# Fact-Checker MCP Server

> Use this tool when you need to verify the accuracy of factual claims in text data, as it enables AI agents to extract, verify, and cache facts using advanced semantic fingerprinting and content verification techniques. It solves problems related to misinformation and disinformation by providing a reliable fact-checking mechanism. Ideal for applications requiring high accuracy and trustworthiness, such as news analysis, research, and decision-making systems.

Canonical page: https://skillsregistry.net/skills/luminarylane-fact-checker-mcp  
JSON: https://api.skillsregistry.net/v1/skills/luminarylane-fact-checker-mcp

## Description

This MCP server enables AI agents to extract, verify, and cache factual claims from text using Claude Haiku and semantic fingerprinting, with tools for content verification, signal verification, and fact memory search.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/f3cjkguvwg)
- **Repository:** <https://github.com/luminarylane/fact-checker-mcp>

## 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": "luminarylane-fact-checker-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/luminarylane-fact-checker-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/luminarylane-fact-checker-mcp/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