Crates
Server Details
Crates.io MCP — wraps the crates.io REST API v1 (free, no auth)
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- Status
- Unhealthy
- Uptime
- 47.2% over 37 days
- Last Tested
- Transport
- Streamable HTTP
- URL
- Repository
- pipeworx-io/mcp-crates
- GitHub Stars
- 0
- Server Listing
- mcp-crates
TDQS
Scored across 36 tools
The set packs four near-identical Q&A routers (ask_pipeworx, ask_pipeworx_beta, ask_pipeworx_grounded, deep_research) plus overlapping prediction-market analyzers (polymarket_edges, polymarket_arbitrage, bet_research, polymarket_edge_tracker), so boundaries require careful reading. Very detailed descriptions mitigate but do not eliminate misselection risk.
All names use snake_case, but the convention shifts between verb_noun (get_crate, resolve_entity), noun phrases (entity_profile, recent_changes), and bare verbs (remember, subscribe), with inconsistent prefixes and suffixes (ask_pipeworx_beta, polymarket_kalshi_spread). Still readable but not predictable.
36 tools is far beyond the 3–15 sweet spot and especially excessive for a server named 'Crates' where only five tools concern crates.io. The platform's breadth forces a sprawling surface that is heavy for an agent to navigate.
Coverage across the apparent multi-domain data platform is broad—routing, research, entity resolution, validation, memory, subscriptions, crates, prediction markets—with few obvious dead ends. Minor gaps remain (e.g., no crate owners or direct URL fetch), but agents can work around them.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
1 tool update
- Changed
bet_research2 fields changed- changed
Input schema / examplesPrevious 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" + } +] - changed
Input schema / properties / market / descriptionPrevious 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."
2 tool updates
- Changed
bet_research1 field changed- changed
Input schema / properties / market / descriptionPrevious 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."
- Changed
polymarket_kalshi_spread2 fields changed- changed
Input schema / examplesPrevious value: -[ - { - "topic": "fed" - }, - { - "topic": "btc" - } -]New value: +[ + { + "topic": "fed" + }, + { + "topic": "btc" + }, + { + "topic": "bitcoin" + }, + { + "topic": "fed rate decision" + } +] - changed
Input schema / properties / topic / descriptionPrevious 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."
1 tool update
- Changed
bet_research1 field changed- changed
Input schema / examplesPrevious 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" + } +]
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