Attest

io.github.dev-prathap/attest

Decide by policy, gate behind a human, verify by read-back, record a hash-chained ledger.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "attest": {
      "command": "uvx",
      "args": [
        "attestlayer"
      ],
      "env": {
        "ATTEST_LEDGER": ".attest/ledger.sqlite",
        "ATTEST_CONFIRM_TIMEOUT": "900",
        "GMAIL_TOKEN": "<your GMAIL_TOKEN>",
        "GOOGLE_TOKEN": "<your GOOGLE_TOKEN>",
        "SLACK_BOT_TOKEN": "<your SLACK_BOT_TOKEN>",
        "HUBSPOT_TOKEN": "<your HUBSPOT_TOKEN>",
        "NOTION_TOKEN": "<your NOTION_TOKEN>",
        "LINEAR_API_KEY": "<your LINEAR_API_KEY>",
        "GRAPH_TOKEN": "<your GRAPH_TOKEN>"
      }
    }
  }
}
Environment variables
  • ATTEST_LEDGERLedger SQLite path (default .attest/ledger.sqlite)
  • ATTEST_CONFIRM_TIMEOUTSeconds attest_confirm waits for a human (default 900)
  • GMAIL_TOKENsecretGoogle OAuth access token with gmail.readonly — enables Gmail read-back
  • GOOGLE_TOKENsecretGoogle OAuth access token — enables Calendar / Drive / Docs / Sheets read-back
  • SLACK_BOT_TOKENsecretSlack bot token (xoxb-…) with channels:history, channels:read — enables Slack read-back
  • HUBSPOT_TOKENsecretHubSpot private-app token — enables HubSpot read-back
  • NOTION_TOKENsecretNotion integration token — enables Notion read-back
  • LINEAR_API_KEYsecretLinear API key — enables Linear read-back
  • GRAPH_TOKENsecretMicrosoft Graph token — enables Outlook / Teams read-back

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.1.0
Registry
active
Published
9/19/2026

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Attest — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-dev-prathap-attest?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="Attest — listed on Serverdex" width="123" height="40" loading="lazy"></a>

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Markdown — for your README

[![Attest — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-dev-prathap-attest?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.