Ethereum & EVM Message Signing
by nirholascommunityv1.0.0
19
4
This MCP server provides Ethereum signing and signature utilities for EIP-191 personal_sign messages and EIP-712 typed structured data. It also includes tools to verify signatures, recover signer addresses, and compose/decompose/normalize signature components.
From the registry: Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery
Install & configure
Prerequisites
- optionalInstall the Python packageInstall the MCP server from PyPI using pip.
https://pypi.org/project/signing-mcp-server/'}],$ pip install signing-mcp-server
Install in your client
Paste into the AI you're chatting with — it will figure out the rest
Please install the `signing-mcp-server` MCP server into my current AI client (that's you).
Optional prerequisites:
- Install the Python package — Install the MCP server from PyPI using pip. Run: `pip install signing-mcp-server` (https://pypi.org/project/signing-mcp-server/'}],)
Canonical MCP server config (stdio transport):
- command: `signing-mcp-server`
- args: []
Note: The README also shows a source install path (`pip install -e .`), but the PyPI install is the simplest and most portable option. No environment variables are documented.
Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.Note: The README also shows a source install path (`pip install -e .`), but the PyPI install is the simplest and most portable option. No environment variables are documented.
Tools (12)
sign_message
Sign a text message using EIP-191 personal_sign format
sign_message_hex
Sign hex-encoded bytes using EIP-191 format
verify_message
Verify an EIP-191 signed message
recover_signer
Recover signer address from a signed message
sign_typed_data
Sign EIP-712 typed structured data
verify_typed_data
Verify an EIP-712 typed data signature
recover_typed_data_signer
Recover signer from typed data signature
hash_typed_data
Compute EIP-712 hash without signing
decompose_signature
Break down signature into v, r, s components
compose_signature
Compose signature from v, r, s components
normalize_signature
Convert between signature formats (27/28 vs 0/1 for v)
sign_hash
Sign a raw 32-byte hash
Packages
signing-mcp-server
pypiv1.0.0transport: stdio
Details
- Language
- HTML
- License
- MIT
- Released
- Jan 20, 2026
- Last commit
- Mar 30, 2026
- Registry name
- io.github.nirholas/signing-mcp-server