Ethereum & EVM Message Signing
Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery
MCP server · by nirholas
About
Ethereum & EVM Message Signing is an MCP server published by nirholas. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.
What it asks for
- Runs on your machine
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
PyPI signing-mcp-server (signing-mcp-server on PyPI)
- PyPI downloads/week: 14 (2026-10-13)
- PyPI downloads/month: 52 (2026-10-13)
- Latest version on PyPI: 1.0.0, published 2026-01-20
No known vulnerabilities in OSV for 1.0.0 (checked 2026-10-13)
PyPI facts come from pypi.org, PyPI downloads from pypistats.org. Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero. Vulnerability records come from OSV.dev (CC BY 4.0) and concern the declared version only; a listing that declares no version gets no answer. We do not scan code.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: PyPI package
Built from what Official MCP Registry declares.
claude mcp add --transport stdio signing-mcp-server -- uvx signing-mcp-server[mcp_servers.signing-mcp-server]
command = "uvx"
args = ["signing-mcp-server"]{
"mcpServers": {
"signing-mcp-server": {
"command": "uvx",
"args": [
"signing-mcp-server"
]
}
}
}Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | Downloads/month (PyPI): 52 Downloads/week (PyPI): 14 Forks (GitHub): 5 Stars (GitHub): 26 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Build and sign Ethereum transactions - EIP-1559, gas estimation, RLP, ERC-20 transfers
-
mcp-signer io.github.CryptoAPIs-io/mcp-signer
Local transaction signing for EVM, UTXO, Tron, XRP, Kaspa, Solana and Tezos — no API calls
-
Validate Ethereum addresses, keys, checksums, keccak256 hashes, function selectors, ENS
-
mcp-simulate io.github.CryptoAPIs-io/mcp-simulate
MCP server for dry-run Ethereum transaction simulation via Crypto APIs
-
mcp-prepare-transactions io.github.CryptoAPIs-io/mcp-prepare-transactions
MCP server for building unsigned transactions on EVM, Tezos, Solana, Kaspa, XRP, UTXO, Tron
-
Use before signing an EVM tx or EIP-712 message: risk flags + verdict. Informational, no simulation
-
Generate Ethereum wallets with BIP39 mnemonics, HD paths, vanity addresses, private key backup
-
PlainText Wallet Approval Checker
Explains wallet approvals and signature requests in plain language: SAFE, CAUTION or RISK.
-
verify ai.tachyo/verify
Cryptographic proof of wallet ownership in two steps, with no keys and no custody.
-
mcp-utils io.github.CryptoAPIs-io/mcp-utils
MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Natural language to unsigned DeFi transactions. Translates natural language intents into transaction payloads. Deterministic, no signing, no private keys.
-
Offline Ed25519 receipt verifier — checks signed decision receipts, agent manifests, and audit bundles without contacting any server.
-
Phantom wallet integration for Claude Code - skills for Solana blockchain development, wallet operations, token management, and dApp building with Phantom.
-
Solana token safety scanner behind x402 micropayments. Checks mint/freeze authority, holder concentration, liquidity, LP locks, honeypot detection, metadata mutability, token age…
-
Agent safety infrastructure (RiskOracle, NoLeak, MemGuard, SecureExec, FlowCore) and real-time DELPHI Oracle intelligence signals. x402 USDC micropayments on Base Mainnet. 19…
Has a listing on Claude Code: claude-plugins-official (5)
-
Ship stablecoin apps faster. Best-practice skills for USDC payments, cross-chain transfers, wallets, and smart contracts — plus Circle's MCP server for real-time SDK and…
-
Carta Cap Table plugin — skills and hooks for querying cap tables, grants, SAFEs, 409A valuations, waterfall scenarios, and more
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
LinqAlpha financial research in Claude: guided setup for the LinqAlpha connector, capability-based source selection for fundamentals, estimates, transcripts, filings and market…
-
Portfolio monitoring, valuations and analytics for private-capital GP teams using the Chronograph connector: portfolio-company one-pagers, fund quarterly review packs…
Has a listing on Claude: knowledge-work-plugins (5)
-
Carta Cap Table plugin — skills and hooks for querying cap tables, grants, SAFEs, 409A valuations, waterfall scenarios, and more
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
Ready-to-run workflows for financial advisors in Claude Cowork, drawing live data from the tools their firm already uses through third-party connectors. The plugin holds no client…
-
Financial analysis skills powered by Daloopa's institutional-grade data
-
Portfolio monitoring, valuations and analytics for private-capital GP teams using the Chronograph connector: portfolio-company one-pagers, fund quarterly review packs…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Public equity investing workflows for listed-company research, earnings analysis, valuation, model updates, long/short pitches, catalysts, thesis tracking, ETF/index and…
-
Build with OpenAI APIs, Agents SDK, and ChatGPT Apps, and create and save OpenAI API keys from Codex.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
Codex Security workflows for security scans, analysis, and investigation.
-
Develop your payments integration faster with the ability to create products, prices, and payment links directly in ChatGPT. Run your business from ChatGPT with the ability to…
Has a listing on Community GitHub marketplaces (5)
-
agentforge io.github.acarchidi/agentforge
DeFi safety layer for AI agents: wallet safety, token risk, tx decode/simulate. 20 tools.
-
Agent skill for BlockVectra: keyless EVM JSON-RPC, Data API, programmatic sign-up, pricing and top-up.
-
Read-only tools for live Midnight networks: health, transactions, DUST, errors and example code
-
Version-true web3 docs, ABIs and human-validated integration recipes over MCP.
-
Vet agents, verify portable passports, use escrow, and record signed outcomes.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Explore and query TimeBase streams, schemas, QQL, symbols, and server status via MCP.
-
See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
Has a listing on Cursor: cursor/plugins (5)
-
Check balances, get quotes, and preview or place trades.
-
Manage envelopes, templates, workflows, and agreements.
-
Build apps, scripts, and automations with the TypeScript SDK.
-
View portfolios, positions, orders, watchlists, and market data, and trade in a Robinhood Agentic account.
-
Review positions, balances, P&L, and draft trade instructions.
Has a listing on Docker MCP Catalog (5)
-
Access to OpenZeppelin Stylus Contracts.
-
OpenZeppelin Stellar Contracts
Access to OpenZeppelin Stellar Contracts.
-
OpenZeppelin Solidity Contracts
Access to OpenZeppelin Solidity Contracts.
-
A Model Context Protocol (MCP) server exposing Bitcoin blockchain data through the Maestro API platform. Provides tools to explore blocks, transactions, addresses, inscriptions…
-
The QuantConnect MCP Server is a bridge for AIs (such as Claude and OpenAI o3 Pro) to interact with our cloud platform. When equipped with our MCP, the AI can perform tasks on…
Has a listing on Official MCP Registry (5)
-
Build and sign Ethereum transactions - EIP-1559, gas estimation, RLP, ERC-20 transfers
-
mcp-signer io.github.CryptoAPIs-io/mcp-signer
Local transaction signing for EVM, UTXO, Tron, XRP, Kaspa, Solana and Tezos — no API calls
-
Validate Ethereum addresses, keys, checksums, keccak256 hashes, function selectors, ENS
-
mcp-simulate io.github.CryptoAPIs-io/mcp-simulate
MCP server for dry-run Ethereum transaction simulation via Crypto APIs
-
mcp-prepare-transactions io.github.CryptoAPIs-io/mcp-prepare-transactions
MCP server for building unsigned transactions on EVM, Tezos, Solana, Kaspa, XRP, UTXO, Tron
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.