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dmichael

tezos-mcp

by dmichael

tezos-mcp

RAG-powered MCP server for Tezos protocol specs, TZIPs, and Octez source code.

What It Does

Indexes and searches across:

  • Octez Protocol - OCaml protocol implementations (src/proto_*/lib_protocol/)

  • Octez Node - Shell architecture, RPC specs, P2P, storage (src/, docs/)

  • TZIPs - Tezos Improvement Proposals (FA2, metadata, wallet standards)

Related MCP server: mcp-rag-server

Installation

# From PyPI
pip install tezos-mcp

# From source
pip install -e .

# With Voyage API embeddings (best quality)
pip install -e ".[voyage]"

# With tree-sitter OCaml parsing
pip install -e ".[ocaml]"

Quick Start

# Build the index (downloads repos + creates embeddings)
tezos-mcp build

# Search
tezos-mcp search "FA2 token standard"

# Check status
tezos-mcp status

Features

Incremental Indexing

Only re-embeds changed files instead of rebuilding the entire index. Reduces update time from minutes to seconds.

# Update repos and incrementally re-index (fast!)
tezos-mcp update

# Incremental index (default behavior)
tezos-mcp index

# Force full rebuild
tezos-mcp index --full

How it works:

  1. Tracks file hashes and modification times in a manifest

  2. Detects which files changed since last index

  3. Only re-embeds the changed content

  4. Updates LanceDB incrementally (add/delete operations)

Configurable Embedding Models

Choose from multiple embedding models based on your quality/speed tradeoff:

# List available models
tezos-mcp models

# Use a specific model
tezos-mcp index --model codesage/codesage-large

Model

Dims

Quality

Speed

Notes

all-MiniLM-L6-v2

384

Fair

Fast

Default, good for quick searches

all-mpnet-base-v2

768

Good

Medium

Better quality

codesage/codesage-large

1024

Good

Medium

Code-specialized

voyage:voyage-code-3

1024

Excellent

API

Best quality, requires API key

Configure in ~/.tezos-mcp/config.yaml:

embedding_model: all-MiniLM-L6-v2
chunk_size: 1000
chunk_overlap: 200
protocol_depth: 3  # Number of past protocols to index

Expert Guidance

Curated knowledge beyond what's in the code:

# Via MCP tool
tez_expert_guidance("baking")
tez_expert_guidance("governance")
tez_expert_guidance("smart_rollups")

Topics include: baking, delegation, staking, tenderbake, governance, smart_rollups, dal, michelson, fa2, adaptive_issuance, slashing

CLI Commands

# Full build pipeline
tezos-mcp build                       # Download + compile + index
tezos-mcp build --full                # Force full rebuild

# Individual steps
tezos-mcp download                    # Clone octez + tzip repos
tezos-mcp compile                     # Parse OCaml/markdown into JSON
tezos-mcp index                       # Build vector embeddings
tezos-mcp index --full                # Force full rebuild
tezos-mcp index --model MODEL         # Use specific embedding model

# Update (git pull + incremental index)
tezos-mcp update
tezos-mcp update --full               # Update + force rebuild

# Search
tezos-mcp search "stake delegation"
tezos-mcp search "tenderbake consensus" --protocol paris
tezos-mcp search "FA2 transfer" --limit 10

# Lookup
tezos-mcp constant max_operations_ttl
tezos-mcp function apply_operation

# Info
tezos-mcp status                      # Index status, manifest info
tezos-mcp models                      # List embedding models
tezos-mcp serve                       # Start MCP server

MCP Tools

When running as an MCP server:

Tool

Purpose

tez_search

Semantic search across all indexed content

tez_search_tzip

Search TZIP standards (FA2, metadata, wallet specs)

tez_search_protocol

Search protocol specs and OCaml source

tez_search_octez

Search Octez node docs and source code

tez_grep_constant

Fast OCaml constant lookup

tez_analyze_function

Get OCaml function source code

tez_get_current_protocol

Current mainnet protocol (Tallinn)

tez_list_protocols

Full amendment history (Athens through Tallinn)

tez_expert_guidance

Curated guidance on Tezos topics

Protocol Amendments

Tezos upgrades through on-chain governance. The index covers the full amendment history:

Protocol

Date

Notable Features

Athens

2019-05

First amendment

Ithaca

2022-03

Tenderbake consensus

Mumbai

2023-03

Smart rollups

Paris

2024-06

Adaptive issuance, staking

Quebec

2025-02

Universal baker attestation

Tallinn

2026-01

6s block time

Project Structure

src/tezos_mcp/
├── server.py               # MCP server (FastMCP)
├── cli.py                  # CLI commands (Click)
├── config.py               # Configuration management
├── models.py               # Pydantic input validation
├── protocols.py            # Protocol amendment history
├── logging.py              # Structured logging
├── indexer/
│   ├── downloader.py       # Git clone with sparse checkout
│   ├── compiler.py         # Markdown/RST extraction
│   ├── ocaml_compiler.py   # OCaml parsing (tree-sitter + regex)
│   ├── chunker.py          # Document chunking + chunk IDs
│   ├── embedder.py         # Embeddings + LanceDB + incremental
│   └── manifest.py         # File tracking for incremental updates
└── expert/
    └── guidance.py         # Curated expert knowledge

Data Location

~/.tezos-mcp/
├── config.yaml             # Configuration (optional)
├── manifest.json           # Index state tracking
├── repos/
│   ├── tezos/              # Octez protocol + node (sparse checkout)
│   └── tzip/               # TZIP standards (full clone)
├── compiled/               # Extracted JSON specs
│   ├── tzips/
│   └── octez_docs/
└── lancedb/                # Vector index

Expert Guidance Topics

The tez_expert_guidance tool provides curated knowledge on:

Consensus & Baking:

  • baking - Block production, endorsing, rights

  • delegation - Delegating to bakers, rewards

  • staking - Direct staking (Paris+), frozen deposits

  • tenderbake - Deterministic finality consensus

  • slashing - Double-baking/endorsing penalties

Governance & Standards:

  • governance - On-chain amendment process

  • fa2 - FA2 token standard (TZIP-012)

  • michelson - Smart contract language

Scaling & Data:

  • smart_rollups - L2 scaling (WASM rollups)

  • dal - Data Availability Layer

  • adaptive_issuance - Dynamic reward adjustment

Development

# Install with dev dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Run tests with coverage
pytest --cov=tezos_mcp

# Lint
ruff check src/

Running as MCP Server

# Start the server
tezos-mcp serve

Add to your Claude Code MCP configuration:

{
  "mcpServers": {
    "tezos-mcp": {
      "command": "tezos-mcp",
      "args": ["serve"]
    }
  }
}

License

MIT

A
license - permissive license
-
quality - not tested
D
maintenance

Maintenance

Maintainers
Response time
Release cycle
Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

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