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Building LLM Agents
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Building LLM Agents

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cyanheads/README.md

Hi, I'm Casey 👋

Open to Work Website

I build open source tools that connect LLMs to things. Based in Seattle.

Agent-native TypeScript framework for building Model Context Protocol (MCP) servers.

  • Declarative tool definitions
  • Pluggable auth
  • Multi-backend storage
  • OpenTelemetry
  • Runs on Node.js and Cloudflare Workers
npx @cyanheads/mcp-ts-core init my-mcp-server

Start your coding agent in the scaffolded project and describe what you want to build. Ships with Agent Skills and framework docs built in.

Servers below are built on it.

MCP servers

Server Description Hosted Server
MCP infrastructure
model-context-protocol-resources MCP guides and examples
mcp-reporter Server capability reports
workflows-mcp-server YAML-defined multi-step workflows
External data sources
arxiv-mcp-server arXiv paper search and full-text reading /mcp
clinicaltrialsgov-mcp-server ClinicalTrials.gov search /mcp
congressgov-mcp-server U.S. congressional data /mcp
hn-mcp-server Hacker News feeds and search /mcp
openalex-mcp-server 270M+ academic publications /mcp
protein-mcp-server Protein structures (PDB, UniProt)
pubchem-mcp-server PubChem chemical database /mcp
pubmed-mcp-server PubMed biomedical literature /mcp
secedgar-mcp-server SEC EDGAR filings and financials /mcp
Local & workspace
atlas-mcp-server Neo4j task and knowledge graphs
calculator-mcp-server Math evaluation, simplification, derivatives /mcp
filesystem-mcp-server File and directory operations
git-mcp-server Git operations
obsidian-mcp-server Obsidian vault access
survey-mcp-server Conversational surveys
toolkit-mcp-server Network diagnostics, system info
AI services
mentor-mcp-server Code review via Deepseek
perplexity-mcp-server Search-augmented AI (Perplexity)
Hardware & notifications
ntfy-mcp-server Push notifications via ntfy
pixoo-mcp-server Divoom Pixoo LED control

Other projects

Project Description
JavaScript claude-sidebar-modifier Firefox extension to resize/hide the Claude.ai sidebar
TypeScript pixoo-toolkit Divoom Pixoo display SDK (16/32/64)
Python repo-map AI-generated codebase summaries
TypeScript scripts-ts Cross-platform dev utility scripts
Lua TwilightAscensionRares WoW addon for Twilight Highlands rare spawn tracking

Open to work

I build AI/LLM tooling and infrastructure. Looking for full-time or contract roles where I can keep doing that.

Available for:

  • Full-time positions
  • Contract and consulting
  • Custom MCP server development (view framework)

Support

If any of this has been useful to you, I'd appreciate the support.

Buy Me A Coffee

Website: caseyjhand.com | Email: casey@caseyjhand.com


When we share knowledge, everyone benefits.

Pinned Loading

  1. atlas-mcp-server atlas-mcp-server Public

    A Model Context Protocol (MCP) server for ATLAS, a Neo4j-powered task management system for LLM Agents - implementing a three-tier architecture (Projects, Tasks, Knowledge) to manage complex workfl…

    TypeScript 469 68

  2. obsidian-mcp-server obsidian-mcp-server Public

    Obsidian Knowledge-Management MCP (Model Context Protocol) server that enables AI agents and development tools to interact with an Obsidian vault. It provides a comprehensive suite of tools for rea…

    TypeScript 423 64

  3. model-context-protocol-resources model-context-protocol-resources Public

    Exploring the Model Context Protocol (MCP) through practical guides, clients, and servers I've built while learning about this new protocol.

    276 29

  4. git-mcp-server git-mcp-server Public

    An MCP (Model Context Protocol) server enabling LLMs and AI agents to interact with Git repositories. Provides tools for comprehensive Git operations including clone, commit, branch, diff, log, sta…

    TypeScript 201 50

  5. mcp-ts-core mcp-ts-core Public

    Agent-native TypeScript framework for building MCP servers. Build tools, not infrastructure.

    TypeScript 123 23

  6. repo-map repo-map Public

    repo-map generates LLM-enhanced summaries and analysis of software repositories, providing developers with valuable insights into project structures, file purposes, and potential considerations acr…

    Python 40 15