Koskamo

US Federal Register Watch MCP

An MCP server that allows AI agents to search the US Federal Register for new rules, proposed rules, and notices. It supports keyword searches, agency-specific watches, and tracking of open comment periods for compliance and legal research.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

US Federal Register Watch MCP logo, by Donnie MorrisonCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Donnie Morrison
MCP endpoint (Streamable HTTP)
https://us-federal-register-mcp.donniertf.workers.dev/mcp
Vendor documentation

What you can do with it

  • Search for latest Federal Register documents matching a keyword like 'PFAS'
  • Watch for documents from specific agencies and types since a certain date
  • Find proposed rules with open comment periods sorted by deadline

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.donniertf-hub/us-federal-register-mcp@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
us-federal-register-mcp 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

US Federal Register Watch. reg_search is free. Subscribe ($12/month, cancel anytime) at https://us-federal-register-mcp.donniertf.workers.dev/buy for the paid tools, then pass access_token.

Tools

3 advertised

reg_search
Advertised by the server during the last successful anonymous check.

FREE. Latest 5 Federal Register documents (rules, proposed rules, notices) matching a keyword, e.g. 'PFAS', 'overtime', 'crypto'.

reg_search input schema
{
  "type": "object",
  "required": [
    "keyword"
  ],
  "properties": {
    "keyword": {
      "type": "string"
    }
  }
}
reg_watch
Advertised by the server during the last successful anonymous check.

PRO. Documents since a date for keywords and/or agency slugs (e.g. 'environmental-protection-agency') and types (rule, proposed, notice, presidential).

reg_watch input schema
{
  "type": "object",
  "properties": {
    "since": {
      "type": "string"
    },
    "types": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "agencies": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "keywords": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}
open_comments
Advertised by the server during the last successful anonymous check.

PRO. Proposed rules with comment periods still open for a keyword/agency — deadline first.

open_comments input schema
{
  "type": "object",
  "properties": {
    "keyword": {
      "type": "string"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
484 ms
95th percentile latency
484 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 484 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http us-federal-register-watch-mcp https://us-federal-register-mcp.donniertf.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add us-federal-register-watch-mcp --url https://us-federal-register-mcp.donniertf.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable us-federal-register-watch-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "us-federal-register-watch-mcp": {
      "url": "https://us-federal-register-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "us-federal-register-watch-mcp": {
      "type": "streamableHttp",
      "url": "https://us-federal-register-mcp.donniertf.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start us-federal-register-watch-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "us-federal-register-watch-mcp": {
      "type": "http",
      "url": "https://us-federal-register-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http us-federal-register-watch-mcp https://us-federal-register-mcp.donniertf.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "us-federal-register-watch-mcp": {
      "url": "https://us-federal-register-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "us-federal-register-watch-mcp": {
      "serverUrl": "https://us-federal-register-mcp.donniertf.workers.dev/mcp"
    }
  }
}

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