Clearfund: follow a donation through every re-granting hop

说明与用途

Clearfund 是一个聊天机器人，使用 IRS 990 数据和 Sanity 可视化捐赠通过中间机构的路径。

问题

Users want to know how many intermediary hops a donation takes before reaching a program, but IRS Form 990 Schedule I tables are rarely read.

结果

Clearfund delivers accurate, source‑linked donation paths without login, enabling transparency of grant flows.

工作流

• 1. User asks a question in the chat UI.
• 2. The agent sends the question to Vercel AI SDK’s streamText, which selects tools.
• 3. Context MCP endpoint supplies background on organizations via a Knowledge Base.
• 4. Custom GROQ tools (traceChain, getGrantsByFunder, getGrantsByRecipient, findIntermediaries) query the Sanity dataset for exact grant data.
• 5. The agent assembles the chain diagram and grant table from tool outputs.
• 6. Each grant entry links to its IRS filing via sourceObjectId.

证据

Clearfund is a chat agent that answers questions like "If I donate to Silicon Valley Community Foundation, how many hops before it reaches a program?"

来源

Each answer comes with: a chain diagram showing each hop, sized by grant amount; a grant table with amounts, years and purposes; a link on every grant to the original IRS filing

来源

The agent connects to the Knowledge Base through the Context MCP endpoint. It reads the entry outline with initial_context, then uses knowledge_base_search and knowledge_base_read to find and open the entries it needs.

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For anything that must be exactly right, the agent also calls four custom tools that run GROQ queries against the dataset.

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