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Jina AI MCP Integration for LangChain

Connect Jina AI to LangChain through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

5 functions 5 read 0 write API key auth
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Connect Jina AI to LangChain

Bridge LangChain agents to local KosmoKrator integration tools through MCP or headless CLI calls.

Use the MCP gateway when the agent should discover tools, or wrap kosmo integrations:call for fixed chains. The gateway is local, scoped to this integration, and starts with --write=deny so LangChain can inspect read-capable tools without receiving write access by default.

Jina AI MCP Config for LangChain

Keep the gateway scoped to the integration and operation class needed by the chain.

{
  "mcpServers": {
    "kosmokrator-jinaai": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=jinaai",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=jinaai --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Jina AI instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Jina AI Tools Visible to LangChain

LangChain sees stable MCP tool names generated from the Jina AI integration catalog.

MCP toolSource functionTypeDescription
integration__jinaai__jinaai_search jinaai.jinaai_search Read Search the web using Jina AI. Returns search results with titles, URLs, descriptions, and extracted content. Useful for finding up-to-date information on any topic.
integration__jinaai__jinaai_read jinaai.jinaai_read Read Read and extract clean content from a URL using Jina AI Reader. Returns the main text content of a web page, stripping away navigation, ads, and other clutter. Useful for reading articles, documentation, or any web page.
integration__jinaai__jinaai_ground jinaai.jinaai_ground Read Ground a statement against provided context using Jina AI. Verifies whether a claim or statement is supported by the given reference text. Returns grounding results indicating which parts of the statement are supported or contradicted.
integration__jinaai__jinaai_embeddings jinaai.jinaai_embeddings Read Generate text embeddings using Jina AI. Converts text into dense vector representations useful for semantic search, similarity comparison, clustering, and retrieval-augmented generation (RAG).
integration__jinaai__jinaai_rerank jinaai.jinaai_rerank Read Rerank documents by relevance to a query using Jina AI. Takes a query and a list of text documents, then returns them sorted by relevance with scores. Useful for improving search results or filtering the most relevant content.

Related Jina AI Pages

Jina AI CLIUse direct JSON commands instead of MCP discovery. Jina AI MCPFull gateway reference and MCP tool names. KosmoKrator for LangChainClient-level gateway setup.