# Autumn AI, $20 monthly: Company discovery API

> Find 25 Series A startups building AI developer tools that raised in the last 12 months.

Autumn AI's Hobby plan lets you call the company discovery API. We check each provider's docs for 13 fields. Autumn AI's docs list 2: Headquarters, Funding.
We haven't run Autumn AI through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan costs $20 a month. We rank 1,165 plans for company discovery APIs by price. Half the plans cost $0.525 or less per 1,000 companies.
[StackScan's $189 monthly plan](https://datacircle.dev/company-discovery-apis/stackscan/189-monthly-enterprise-post-v1-tech-lookup-lists/llms.txt) is the cheapest paid plan per 1,000 companies. StackScan's $189 monthly plan charges nothing per call. You get as many companies as StackScan's rate limit allows. [Seltz's pay-as-you-go plan](https://datacircle.dev/company-discovery-apis/seltz/pay-as-you-go-pay-as-you-go-post-v1-search-search-base/llms.txt) costs the least for 10,000 companies a month: $0.03.
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies. PeopleSearch.im's $5 pack costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/autumn-ai/20-monthly
- [Company discovery API: the best of 100+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://www.autumn.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://api.autumn.ai/task`
- API key: with the plan, on https://www.autumn.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://www.autumn.ai/docs/api-reference/tasks/start-a-task?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: Autumn AI (https://www.autumn.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 15%
- Headquarters: ✓
- Funding: ✓

## Price

- Billing: monthly
- $ a month: $20

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Start from a task spec · Continue a task · Execute a task

## Overage

- Units cap: hard

## In their words

- Their pitch: Find 25 Series A startups building AI developer tools that raised in the last 12 months.

## Data

- Freshness: live
- Keep data: no limit
- Use data: You may not reverse engineer, decompile, modify, copy, rent, lease, distribute, or transfer rights to the Services. Prohibited activities include creating competitive applications, interfering with Service operation, or bypassing access restrictions. You must comply with all applicable laws and respect third-party intellectual property rights. [...] Autumn AI grants you a nonexclusive, limited, personal license to access and use the specified Services during the Order Form Term for your internal business purposes, in compliance with the official documentation.

## Plan

- Pay: $20
- You get: 2,000 credits a month

## Rate limit

- Batch: 1

## Speed

- Answer: by polling

## The call

- You send: nothing required. Optional: prompt, name, clarify, input_files, output, input_schema, input_rows, rules, count, target_count, version, source_data, task_id, message
- Method: POST
- Path: /task

## About the plan

- Plan: Hobby
- Who can get it: anyone who signs in

## The 8 fields the plan's answer can hold

company name, website, founders, headquarters, product description, amount raised, lead investors, sources

## Autumn AI's plans (6)

- [Autumn AI, $20 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/20-monthly/llms.txt): 15% complete, live
- [Autumn AI, $75 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/75-monthly/llms.txt): 15% complete, live
- [Autumn AI, $280 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/280-monthly/llms.txt): 15% complete, live
- [Autumn AI, $850 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/850-monthly/llms.txt): 15% complete, live
- [Autumn AI, $2,400 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/2400-monthly/llms.txt): 15% complete, live
- [Autumn AI, contact us](https://datacircle.dev/company-discovery-apis/autumn-ai/contact-us/llms.txt): 15% complete, live

## Autumn AI's calls (1)

- `POST /task`: [Autumn AI, $20 monthly](https://datacircle.dev/company-discovery-apis/autumn-ai/20-monthly/llms.txt)

## Autumn AI's APIs (5)

- [Autumn AI: company discovery API pricing, 6 plans](https://datacircle.dev/company-discovery-apis/autumn-ai/20-monthly/llms.txt)
- [Autumn AI: company enrichment API pricing, 6 plans](https://datacircle.dev/company-enrichment-apis/autumn-ai/20-monthly/llms.txt)
- [Autumn AI: email finder API pricing, 6 plans](https://datacircle.dev/find-email-apis/autumn-ai/20-monthly/llms.txt)
- [Autumn AI: people search API pricing, 6 plans](https://datacircle.dev/people-search-apis/autumn-ai/20-monthly/llms.txt)
- [Autumn AI: people enrichment API pricing, 6 plans](https://datacircle.dev/person-enrichment-apis/autumn-ai/20-monthly/llms.txt)

## Autumn AI: company discovery API alternatives

- [Ujeebu, $49 monthly](https://datacircle.dev/company-discovery-apis/ujeebu/49-monthly/llms.txt): 15% complete, live
- [Pangolinfo, $19 monthly, Starter, POST /api/v3/extract/search/maps](https://datacircle.dev/company-discovery-apis/pangolinfo/19-monthly-starter-post-api-v3-extract-search-maps/llms.txt): 15% complete, live
- [Piloterr, $49 monthly, Premium, GET /v2/pitchbook/search](https://datacircle.dev/company-discovery-apis/piloterr/49-monthly-premium-get-v2-pitchbook-search/llms.txt): 15% complete, live
- [WebScrapingAPI, $28 monthly](https://datacircle.dev/company-discovery-apis/webscrapingapi/28-monthly/llms.txt): 15% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://api.autumn.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/docs/api-reference/tasks/start-a-task?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/docs/api-routes.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/docs/api/rate-limits.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/docs/concepts/outputs.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/docs/guides/structured-output.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.autumn.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing