# Kernel, free, Starter allocation, POST /v1/entity-resolution: Company enrichment API

> Send a messy record, a name and a domain, and get back a resolved entity. Anchored to a persistent KERN ID that survives rebrands, domain changes, and acquisitions.

Kernel's Starter allocation plan for the company enrichment API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. Kernel's docs list 2: Type and status, Social profiles.
We haven't run Kernel through [our company enrichment API benchmark](https://datacircle.dev/best-company-enrichment-api.txt) yet.
We rank 3,016 plans for company enrichment APIs by price. Half the plans cost $8.977 or less per 1,000 companies. This plan and 213 others tie for the lowest price per 1,000 companies of the 3,016 plans. [See the best free company enrichment API plan.](https://datacircle.dev/best-company-enrichment-api.txt)
[APIs Peru's PEN 30 (about $9) monthly plan](https://datacircle.dev/company-enrichment-apis/apis-peru/pen-30-monthly/llms.txt) covers any number of companies in Peru only. APIs Peru's PEN 30 (about $9) monthly plan costs less up front than Coldlytics's $49 monthly plan.
[GLEIF](https://datacircle.dev/company-enrichment-apis/gleif/free/llms.txt), [TrustMRR](https://datacircle.dev/company-enrichment-apis/trustmrr/free/llms.txt) and [GetProspect](https://datacircle.dev/company-enrichment-apis/getprospect/49-monthly-starter-post-v2-companies-enrich/llms.txt) are the best company enrichment API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/company-enrichment-apis/kernel/free-starter-allocation-post-v1-entity-resolution
- [Company enrichment API in 2026: the best of 260+ compared](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://www.kernel.ai/kernel-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Request: `POST https://api.kernel.ai/rest/v1/entity-resolution`
- API key: with the plan, on https://www.kernel.ai/kernel-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Its API docs: https://dev.kernel.ai/api-reference/endpoint/create-entity-resolution?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Sold by: Kernel (https://www.kernel.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 15%
- Type and status: ✓
- Social profiles: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Enrich firmographics · Resolve parent

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Send a messy record, a name and a domain, and get back a resolved entity. Anchored to a persistent KERN ID that survives rebrands, domain changes, and acquisitions.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: by polling or webhook

## The call

- You send: nothing required. Optional: legal_name, trading_name, website, linkedin_url, country, city, state, postal_code, address, email, phone, external_id, company_registration_number, company_registration_country, kernel_id, match_to_linkedin, identity_bias, webhook_url
- Method: POST
- Path: /v1/entity-resolution

## About the plan

- Plan: Starter allocation
- Who can get it: builders Kernel approves after a request form (name, work email, company, what you want to build), access isn't instant

## The 27 fields the plan's answer can hold

Kernel ID, previous Kernel IDs, external ID, company registration number, company registration country, company registration source, identity type, identity confidence, identity reasoning, legal name, legal trading name, legal website, legal country, legal confidence, legal reasoning, trading name, trading website, trading country, trading confidence, trading reasoning, entity type, entity subtype, entity classification reasoning, LinkedIn URL, LinkedIn slug, LinkedIn match type, LinkedIn match reasoning

## Kernel's plans (1)

- [Kernel, free, Starter allocation, POST /v1/entity-resolution](https://datacircle.dev/company-enrichment-apis/kernel/free-starter-allocation-post-v1-entity-resolution/llms.txt): $0.00 per 1,000, 15% complete

## Kernel's calls for this API (2)

- `POST /v1/firmographics`: [Kernel, free, Starter allocation, POST /v1/firmographics](https://datacircle.dev/company-enrichment-apis/kernel/free-starter-allocation-post-v1-firmographics/llms.txt)
- `POST /v1/entity-resolution`: [Kernel, free, Starter allocation, POST /v1/entity-resolution](https://datacircle.dev/company-enrichment-apis/kernel/free-starter-allocation-post-v1-entity-resolution/llms.txt)

## Kernel's APIs (2)

- [Kernel: company hierarchy API pricing, 1 plan](https://datacircle.dev/company-hierarchy-apis/kernel/free/llms.txt)
- [Kernel: company enrichment API pricing, 1 plan, POST /v1/entity-resolution](https://datacircle.dev/company-enrichment-apis/kernel/free-starter-allocation-post-v1-entity-resolution/llms.txt)

## Kernel: company enrichment API alternatives

- [jobContext, free](https://datacircle.dev/company-enrichment-apis/jobcontext/free/llms.txt): $0.00 per 1,000, 15% complete, stored
- [GovConAPI, free trial, GET /api/v1/entities/by-cage/{cage}](https://datacircle.dev/company-enrichment-apis/govconapi/free-trial-get-api-v1-entities-by-cage-cage/llms.txt): $0.00 per 1,000, 23% complete, 1 month
- [g0v Taiwan Company, free, GET /api/bulkquery](https://datacircle.dev/company-enrichment-apis/g0v-taiwan-company/free-get-api-bulkquery/llms.txt): $0.00 per 1,000, 23% complete, 1 month (tax registry county or city, tax registry district, tax registry business name, tax registry capital, tax registry establishment date, tax registry uses uniform invoices, tax registry industry, tax registry industry code, tax registry business address, tax registry person in charge surname, tax registry head office unified business number, tax registry organization type name, tax registry unit name, tax registry authority county or city, tax registry last change reason, tax registry last change date, tax registry reason description: 1 day)
- [Latinfo, free, GET /pe/ruc/{ruc}](https://datacircle.dev/company-enrichment-apis/latinfo/free-get-pe-ruc-ruc/llms.txt): $0.00 per 1,000, 15% 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://dev.kernel.ai/api-reference/endpoint/combined.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/endpoint/create-entity-resolution.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/endpoint/get-credits.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/endpoint/get-entity-resolution.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/introduction.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/api-reference/schemas/entity-resolution-result.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://dev.kernel.ai/guides/api-keys.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://www.kernel.ai/kernel-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing