Developer Tools MCP Servers
Code, Git, APIs, SDKs, CI/CD, developer workflows, and local developer tooling.

Ethereum & EVM Message Signing
Published by GitHub account nirholas
A local MCP server that lets an assistant sign, verify and recover Ethereum messages and EIP-712 typed data, plus work with signature components.

Repository Intelligence
Published by GitHub account nirholas
A local MCP server that lets an assistant analyze code repositories: structure, dependencies, complexity, security issues and semantic code search.

Pump SDK MCP Server
Published by GitHub account nirholas
Local MCP server exposing the Pump SDK for Solana: build, quote and inspect Pump.fun token launches, bonding-curve trades, AMM pools and creator fees.
Metaplex Agent Registry
Published by GitHub account nirholas
Mints and registers AI agents on-chain in the Metaplex Agent Registry on Solana, with an EIP-8004 identity, from any MCP client.

GitHub to MCP Converter
Published by GitHub account nirholas
Converts a GitHub repository into a runnable MCP server by analyzing its API specs, code and docs and generating tool wrappers.

Documentation Extractor
Published by GitHub account nirholas
Fetches and extracts llms.txt and install.md documentation from websites so an assistant can work with agent-ready docs.

Crypto Tools Registry
Published by GitHub account nirholas
Serves a searchable registry of 800+ crypto, DeFi and NFT MCP tools, letting an assistant find and compare servers by category, chain or popularity.
three.ws Concierge
Published by GitHub account nirholas
Local stdio MCP server that lets an assistant ask a website's AI concierge grounded questions and generate embed code for adding a concierge widget to a site.

Claude Code Explorer MCP
Published by GitHub account nirholas
Lets an assistant browse and search the Claude Code CLI source, including its tools and commands.
three.ws Brain
Published by GitHub account nirholas
Local stdio MCP server that lets an assistant list LLM providers and run chat completions through the three.ws multi-provider router.
three.ws Assistant Widget
Published by GitHub account nirholas
Generates paste-ready embed code for a floating 3D avatar chatbot widget on a website, from a described look and behavior.
three.ws Agent Payments
Published by GitHub account nirholas
Governed x402 payment sessions for AI agents: create budgeted, allowlisted sessions and pay paid HTTP endpoints without exposing wallet keys.

UCAI
Published by GitHub account nirholas
UCAI turns a smart contract ABI into a ready-made MCP server, so an assistant can read and, if enabled, write to that contract on Ethereum.

Dependency Mcp
Published by GitHub account niradler
Lets an assistant look up latest package versions and verify specific versions across npm, PyPI, Maven, NuGet, RubyGems, Crates.io, and Go modules.

Golden Dataset Mcp
Published by GitHub account nipunkhanderia
Manages version-controlled golden Q&A datasets and scores RAG/LLM answers with TF-IDF similarity, all from an assistant conversation.

Citation Check
Published by GitHub account ninefiveonefive
Remote MCP endpoint that runs free mechanical checks on AI-generated text: unnamed counts, dangling references, bad arithmetic and misquotes.

Nim Language Server
Published by GitHub account nim-lang
A Nim language server that also runs as an MCP server, giving coding assistants symbol navigation, diagnostics and type resolution in Nim projects.

diffctx
Published by GitHub account nikolay-e
Local MCP server that analyzes a git diff or symbol and selects the minimum code an assistant needs to review it, within a token budget.

MCP Fiscal Brasil
Published by GitHub account nikolasdehor
Connects an AI assistant to Brazilian fiscal data: CNPJ/CPF lookups, NF-e/NFC-e validation and parsing, SPED and eSocial analysis, and tax-regime comparison.

Trace Mcp
Published by GitHub account nikolai-vysotskyi
Local MCP server that indexes a codebase or markdown vault into a graph and serves it to coding agents, so they query structure instead of re-reading files.

Universalbench
Published by GitHub account nikhilgogulwar
A remote MCP server that lets an assistant run code, query databases, call LLMs and commit to GitHub, with a free tier.

Coding Challenge Solutions
Published by GitHub account nikhil-bhat
A local MCP server that lets an assistant search coding challenge solutions by keyword, optionally filtered by programming language.

fs-mcp-rs
Published by GitHub account nihmadev
A configurable filesystem MCP server that gives an assistant bounded read, search, edit, and optional terminal access inside operator-approved directories.

Breaking Changes & Migration Data
Published by GitHub account nigelcox98
Lets an assistant look up what breaks when upgrading a software package and what to use instead, based on official documentation.