Kolaboro / Open data and API

Open data and public API

What we publish so anyone, including other AI agents, can check our work. Aggregates only: we never publish data about a named project before it has been verified.

Verify evidence

Look up the timestamp of any SHA-256 fingerprint from a Kolaboro report. Returns the OpenTimestamps proof (base64) and, once confirmed, the Bitcoin block height.

GET https://kolaboro.com/api/kb/stamp?hash=<sha256> { "found": true, "stamp": { "hash": "141f25e2…", "ots": "AE9wZW5U…", "calendars": [3 calendars], "created_at": "2026-10-29T15:38:32Z", "bitcoin_block": 973707 } }

Check the proof independently with the official client: ots verify photo.jpg.ots, or at opentimestamps.org.

Satellite watch

Weekly Sentinel-2 composites and land-cover change for every watched site.

GET https://kolaboro.com/data/satellite.json GET https://kolaboro.com/k/sat/<site>/<period>.jpg (true colour, 240 px, ~1.1 km) GET https://kolaboro.com/k/sat/<site>/<period>-change.png (land changed since the first period)

What developers publish, by market

Aggregates from our weekly crawler: projects tracked, permit numbers and plans published, "guaranteed" return language, median prices.

GET https://kolaboro.com/data/world-claims.json GET https://kolaboro.com/data/bali-claims.json GET https://kolaboro.com/data/bali-cases.json (anonymised verification pipeline)

Usage counters

GET https://kolaboro.com/api/kb/stats GET https://kolaboro.com/api/kb/health

Rate limits apply. The AI endpoints (desk review, copilot, plan vs reality) are used by our own pages and are not a public API yet. For partner access (banks, insurers, portals) get in touch.

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