Library Of Congress is answering right now. Last checked 8 min ago. It exposes 31 tools. Last commit 26 Jun 2026.
Library of Congress (loc.gov) MCP — the world's largest library.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
claude mcp add library-of-congress --transport http https://gateway.pipeworx.io/library-of-congress/mcp
{
"mcpServers": {
"library-of-congress": {
"url": "https://gateway.pipeworx.io/library-of-congress/mcp"
}
}
}
[mcp_servers.library-of-congress]
url = "https://gateway.pipeworx.io/library-of-congress/mcp"
{
"mcpServers": {
"library-of-congress": {
"url": "https://gateway.pipeworx.io/library-of-congress/mcp"
}
}
}
{
"mcpServers": {
"library-of-congress": {
"url": "https://gateway.pipeworx.io/library-of-congress/mcp"
}
}
}
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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
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recent_changes
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compare_entities
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entity_profile
forget
generate_llms_txt
recall
remember
resolve_entity
subscribe
list_subscriptions
suggest_questions
unsubscribe
validate_claim
ai_visibility_check
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| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://gateway.pipeworx.io/library-of-congress/mcp | streamable-http | answering | 43 ms | 8 min ago |
Answers built from our own checks of this server.