Local FAISSSAFE
Local FAISS vector store as an MCP server – Agent Memory, drop-in local semantic search for Claude / Copilot / Agents.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
[](https://opensource.org/licenses/MIT) [](https://www.python.org/downloads/) [](https://github.com/nonatofabio/localfaissmcp/actions) [](https://badge.fury.io/py/local-faiss-mcp)
A Model Context Protocol (MCP) server that provides local vector database functionality using FAISS for Retrieval-Augmented Generation (RAG) applications.
Features
Core Capabilities
- Local Vector Storage: Uses FAISS for efficient similarity search without external dependencies
- Document Ingestion: Automatically chunks and embeds documents for storage
- Semantic Search: Query documents using natural language with sentence embeddings
- Persistent Storage: Indexes and metadata are saved to disk
- MCP Compatible: Works with any MCP-compatible AI agent or client
v0.2.0 Highlights
- CLI Tool:
local-faisscommand for standalone indexing and search - Document Formats: Native PDF/TXT/MD support, DOCX/HTML/EPUB with pandoc
- Re-ranking: Two-stage retrieve and rerank for better results
- Custom Embeddings: Choose any Hugging Face embedding model
- MCP Prompts: Built-in prompts for answer extraction and summarization
Quickstart
# Install pip install local-faiss-mcp # Index documents local-faiss index document.pdf # Search local-faiss search "What is this document about?"
Or use with Claude Code - configure MCP client (see Configuration) and try:
Use the ingest_document tool with: ./path/to/document.pdf Then use query_rag_store to search for: "How does FAISS perform similarity search?"
Claude wil
79a8d0d33ba2OBSERVED · 2026-10-08Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add local-faiss-mcp -- None local-faiss-mcp==0.2.0
Exposed tools (2)
2 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
ingest_document | read | Ingest a document into the FAISS vector store. The document will be chunked, embedded, and stored for later retrieval. |
query_rag_store | read | Query the FAISS vector store to retrieve relevant document chunks based on semantic similarity. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (3)
.mcp.json.example
mcp, faiss-cpu, sentence-transformers, numpy, pypdf, colorama
static/demo.gif
Gates applied: no_behavioural_pass.
79a8d0d33ba2full audit observations/trust-audit/mcp-server/nonatofabio__local-faiss.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-08 | 79a8d0d33ba2 | SAFE | B | 89 | first audit |
Questions
What is the Local FAISS MCP server?
Local FAISS vector store as an MCP server – Agent Memory, drop-in local semantic search for Claude / Copilot / Agents.
What tools does Local FAISS expose?
2 in total: 2 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Local FAISS safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does Local FAISS need?
No credential environment variables were found in its source, so it appears to need none.
How does Local FAISS run?
It speaks stdio, so it runs as a local process your client starts. It is published on PyPI as local-faiss-mcp.
How current is this page?
The grade is for one exact copy of the source (79a8d0d33ba2), read on 2026-10-08. The repository is watched and re-audited when it changes.