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501c3.HELP nonprofit compliance

help.501c3/compliance · v0.1.1

Nonprofit compliance rules for all 50 US states, each with its official citation and status

Connect Remote server

Terminal
claude mcp add --transport http compliance https://mcp.501c3.help/
~/.cursor/mcp.json
{
  "mcpServers": {
    "compliance": {
      "url": "https://mcp.501c3.help/"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "compliance": {
      "type": "http",
      "url": "https://mcp.501c3.help/"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://mcp.501c3.help/

Tools 3 found in our last check

  • get_state_requirements

    Nonprofit compliance requirements for one US state, from 501c3.help's sourced records: formation, governance, charitable solicitation registration, reporting, tax and employment. Every record carries its official citation and a verification status. Records marked review_required…

  • compare_states

    The same compliance topic across several US states, for deciding where to incorporate or for an organization that operates in more than one state. Each state's records carry their own citation and verification status; a record marked review_required is unsettled and must not be…

  • get_filing_deadlines

    Every requirement in one US state that has a filing deadline attached, with the deadline in plain words, the form or portal, the fee, and the official citation. Use this for 'what is due and when'. Deadlines on records marked review_required are not settled and must be shown as…

Details

Endpointhttps://mcp.501c3.help/ (Streamable HTTP)
First published1 Oct 2026
Last updated1 Oct 2026
Registry namehelp.501c3/compliance

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