Free tools or resources that do not require an API MCP Connectors

Palim A

Hosted MCP memory: save sessions/decisions once, search from Claude, Cursor, ChatGPT. EU-hosted FTS.

Knowledge & Memory Search RAG Systems

452

ToolSnap MCP A

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

Blockchain RAG Systems Web Scraping

1731

Search Fragments A

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

RAG Systems Search

12

Dodo Knowledge MCP A

A semantic search server that gives AI assistants instant access to Dodo Payments documentation and knowledge base.

Search Documentation Access RAG Systems

12

Fast.io A

AI-first file sharing and collaboration. 251 tools give agents a full workspace: file storage, branded shares, comments, workflows, and built-in RAG. 50GB free, no credit card.

Cloud Storage RAG Systems File Systems

193

Pastepile A

Durable, versioned memory for AI assistants. Remote memory needs a Pastepile subscription.

Knowledge & Memory RAG Systems

111

ColdState Knowledge Search A

**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

Search Knowledge & Memory RAG Systems

162

ctx A

Turn a GitHub repo or docs site into agent-ready context: pack it or search it, over MCP.

RAG Systems Search Documentation Access

61

consistency-gate A

Check claims against a fact-store: consistent, contradicts, or unverifiable — with a receipt.

RAG Systems Knowledge & Memory

31

ai·rete·rag A

Author rules from policy docs, then decide: a Rete engine gives the verdict, an LLM explains why.

RAG Systems AI & Machine Learning Knowledge & Memory

81

lens A

Create your digital twin: a public page that answers from your own material, with citations.

RAG Systems Knowledge & Memory Search

31

Serper A

Serper MCP — wraps the Serper Google Search API (serper.dev)

Search RAG Systems

342

Pronto A

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.

Search Data Platforms RAG Systems

91

agent-memory A

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

RAG Systems Vector Databases

211

trip2g A

Serve a folder of Markdown notes as an MCP server: hybrid search, reading, and sourced answers.

RAG Systems Note Taking Search

11230

Mdkit A

Document-to-Markdown MCP server — convert PDF, Office and HTML into LLM-ready Markdown.

Developer Tools RAG Systems Data Platforms

31

BedrockNews A

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

RAG Systems Search Knowledge & Memory

61

agent4.io A

Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.

Agent Orchestration Autonomous Agents RAG Systems

501

deerdawn A

AI session memory: the brief your AI reads before every session so no session starts cold.

Knowledge & Memory RAG Systems Autonomous Agents

232

doc.page PDF Extraction A

Extract PDFs to Markdown, RAG chunks and cited tables; publish tracked Doc Links with read stats.

RAG Systems Documentation Access

72

"Free tools or resources that do not require an API" matching MCP connectors: