@pipeworx/fjc-judges

Connect: https://pipeworx.io/mcp — every tool in the catalog, including @pipeworx/fjc-judges’s. Install: one-click buttons

No MCP client? Skip the connection: POST https://gateway.pipeworx.io/v1/tools/search_packs {"query":"..."} to find a tool below, GET /v1/tools/<name> for its schema, POST the same URL with arguments for the data — see For AI agents.

Tools: 3

Biographies and appointment records of every US federal (Article III) judge since 1789 — Supreme Court justices, court of appeals and district court judges — from the Federal Judicial Center’s Biographical Directory.

Tools

• fjc_judge_lookup(name) — one judge’s full record: every appointment with court, title, appointing president and party, ABA rating, nomination / hearing / confirmation / commission dates, Senate vote, chief-judge and senior-status dates and how service ended; plus birth, death, education and career. Answers “who appointed Judge X”, “when was X confirmed”, “is X still serving”.
• fjc_judges_by_court(court, status?) — judges of one court (e.g. “Ninth Circuit”, “Southern District of New York”, “Supreme Court”). status is active (default — active service only), serving (active or senior) or all.
• fjc_judges_by_president(president, court_type?) — every Article III appointment a president made, with totals by court level. Joseph R. Biden: 235 appointments of 230 distinct judges (one judge can be appointed twice, e.g. Ketanji Brown Jackson to the D.C. Circuit and then the Supreme Court).

Every response carries source, licence and data_as_of (when the FJC last regenerated the directory).

Auth

Keyless.

Data sources

• Federal Judicial Center, Biographical Directory of Article III Federal Judges, 1789–present. Public domain (a work of the US federal government).

The FJC publishes the directory as a single export (~5 MB, ~4,000 judges, regenerated daily), not as a query API. The pack reads it per isolate and keeps the parsed rows for up to six hours, so the first call on a cold isolate takes about a second and the rest take milliseconds.

Things the next person would otherwise rediscover:

• One row per judge, with up to six appointments flattened into numbered columns (Court Name (1) … (6)). A judge elevated from district court to a circuit has two appointments; counts “by president” are appointments, and the response reports distinct judges alongside.
• Empty cells are frequently a single space, not empty — trim before testing.
• “Active” means no termination date and no senior-status date on that appointment. Senior judges still hear cases; use status: "serving" to include them.
• Presidents are written as the FJC writes them (“George H.W. Bush”, “Joseph R. Biden”). A surname that matches two presidents returns ambiguous_president with both candidates rather than merging them.
• Magistrate, bankruptcy and state judges are not Article III judges and are not in this directory.

Tools

• fjc_judge_lookup — Look up a US federal (Article III) judge by name in the Federal Judicial Center biographical directory — every Supreme Court justice, court of appeals and district court judge since 1789. Returns each
• fjc_judges_by_court — List US federal judges who sat on a given federal court — e.g. the Supreme Court, the Ninth Circuit, the Southern District of New York — from the Federal Judicial Center directory. Filter to judges cu
• fjc_judges_by_president — List the Article III federal judges appointed by a US president, from the Federal Judicial Center directory, with counts by court level (Supreme Court, courts of appeals, district courts). Returns eac