"Firebase: Backend Platform for App Development" matching MCP connectors:

Deterministic AI agent microtools, no accounts/API keys. fetch_extract: 98% token cut. 38 tools.

For queries a model can't confidently place: resolves or declines. Built to decline, not guess.

MCP server for German & EU law. Verified, citable legal context for any LLM. Daily updates from official sources, hosted in Germany

**ColdState Knowledge Search MCP Server** https://github.com/daniel-coldstate/coldstate-mcp Semantic search over 64.6M knowledge entries — the structured alternative to web search APIs and web scraping for LLM agents. No crawling, no rate limits, sub-3s responses. Cloud-hosted at services.coldstate.ai

The first low-latency wire service purpose-built for AI agents. Ingests 54+ public APIs and 71k RSS feeds across 232 countries, outputs CWF (Cognitive Wire Format) – 80% shorter than JSON, sub-second WebSocket delivery. 9 MCP tools: get_latest_signals, search_signals, get_fused_signal, scope_signals, get_facet_manifest, list_facets, get_related_signals, list_data_sources, get_billing_profile. 26 citable fusion products with verifiable formulas – no black-box scores.

Build an AI chatbot from your own content that answers with citations: FAQ, docs, coach, support.

LLM-ready web search + instant answers + URL-to-clean-text fetch for agents and RAG.

GRIN-scored news for agents: discover by verdict, pull full analysis, traverse extraction graphs.

Persistent semantic memory for AI agents: store and recall text by meaning (RAG). x402

Apple Developer Documentation with Semantic Search, RAG, and AI reranking for MCP clients

Disposable private vector search + semantic RAG for AI agents. x402 pay-per-call, no account.

Persistent project context for xAI Grok. IANA-registered .faf format.

Collaborative, cache-first web search for agents — cited answers from a shared live-web pool.

Manage your Mistral platform — models, files, batch jobs, agents and RAG document libraries.

Hosted persistent memory with semantic search, importance and TTL for AI agents.

Your company's brain for AI agents. Cited, permission-aware knowledge across every system.

Generate 18 AI readiness files (llms.txt, ai.txt, RAG indexes, schema) for any website.

Historical market memory for AI agents using semantic vector search across years of financial market data. Discover similar market regimes, price patterns, and market context for quantitative research and algorithmic trading.

Agent-first resource directory for AI agents: protocols, security, RAG, memory, evals, and more.

Deterministic fact verification for AI agents — checksums & curated data, not guesses.