# A-Leads, free: Similar companies API

> Run the same people and company search you use in the product—filters, paging, and export-friendly payloads.

A-Leads's similar companies API on its Free trial plan. It costs $0.00 per 1,000 companies. It returns 6 of the 13 key fields we check: Match, Description, Industry and type, Employees, Headquarters, Domain.
We haven't run A-Leads through [our similar companies API benchmark](https://datacircle.dev/best-similar-companies-api.txt) yet.
This plan is free. We rank 120 plans for similar companies APIs by price. Half the plans cost $1.265 per 1,000 companies or less.
[PublicWWW's $499 monthly plan](https://datacircle.dev/similar-company-apis/publicwww/499-monthly/llms.txt) costs the least per 1,000 companies: $0.000055. PublicWWW charges for each page of results. We count 1,000,000 companies on each page to get the $0.000055 price.
[ZoomInfo's $45 pack](https://datacircle.dev/similar-company-apis/zoominfo/45-pack/llms.txt) covers any number of companies. ZoomInfo's $45 pack costs less up front than PublicWWW's $499 monthly plan.
[LeadMagic](https://datacircle.dev/similar-company-apis/leadmagic/499-monthly-professional-post-v3-companies-lookalike/llms.txt), [Tomba](https://datacircle.dev/similar-company-apis/tomba/449-monthly/llms.txt) and [Social Fetch](https://datacircle.dev/similar-company-apis/social-fetch/14-pack/llms.txt) are the best similar companies API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/similar-company-apis/a-leads/free
- [Similar companies API: 9 providers compared](https://datacircle.dev/best-similar-companies-api.txt)
- Get it: https://a-leads.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- Request: `POST https://api.a-leads.co/gateway/v1/company-search/similar`
- API key: with the plan, on https://a-leads.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- Its API docs: https://docs.a-leads.co/reference/post_similar.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- Sold by: A-Leads (https://a-leads.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 46%
- Match: ✓
- Description: ✓
- Industry and type: ✓
- Employees: ✓
- Headquarters: ✓
- Domain: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page, size not stated
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Advanced Search · Find Email · Find Personal Email · Verify Email · Find Phone Number · Company Search · Company Details by ID · Reverse Email Lookup · Bulk Advanced Search · Perform Bulk Company Search

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Run the same people and company search you use in the product—filters, paging, and export-friendly payloads.

## Data

- Keep data: during the applicable Subscription Term
- Use data: a limited, non-exclusive, non-transferable, non-sublicensable license during the applicable Subscription Term to access and use the Service and related Documentation solely for Customer’s internal business operations [...] The Service may not be resold, sub-licensed, leased, rented, assigned, shared, or otherwise transferred to any third party except as expressly permitted in this Agreement or in an Order Form approved by the Company. Data outputs or reports derived from the Service may not be republished or used to create a competing database or service. [...] Customer and Authorized Users shall not access the Service for purposes of monitoring its availability, performance, or functionality, or for any other competitive or benchmarking analysis without the Company’s written approval.

## Plan

- Pay: $0

## Rate limit

- Per day: 6,000
- Per second: 0.17

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: company_ids, page, page_size
- Method: POST
- Path: /similar

## About the plan

- Plan: Free trial
- Who can get it: anyone who doesn't directly compete with A-Leads in lead intelligence, data analytics or similar software

## The 18 fields the plan's answer can hold

message status, message status code, message description, categories and keywords, website, company ID, company headcount, industry, LinkedIn URL, mapped company size, HQ address, domain, company name, size range, employees count, description, document ID, relevance score

## A-Leads's plans (8)

- [A-Leads, free](https://datacircle.dev/similar-company-apis/a-leads/free/llms.txt): $0.00 per 1,000, 46% complete
- [A-Leads, $60 monthly](https://datacircle.dev/similar-company-apis/a-leads/60-monthly/llms.txt): 46% complete
- [A-Leads, $99 monthly](https://datacircle.dev/similar-company-apis/a-leads/99-monthly/llms.txt): 46% complete
- [A-Leads, $199 monthly](https://datacircle.dev/similar-company-apis/a-leads/199-monthly/llms.txt): 46% complete
- [A-Leads, $600 yearly](https://datacircle.dev/similar-company-apis/a-leads/600-yearly/llms.txt): 46% complete
- [A-Leads, $984 yearly](https://datacircle.dev/similar-company-apis/a-leads/984-yearly/llms.txt): 46% complete
- [A-Leads, $1,980 yearly](https://datacircle.dev/similar-company-apis/a-leads/1980-yearly/llms.txt): 46% complete
- [A-Leads, contact us](https://datacircle.dev/similar-company-apis/a-leads/contact-us/llms.txt): 46% complete

## A-Leads's calls for this API (1)

- `POST /similar`: [A-Leads, free](https://datacircle.dev/similar-company-apis/a-leads/free/llms.txt)

## A-Leads's APIs (8)

- [A-Leads: company discovery API pricing, 8 plans](https://datacircle.dev/company-discovery-apis/a-leads/free/llms.txt)
- [A-Leads: company enrichment API pricing, 8 plans](https://datacircle.dev/company-enrichment-apis/a-leads/free/llms.txt)
- [A-Leads: similar companies API pricing, 8 plans](https://datacircle.dev/similar-company-apis/a-leads/free/llms.txt)
- [A-Leads: email verification API pricing, 8 plans](https://datacircle.dev/validate-email-apis/a-leads/free/llms.txt)
- [A-Leads: phone finder API pricing, 8 plans](https://datacircle.dev/find-phone-apis/a-leads/free/llms.txt)
- [A-Leads: people search API pricing, 8 plans](https://datacircle.dev/people-search-apis/a-leads/free/llms.txt)
- [A-Leads: reverse email lookup API pricing, 8 plans](https://datacircle.dev/reverse-email-lookup-apis/a-leads/free/llms.txt)
- [A-Leads: email finder API pricing, 8 plans, POST /find-email](https://datacircle.dev/find-email-apis/a-leads/free-trial-post-find-email/llms.txt)
- [A-Leads: email finder API pricing, 8 plans, POST /find-email/personal](https://datacircle.dev/find-email-apis/a-leads/free-trial-post-find-email-personal/llms.txt)

## A-Leads: similar companies API alternatives

- [Tomba, free](https://datacircle.dev/similar-company-apis/tomba/free/llms.txt): $0.00 per 1,000, 15% complete, stored
- [Social Fetch, free](https://datacircle.dev/similar-company-apis/social-fetch/free/llms.txt): $0.00 per 1,000, 46% complete, live
- [ZenRows, free (agent storefront)](https://datacircle.dev/similar-company-apis/zenrows/free-agent-storefront/llms.txt): $0.00 per 1,000, 23% complete, live
- [The Companies API, free](https://datacircle.dev/similar-company-apis/the-companies-api/free/llms.txt): $0.00 per 1,000, 92% complete, stored
- [YepAPI, free](https://datacircle.dev/similar-company-apis/yepapi/free/llms.txt): $0.00 per 1,000, 15% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://a-leads.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://a-leads.co/_astro/pricing-section.n0Zcmnpc.js?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://a-leads.co/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://a-leads.co/legal/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://a-leads.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://docs.a-leads.co/docs/mcp.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://docs.a-leads.co/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://docs.a-leads.co/reference/post_similar.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://support.a-leads.co/credits-and-billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://support.a-leads.co/getting-started?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing