MCP MeasureMCP Measure

index observed

Regulatory Intel MCP

US Federal Register for AI agents: rules, notices, executive orders, agency lookup. No keys.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
92%
Naming quality
84%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,670Tokens (tool definitions)
~3.0 KBTypical response size
Moderate attention impact (1.30% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "federal-register-rules": {
      "url": "https://regulatory.datakoot.com/mcp"
    }
  }
}

Remote endpoints

https://regulatory.datakoot.com/mcpstreamable-http

What it can do

Tool inventory

Tools (5)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢search_documents(term, type, agency, since, until, ...)

Search the US Federal Register for regulations and notices. Filter by keyword, document type (rule, proposed_rule, notice, presidential_document), issuing agency (slug from the agencies tool), and publication date. Returns matching documents with title, type, agencies, abstract and links. Great for 'what did agency X publish about topic Y'.

Input Schema

{
  "type": "object",
  "properties": {
    "term": {
      "type": "string",
      "description": "Keyword(s) to search, e.g. 'artificial intelligence', 'PFAS'."
    },
    "type": {
      "type": "string",
      "enum": [
        "rule",
        "proposed_rule",
        "notice",
        "presidential_document"
      ],
      "description": "Restrict to one document type."
    },
    "agency": {
      "type": "string",
      "description": "Agency slug (from the 'agencies' tool), e.g. 'environmental-protection-agency'."
    },
    "since": {
      "type": "string",
      "description": "Only documents published on/after this date (YYYY-MM-DD)."
    },
    "until": {
      "type": "string",
      "description": "Only documents published on/before this date (YYYY-MM-DD)."
    },
    "per_page": {
      "type": "integer",
      "description": "Results to return (default 10, max 30).",
      "default": 10
    }
  },
  "required": []
}

Output Schema

{
  "type": "object",
  "properties": {
    "count": {},
    "total_pages": {},
    "results": {},
    "source": {},
    "note": {},
    "provenance": {
      "type": "object",
      "description": "Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.",
      "properties": {
        "served_at": {
          "type": "string",
          "format": "date-time"
        },
        "upstream": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "publisher": {
          "type": "string"
        },
        "may_be_cached": {
          "type": "boolean"
        }
      }
    }
  },
  "additionalProperties": true
}
🟢document(document_number)

Get full detail on a single Federal Register document by its document number (e.g. '2026-12811'): abstract, action, effective date, comment deadline, CFR references, citation, topics, agencies and links.

Input Schema

{
  "type": "object",
  "properties": {
    "document_number": {
      "type": "string",
      "description": "Federal Register document number, e.g. 2026-17888. Get one from search_documents or recent_documents."
    }
  },
  "required": [
    "document_number"
  ]
}

Output Schema

{
  "type": "object",
  "properties": {
    "title": {},
    "type": {},
    "document_number": {},
    "citation": {},
    "publication_date": {},
    "effective_on": {},
    "action": {},
    "abstract": {},
    "dates": {},
    "comments_close_on": {},
    "agencies": {},
    "topics": {},
    "cfr_references": {},
    "regulation_id_numbers": {},
    "executive_order_number": {},
    "signing_date": {},
    "significant": {},
    "html_url": {},
    "pdf_url": {},
    "source": {},
    "note": {},
    "provenance": {
      "type": "object",
      "description": "Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.",
      "properties": {
        "served_at": {
          "type": "string",
          "format": "date-time"
        },
        "upstream": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "publisher": {
          "type": "string"
        },
        "may_be_cached": {
          "type": "boolean"
        }
      }
    }
  },
  "additionalProperties": true
}
🟢recent_documents(type, agency, days, per_page)

List the most recent Federal Register documents, optionally filtered by type and issuing agency, over a look-back window. Use this to monitor newly published rules/notices from an agency.

Input Schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "rule",
        "proposed_rule",
        "notice",
        "presidential_document"
      ],
      "description": "Document type. One of: rule, proposed_rule, notice, presidential_document."
    },
    "agency": {
      "type": "string",
      "description": "Agency slug (from the 'agencies' tool)."
    },
    "days": {
      "type": "integer",
      "description": "Look back this many days (default 7, max 90).",
      "default": 7
    },
    "per_page": {
      "type": "integer",
      "description": "Results to return (default 15, max 30).",
      "default": 15
    }
  },
  "required": []
}

Output Schema

{
  "type": "object",
  "properties": {
    "window_days": {},
    "since": {},
    "count": {},
    "total_pages": {},
    "results": {},
    "source": {},
    "note": {},
    "provenance": {
      "type": "object",
      "description": "Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.",
      "properties": {
        "served_at": {
          "type": "string",
          "format": "date-time"
        },
        "upstream": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "publisher": {
          "type": "string"
        },
        "may_be_cached": {
          "type": "boolean"
        }
      }
    }
  },
  "additionalProperties": true
}
🟢executive_orders(term, since, per_page)

Search recent US presidential Executive Orders published in the Federal Register. Optionally filter by keyword and date. Returns EO number, signing/publication date, title and links.

Input Schema

{
  "type": "object",
  "properties": {
    "term": {
      "type": "string",
      "description": "Optional keyword to search within executive orders."
    },
    "since": {
      "type": "string",
      "description": "Only EOs published on/after this date (YYYY-MM-DD)."
    },
    "per_page": {
      "type": "integer",
      "description": "Results to return (default 10, max 30).",
      "default": 10
    }
  },
  "required": []
}

Output Schema

{
  "type": "object",
  "properties": {
    "count": {},
    "total_pages": {},
    "results": {},
    "source": {},
    "note": {},
    "provenance": {
      "type": "object",
      "description": "Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.",
      "properties": {
        "served_at": {
          "type": "string",
          "format": "date-time"
        },
        "upstream": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "publisher": {
          "type": "string"
        },
        "may_be_cached": {
          "type": "boolean"
        }
      }
    }
  },
  "additionalProperties": true
}
🟢agencies(query)

Look up US federal agencies and their slugs (used to filter the other tools by issuing agency). Optionally pass a query to match by name, e.g. 'environmental' or 'defense'.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Filter agencies whose name contains this text."
    }
  },
  "required": []
}

Output Schema

{
  "type": "object",
  "properties": {
    "count": {},
    "agencies": {},
    "source": {},
    "provenance": {
      "type": "object",
      "description": "Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.",
      "properties": {
        "served_at": {
          "type": "string",
          "format": "date-time"
        },
        "upstream": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "publisher": {
          "type": "string"
        },
        "may_be_cached": {
          "type": "boolean"
        }
      }
    }
  },
  "additionalProperties": true
}

Community

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Evidence

Recent observations

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