Olo Commons, open source

An open mind, built from verified knowledge.

Olo Commons grows every 15 minutes from sources the world already trusts: Wikipedia (in English and Spanish), Wikidata, the Internet Archive, arXiv, Project Gutenberg, PubMed and Data.gov. Every fact keeps where it came from, its licence and a fingerprint of its content. Anyone can read it. Only verified sources can write to it. The Olo in helius-olo.io and in the Helius app think with it.

…atoms of knowledge
…links between them
…trusted sources
…questions answered, 24 h

The brain

Watch it think

Every point of light is an atom of knowledge with its provenance; every thread, a connection Olo found between two of them. Atoms arrive all day and settle into the graph while you watch. Drag to orbit, pinch or scroll to zoom, tap an atom to light up what it knows.

Loading the Commons
Drag to orbit · pinch to zoom · tap an atom

Growth

Thirty days of learning

AtomsLinks

Ask

Ask the Commons, get an answer that was checked

Olo finds the passages (meaning search merged with keyword search), writes an answer in a few sentences, then Zeus checks every sentence against the passages it cites: supported, contradicted or not covered, with the quoted evidence. Nothing is asserted without a source you can open.

Curiosity

What Olo is reading next

When a question finds nothing, Olo keeps the topic words (never the question) and goes looking for them in its sources on the next ingest. This is the Commons growing toward what people actually ask.

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Zeus

The model that checks the answers

Zeus is Olo's own verifier: a small open-weight model fine-tuned on the Commons, trained in the open and scored on a frozen test split after every run. Every number here is measured; nothing is estimated.

Research log
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Latest

What Olo read in the last hours

Sources

Who Olo is allowed to learn from

Only enabled, openly licensed sources are ever fetched. Each has a trust level that feeds the quality score of every atom.

Propose a source

Build

Projects on the Commons

Apps, research, datasets and tools built on Olo knowledge. Add yours; it appears once reviewed.

Build on the Commons

Cited passages, or a checked answer, in one call

Read-only, free, no key needed. 120 questions an hour per address; partners get 3,000 with a key. Query text is never stored. olo-query returns passages; olo-answer adds a drafted answer with a verdict on every sentence.

Full API reference

    

Playground

See the raw response

// response appears here

Bulk data

Take the whole Commons with you

Page through every atom and every link, in creation order, with the anon key. Build a dataset, a graph, a model, an index. Attribute the compilation (CC BY-SA 4.0) and respect each atom's licence.

POST /rest/v1/rpc/olo_export
{"p_after": "1970-01-01", "p_limit": 500}
→ { atoms: [...], next_after: "2026-10-20T18:15:03Z" }

POST /rest/v1/rpc/olo_links_export
{"p_after": "1970-01-01", "p_limit": 2000}

Headers: apikey: <anon key>, Content-Type: application/json. Pass the returned next_after as p_after for the next page.

Starter kits

Three things you can ship this weekend

Each one is a single file in the repository. Copy it, change the question, you have a product.

Contribute

Four ways in, from five minutes to a weekend

5 minutesNo code

Propose a source

Know an open, trustworthy source Olo should read? Tell us the licence and why. Reviewed in public.

10 minutesNo code

Flag a bad atom

Wrong, outdated, duplicated or badly extracted? Send the atom's fingerprint and what is wrong. Fixes land in the next ingest.

An eveningTypeScript

Add a source connector

One function in olo-ingest that returns candidates from a public API, plus a registry row. Merged connectors earn HLS from the treasury and a Builder mark on your profile.

A weekendAnything

Build and list a project

Ship something on the Commons and add it to the gallery above. Approved projects are featured here and in the Helius app.

People building this

Contributors

All on GitHub
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Towards Web 5

Verified people. Verified knowledge.

Helius verifies that a real person was really there. Olo Commons verifies where a fact came from. Put the two together and you get a web where both the people and the knowledge can be trusted, and where the record of what humanity knows belongs to everyone, like the Internet Archive and Wikipedia before it.

Code: Apache-2.0Data: each atom keeps its own licenceRead API: free

Protection

How the Commons is kept safe

Write-only by the server

No browser, app or API key can add or change knowledge. Only the hourly ingester, running inside Supabase with the service role, writes.

Allow-listed sources

The ingester can only fetch sources that are enabled in the registry. A new source needs a licence and a review before a single byte is read.

Fingerprinted

Every atom carries a SHA-256 of its content and the time it was retrieved. Duplicates are refused; tampering is detectable.

Nothing personal

Only public knowledge is stored. Questions are never kept, only their length; addresses are hashed with a daily salt for rate limiting.