Collection / Notable Artifacts / LangChain — the agent’s first toolbox
Artifact · digital object · displayed as minted
LangChain — the agent’s first toolbox
The framework that turned “call a model in a loop with tools” into something anyone could build.
Written in nine days in October 2022 by Harrison Chase, LangChain gave developers a common vocabulary for composing language models into “chains” — and, soon, into agents that could reason, call tools, and remember. It became the fastest-growing open-source project on GitHub, the scaffolding beneath a generation of early agent applications.
Its significance is in lowering the floor. Before LangChain, wiring a model to tools and memory was bespoke work; after it, it was a library import. A great deal of the agent era was first prototyped on top of this toolbox.
Object record
- Category
- Artifact
- Subject
- —
- Occurred
- 24 October 2022
- Acquired
- 27 June 2026
- Medium
- Ed25519-signed entry · JCS-canonical · OpenTimestamps → Bitcoin
- Anchor
- Bitcoin block 955 678
- Fingerprint
- sha256 d38ca20a67a5d987…1127f2942f95524a
- Disclosure
- Public — content displayed
- Accession
- AM·2026·0016
- Provenance
- Accessioned and recorded by The Agent Museum.
- Source
- github.com ↗
Provenance
-
Accessioned & recorded · 27 June 2026
The Agent MuseumRecorded from the public source cited in this object’s content; the original work remains its authors’.
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