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Duffel

by io.github.pipeworx-io
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Duffel MCP — live flight search + pricing via the Duffel Flights API (duffel.com)

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Status
Unhealthy
Uptime
49.5% over 38 days
Last Tested
Transport
Streamable HTTP
URL
Repository
pipeworx-io/mcp-duffel
GitHub Stars
0
Server Listing
mcp-duffel

TDQS

A3.9/5.0

Scored across 36 tools

Disambiguation3/5

Several tools overlap heavily: ask_pipeworx, ask_pipeworx_beta, ask_pipeworx_grounded, and deep_research all route questions to the same 6,020 tools, with beta currently identical to stable. Polymarket tools (polymarket_edges, polymarket_arbitrage, polymarket_edge_tracker, polymarket_fill_risk, polymarket_kalshi_spread) also share boundaries, though descriptions do differentiate them somewhat.

Naming Consistency3/5

Most tools use snake_case verb_noun or noun_verb patterns (ask_pipeworx, bet_research, compare_entities, resolve_entity), but there are deviations like ai_visibility_check, generate_llms_txt, and the polymarket_* family which mix styles. The naming is readable but not uniform.

Tool Count2/5

36 tools is heavy for a single server, and many are meta-tools or variations on the same core routing (ask_pipeworx, ask_pipeworx_beta, ask_pipeworx_grounded, deep_research, discover_tools, suggest_questions). The count feels bloated rather than well-scoped.

Completeness4/5

The server covers a broad data domain well: lookup, grounded verification, entity resolution, comparison, research, subscriptions, memory, and feedback. Minor gaps exist (e.g., no direct tool for updating stored memories beyond forget/recall, and some categories like court are intentionally empty), but the surface is largely complete for its stated purpose.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 4 tool updates
    • Addedkalshi_weather_edge
    • Addedrelease_calendar_markets
    • Addedresolution_audit
    • Addedresolution_diff
  2. 1 tool update
    • Changedbet_research2 fields changed
      • changedInput schema / examples
        Previous value: -[
-  {
-    "market": "when-will-bitcoin-hit-150k"
-  },
-  {
-    "market": "https://polymarket.com/event/when-will-bitcoin-hit-150k"
-  }
-]New value: +[
+  {
+    "market": "will-kristi-noem-win-the-2028-republican-presidential-nomination"
+  },
+  {
+    "market": "https://polymarket.com/event/will-kristi-noem-win-the-2028-republican-presidential-nomination"
+  }
+]
      • changedInput schema / properties / market / description
        Previous value: -"Polymarket slug (\"when-will-bitcoin-hit-150k\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."New value: +"Polymarket slug (\"will-kristi-noem-win-the-2028-republican-presidential-nomination\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."
  3. 2 tool updates
    • Changedbet_research2 fields changed
      • changedInput schema / examples
        Previous value: -[
-  {
-    "market": "will-bitcoin-reach-100k-in-july-2026"
-  },
-  {
-    "market": "https://polymarket.com/event/will-bitcoin-hit-150k-by-june-30-2026"
-  }
-]New value: +[
+  {
+    "market": "when-will-bitcoin-hit-150k"
+  },
+  {
+    "market": "https://polymarket.com/event/when-will-bitcoin-hit-150k"
+  }
+]
      • changedInput schema / properties / market / description
        Previous value: -"Polymarket slug (\"will-bitcoin-hit-150k-by-june-30-2026\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k by June 30?\")"New value: +"Polymarket slug (\"when-will-bitcoin-hit-150k\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."
    • Changedpolymarket_kalshi_spread2 fields changed
      • changedInput schema / examples
        Previous value: -[
-  {
-    "topic": "fed"
-  },
-  {
-    "topic": "btc"
-  }
-]New value: +[
+  {
+    "topic": "fed"
+  },
+  {
+    "topic": "btc"
+  },
+  {
+    "topic": "bitcoin"
+  },
+  {
+    "topic": "fed rate decision"
+  }
+]
      • changedInput schema / properties / topic / description
        Previous value: -"Pre-mapped: fed | btc | cpi | gdp | sp500 | recession | next_pope | next_uk_pm | next_israel_pm | 2028_president"New value: +"Subject to compare. Canonical keys: fed | btc | eth | cpi | gdp | sp500 | recession | next_pope | next_uk_pm | next_israel_pm | 2028_president — but aliases and keywords resolve too (\"bitcoin\", \"fed rate decision\", \"ethereum\", \"inflation\", \"s&p 500\", \"us recession\", \"next pope\", \"2028 election\"). Check resolution.topic_matched_by in the response: \"exact\"/\"alias\" is a curated pairing, \"phrase\"/\"token\" is a keyword guess."

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