Introduction

What is Filed?

Filed provides a single, unified API to search and retrieve US business entity records from all 50 state Secretary of State databases. Instead of scraping dozens of different government websites with inconsistent formats, you get clean, structured JSON from one endpoint.

Every business registered in the United States — LLCs, corporations, partnerships, nonprofits — is tracked by its state of formation. Filed normalizes this data and makes it available through a modern REST API.

Use Cases

• KYC / Business Verification — Verify that a business entity exists, is in good standing, and matches the details provided by a customer.
• Due Diligence — Research a company's registration history, officers, registered agent, and related filings before making investment or partnership decisions.
• Lead Generation — Find newly registered businesses by state and type for sales outreach.
• Legal Research — Look up entity details, registered agents, and filing histories for litigation support.
• Compliance Monitoring — Track changes in entity status, registered agents, or officers over time.
• Federal Enrichment — Cross-reference state filings with SEC EDGAR, lobbying disclosures, and government contracts.

Base URL

All API requests are made to:

https://filed.dev/api/v1

Key Features

• 50-state coverage — Every US state and territory with business entity data.
• Normalized data — Consistent JSON schema regardless of source state.
• Federal enrichment — Enrich any entity with SEC filings, lobbying data, and government contracts.
• Batch lookups — Run up to 25 queries in a single request.
• Real-time data — Sourced directly from state databases, not stale caches.
• Simple auth — Bearer token authentication with API keys.