# Candid, free: Company discovery API

> Boost your organization search with data on over 1.6 million nonprofits. Access information such as cause area, location, financials, and more.

Candid's Free trial plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. Candid's docs list 5: Type and status, Images, Employees, Headquarters, Phones.
We haven't run Candid through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 1,326 plans for company discovery APIs by price. Half the plans cost $0.498 or less per 1,000 companies. [See the best free company discovery API plan.](https://datacircle.dev/best-company-discovery-api.txt)
[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/candid/free
- [Company discovery API in 2026: the best of 100+ compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://developer.candid.org/reference/getting-access?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://api.candid.org/essentials/v4`
- API key: with the plan, on https://developer.candid.org/reference/getting-access?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://developer.candid.org/reference/essentials_v4?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: Candid (https://candid.org?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 38%
- Type and status: ✓
- Images: ✓
- Employees: ✓
- Headquarters: ✓
- Phones: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page of 25
- Billing: free

## Aggregators

- Aggregators: none

## Not found

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

## In their words

- Their pitch: Boost your organization search with data on over 1.6 million nonprofits. Access information such as cause area, location, financials, and more.

## Data

- Keep data: Licensee shall not [...] store, copy, reproduce [...] other than as specifically permitted herein [...] Upon termination or expiration of the Term [...] Licensee shall cease, and shall cause its Authorized Users to cease, all use of the Candid Data
- Use data: Licensee may [...] Provide access to the Candid Data through the Licensee Site to Licensee Customers by means of the Candid API solely in order to allow Licensee Customers to learn about nonprofit organizations, and Use the Candid Marks within Licensee's Site(s) and in marketing and promotional materials to identify Candid as the source of the Candid Data, and Provide access to the Candid Data by means of the Candid API for additional purposes expressly outlined in Exhibit(s). Licensee shall not, and shall not permit any Authorized User, to: use the Candid API or the Candid Data other than is expressly authorized by this Agreement, republish or distribute information from the Candid API [...] except as expressly permitted herein, modify information from the Candid API, [...] store, copy, reproduce, publish, republish, modify, upload, post, translate, scrape, rent, lease, loan, sell, distribute, sublicense [...] or in any manner commercially exploit the materials or the Candid API or otherwise distribute in any way the content on the Site other than as specifically permitted herein, [...] create any derivative product from the Candid Data, [...] use any data mining, robots or similar data gathering and extraction methods with respect to the Candid API or the Candid Data in order to (1) create or compile a database or other collection or aggregation of information other than for Licensee's own internal business use, (2) license, sell or otherwise make available to others any such database or collection of information, or (3) to create a service or database that is directly competitive with Candid. [...] Licensee agrees that any web page of the Licensee Site on or through which any Candid Data may be accessed shall display conspicuously the phrase "Powered by Candid" and the following legend: "© Candid. (www.candid.org)".

## Plan

- Pay: $0
- You get: 500 requests
- Enough for: 500 pages
- Expires: 30 days

## Rate limit

- Per second: 0.17 (10 a minute)
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: search_terms, from, size, sort.sort_by, sort.sort_order, filters.geography.state, filters.geography.zip, filters.geography.radius, filters.geography.msa, filters.geography.city, filters.geography.county, filters.organization.profile_levels, filters.organization.subject_codes, filters.organization.population_served_codes, filters.organization.ntee_major_codes, filters.organization.ntee_minor_codes, filters.organization.subsection_codes, filters.organization.foundation_codes, filters.organization.group_exemption, filters.organization.number_of_employees.min, filters.organization.number_of_employees.max, filters.organization.ruling_year.min, filters.organization.ruling_year.max, filters.organization.properties.bmf_status, filters.organization.properties.pub78_verified, filters.organization.properties.allow_online_giving, filters.organization.properties.dei_submitted, filters.organization.properties.exclude_revoked_organizations, filters.organization.properties.exclude_defunct_or_merged_organizations, filters.organization.properties.relationship_type.parent, filters.organization.properties.relationship_type.subordinate, filters.organization.properties.relationship_type.independent, filters.organization.properties.relationship_type.headquarters, filters.financials.most_recent_year.form_types.f990, filters.financials.most_recent_year.form_types.f990pf, filters.financials.most_recent_year.form_types.f990ez, filters.financials.most_recent_year.form_types.f990n, filters.financials.most_recent_year.total_revenue.min, filters.financials.most_recent_year.total_revenue.max, filters.financials.most_recent_year.total_expenses.min, filters.financials.most_recent_year.total_expenses.max, filters.financials.most_recent_year.total_assets.min, filters.financials.most_recent_year.total_assets.max, filters.financials.required_to_file_990t, filters.financials.a_133_audit_performed, filters.last_updated.start_date, filters.last_updated.end_date, filters.last_updated.date_type
- Method: POST
- Path: /v4

