# LangChain founder

entity: /record/langchain.md  
predicate: founder  
page: /record/langchain/founder  
as_of: 2026-11-01  

As of November 1, 2026, LangChain's founder on the AsOf record is Harrison Chase, undated on the record, from 2 secondary sources (research.contrary.com and sequoiacap.com). The record holds 1 claim on LangChain's founder, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current founder

What the record asserts on 2026-11-01.

- [LangChain](/record/langchain.md) | founder | Harrison Chase | valid undated to present | conf 0.80 | valid | [clm_E6309606C138](/claim/clm_E6309606C138.md)
  sources: https://research.contrary.com/company/langchain, https://sequoiacap.com/founder/harrison-chase, https://www.wikidata.org/wiki/Q117340550

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [LangChain](/record/langchain.md) | founder | Harrison Chase | valid undated to present | conf 0.80 | valid | [clm_E6309606C138](/claim/clm_E6309606C138.md)
  sources: https://research.contrary.com/company/langchain, https://sequoiacap.com/founder/harrison-chase, https://www.wikidata.org/wiki/Q117340550

## Questions this record answers

### What is LangChain's current founder?

Harrison Chase, undated on the record, from 2 secondary sources (research.contrary.com and sequoiacap.com). The record asserts this claim as of November 1, 2026 (status valid, confidence 0.80).


## Get this data

- JSON: /v1/entities/langchain/founder (this fact) · /v1/entities/langchain?predicates=founder (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: timeline(entity: "langchain", predicates: ["founder"]) for every dated value · fetch(id: "/record/langchain/founder.md") for this page
- Entity twin: /record/langchain.md · timeline: /timelines/langchain.md

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.