# Canonical, free: Company hierarchy API

> Full detail payload for one company, addressed by domain — the public identifier returned by search, lookup, and similar results.

Canonical's company hierarchy API on its Free plan. It costs $0.00 per 1,000 companies. Canonical's docs list 2 of the 3 fields on our checklist: Parent, Family tree.
We haven't run Canonical through [our company hierarchy API benchmark](https://datacircle.dev/best-company-hierarchy-api.txt) yet.
This plan is free. We rank 96 plans for company hierarchy APIs by price. Half the plans cost $14.458 per 1,000 companies or less. [See how many company hierarchy API plans are free.](https://datacircle.dev/best-company-hierarchy-api.txt)
[DanskCVRAPI's DKK 599 (about $90) monthly plan](https://datacircle.dev/company-hierarchy-apis/danskcvrapi/dkk-599-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: $0.045. DanskCVRAPI's plan covers companies in Denmark only.
[GlobalEntity API's €59 monthly plan](https://datacircle.dev/company-hierarchy-apis/globalentity-api/59-monthly/llms.txt) covers any number of companies in 54 countries only. GlobalEntity API's €59 monthly plan costs less up front than DanskCVRAPI's DKK 599 (about $90) monthly plan.
[DiscoLike](https://datacircle.dev/company-hierarchy-apis/discolike/99-monthly/llms.txt), [Bigdata.com](https://datacircle.dev/company-hierarchy-apis/bigdata-com/50-monthly/llms.txt) and [Magellan Data](https://datacircle.dev/company-hierarchy-apis/magellan-data/375-pack-25000-credits-post-v1-corporate-families/llms.txt) are the best company hierarchy API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-hierarchy-apis/canonical/free
- [Company hierarchy API: the 5 best providers compared](https://datacircle.dev/best-company-hierarchy-api.txt)
- Get it: https://trycanonical.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Request: `GET https://trycanonical.ai/api/v1/companies/{company_domain}/details`
- API key: with the plan, on https://trycanonical.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Its API docs: https://trycanonical.ai/documentation/reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing#tag/companies/GET/api/v1/companies/{company_domain}/details
- Sold by: Canonical (https://trycanonical.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 67%
- Parent: ✓
- Family tree: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Search companies (natural language) · Search companies (NL or structured) · Look up companies by name · Find similar companies · Find people · Look up people by name

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Full detail payload for one company, addressed by domain — the public identifier returned by search, lookup, and similar results.

## Data

- Freshness: stored
- Full family tree: no
- Keep data: during the Subscription Term
- Use data: licence "to access and use the Service and Content solely for your internal personal or business use as expressly permitted by the Service". "You agree that you will not, and will not permit any third party to: copy, reproduce, modify, translate, adapt, create derivative works of, publicly display, publish, distribute, sell, sublicense or otherwise exploit any portion of the Service or the Content, except as expressly permitted by these Terms, redistribute, resell, lease, share, host or otherwise make available the Service or any Content (in original or derivative form) to or for the benefit of any third party, including by way of any service bureau, data feed, white-label or syndication arrangement, use the Service or Content to train, fine-tune, evaluate, benchmark or otherwise develop any artificial intelligence, machine learning or large language model, or to create any product or service that is competitive with the Service, scrape, crawl, harvest, index, mine or otherwise extract data or Content from the Service by automated or manual means, except via interfaces and to the extent expressly authorised by us in writing, [...] circumvent, disable, interfere with or attempt to bypass any security, authentication, rate-limiting, billing, usage tracking or access-control feature of the Service, [...] remove, obscure or alter any proprietary notice, attribution or branding contained in the Service or the Content"

## Plan

- Pay: $0
- You get: 250 credits
- Enough for: 250 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: company_domain
- Method: GET
- Path: /api/v1/companies/{company_domain}/details

## About the plan

- Plan: Free
- Who can get it: anyone aged 18 or over with the legal capacity to enter a binding contract, no card required

## The 9 fields the plan's answer can hold

parent companies, ultimate parent, ownership lineage, subsidiaries, products of, joint ventures, merged companies, other related companies, relationship source

