# ProjectUSC.org

> Free, searchable access to US federal law. Published by Ink Dot CPA, PLLC.

## About

ProjectUSC.org publishes the complete text of the United States Code (54 titles, 60,418+ sections) and the U.S. Constitution (7 articles, 27 amendments) with static JSON API endpoints.

## API

All endpoints return static JSON. No authentication required. No rate limits.

- [Title List](/api/titles.json): All USC titles with section counts and metadata
- [Constitution Index](/api/constitution.json): Articles and amendments with topics
- [OpenAPI Spec](/api/openapi.json): Machine-readable API specification

## URL Patterns

### US Code Sections
- HTML: /usc/t{TITLE}/s{SECTION}.html
- JSON: /usc/t{TITLE}/s{SECTION}.json
- Example: /usc/t26/s501.json (IRC § 501)

### US Code Structure
- Title hierarchy: /usc/t{TITLE}/structure.json
- Example: /usc/t26/structure.json

### Constitution
- Article: /constitution/article-{N}.json (N = 1-7)
- Amendment: /constitution/amendment-{N}.json (N = 1-27)
- Preamble: /constitution/preamble.json

## Data Sources

- US Code: Office of the Law Revision Counsel (OLRC) USLM XML
- Constitution: House Manual (HMAN) via govinfo.gov, USLM XML

## Disclaimer

This is not an official source of law. Content is provided for informational purposes only.

## MCP Server

For programmatic access via Model Context Protocol: https://github.com/nicholasgasior/projectusc-mcp