"Web search services that don't require an API key" matching MCP connectors:

AI document intelligence: extract, summarize, claim-check, notarize, and signed action receipts.

Find & cut horizontal and vertical video clips (Shorts/Reels), transcribe & summarize. Pay per job.

Pay-per-call AI tools over x402: web research, summarization, structured extraction (USDC, Base).

Free cross-lingual news briefings for AI agents across 89 languages. Read-only, hosted.

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.

Summarized Bulgarian news from leading outlets: semantic search, top stories, article summaries.

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.

AI-powered news intelligence — 21 tools for personalized monitoring, briefings, and semantic search

Review contracts for risks: summary, severity-rated flags, key terms, and clause coverage.

Behavioural hiring briefs from any JD: 5 behaviours, evidence, demand, interview questions, rarity.

AI document editing for agents: draft, edit, export .docx/PDF. 37 MCP tools; agent self-signup.

12 utility endpoints for AI agents (QR codes,screenshots, scraping, AI summarization). Two payment rails: pre-paid Bearer credits via NowPayments or x402 USDC pay-per-call on Base mainnet.

Search your Obsidian vault to quickly find notes by title or keyword, summarize related content, a…

Toxicity, sentiment, NER, PII detection, and language identification tools

Transcribe YouTube via Whisper. Summaries, chapters, semantic-search across your corpus.

Search PubMed and summarize biomedical literature — designed for AI health agents.

Humanizer PRO humanize AI-generated content into natural, human-sounding text that bypasses GPTZero, Turnitin, Originality.ai, Copyleaks, ZeroGPT, and other AI detectors. Undetectable AI content rewriting with Stealth, Academic, and SEO modes.

Carbon Voice MCP serves as a bridge that connects AI assistants like ChatGPT, Claude, and Cursor to a user's Carbon Voice account, turning voice messages and conversations into a private, on-demand knowledge base. It provides 28 specialized tools for comprehensive voice messaging management, including creating and sending messages, accessing conversation history with instant transcription, running AI actions (summarization, TLDR generation, meeting notes), and managing workspace collaboration through folders, contacts, and team communications.