## About the plan

- Plan: Free trial
- Who can get it: anyone who submits the free trial request form, Candid replies by email on how to claim the subscription keys

## The 60 fields the plan's answer can hold

total results, page count, Candid entity ID, organization ID, EIN, organization name, also known as, group exemption, mission, website URL, logo URL, donation page, profile level, profile year, profile link, profile logo, leader name, leader title, contact name, contact email, contact phone, contact title, number of employees, ruling year, BMF status, Pub 78 verified, allows online giving, DEI submitted, revoked, defunct or merged, relationship type, address line 1, address line 2, city, state, ZIP code, MSA, congressional district, county, latitude, longitude, subject codes, population served codes, NTEE code, subsection code, foundation code, form types, fiscal year, total revenue, total expenses, total assets, BMF gross receipts, BMF assets, required to file 990-T, A-133 audit performed, seal last modified, profile last modified, DEI last modified, financials last modified, last modified

## Candid's plans (3)

- [Candid, free](https://datacircle.dev/company-discovery-apis/candid/free/llms.txt): $0.00 per 1,000, 38% complete
- [Candid, contact us, Production subscription](https://datacircle.dev/company-discovery-apis/candid/contact-us-production-subscription/llms.txt): 38% complete
- [Candid, contact us, Sandbox subscription](https://datacircle.dev/company-discovery-apis/candid/contact-us-sandbox-subscription/llms.txt): 38% complete

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

- `POST /v4`: [Candid, free](https://datacircle.dev/company-discovery-apis/candid/free/llms.txt)

## Candid's APIs (3)

- [Candid: company discovery API pricing, 3 plans](https://datacircle.dev/company-discovery-apis/candid/free/llms.txt)
- [Candid: news API pricing, 3 plans](https://datacircle.dev/news-apis/candid/free/llms.txt)
- [Candid: company enrichment API pricing, 3 plans, GET /v1/{ein}](https://datacircle.dev/company-enrichment-apis/candid/free-trial-get-v1-ein/llms.txt)
- [Candid: company enrichment API pricing, 3 plans, POST /v1](https://datacircle.dev/company-enrichment-apis/candid/free-trial-post-v1/llms.txt)
- [Candid: company enrichment API pricing, 3 plans, GET /v4/{ein}](https://datacircle.dev/company-enrichment-apis/candid/free-trial-get-v4-ein/llms.txt)

## Candid: company discovery API alternatives

- [GetProspect, free](https://datacircle.dev/company-discovery-apis/getprospect/free/llms.txt): $0.00 per 1,000, 62% complete, stored
- [Hunter, free, POST /discover](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover/llms.txt): $0.00 per 1,000, 54% complete, stored
- [PeopleSearch.im, free](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free/llms.txt): $0.00 per 1,000, 38% complete, stored
- [AnVendor, free, POST /v1/leads/search](https://datacircle.dev/company-discovery-apis/anvendor/free-post-v1-leads-search/llms.txt): $0.00 per 1,000, 23% complete, stored
- [Builders in Fintech, free](https://datacircle.dev/company-discovery-apis/builders-in-fintech/free/llms.txt): $0.00 per 1,000, 8% 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 2026-11-08.

- https://candid.org/api-free-trial?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://candid.org/api-info-request?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org/page/candid-api-terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org/reference/essentials_v4?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org/reference/get-started-with-essentials?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org/reference/getting-access?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.candid.org/reference/rate-limits-and-thresholds?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing