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Vellis · Apache-licensed knowledge infrastructure

Structured knowledge. Controlled change. Durable systems.

Vellis is an open-source context graph engine for AI agents: a typed, locally owned system for knowledge that must be shared, changed, and recovered without losing meaning. MCP-capable agents operate against the same explicit graph contract.

  • Clone the repo and run the graph engine locally
  • Connect Claude, Codex, and other MCP-capable tools
  • Model schemas, provenance, and decisions as a typed graph
  • Query, write, validate, migrate, snapshot, and replay
Run Vellis locally See the engine
One typed graph that agents can read, write, and validate against.

Start here

Run it · understand it · build with us
Abstract V-shaped Vellis engine assembly with layered glass plates and an orange core.

Vellis Engine

Run and inspect the Apache-licensed typed graph engine, its MCP surface, and its snapshot-and-replay workflow.

Explore the engine →
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Thesis

Read why durable AI systems need explicit models, governed change, and recoverable state.

Read the thesis →
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Community

Clone Vellis, follow releases, ask questions, and share what you are learning with the lab.

Join the community →

Latest perspectives

View library →
Jul 29 · Personal graph Adding My Book Collection to Vellis Read -> Jun 11 · Substrate The graph is a theory Read -> Jun 4 · Governance Runtime-native controls: policy where execution happens Read ->
How it works — from clone to shared knowledge
1

Clone

Pull the repo and run the graph engine on your machine.

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2

Model

Define typed nodes, links, and constraints for the work.

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3

Connect

Point MCP-capable agents at one shared, graph-backed knowledge model.

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4

Iterate

Read, write, migrate, and validate changes with schema checks.

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5

Reuse

Each pass leaves explicit, durable knowledge for the next one.

Builder · production champion

Build with the open graph

Vellis starts as a repo you can run and shape yourself. Capable teams can carry it a long way; when the graph needs operating controls, audit paths, approval workflows, or production hardening, Volant Partners can help.

Join the builder path See production support
Stay close

Follow the lab work

Read the Thesis, browse Perspectives, or send a note if you want to shape the next open project.

Browse Perspectives