Propublica Nonprofit is answering right now. Last checked moments ago. It exposes 39 tools. Last commit 13 Sep 2026.
ProPublica Nonprofit MCP — ProPublica Nonprofit Explorer API (free, no auth)
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 August 2026. No other catalogue keeps this.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.
claude mcp add propublica-nonprofit --transport http https://gateway.pipeworx.io/propublica-nonprofit/mcp
{
"mcpServers": {
"propublica-nonprofit": {
"url": "https://gateway.pipeworx.io/propublica-nonprofit/mcp"
}
}
}
[mcp_servers.propublica-nonprofit]
url = "https://gateway.pipeworx.io/propublica-nonprofit/mcp"
{
"mcpServers": {
"propublica-nonprofit": {
"url": "https://gateway.pipeworx.io/propublica-nonprofit/mcp"
}
}
}
{
"mcpServers": {
"propublica-nonprofit": {
"url": "https://gateway.pipeworx.io/propublica-nonprofit/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
polymarket_arbitrage
polymarket_edge_tracker
polymarket_edges
polymarket_fill_risk
polymarket_kalshi_spread
ask_pipeworx
ask_pipeworx_beta
ask_pipeworx_grounded
pipeworx_feedback
pipeworx_trending
recent_alerts
recent_changes
resolution_audit
resolution_diff
scan_competitor_ai_presence
scan_dependency
bet_research
company_facts
compare_entities
deep_research
discover_tools
entity_profile
get_filing
forget
generate_llms_txt
kalshi_weather_edge
search_nonprofits
get_organization
recall
release_calendar_markets
remember
resolve_entity
subscribe
list_subscriptions
suggest_questions
unsubscribe
validate_claim
ai_visibility_check
search_within
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://gateway.pipeworx.io/propublica-nonprofit/mcp | streamable-http | answering | 103 ms | 0 min ago |
EDGAR MCP — SEC EDGAR public APIs (free, no auth)
SEC MCP — SEC EDGAR public APIs (free, no auth)
FBI Wanted MCP — FBI Wanted public API (free, no auth)
Iconify MCP — wraps the Iconify public API (free, no auth)
SBIR MCP — wraps the SBIR.gov public API (free, no auth)
Chess.com MCP — wraps the Chess.com public API (free, no auth)
RubyGems MCP — wraps the RubyGems.org public API (free, no auth)
Bored MCP — wraps Bored API (free, no auth)
Answers built from our own checks of this server.