One API call. Grounded answers with sources. Sub-second latency. Drop into any LLM, agent, or MCP-compatible tool.
Works with your stack
From raw knowledge to grounded AI answers in milliseconds.
Our crawler keeps the knowledge base fresh -- new pages, updated content, all handled automatically.
BM25 keyword precision + dense vector embeddings. The best of both worlds for accurate results.
AI generates answers with source citations, formatted for any LLM context window.
Production-ready from day one.
BM25 + vector embeddings combined for superior retrieval accuracy.
Pre-indexed knowledge. Average response under 500ms.
Every answer includes traceable citations to original sources.
Native support for Claude Desktop, Cursor, Windsurf, and more.
One endpoint, any language. Drop-in compatible with existing workflows.
Continuous crawling keeps knowledge current without manual re-indexing.
One API key, six platforms. Connect in seconds.
Add Cytherra as an MCP tool in your IDE
ConnectSearch the web from Claude conversations
ConnectGround GPT with real-time search data
ConnectSearch API as a LangChain tool
ConnectServer-side search in your Next.js app
Connectpip install cytherra and start searching
ConnectOne endpoint. Any language. Clean results.
$ curl -X POST https://cytherra.com/api/search \
-H "Authorization: Bearer cyth_sk_..." \
-H "Content-Type: application/json" \
-d '{"query": "how does RAG work?", "mode": "deep"}'
# Response in ~400ms:
{
"answer": "RAG (Retrieval-Augmented Generation) works by...",
"sources": [...],
"latency_ms": 342,
"search_method": "hybrid"
}Start free. Scale as you grow. No hidden fees.
No credit card required.
For builders shipping AI products.
For teams at scale.
All plans include full API access. Compare plans in detail
Free tier. No credit card. Up and running in under a minute.
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