Arlet

Connect Congress.gov to Gemini Enterprise

Query Congress.gov directly from Gemini Enterprise. Arlet links the two through one MCP connection and takes care of API keys.

This server connects your AI client to the Congress.gov API, operated by the Library of Congress - the authoritative source for the status of legislation in the US Congress.

Key features:

  • list_bills: recently updated bills and resolutions, filtered by congress number (e.g. 119), bill type (hr, s, hjres, ...) and an update-date window. Useful for monitoring legislative activity.
  • get_bill: one bill's detail - title, sponsors with party and state, policy area, latest action, whether it became law and under which public-law numbers, plus counts of actions, cosponsors, committees and amendments, and a link to the human-readable congress.gov page.
  • list_bill_actions: the step-by-step legislative history, newest first, including committee referrals and recorded floor votes with roll-call numbers.

One intentional design note: the upstream API has no keyword search. To find bills about a topic, use the GovInfo server's full-text search on the BILLS collection first, then come back here with the congress / bill type / number for status and history. The two servers are designed to be used together.

Using the API requires a free key issued at api.congress.gov/sign-up. Set it as CONGRESS_GOV_API_KEY in your Arlet environment variables.

How to connect Congress.gov to Gemini Enterprise

  1. 1

    In the Arlet dashboard, open Data tools, find Congress.gov, set the API key issued by Congress.gov and switch it on.

  2. 2

    Sign in to Gemini Enterprise with your organization Google account and open the gear icon at the bottom left β†’ Connectors β†’ Add MCP Server.

  3. 3

    In the MCP info tab, enter https://mcp.arlet.dev/mcp/ as the Server URL and "Arlet" as the Name. In the Auth tab, enter the OAuth settings from the Arlet docs (Authorization URL / Token URL / Client ID / Client Secret / Scopes) and click Add.

  4. 4

    In the connector list on the chat screen, click Connect on Arlet, sign in with Google and authorize. Arlet can then be enabled with the toggle.

Adding custom connectors (MCP) requires a Gemini Enterprise subscription and is not available in the consumer Gemini app. See the docs for the values to enter in the Auth tab.

Use Congress.gov with other AI clients