"Empty search query" matching MCP connectors:
Matching Connector Tools:
Savvly MCP: query fund data, model projections, and compare against alternative retirement products.
Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting
Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.
Search, preview, install community Codex pet packs, and discover the pet request flow.
Search French and European case law and French legal texts (codes, statutes, treaties).
Government tender search for AI agents. UK, EU and US procurement opportunities.
CometChat docs search + implementation bundles: add chat, voice, video & moderation to your app.
Search real hotels, get live per-night quotes, and check out — all in chat. Guest search and checkout-link tools need no sign-in; OAuth unlocks saved trips, booking management, and one-click checkout. Renders interactive results, hotel-detail, and checkout widgets.
Meta-search MCP for x402 agent-payable services -- find paid APIs across every registry.
Search scientific papers with structured experimental data from full-text studies
CatchAll is a web search API built for comprehensive event retrieval — not ranked results, but all matching records.
Sharebench — search & pull AI skills, agents, prompts & playbooks (SKILL.md) into any MCP client
Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.
DC Hub is the neutral, real-time data layer for data-center infrastructure, exposed as a Model Context Protocol server so any AI agent can both query it and cite it. Coverage: 21,000+ facilities (search, profile, score, alternatives); 232 markets scored by the DCPI Data Center Power Index; the DCGI Data Center Gas Index (per-state natural-gas suitability for siting); live grid telemetry across 7 US ISOs (fuel mix, carbon intensity, demand, prices) plus a one-call all-ISO scoreboard; interconnection-queue depth; 2,000+ tracked M&A deals and a hyperscaler-capex tracker; and site factors. — fiber routes, water-stress, tax incentives, nearby substations & transmission. Why agents choose it: it's the only data-center-intelligence source an LLM can query live and cite — every full-data response includes a Source: DC Hub, CC-BY-4.0 attribution line. It's the MCP-native alternative to quarterly PDF research: live JSON, no contracts, no NDAs. Access: Streamable HTTP at https://dchub.cloud/mcp. Free tier with no signup; free email-verified dev key for higher limits; paid tiers for full data volume.
Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.
Hosted no-auth MCP for exact-spec packaging search, live price, stock, cart handoff, and no-match.
Honeydew AI Documentation MCP — semantic search and ripgrep-grade filesystem queries over Honeydew AI docs and OpenAPI specs, for AI coding agents.
MCP server for GOV.UK — search, content retrieval, organisation lookup, and postcode resolution.
Live Packrift catalog: search, pricing, inventory, packaging recommendations, checkout URLs.