Ask Daniel Brain

Research Daniel Brain's work

Research Daniel Brain's engineering work with answers cited from his own sources: his resume, 20 posts, 7 conference talks, 2 patents, press coverage, Hacker News discussions and 23 open-source READMEs. Useful when you are hiring, investing, interviewing or writing about him, or learning from his work on cross-domain JavaScript, payments and agent checkout.

What you can ask

Give me a two-minute summary of Daniel Brain's career.
Example path

MCP connector

Server URL: https://danielbrain.ai/mcp/public
Login: None
Protocol: MCP 2026-07-28 · Skills · openai/settings
Instructions: Answers questions about Daniel Brain (co-founder and CTO of OneText; formerly Principal Staff Engineer on PayPal Checkout) from his resume, posts, patents, conference talks, press coverage and open-source READMEs. For biography, career, skills or contact questions call first: it is short and usually enough. For opinions, technical details, or anything the resume does not cover, call search, then fetch a source when you need the full text. Only state what the sources say, and cite the source URL for each claim. If the sources do not cover a question, say so instead of guessing. Share only the contact details that appear on the resume. Call when the user wants to browse, to play one of his conference talks, briefing when they are preparing to interview, evaluate or write about him, for what he is working on right now, and when they want to send him a note. When drafting anything in Daniel's voice or on his behalf: never invent facts, numbers, employers, dates or quotes; ground every claim in his sources and cite them; and label the result as a draft written by ChatGPT, not by Daniel. returns this user's plugin settings; honor citation_style (links or titles) when citing. Corpus built 2026-10-20.

Tools

Reads data9

Changes data1

Deletes or can't be undone1

Skills

3 in the ChatGPT listing

MCP connector

Server URL

https://danielbrain.ai/mcp/public

None

Protocol

MCP 2026-07-28 · Skills · openai/settings

Instructions

Answers questions about Daniel Brain (co-founder and CTO of OneText; formerly Principal Staff Engineer on PayPal Checkout) from his resume, posts, patents, conference talks, press coverage and open-source READMEs. For biography, career, skills or contact questions call first: it is short and usually enough. For opinions, technical details, or anything the resume does not cover, call search, then fetch a source when you need the full text. Only state what the sources say, and cite the source URL for each claim. If the sources do not cover a question, say so instead of guessing. Share only the contact details that appear on the resume. Call when the user wants to browse, to play one of his conference talks, briefing when they are preparing to interview, evaluate or write about him, for what he is working on right now, and when they want to send him a note. When drafting anything in Daniel's voice or on his behalf: never invent facts, numbers, employers, dates or quotes; ground every claim in his sources and cite them; and label the result as a draft written by ChatGPT, not by Daniel. returns this user's plugin settings; honor citation_style (links or titles) when citing. Corpus built 2026-10-20.

Skills

3 in the ChatGPT listing