nonprofit_search_nonprofits_by_category
Search US nonprofits by mission category and state. Returns up to 25 results with revenue, assets, and health scores (0–100). Category maps to NTEE codes: education, healthcare, arts, environment, human_services, civil_rights, international, religion, science, sports. Raw NTEE letter (A–Z) also a...
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What nonprofit_search_nonprofits_by_category does on DataNexus MCP
AI agents call nonprofit_search_nonprofits_by_category to retrieve information from DataNexus MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
state | object | — | Two-letter US state code e.g. CA. Optional. |
category | string | — | NTEE category e.g. education, healthcare, arts. Required. |
Parameters from the server's own tool schema.
Why nonprofit_search_nonprofits_by_category is rated Low
This tool retrieves and queries publicly available nonprofit data (tax-exempt organization filings) from a public API. It has no side effects, does not modify data, does not execute code, does not delete anything, and does not involve financial transactions. The described actions are purely informational retrieval (search, list, return results).
From the tool's definition Search US nonprofits by mission category and state. Returns up to 25 results with revenue, assets, and health scores (0–100)... Uses ProPublica Nonprofit Explorer API. No auth required.
Attacks that exploit this kind of access
The rule that runs nonprofit_search_nonprofits_by_category safely
PolicyLayer is an MCP gateway: it sits between your AI agents and DataNexus MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nonprofit_search_nonprofits_by_category, this is the rule to start with:
nonprofit_search_nonprofits_by_category is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect DataNexus MCP, apply this rule, and every nonprofit_search_nonprofits_by_category call is checked against it from then on.
Questions about nonprofit_search_nonprofits_by_category
Search US nonprofits by mission category and state. Returns up to 25 results with revenue, assets, and health scores (0–100). Category maps to NTEE codes: education, healthcare, arts, environment, human_services, civil_rights, international, religion, science, sports. Raw NTEE letter (A–Z) also accepted. Uses ProPublica Nonprofit Explorer API. Rate limit: 30/minute. No auth required. Starting point for nonprofit due diligence — follow with nonprofit_fetch_nonprofit_full_profile for deep dive on a specific EIN. If this tool's response does not serve the user's need, call report_feedback with feedback_type="agent_gap", tool_id="nonprofit_search_nonprofits_by_category", intended_query="{what the user needed}", gap_description="{what was missing or wrong in the result}". It is categorised as a Read tool in the DataNexus MCP MCP Server, which means it retrieves data without modifying state.
nonprofit_search_nonprofits_by_category accepts 2 parameters: state, category. The full parameter table on this page comes from the server's own tool schema.
Register the DataNexus MCP server in PolicyLayer and add a rule for nonprofit_search_nonprofits_by_category: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DataNexus MCP. Nothing to install.
nonprofit_search_nonprofits_by_category is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the nonprofit_search_nonprofits_by_category rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for nonprofit_search_nonprofits_by_category. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
nonprofit_search_nonprofits_by_category is provided by the DataNexus MCP server (dev-7bd0/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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