Lenz Fact Check

Name: Lenz Fact Check
Author: lenzhq

@lenzhq

代码仓库

关于 Lenz Fact Check

暂无概览

基本信息

分类

其他

传输方式

stdio

发布者

lenzhq

提交者

Pavel

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "lenz": {
      "type": "http",
      "url": "https://lenz.io/mcp"
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is Lenz Fact Check?

Lenz Fact Check is a remote MCP server that takes a factual claim and runs it through a multi-model pipeline (framing, research, debate, panel review, conclusion) against independent sources on the open web, returning a verdict with a directional confidence level. It is designed for any MCP client and complements retrieval or groundedness checkers.

How to use Lenz Fact Check?

No installation is required. Point your MCP client to https://lenz.io/mcp with transport type http. Authentication is via OAuth or a free Lenz API key (Authorization: Bearer lenz_…). Use tools like assess for a fast verdict (~5–10s) or verify for a deep investigation (~90s) that returns a task_id to poll.

Key features of Lenz Fact Check

Multi-model pipeline (framing → research → debate → panel review → conclusion)
Fast verdict via 3-model panel (assess) in ~5–10 seconds
Deep investigation (verify) for high-stakes claims in ~90 seconds
Follow-up grounded questions (ask) on completed verifications
Resolves multi-claim or clarification interrupts (select)
Remote, hosted service – no local install needed

Use cases of Lenz Fact Check

Verifying factual claims against independent web sources without relying on the model’s training data
Performing quick sanity checks on statements during research or content generation
Conducting thorough, multi-step investigations for high-stakes or sensitive claims
Asking clarifying follow-up questions after a completed verification
Monitoring API usage and remaining quota via the check_usage tool

FAQ from Lenz Fact Check

How do I connect my MCP client to Lenz Fact Check?

Point your client to https://lenz.io/mcp with transport type http and use OAuth or a free Lenz API key (Authorization: Bearer lenz_…).

What kind of verdicts does it return?

Verdicts are directional, not absolute – confidence is bucketed and includes a caveat. The assess tool returns a quick verdict; verify returns a more detailed investigation.

How fast are the different fact-checking modes?

assess typically takes ~5–10 seconds, while verify takes about 90 seconds and returns a task_id that can be polled with get_verification.

Does Lenz Fact Check require any local installation?

No – it is a remote (hosted) MCP server. No software or dependencies need to be installed.

What authentication options are available?

You can use OAuth (no key) or obtain a free Lenz API key from lenz.io/api-integration and pass it as Authorization: Bearer lenz_….

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