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 and equivalent business-filing agencies. 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.
• Simple auth — Bearer token authentication with API keys.