# AgentKey, free: Company funding API

> Funding rounds of one company by the id from business.company.search / business.company.get: a Crunchbase permalink / uuid (Crunchbase, primary) or a RootData project id (digits, RootData, crypto projects). The server routes on the id form.

AgentKey's Free plan for the company funding API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. AgentKey's docs list 4: Round, Amount, Date, Investors.
We haven't run AgentKey through [our company funding API benchmark](https://datacircle.dev/best-company-funding-api.txt) yet.
This plan is free. We rank 261 plans for company funding APIs by price. Half the plans cost $12.50 or less per 1,000 companies. [See the best free company funding API plan.](https://datacircle.dev/best-company-funding-api.txt)
[Signalbase's €99 monthly plan](https://datacircle.dev/company-funding-apis/signalbase/99-monthly-pro-post-csv-enrichment/llms.txt) is the cheapest paid plan per 1,000 companies: $0.056. [StartupHub.ai's x402 plan](https://datacircle.dev/company-funding-apis/startuphub-ai/pay-as-you-go-x402/llms.txt) costs the least for 10,000 companies a month: $10.00.
[gBizINFO](https://datacircle.dev/company-funding-apis/gbizinfo/free/llms.txt), [Edgrapi](https://datacircle.dev/company-funding-apis/edgrapi/99-monthly/llms.txt) and [The Swarm](https://datacircle.dev/company-funding-apis/the-swarm/500-monthly/llms.txt) are the best company funding API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-funding-apis/agentkey/free
- [Company funding API in 2026: the 17 best of 100+ compared](https://datacircle.dev/best-company-funding-api.txt)
- Get it: https://agentkey.app/pricing.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- Request: `POST https://api.agentkey.app/v2/ops/business.company.funding`
- API key: with the plan, on https://agentkey.app/pricing.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- Its API docs: https://docs.agentkey.app/api-reference/scenario/methods/business-company-funding.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- Sold by: AgentKey (https://agentkey.app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 31%
- Round: ✓
- Amount: ✓
- Date: ✓
- Investors: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 166 other AgentKey calls

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Funding rounds of one company by the id from business.company.search / business.company.get: a Crunchbase permalink / uuid (Crunchbase, primary) or a RootData project id (digits, RootData, crypto projects). The server routes on the id form.

## Data

- Keep data: no limit
- Use data: You may not use the Service to: Collect, process, or compile personal data in violation of applicable privacy laws or without appropriate legal basis, Violate or circumvent the terms of service, robots.txt, or access controls of any third-party platform or website, Scrape, harvest, or extract personal identifiable information (PII) for unauthorized purposes, Build shadow profiles, databases, or surveillance systems targeting individuals without their consent, Engage in unauthorized automated access to platforms that prohibit such access, Facilitate spam, phishing, social engineering, or any deceptive practices, Infringe the intellectual property rights of any third party, Engage in market manipulation, financial fraud, or any activity that violates securities laws, Use the Service to buy, sell, exchange, custody, transfer, or otherwise trade cryptocurrencies, digital assets, or securities, or to provide regulated financial, money-transmission, or payment services, Access, use, or pay for the Service from, or on behalf of any person or entity located in or ordinarily resident in, any country or territory subject to comprehensive economic sanctions or trade embargoes [...], Access or attempt to access data sources in a manner that constitutes unauthorized computer access under applicable law, Resell or redistribute raw Third-Party Data in a manner that violates the originating provider's terms, Use the Service in any way that causes or may cause harm to any individual, entity, or the Service itself.

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: id_or_url. Optional: cursor, limit
- Method: POST
- Path: /v2/ops/business.company.funding

## About the plan

- Plan: Free
- Who can get it: anyone

## The 11 fields the plan's answer can hold

funding round ID, round type, announced date, amount, currency, company ID, company name, investors, lead investors, funding round URL, next page

## AgentKey's plans (7)

- [AgentKey, free](https://datacircle.dev/company-funding-apis/agentkey/free/llms.txt): $0.00 per 1,000, 31% complete
- [AgentKey, $12.90 monthly](https://datacircle.dev/company-funding-apis/agentkey/12-90-monthly/llms.txt): $258.00 per 1,000, 31% complete
- [AgentKey, $39.90 monthly](https://datacircle.dev/company-funding-apis/agentkey/39-90-monthly/llms.txt): $266.00 per 1,000, 31% complete
- [AgentKey, $129.90 monthly](https://datacircle.dev/company-funding-apis/agentkey/129-90-monthly/llms.txt): $216.50 per 1,000, 31% complete
- [AgentKey, $118.80 yearly](https://datacircle.dev/company-funding-apis/agentkey/118-80-yearly/llms.txt): $198.00 per 1,000, 31% complete
- [AgentKey, $358.80 yearly](https://datacircle.dev/company-funding-apis/agentkey/358-80-yearly/llms.txt): $199.333 per 1,000, 31% complete
- [AgentKey, $1,198.80 yearly](https://datacircle.dev/company-funding-apis/agentkey/1198-80-yearly/llms.txt): $166.50 per 1,000, 31% complete

## AgentKey's calls for this API (1)

- `POST /v2/ops/business.company.funding`: [AgentKey, free](https://datacircle.dev/company-funding-apis/agentkey/free/llms.txt)

## AgentKey's APIs (41)

- [AgentKey: company discovery API pricing, 7 plans](https://datacircle.dev/company-discovery-apis/agentkey/free/llms.txt)
- [AgentKey: company enrichment API pricing, 7 plans](https://datacircle.dev/company-enrichment-apis/agentkey/free/llms.txt)
- [AgentKey: company funding API pricing, 7 plans](https://datacircle.dev/company-funding-apis/agentkey/free/llms.txt)
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## AgentKey: company funding API alternatives

- [Messari, pay as you go](https://datacircle.dev/company-funding-apis/messari/pay-as-you-go/llms.txt): $150.00 per 1,000, 31% complete
- [Datamagnet, $300 pack](https://datacircle.dev/company-funding-apis/datamagnet/300-pack/llms.txt): $150.00 per 1,000, 23% complete
- [Interzoid, $7,500 yearly, 100,000 Credits (annual), GET /getprivatecompanydealintel](https://datacircle.dev/company-funding-apis/interzoid/7500-yearly/llms.txt): $156.25 per 1,000, 54% complete, live
- [Coresignal, $5,389 yearly](https://datacircle.dev/company-funding-apis/coresignal/5389-yearly/llms.txt): $179.633 per 1,000, 31% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://agentkey.app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://agentkey.app/pricing.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://agentkey.app/terms.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://api.agentkey.app/v2/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://docs.agentkey.app/api-reference/scenario/methods/business-company-funding.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://docs.agentkey.app/api-reference/scenario/requests.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://docs.agentkey.app/api-reference/scenario/routing-and-pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://docs.agentkey.app/concepts/subscription.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing
- https://docs.agentkey.app/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-funding-api-pricing