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501c3.HELP nonprofit compliance

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

Connector by 501c3.helpOfficial · Domain verified by the MCP Registry

IndexedLicense unknownRemote (HTTP)
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Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/501c3-help-compliance

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://mcp.501c3.help/ Remote (HTTP)

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About

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

Reviews

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No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
3 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
Nothing to install (hosted)
Runs as
Hosted (remote endpoint)

Tools by what they do 3

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 3 · Look things up without changing anything.

  • compare_states
  • get_filing_deadlines
  • get_state_requirements

Network hosts it talks to 1

  • mcp.501c3.help · found in remote endpoint, install command

Tools (3)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • 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 presented as a settled rule. Accepts up to eight states.

  • 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 unconfirmed.

  • 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 are unsettled and must be presented as such, never as a settled rule. Optionally narrow by topic. Returns a limited number of records, not the whole state.

Signals

Last release
Oct 1, 2026 (28 days ago)

Details

Registry name
help.501c3/compliance
Version
0.1.1
Auth
Auth not stated
License
License unknown
Website
501c3.help/license/
First seen
Oct 24, 2026
Last checked
Oct 25, 2026
Source
Official MCP Registry
Cite this page

501c3.HELP nonprofit compliance MCP server. Agent Mart. https://agentmart.dev/connectors/501c3-help-compliance (last updated 2026-10-25)