## Canonical's plans (7)

- [Canonical, free](https://datacircle.dev/company-hierarchy-apis/canonical/free/llms.txt): $0.00 per 1,000, 67% complete, stored
- [Canonical, top-up, Extra credits (Pro)](https://datacircle.dev/company-hierarchy-apis/canonical/top-up-extra-credits-pro/llms.txt): $8.00 per 1,000, 67% complete, stored
- [Canonical, top-up, Extra credits (Starter)](https://datacircle.dev/company-hierarchy-apis/canonical/top-up-extra-credits-starter/llms.txt): $10.00 per 1,000, 67% complete, stored
- [Canonical, top-up, Extra credits (Lite)](https://datacircle.dev/company-hierarchy-apis/canonical/top-up-extra-credits-lite/llms.txt): $15.00 per 1,000, 67% complete, stored
- [Canonical, $10 monthly](https://datacircle.dev/company-hierarchy-apis/canonical/10-monthly/llms.txt): $15.015 per 1,000, 67% complete, stored
- [Canonical, $20 monthly](https://datacircle.dev/company-hierarchy-apis/canonical/20-monthly/llms.txt): $10.00 per 1,000, 67% complete, stored
- [Canonical, $100 monthly](https://datacircle.dev/company-hierarchy-apis/canonical/100-monthly/llms.txt): $8.00 per 1,000, 67% complete, stored

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

- `GET /api/v1/companies/{company_domain}/details`: [Canonical, free](https://datacircle.dev/company-hierarchy-apis/canonical/free/llms.txt)

## Canonical's APIs (5)

- [Canonical: company enrichment API pricing, 7 plans](https://datacircle.dev/company-enrichment-apis/canonical/free/llms.txt)
- [Canonical: company hierarchy API pricing, 7 plans](https://datacircle.dev/company-hierarchy-apis/canonical/free/llms.txt)
- [Canonical: similar companies API pricing, 7 plans](https://datacircle.dev/similar-company-apis/canonical/free/llms.txt)
- [Canonical: people search API pricing, 7 plans, POST /api/v1/people/search](https://datacircle.dev/people-search-apis/canonical/free-post-api-v1-people-search/llms.txt)
- [Canonical: people search API pricing, 7 plans, POST /api/v1/people/lookup](https://datacircle.dev/people-search-apis/canonical/free-post-api-v1-people-lookup/llms.txt)
- [Canonical: company discovery API pricing, 7 plans, POST /api/v1/lookup](https://datacircle.dev/company-discovery-apis/canonical/free-post-api-v1-lookup/llms.txt)
- [Canonical: company discovery API pricing, 7 plans, GET /api/v1/search](https://datacircle.dev/company-discovery-apis/canonical/free-get-api-v1-search/llms.txt)
- [Canonical: company discovery API pricing, 7 plans, POST /api/v1/search](https://datacircle.dev/company-discovery-apis/canonical/free-post-api-v1-search/llms.txt)

## Canonical: company hierarchy API alternatives

- [Firmainfo, kr499 monthly, Builder, GET /api/v1/companies/{company_id}/group](https://datacircle.dev/company-hierarchy-apis/firmainfo/kr499-monthly-builder-get-api-v1-companies-company-id-group/llms.txt): $2.015 per 1,000, 67% complete, stored
- [DiscoLike, $99 monthly](https://datacircle.dev/company-hierarchy-apis/discolike/99-monthly/llms.txt): $3.50 per 1,000, 67% complete, stored
- [Skrapp, $999 monthly, Enterprise 250K, GET /api/v3/companies/enrich](https://datacircle.dev/company-hierarchy-apis/skrapp/999-monthly-enterprise-250k-get-api-v3-companies-enrich/llms.txt): $7.992 per 1,000, 33% complete, stored
- [SavvyIQ, top-up from $5](https://datacircle.dev/company-hierarchy-apis/savvyiq/top-up-from-5/llms.txt): $200.00 per 1,000, 100% 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 2026-11-07.

- https://trycanonical.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/api/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/documentation/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/documentation/reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://trycanonical.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing