"Servers that support Server-Sent Events (SSE)" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Live power, energy, grid, gas, fiber & data-center site-selection infrastructure — query and cite.
CLSTR reads 100,000+ articles a day from 40,000+ sources in 170+ countries and deduplicates them into single events, then links related events into ongoing situations with a maintained summary and a full timeline. An agent can answer what has happened over the last six weeks, not just what a single headline says right now.
Find 76,000+ curated healthcare service vendors across 25 categories and all 50 US states.
Connect Claude or any MCP client to Thread Otter, a GTM agent for founders. Free tools with no key: find_buyer_threads (give it a website URL and get recent Reddit threads where that product's buyers are asking for it, report in ~3 minutes), reddit_demand_board (weekly demand across 40 communities with thread receipts), and subreddit_rules (promotion posture for 2,000+ profiled subreddits). With an API key: read your buying-intent mentions across Reddit, X, LinkedIn, and Bluesky, check your pipeline, and propose posts and reply drafts in your voice. Propose-only by design: nothing sends without your approval flow. Keys at threadotter.com/connect.
AgentBridge is the only MCP server that gives AI agents access to structured China knowledge assets—university reports, industry briefings, policy analysis, and real-time web content—through x402 micropayments on Base. Everything is machine-readable, pay-per-use, and settled in USDC.
Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.
An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.
MCP for SpaceTime Server APIs
Biorhythm cycles, forecasts, critical days and compatibility for AI agents, one API key.
Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.
Read-only MCP server for live Polymarket, Kalshi, Limitless odds; Manifold sentiment.
Validate startup ideas with behavioral evidence — not opinion. Demand Discovery AI™ is a sales-agent MCP that answers founders' questions about the validation framework, the four data-signal categories (Search & attention, Conversation & pain, Adoption & spend, Capital & hiring), the Demand Score™, and the Build/Pivot/Kill verdict™. Includes 7 tools: ask a free-form question, get the validation framework, get product details, explain demand signals, compare validation approaches, get data-source
Search ClinicalTrials.gov — find studies, retrieve results, match patients to eligible trials.
UNESCO UIS statistics (education, science, culture) with full provenance and fixed releases.
Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.
Evidence-readiness MCP server: validate, audit, and score briefs, memos, and evidence packs.
Access the OpenAlex academic research catalog — 270M+ publications.
Fact-check citations: resolve, match, support claims. Arithmetic rechecked. Free to start.
LuxAlgo Library — the encyclopedia of trading & technical analysis for AI agents. Free, keyless.
