# Justin Spahr-Summers (slim)

> Justin Spahr-Summers is original reference-server contributor; MCP co-creator; former Anthropic employee. PostgreSQL (archived MCP reference server) and Puppeteer (archived MCP reference server) on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/justin-spahr-summers/index.md (~850 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/people/justin-spahr-summers/index.json · canonical https://www.anchorterminal.com/people/justin-spahr-summers/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-27
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Original reference-server contributor; MCP co-creator; former Anthropic employee.

- LinkedIn: https://www.linkedin.com/in/jspahrsummers/

## What Justin builds

- [PostgreSQL (archived MCP reference server)](https://www.anchorterminal.com/tools/postgres-reference-server-archived.md), graded F, 18.6/100, in Databases & files. Archived PostgreSQL reference MCP server for SQL queries. Its read-only transaction wrapper has a documented bypass. Original reference-server contributor; MCP co-creator; former Anthropic employee, researched 2026-10-27.
- [Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.md), graded F, 30.8/100, in Browser automation. The original browser-automation reference server, driving Chrome through Puppeteer with screenshots and JavaScript evaluation. Original reference-server contributor; MCP co-creator; former Anthropic employee, researched 2026-10-27.

## Questions

### Who is Justin Spahr-Summers?

Justin Spahr-Summers is original reference-server contributor; MCP co-creator; former Anthropic employee.

### What does Model Context Protocol (archived) make?

Anchor Terminal lists PostgreSQL (archived MCP reference server) and Puppeteer (archived MCP reference server) from Model Context Protocol (archived).

### How are Justin's tools graded?

PostgreSQL (archived MCP reference server) is graded F, 18.6 out of 100; Puppeteer (archived MCP reference server) is graded F, 30.8 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://github.com/modelcontextprotocol/servers-archived/commits/main/src/postgres
- https://github.com/jspahrsummers
- https://jspahrsummers.com
- https://www.linkedin.com/in/jspahrsummers/
- https://github.com/modelcontextprotocol/servers-archived
- https://github.com/modelcontextprotocol/servers-archived/tree/main/src/postgres
- https://github.com/modelcontextprotocol/servers-archived/commits/main/src/puppeteer
- https://github.com/modelcontextprotocol/servers-archived/tree/main/src/puppeteer

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched.