"1&1" matching MCP connectors:

Condition-aware ingredient & product safety intelligence for agents: verdict + evidence tier + per-claim evidence_state (cited = ≥1 verified citation / referenced = sourced-but-unverified) + citations, across breastfeeding, pregnancy, histamine/MCAS, rosacea, HS, allergy, fertility, and toddler lenses. Includes validate_claim to fact-check a free-text health claim against curated cited sources.

Order official German energy certificates (Energieausweis) from chat — on invoice, 1-2 days.

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

Anonymous read-only Formula 1 tools, resources, prompts, completion, and interactive dashboard.

Kuaishou hot search, work/user search, work details, comments/replies, profiles, transcript.

Deterministic Scope 1/2/3 GHG inventories with bundled factors and audit hashes.

Native cross-chain swaps: Bitcoin, Ethereum, Solana, Polkadot, Tron, Arbitrum. Quote, swap, track.

M12 lens and C-mount lens finder with image-sensor matching and field-of-view calculator.

SEC Form D fundraising intelligence.

Real, calibrated Dota 2, Deadlock & Marvel Rivals win predictions, tier lists & counters.

Breach intelligence API: email search, domain monitoring, passwords and stealer logs.

B2B people and company data for AI agents. Search 700M+ professionals by role, company, and industry. Reveal verified work emails and direct phone numbers inline. Free to search, 1 credit per verified reveal. Supports Claude Desktop, Claude Code, Cursor, and any MCP client.

Cost segregation study pricing and Year-1 depreciation/tax-savings estimates for US properties.

Excel analytics: inspect, query (JSON rows), charts, and JSON-to-xlsx workbook writing.

Generate PDF, Word (.docx) and PowerPoint (.pptx) documents from Markdown over MCP.

Parse PDF/Word/PPT/HTML to Markdown; tables as JSON, image extraction, RAG chunking, page ranges.

Web scraping to clean Markdown with JS rendering, multi-page crawl, structured extract, sitemaps.

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

Query, join, profile, clean and convert CSV/JSON/Parquet with server-side DuckDB over MCP.

Image toolkit: resize, compress, crop, watermark, convert, rotate, EXIF read/strip.