# CharitySense Data API **Canonical:** https://apis.io/apis/charitysense-com/charitysense-data-api/ **Provider:** CharitySense — https://apis.io/providers/charitysense-com/ **Base URL:** https://data.charitysense.com **Documentation:** https://data.charitysense.com/developers CharitySense Data API is published by [CharitySense](https://apis.io/providers/charitysense-com/) on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Non-Profit, Charities, Due Diligence, IRS Form 990, and Donor Research. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, and rate-limit docs. Canonical REST API for U.S. nonprofit due diligence compiled from public IRS Form 990 filings and official-source profile enrichment. 21 operations across five tags: Profiles (bounded charity page, advertised sections, filings, brand icon, money network, awards, subawards, grantees, funders), Discovery (identity and discovery search, top lists, cohort funders, related-organization discovery, bulk diligence summary), Dataset (health, stats), Assistant (charity question, agent feedback, capabilities, SSE chat stream) and Usage (per-key daily allowance). Public research GETs need no token and are limited to 1,000 requests per UTC day per client; derived reads and every POST are Advanced operations that require a paid bearer token or X-CharitySense-API-Key and return 403 EntitlementRequired anonymously. Responses use UpperCamelCase fields. Published as OpenAPI 3.1.0 at https://data.charitysense.com/openapi.yaml with servers[] https://data.charitysense.com. ## Operations (21) | Method | Path | Summary | |---|---|---| | GET | `/api/v2/health` | Check API liveness. | | GET | `/api/v2/usage` | Get the active API key's current UTC-day data and Advanced usage. | | GET | `/api/v2/stats` | Get published dataset statistics. | | GET | `/api/v2/top-lists` | Browse the largest current filers in each cause, with live ratings. | | GET | `/api/v2/search` | Search canonical organization identity or discovery indexes. | | GET | `/api/v2/charity/{ein}/page` | Get the bounded first-paint profile payload. | | GET | `/api/v2/charity/{ein}/brand-icon` | Read the nonprofit icon bytes from the canonical website-enrichment record. | | GET | `/api/v2/charity/{ein}/sections/{SectionId}` | Get one section advertised by the page manifest. | | GET | `/api/v2/charity/{ein}/filings` | List filing metadata for one form context. | | GET | `/api/v2/charity/{ein}/money-network` | Page through exact latest-filing counterparties. | | GET | `/api/v2/charity/{ein}/awards` | Page through every federal award this organization holds. | | GET | `/api/v2/charity/{ein}/subawards` | Page through subawards received, with their prime awards. | | GET | `/api/v2/charity/{ein}/grantees` | List the organizations this one has funded. | | GET | `/api/v2/charity/{ein}/funders` | List the organizations that have funded this one. | | GET | `/api/v2/funders/for-cohort` | Find the funders backing a set of organizations. | | GET | `/api/v2/charity/{ein}/discovery` | Discover organizations related by cause or region. | | GET | `/api/v2/charity/diligence-summary` | Get bulk grant-readiness, financial, and live-rating summaries for up to 25 organizations. | | POST | `/api/v2/charity-question` | Submit a question about one canonical charity profile. | | POST | `/api/v2/agent-feedback` | Submit optional integration or data-quality feedback. | | GET | `/api/v2/assistant/capabilities` | Get the assistant's supported and deferred capabilities. | | POST | `/api/v2/assistant/chat/stream` | Stream a CharitySense research response as server-sent events. | ## Machine-readable artifacts (16) - **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/openapi/charitysense-com-openapi.yml - **OpenAPI** — https://data.charitysense.com/openapi.yaml - **OpenAPI** — https://data.charitysense.com/openapi.json - **Documentation** — https://data.charitysense.com/developers - **APIReference** — https://data.charitysense.com/docs - **APIReference** — https://data.charitysense.com/redoc - **GettingStarted** — https://data.charitysense.com/agents - **AgentInstructions** — https://data.charitysense.com/INSTRUCTIONS_FOR_AGENTS.md - **Overlay** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/overlays/charitysense-com-data-api-overlay.yaml - **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/errors/charitysense-com-problem-types.yml - **DataModel** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/data-model/charitysense-com-data-model.yml - **Conventions** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/conventions/charitysense-com-conventions.yml - **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/lifecycle/charitysense-com-lifecycle.yml - **RateLimits** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/rate-limits/charitysense-com-rate-limits.yml - **Plans** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/plans/charitysense-com-plans-pricing.yml - **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/charitysense-com/refs/heads/main/apis.yml ## Tags Non-Profit, Charities, Due Diligence, IRS Form 990, Donor Research, Grants, Search --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/charitysense-com/charitysense-data-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/charitysense-com/.