990.tax nonprofit lookup MCP Tools

990.tax nonprofit lookup exposes 8 tools. Each one has its own page with the configuration for every client that can run this server.

search_nonprofits Read-only

search nonprofits
get_nonprofit_profile Read-only

get nonprofit profile
check_exempt_status Read-only

check exempt status
which_990_form

which 990 form
get_filing_due_date Read-only

get filing due date
get_nonprofit_stats Read-only

get nonprofit stats
get_top_nonprofits Read-only

get top nonprofits
explain_irs_reject_code

explain irs reject code

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

990.tax nonprofit lookup MCP server