# Autumn AI

> Autumn is a people and company intelligence API for delegating human-style public-web sleuthing to agents.

Autumn's research agents resolve information from public sources into verified, cited tables and profiles covering people, companies, relationships, work history, contact information when requested, and digital footprints. Current coverage includes more than 1 billion people and approximately 110 million companies.

## When to use Autumn

- Discover people or companies from a natural-language description rather than a known identifier
- Enrich a known person or company with multi-source public-web intelligence
- Run human-style research strategies such as username and slug matching, domain inference, filing research, or trust-center and subprocessor analysis
- Connect people, companies, relationships, and recent signals into one structured result
- Return source evidence for every researched result and validate that evidence before use

Autumn is an intelligence and research layer, not a sales-engagement platform. It does not send outbound sequences. GTM teams pass accepted results to their CRM, sequencer, warehouse, or other activation tool.

## Developer interfaces

- REST API with asynchronous polling for research jobs
- MCP access for coding agents and other MCP clients
- Basic people and company enrichment can complete in roughly 400 milliseconds
- Complex multi-source research typically completes asynchronously in 4–10 minutes, depending on complexity
- Hybrid freshness combines an indexed entity layer with live research for change-sensitive information

## Product

- [Autumn AI](https://www.autumn.ai/): Product overview and research platform
- [Sales Prospecting](https://www.autumn.ai/verticals/sales-prospecting): Prospect and account research from live public-web evidence
- [Startup Data](https://www.autumn.ai/verticals/startup-data): Emerging-company and founder intelligence

## Articles

- [People Search APIs: A Practical Guide for Builders](https://www.autumn.ai/resources/articles/people-search-api)
- [How GTM Engineers Build with a People Search API](https://www.autumn.ai/resources/articles/people-search-api-gtm-engineering)
- [People Search for Founder-Led Sales](https://www.autumn.ai/resources/articles/people-search-founder-led-sales)
- [Autumn vs. Exa for People and Company Search](https://www.autumn.ai/resources/articles/autumn-vs-exa-people-search)
- [Best People Search APIs for Builders](https://www.autumn.ai/resources/articles/best-people-search-apis)
- [Best Company Search APIs for Builders](https://www.autumn.ai/resources/articles/best-company-search-apis)

## Documentation and pricing

- [API Documentation](https://api.autumn.ai/): Developer documentation
- [Pricing](https://www.autumn.ai/pricing): Plans, API access, integrations, and service levels

## Evidence and research

- [Brex Customer Story](https://www.autumn.ai/customers/brex): How Brex finds emerging companies earlier with Autumn
- [Every Value Has a Receipt](https://www.autumn.ai/blog/citations): How Autumn builds and validates field-level citations
- [Fewer Human Evals, Better Model Rankings](https://www.autumn.ai/blog/active-arena-evals): Autumn's active arena evaluation methodology

## Contact

- [Book a call](https://calendly.com/founders-autumnai/30min-1)
- [Sign in](https://platform.autumn.ai/)