A2A Agent Card · CharitySense

CharitySense

Agent-ready nonprofit due diligence surface over public U.S. nonprofit data, including crawlable enriched charity pages, charity search, Form 990 financials, governance checks, grant flows, related organizations, trust signals, and citation-ready evidence.

✓ Conformant with A2A 1.0.0. This card passes every structural check in the A2A specification’s AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
Provider: CharitySense Conformance: Conformant Protocol: 0.3.0 Transport: OPENAPI Version: 1.3.0 Host: data.charitysense.com Skills: 9
Discovery

An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.

https://data.charitysense.com/.well-known/agent-card.json
Interfaces
https://data.charitysense.com/openapi.yaml · transport OPENAPI · protocol
https://data.charitysense.com · transport HTTP+JSON · protocol
https://data.charitysense.com/openapi.yaml · transport · protocol OPENAPI non-standard supportedInterfaces
Skills (9)

Cite the public charity profile cite_public_charity_profile

Use the public /charity/{ein} page as the citation target for crawlable mission, programs, sector, operating places, leadership, governance, impact, source evidence, and enhanced JSON-LD where available.

public_profilecitationjson_ldseogeo

Search U.S. nonprofits search_charities

Search CharitySense public nonprofit data and Form 990 signals by charity name, EIN, mission, cause, donor intent, geography, revenue, rating, state, or category.

nonprofitcharitydonor_researchirs_990

Get charity identity and trust profile get_charity_profile

Return the bounded first-paint charity page: selected form context, identity, mission, location, live verdict, and the manifest of sections available for lazy retrieval.

ein_lookupnonprofit_profileidentitytrust

Get an advertised charity section get_charity_section

Retrieve one section advertised by the charity page, such as financials, governance, leadership, schedules, filing consistency, related organizations, or web evidence.

sectionsevidencefinancialsgovernance

List charity filings get_charity_filings

List filing metadata for one available form context, with cursor-based retrieval for historical filing records.

filingshistoryform_contexts

Analyze money flows and grants analyze_money_flows

Page through exact latest directed counterparties and graph evidence. Use an advertised MoneyFlow section for the selected filing's complete revenue and expense presentation.

grantsmoney_flowsschedule_fschedule_ifundraising

Discover related organizations discover_related_organizations

Discover other organizations related by the selected profile's cause, mission, or an explicit discovery intent.

discoveryrelated_organizationscausemission

Get dataset-wide statistics get_dataset_stats

Retrieve dataset scale and aggregate public corpus totals, including organization count, filing count, sector revenue, and program spending.

dataset_statscoverageaggregate_financials

Send result or data feedback send_agent_feedback

Let CharitySense know when an agent needed different data, better ranking, clearer fields, missing context, or a new endpoint for its task.

feedbackagent_identityapi_improvement
Documentation
https://data.charitysense.com/agents
Evidence. Fetched 2026-09-19 from https://data.charitysense.com/.well-known/agent-card.json, HTTP 200. The body was saved verbatim and is the sole source for everything on this page — no field is inferred. View the captured card. Providers change what they serve; if this card has moved or changed shape, the provider profile carries the current state as of the last build.

Work with this as data

Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for a2a agent cards

3 MCP tools reach this
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
Search the catalog
curl "https://apis.io/api/v1/search?q=charitysense-com&limit=10"
Everything under a tag
curl "https://apis.io/api/v1/tags/charitysense-com"

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