dify-kb-mcp
MCP server that exposes Dify knowledge base retrieval as agent tools.
Two tools, both read-only:
| Tool | What it does |
|---|---|
search_knowledge |
Semantic search across one or more datasets, returns the best passages with scores |
list_knowledge_bases |
Lists datasets with document counts and retrieval settings |
Install
uvx dify-kb-mcp
# or
pip install dify-kb-mcp
Configure
| Variable | Required | Default | Notes |
|---|---|---|---|
DIFY_API_BASE |
no | http://localhost:5001/v1 |
Your Dify API base, e.g. https://dify.example.com/v1 |
DIFY_DATASET_TOKEN |
yes | – | Dataset API key from Dify → 知识库 → API |
DIFY_RERANK |
no | 0 |
1 enables reranking when the dataset has it configured |
DIFY_RERANK_PROVIDER |
no | huggingface_tei |
Rerank provider name |
DIFY_RERANK_MODEL |
no | bge-reranker-base |
Rerank model name |
DIFY_MAX_RESULT_CHARS |
no | 3000 |
Result truncation limit |
MCP client config
{
"mcpServers": {
"dify-kb": {
"command": "uvx",
"args": ["dify-kb-mcp"],
"env": {
"DIFY_API_BASE": "https://dify.example.com/v1",
"DIFY_DATASET_TOKEN": "dataset-xxxxxxxx"
}
}
}
}
Behaviour notes
- Only datasets with at least one document are searched.
- Each dataset's own retrieval settings (search method, score threshold) are respected; only reranking is overridden by
DIFY_RERANK. - If reranking is requested but the rerank service is down, the request is retried once without reranking instead of failing.
- Errors (bad token, unreachable host) are returned as readable text rather than raised, so the agent can explain them to the user.
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for dify-kb-mcp 0.1.0
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