vectara/vectara-mcp

Overview

An open-source MCP (Model Context Protocol) server that bridges Vectara's retrieval-augmented generation platform with MCP-compatible AI agents. It is written in Python and exposes Vectara's search and indexing capabilities as standard MCP tools.

Best for

Best for
Developers who use Vectara and want to connect it to MCP-compatible AI agents or tools

Use cases

• Connect an MCP-compatible AI agent to query a Vectara corpus
• Index documents into Vectara from within an agent workflow
• Build retrieval-augmented generation pipelines via the MCP protocol

How to use

Install

pip install vectara-mcp

Tools exposed

• setup_vectara_api_key
• clear_vectara_api_key
• ask_vectara
• search_vectara
• correct_hallucinations
• eval_factual_consistency

Tested with

Claude Desktop

Example client config

{\n  "mcpServers": {\n    "Vectara": {\n      "command": "python",\n      "args": ["-m", "vectara_mcp", "--stdio"],\n      "env": {\n        "VECTARA_API_KEY": "your-api-key"\n      }\n    }\n  }\n}

Notes

An open-source MCP (Model Context Protocol) server that bridges Vectara’s retrieval-augmented generation platform with MCP-compatible AI agents. It is written in Python and exposes Vectara’s search and indexing capabilities as standard MCP tools.

26 stars on GitHub. Last updated 2026-04-30. Licensed Apache-2.0.

Use cases

• Connect an MCP-compatible AI agent to query a Vectara corpus
• Index documents into Vectara from within an agent workflow
• Build retrieval-augmented generation pipelines via the MCP protocol

Pros

• Open-source with permissive licensing allows full customization
• Python-based, easy to extend or embed in existing Python projects
• Enables standardized integration between Vectara and many MCP clients

Cons

• Low star count (26) indicates early adoption and limited community support
• Documentation and usage examples may be sparse
• Tied to Vectara’s platform, not useful without an active Vectara account

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.