"1&1" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Financial news for AI agents: search, trending, insider, earnings reads, macro, scored 1-10.
Your agent needs X/Twitter data — who follows a competitor, what a community is posting, who quoted that tweet, what is trending in Japan. Normally that means applying for an X developer account, passing app review, and managing a quota per endpoint. **What you can ask for** • "Who follows @stripe, and which of them are verified?" • "Pull every reply and quote on this tweet and summarise what people object to." • "List this community's moderators and its posts this week." • "What is trending in Japan right now?" • "Give me the full thread context behind this link, including the long-form article." **How to use it** Point any MCP client at https://mcp.aisa.one/twitter-api/mcp and sign in with OAuth — there is no key to create or paste. 29 read tools: users (profile, about, batch lookup by id, search, followers, verified followers, followings, follow check), tweets (timeline, latest, mentions, advanced search, replies, quotes, retweeters, thread context, articles), communities, lists, Spaces and trends. **Why this rather than the source** No developer account to apply for, no app review, no per-endpoint quota to manage. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Ask for a handle's followers here, then ask the same agent for that brand's search traffic, its backlinks, or the people to contact — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/social/mcp for X plus Instagram, Reddit, Pinterest and YouTube; https://mcp.aisa.one/gtm/mcp for those plus Similarweb and Apollo.
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
Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.
E-invoice checker for ZUGFeRD, Factur-X, XRechnung and Peppol BIS. Free web tool, API and MCP.
Verify a company on GLEIF LEI and SEC EDGAR, screen sanctions. No key; quota-free data.
data.go.kr 10.9만 데이터셋을 말로 검색·미리보기(키 불필요). 활용신청·다운로드는 내 계정·키로(데스크탑 확장).
日本の成人向け作品 (18歳以上) の出演者・作品検索。画像からの出演者判定はサイトで発行する認証コードが必要。
XRechnung and ZUGFeRD e-invoicing (EN 16931): create, validate, check Leitweg-IDs, German VAT.
Buy real goods with Nano (XNO) through escrow. Search, purchase, track orders, get signed receipts.
Native cross-chain swaps: Bitcoin, Ethereum, Solana, Polkadot, Tron, Arbitrum. Quote, swap, track.
China state-owned enterprise campus recruitment: search jobs, deadlines, official source links.
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.
エキテン（日本全国のお店・施設の情報サイト）のネット予約を提供するMCPサーバー。オールジャンルの日本国内店舗・施設が対象。店舗検索・空き確認・予約登録・キャンセルに対応。
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
D365 F&O: 90 AI tools over 200K+ objects, 25M+ cross-refs, 24M+ label translations.
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Every figure re-checked against SQL-computed facts; unsupported questions refused with the reason.
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Search gift meals and send them as gifts. Live catalog, cart, and guest checkout for SendaMeal.
