"Free servers available for testing purposes" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Compress prose for LLM context windows. Per-call USDC billing, signed receipt.
Monitor news sources, read clustered articles and generated texts, and manage goals and workflows. OAuth 2 or Bearer token; free plan with no card.
25 tools: LLM chat, summaries, translation, embeddings, speech, images. 25 free calls.
AI-industry news for agents: each story once, as a sourced event in a 10/57 taxonomy. No key needed.
11 pay-per-call tools for AI agents: web pages and JavaScript apps as clean text or Markdown, PDF text, RSS and Atom feeds, page metadata, XML sitemaps, screenshots, summaries and paper search. USDC via x402.
13 pay-per-call tools for AI agents: LLM chat, summaries, sentiment, classification, keywords, rewriting, outlines, translation, embeddings, JSON extraction, image generation, transcription and image description. USDC via x402.
Transcripts, summaries, chapters and timestamped answers for video links, for AI agents.
Connect AI assistants to a Referna member's personalized live meeting recaps. List available recaps and retrieve the summary for a selected meeting.
Search, summarize and organize your WhatsApp chats from Claude, ChatGPT or Cursor: contacts, groups, labels, notes, reminders and scheduled messages. Tool calls run in the Kaption extension for WhatsApp Web (Chrome, Edge) or the Kaption desktop app, which must be open. Sign-in is OAuth 2.1 with a code sent on WhatsApp. No send-now tool. Setup: https://kaptionai.com/mcp/
Hourly ranked news (AI, markets, sports, world): JSON, e-ink pages, Morning Paper PDF; 25 free/day
For Przetargowy Janusz customers (trial or paid): Polish tenders, AI summaries, pipeline, filling
Official MCP connector for OneMira C1 (https://onemira.com/products/c1) — an AI voice recorder without monthly subscription featuring standalone one-press capture, Speaker ID, Local AI summaries, and local Markdown (.md) + MCP integration (https://onemira.com/docs/mcp-integration).
Price, sample and request page-cited medical chronologies for law firms and LNCs. No sign-in or PHI.
Free AI-curated news summaries from 100+ sources across seven beats, plus entity dossiers.
Multilingual YouTube → Knowledge Pack engine. Paste a video URL and get a structured pack — summary, key ideas, glossary, quiz, transcript with timestamps — in Spanish, Portuguese, German, or English. Anonymous endpoint plus OAuth-gated tools for library search, RAG Q&A on a single pack, and Anki export.
Extract meeting action items, decisions, blockers, and follow-ups from transcripts. For project management and productivity.
Verifiable document intelligence for AI agents. Extract, summarize, claim-check, and notarize PDFs & URLs with cryptographic proofs, cross-document search, and on-chain attestation via Base L2.
Mixture-of-Agents document intelligence engine. Multiple AI models cross-verify each other for 100% recall across 10 languages. 6 tools (analyze_document, extract_web, summarize, delegate_bulk_translate, estimate_cost, health_check). USDC pay-per-call on Base or Solana via x402. From $0.08/call.
Free crypto news for agents: top stories by market impact, search, topics, AI digest.
Render LaTeX math as pure Unicode text art for terminals, code comments, and emails.
