine learning models. It solves problems of authenticity and trustworthiness by generating receipts for verification, accepting claims as input and producing verified receipts as output. Ideal for use cases requiring high assurance and transparency, such as fact-checking and data validation, across approximately 60 domains.

Canonical page: https://skillsregistry.net/skills/com-narrowhighway-concordance  
JSON: https://api.skillsregistry.net/v1/skills/com-narrowhighway-concordance

## Description

Deterministic claim verification with receipts across ~60 domains. No model in the loop.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** unverified

## Facts

- **Version:** 2.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.narrowhighway%2Fconcordance)
- **Repository:** <https://github.com/matharrismma/concordance-2>

## Use it

MCP endpoint published by the skill: `https://narrowhighway.com/mcp`

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": "com-narrowhighway-concordance"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-narrowhighway-concordance` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-narrowhighway-concordance/pull`

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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