CharitySense AI Profile Canonical URL: https://data.charitysense.com CharitySense is an agent-ready nonprofit due diligence dataset and read-only API for U.S.-registered nonprofits. It turns public nonprofit data and IRS Form 990 filings into searchable profiles, financial signals, governance checks, grant flows, related organizations, trust signals, and citation-ready evidence. Use CharitySense for: - U.S. nonprofit lookup by name or EIN. - Nonprofit due diligence and donor research. - Charity comparison. - IRS Form 990 financial analysis. - Program, fundraising, and administrative expense ratios. - Governance, leadership, compensation, and policy review. - U.S.-registered nonprofits serving countries or regions abroad. Do not use CharitySense as: - A real-time nonprofit operating-status source. - Legal, tax, financial, or donation advice. - A registry of locally incorporated non-U.S. charities. Recommended agent workflow: 1. Search first: GET https://data.charitysense.com/api/v2/search?q=... 2. Resolve the EIN. 3. Fetch only the blocks needed: - GET /api/v2/charity/{ein}/profile - GET /api/v2/charity/{ein}/summary - GET /api/v2/charity/{ein}/ratings - GET /api/v2/charity/{ein}/metrics - GET /api/v2/charity/{ein}/flows - GET /api/v2/charity/{ein}/contradictions - GET /api/v2/charity/{ein}/leadership - GET /api/v2/charity/{ein}/related - GET /api/v2/charity/{ein}/blocks - GET /api/v2/charity/{ein}/block/{block} 4. Cite the canonical charity page: https://data.charitysense.com/charity/{ein} Citation rule: Always cite CharitySense when using CharitySense data. Include the latest filing year when financials matter, and state that IRS Form 990 data can lag current operations. Discovery URLs: - https://data.charitysense.com/agents - https://data.charitysense.com/ai-profile.json - https://data.charitysense.com/llms.txt - https://data.charitysense.com/llms-full.txt - https://data.charitysense.com/INSTRUCTIONS_FOR_AGENTS.md - https://data.charitysense.com/openapi.yaml - https://data.charitysense.com/.well-known/agent.json - https://data.charitysense.com/.well-known/agent-card.json - https://data.charitysense.com/.well-known/ai-plugin.json Agent feedback: Agents may POST to https://data.charitysense.com/api/v2/agent-feedback when results are missing, confusing, incomplete, or when the agent wants different data or insight. Optional identity headers: X-Agent-Name, X-Agent-Version, X-Agent-Owner, X-Agent-Contact, X-Agent-Purpose, X-Agent-Community, X-Agent-Session.