# Candid

**Canonical:** https://apis.io/providers/candid/  
**Website:** https://candid.org  
**APIs profiled:** 9

Candid (formed from the 2019 merger of Foundation Center and GuideStar) helps social sector organizations advance their missions by sharing information, breaking down barriers, and improving giving. Candid maintains the most comprehensive set of data on U.S. nonprofits, foundations, grants, and philanthropy, and exposes that data through a family of developer APIs — Essentials, Premier, Charity Check, Demographics, Grants, News, Taxonomy, Eligibility, and PDF/Bulk variants — available through the Candid Developer Portal.

## Kin Score — 33.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 33.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 57.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (9)

- **Candid Premier API** — Deep nonprofit profile data. Returns comprehensive records for a given organization including financials, programs, leadership, board, grants received and awarded, operating det...
- **Candid Charity Check API** — Real-time nonprofit verification and compliance screening used for due diligence, donation compliance, and tax-deductibility checks. Returns IRS 501(c)(3) status, revocation his...
- **Candid Demographics API** — Structured demographic data voluntarily provided by nonprofits about their staff, board, and populations served. Enables funders and platforms to analyze equity, diversity, and ...
- **Candid Grants API** — Access to Candid's global grants dataset — summary statistics, funders, recipients, and individual transaction records. Useful for philanthropic benchmarking, funder research, a...
- **Candid News API** — Search and retrieve philanthropic news content from Candid's curated news database covering funders, grantees, sector trends, and policy. Supports customizable parameters for da...
- **Candid Taxonomy API** — Returns Candid's philanthropic classification system (subject, population, support-strategy, and geographic area taxonomies) so integrators can consistently tag and query nonpro...
- **Candid Nonprofit Eligibility API** — Evaluates whether a given nonprofit is eligible to receive a grant or donation based on configurable rules — IRS status, country, OFAC, custom program criteria — to automate gra...
- **Candid Lookup API** — Operations for retrieving lookup values and filter metadata.
- **Candid Search API** — Operations for searching the Candid nonprofit database.

## Agentic access (1)

- **Candid Agentic Access** — 7 operations · 4 acting

## Security (2)

- **Candid Authentication** — apiKey · 1 scheme
- **Candid Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Candid Plans Pricing**

## Tags

Charities, Donations, Non-Profit, Philanthropy, Foundations, Grants, 990s, Demographics

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/candid/). Scores are computed from the provider's own public artifacts under a published rubric.