{
  "data": null,
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/people/johann-schleier-smith/",
    "json": "https://www.anchorterminal.com/people/johann-schleier-smith/index.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/people/johann-schleier-smith/index.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/people/johann-schleier-smith/index.min.md"
  },
  "markdown": "Crystal DBA founder/former CEO; Postgres MCP Pro contributor; now Temporal.\n\nJohann Schleier-Smith founded Crystal DBA and was its chief executive until Temporal acquired it in September 2025, when he joined Temporal to work on systems for AI applications in production. He earlier co-founded if(we), the company behind the Tagged social network, and holds a Berkeley PhD on distributed systems and serverless computing.\n\n- LinkedIn: https://www.linkedin.com/in/jssmith\n- X: https://x.com/jssmith\n\n## What Johann builds\n\n- [Postgres MCP Pro](https://www.anchorterminal.com/tools/postgres-mcp-pro.md), graded F, 37/100, in Databases \u0026 files. PostgreSQL server with configurable read/write access plus DBA tooling (index tuning with hypopg, EXPLAIN analysis, top-query and workload analysis, health checks). Crystal DBA founder/former CEO; Postgres MCP Pro contributor; now Temporal, researched 2026-10-27.\n\n## Questions\n\n### Who is Johann Schleier-Smith?\n\nJohann Schleier-Smith founded Crystal DBA and was its chief executive until Temporal acquired it in September 2025, when he joined Temporal to work on systems for AI applications in production. He earlier co-founded if(we), the company behind the Tagged social network, and holds a Berkeley PhD on distributed systems and serverless computing.\n\n### What does Crystal DBA (acquired by Temporal in September 2025) make?\n\nAnchor Terminal lists Postgres MCP Pro from Crystal DBA (acquired by Temporal in September 2025). PostgreSQL server with configurable read/write access plus DBA tooling (index tuning with hypopg, EXPLAIN analysis, top-query and workload analysis, health checks).\n\n### How are Johann's tools graded?\n\nPostgres MCP Pro is graded F, 37 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://temporal.io/blog/temporal-and-the-next-frontier-scaling-ai-reliably\n- https://github.com/crystaldba/postgres-mcp\n- https://github.com/jssmith\n- https://johann.schleier-smith.com/about/\n- https://www.linkedin.com/in/jssmith\n- https://x.com/jssmith\n- https://github.com/crystaldba\n\nThese 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. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "attributionRequired": true,
    "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-28",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.7",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run",
    "terms": "https://www.anchorterminal.com/terms/#data"
  },
  "page": {
    "breadcrumbs": [
      {
        "name": "Home",
        "url": "https://www.anchorterminal.com/"
      },
      {
        "name": "People building AI tools",
        "url": "https://www.anchorterminal.com/people/"
      },
      {
        "name": "Johann Schleier-Smith",
        "url": ""
      }
    ],
    "description": "Johann Schleier-Smith is crystal DBA founder/former CEO; Postgres MCP Pro contributor; now Temporal. Postgres MCP Pro on Anchor Terminal, with grades, an about and public profiles.",
    "facts": null,
    "h1": "Johann Schleier-Smith",
    "image": "https://www.anchorterminal.com/assets/og/default.png",
    "path": "/people/johann-schleier-smith/",
    "published": "",
    "section": "people",
    "title": "Johann Schleier-Smith | Anchor Terminal",
    "toc": null,
    "updated": "2026-10-27",
    "url": "https://www.anchorterminal.com/people/johann-schleier-smith/"
  },
  "tokens": {
    "markdown": 800,
    "slim": 580
  },
  "version": 1
}