Semiont is an open-source semantic wiki where humans and AI agents collaboratively annotate, link, and extend a shared corpus of documents.

Most organizations sit on vast document collections that are searchable but not understood. Semiont closes that gap. Import your corpus — contracts, research papers, product specs, regulatory filings — and the system immediately begins identifying entities, proposing annotations, and linking related concepts across documents. Domain experts review and refine what AI proposes; AI scales what experts start. The result is a grounded knowledge graph where every node traces back to a specific passage in a specific document — a semantic wiki that grows smarter with every interaction.
That wiki becomes infrastructure. Use it to power semantic search and contextual recommendations in your products. Feed it to RAG pipelines so your AI assistants answer from verified, cited sources instead of hallucinating. Automate compliance checks by querying relationships across regulatory documents. Surface hidden connections across research portfolios that would take analysts months to find manually. Every annotation your team creates — or your agents produce — compounds into an asset that makes the next query smarter, the next review faster, and the next product feature possible.
Self-hosted, so your data stays on your infrastructure. Inference runs on Anthropic (cloud) or Ollama (fully local) — mix providers per worker to balance cost, capability, and privacy. Built on the W3C Web Annotation standard — portable, interoperable, and sovereign.
Eliminate Cold Starts — Import a set of documents and the seven flows immediately begin producing value: AI agents detect entity mentions, propose annotations, and generate linked resources while humans review, correct, and extend the results. The knowledge graph grows as a byproduct of annotation — no upfront schema design, manual data entry, or batch ETL pipeline required.
Calibrate the Human–AI Mix — Because humans and AI agents share identical interfaces, organizations can dial the mix to fit their constraints. A domain with abundant expert availability and a high accuracy bar can run human-primary workflows with AI suggestions; a domain rich in GPU capacity but short on specialists can run agent-primary pipelines with human spot-checks. Supervision depth, automation ratio, and quality gates are deployment decisions — not architectural rewrites.
Peer Collaboration — Humans and AI agents are architectural equals. Every operation flows through the same API, event bus, and event-sourced storage regardless of who initiates it. Any workflow can be performed manually, automated by an agent, or done collaboratively — through the GUI, the CLI, the TypeScript SDK, or agent skills for agentic coding assistants.
Document-Grounded Knowledge — Knowledge is always anchored to source documents. Annotations point into specific passages; references link documents to each other. The knowledge graph is a projection of these grounded relationships, not a replacement for the original material.
Humans and AI agents work as peers through seven composable workflows:
Clone the empty template and start the backend — no npm or Node.js required:
git clone https://github.com/The-AI-Alliance/semiont-empty-kb.git my-kb
cd my-kb
export ANTHROPIC_API_KEY=<your-api-key>
.semiont/scripts/local_backend.sh --email admin@example.com --password password
Or explore a pre-populated knowledge base:
See the Quick Start for full setup instructions.
Semiont is Apache 2.0 licensed and developed in the open. We welcome contributions from the community.
Part of the AI Alliance — building open, safe, and beneficial AI for everyone.