# Casey Hand — Open Source Developer & AI Engineer

> Personal portfolio and project directory for Casey Hand, a Seattle-based software engineer. Writes MCP (Model Context Protocol) servers in TypeScript — 25+ open source tools that let AI agents work with databases, APIs, git, and file systems. 2,000+ GitHub stars, 250K+ downloads. Open to full-time and contract work (remote preferred).

## About

- [About](https://caseyjhand.com/#about): Background, skills, and stats — TypeScript, MCP, AI agents, system design.
- [Contact](https://caseyjhand.com/#contact): Email, GitHub, and LinkedIn. Open to remote full-time and contract roles.
- [Accessibility Statement](https://caseyjhand.com/accessibility): WCAG 2.1 AA conformance details.

## Projects — Core Infrastructure

- [MCP TypeScript Core](https://github.com/cyanheads/mcp-ts-core): Agent-native TypeScript framework for building MCP servers. Declarative definitions, pluggable auth, multi-backend storage, OpenTelemetry, and Cloudflare Workers support.
- [MCP Resources & Guides](https://github.com/cyanheads/model-context-protocol-resources): Guides, reference material, and example servers for MCP development.
- [Workflows MCP Server](https://github.com/cyanheads/workflows-mcp-server): Run multi-step agent workflows defined in YAML.
- [MCP Reporter](https://github.com/cyanheads/mcp-reporter): Generate readable reports of an MCP server's tools, resources, and prompts.

## Projects — Data & Research

- [ATLAS MCP Server](https://github.com/cyanheads/atlas-mcp-server): Neo4j-backed task management for LLM agents. Three-tier model: projects, tasks, and knowledge nodes.
- [PubMed MCP Server](https://github.com/cyanheads/pubmed-mcp-server): Search and retrieve biomedical literature from PubMed. Includes a research agent scaffold.
- [ClinicalTrials.gov MCP Server](https://github.com/cyanheads/clinicaltrialsgov-mcp-server): Search and analyze clinical trials. Patient eligibility matching and trend analysis.
- [PubChem MCP Server](https://github.com/cyanheads/pubchem-mcp-server): PubChem chemical database tools. Compounds, properties, safety data, bioactivity, and cross-references.
- [Congress.gov MCP Server](https://github.com/cyanheads/congressgov-mcp-server): U.S. congressional data — bills, votes, members, committees, CRS reports, and the Congressional Record.
- [OpenFEC MCP Server](https://github.com/cyanheads/openfec-mcp-server): FEC campaign finance data — candidates, contributions, disbursements, expenditures, filings, and election lookup.
- [SEC EDGAR MCP Server](https://github.com/cyanheads/secedgar-mcp-server): Query SEC EDGAR filings, XBRL financials, and company data. Full-text search since 1993.
- [OpenAlex MCP Server](https://github.com/cyanheads/openalex-mcp-server): Search and analyze 270M+ academic publications via OpenAlex.
- [Hacker News MCP Server](https://github.com/cyanheads/hn-mcp-server): Hacker News feeds, threaded discussions, user profiles, and full-text search.
- [Survey MCP Server](https://github.com/cyanheads/survey-mcp-server): Conversational surveys with conditional logic and structured data collection.
- [Protein MCP Server](https://github.com/cyanheads/protein-mcp-server): 3D protein structure data from RCSB PDB, PDBe, and UniProt.
- [arXiv MCP Server](https://github.com/cyanheads/arxiv-mcp-server): Search arXiv, fetch paper metadata, and read full-text content.
- [CDC Health MCP Server](https://github.com/cyanheads/cdc-health-mcp-server): 1,487+ CDC public health datasets — disease surveillance, mortality, vaccinations, and more.
- [OpenFDA MCP Server](https://github.com/cyanheads/openfda-mcp-server): FDA drugs, food, devices, and recalls via openFDA.
- [NHTSA Vehicle Safety MCP Server](https://github.com/cyanheads/nhtsa-vehicle-safety-mcp-server): NHTSA vehicle safety — recalls, complaints, crash ratings, VIN decoding.
- [NWS Weather MCP Server](https://github.com/cyanheads/nws-weather-mcp-server): Real-time US weather forecasts, alerts, and observations via National Weather Service.

## Projects — Development & System Utilities

- [Git MCP Server](https://github.com/cyanheads/git-mcp-server): Git operations for LLM agents — commits, branches, diffs, logs, and more.
- [Obsidian MCP Server](https://github.com/cyanheads/obsidian-mcp-server): Interact with an Obsidian vault via the Local REST API plugin. Read, write, and search notes.
- [Filesystem MCP Server](https://github.com/cyanheads/filesystem-mcp-server): File and directory management: read, write, search/replace, and directory traversal.
- [Toolkit MCP Server](https://github.com/cyanheads/toolkit-mcp-server): System utilities for LLM agents: network diagnostics, system info, and monitoring.
- [ntfy MCP Server](https://github.com/cyanheads/ntfy-mcp-server): Send push notifications via ntfy from an LLM agent.
- [Calculator MCP Server](https://github.com/cyanheads/calculator-mcp-server): Evaluate expressions, simplify algebra, and compute symbolic derivatives.

## Projects — AI Integrations

- [Mentor MCP Server](https://github.com/cyanheads/mentor-mcp-server): Second-opinion code reviews and design critiques via the Deepseek API.
- [Perplexity MCP Server](https://github.com/cyanheads/perplexity-mcp-server): Search-augmented AI via the Perplexity API, with citation support.

## Projects — Other

- [repo-map](https://github.com/cyanheads/repo-map): Crawl a codebase and generate a visual summary of its structure.
- [Pixoo Toolkit](https://github.com/cyanheads/pixoo-toolkit): TypeScript toolkit for Divoom Pixoo pixel displays — rendering, animations, and device control.

## Optional

- [GitHub Profile](https://github.com/cyanheads): Full repository list and contribution activity.
- [LinkedIn](https://www.linkedin.com/in/caseyjhand/): Professional background and work history.
- [Resume (JSON)](https://caseyjhand.com/resume.json): Machine-readable resume in JSON Resume format.