Dataset · federal-register

Federal Register for AI agents

US federal rules, notices, and presidential documents from the Federal Register API, synced with citations.

What it is

Federal Register records synced from National Archives and Records Administration into the Open District event store for MCP and read-only SQL.

Freshness

Source	Hosted catalog	Last updated	Schedule
`federal-register`	In free hosted catalog	Oct 17, 2026, 05:35 UTC (about 9 hours ago)	Daily at 05:35 UTC and 17:35 UTC

Machine-readable catalog status

License and attribution

US federal works are generally public domain; follow Federal Register API etiquette and cite document numbers. License reference

Connect

Canonical MCP endpoint https://api.opendistrict.org/mcp (legacy https://mcp.opendistrict.org/mcp). A free API key is required — Authorization: Bearer $OD_API_KEY. Mint a key after signup. See MCP quickstart, pricing, and openapi.yaml.

{
  "mcpServers": {
    "opendistrict": {
      "url": "https://api.opendistrict.org/mcp",
      "headers": {
        "Authorization": "Bearer $OD_API_KEY"
      }
    }
  }
}

Sample requests

MCP `tools/call` (run_sql)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run_sql",
    "arguments": {
      "sql": "SELECT event_type, created_at, source_id FROM events WHERE event_type = 'gov.document' LIMIT 20"
    }
  }
}

SQL

SELECT event_type, created_at, source_id FROM events WHERE event_type = 'gov.document' LIMIT 20

Example agent prompts

List final rules published in the Federal Register in the last 7 days with document numbers.
Which agencies published the most notices this month?

FAQ

What event type stores Federal Register rows?

gov.document events in the public catalog tenant.

How fresh is the sync?

See the freshness table on this page for the last update time.