The most comprehensive guide to every state court in the US.

1Court is the verified court-data layer for legal AI: filing fees, e-filing, clerk contacts, and local rules pulled from official sources for every U.S. county, all 3,143 counties across all 50 states and DC. Available inside Claude and any AI assistant through the Model Context Protocol (MCP).

Explore the Directory → Use it in Claude
MCP endpoint https://state.1court.ai/api/mcp
3,143
Counties covered
50
States + DC
100%
Official sources
Live
In Claude via MCP

Your AI assistant just got a law library’s worth of court knowledge.

Connect the 1Court connector and your assistant answers court questions from our verified data: fees, e-filing rules, clerk contacts, case lookup. Every response is cited back to the official source. Built on the open MCP standard, so it works in Claude and any MCP-enabled assistant.

  1. 1
    Open Settings, then Connectors and choose Add custom connector.
  2. 2
    Paste the endpoint https://state.1court.ai/api/mcp and save.
  3. 3
    Ask about any U.S. county. 1Court answers, with a citation.
Browse the data → Talk to us
Ask anything, court by county
You
How do I file for divorce in Harris County, Texas? Fee and portal?
Assistant
called 1Court, get_court_info
In Harris County, TX, a divorce petition is $350 (no children), filed through the District Clerk. E-filing runs through eFileTexas.gov and is mandatory for attorneys.
Source: 1Court Directory
The 1Court products

Three tools for everyone who works with the courts.

A public court directory, filing automation, and sentencing analytics. Different jobs, one mission: make the justice system faster and fairer to navigate.

For anyone filing or researching

The only complete U.S. court directory, every county in America: locations, filing fees, e-filing portals, clerk contacts, and local rules, verified and cited from official sources.

Open the directory →
For filers & legal teams

Auto-fills every court form your jurisdiction requires, from cover sheets to summons to addendums, straight from your case data. Upload a PDF, download, and file in seconds.

Visit SimpleCase →
For attorneys & public defenders

Comprehensive sentencing data, searchable in seconds. Search inmate and sentencing records, surface racial disparities, and flag clients held past their release date. Free.

Explore Justice Audit →
Why 1Court

Court data you can actually trust an AI with.

Most court information online is stale, thin, or wrong. Ours is researched from official sources, cited, and kept current: the accuracy an AI answer demands.

Verified from official sources

Every fee, clerk, and e-filing rule is checked against the court’s own records, and each answer links back to prove it.

Kept current, automatically

Continuous link monitoring and scheduled re-verification catch changes to fees, clerks, and portals before they go stale.

Built for AI, not just people

Structured, machine-readable, and MCP-native, so assistants can call it directly and cite you as the source.

About 1Court

Building judicial AI on verified ground truth.

1Court makes the American court system legible to people, professionals, and machines. We research and verify court data from official sources, then put it to work across a public directory, filing automation with SimpleCase, and sentencing analytics with Justice Audit. That same data is now callable by any AI assistant through our connector. Backed by Nationwide Legal’s filing expertise, our mission is simple: make understanding and filing in any U.S. court fast, accurate, and accessible.

See the directory → Contact us

Build court intelligence into your product.

Legal-tech platforms, process servers, and law firms can reach the same verified data through our MCP connector or API. One integration, nationwide court coverage.

Request access →