Lattiq Observe

Know When Web Content Changes

Signed observation receipts for developers, AI agents, and automated workflows.

Try it free — 5 checks/day View Pricing

No credit card required. Read the docs

5 FREE DAILY CHECKS / ED25519 SIGNED RECEIPTS / SINGLE POST REQUEST / NO RATE-LIMIT SURPRISES

Everything you need to detect changes

One endpoint. One receipt. Know exactly when a URL changed — and have a tamper-evident record of the observation.

01 — Detect

Check any URL

Send any public URL. We fetch it, hash the content, compare with the last observation, and tell you whether it changed.

02 — Sign

Get a signed receipt

Every observation produces an Ed25519-signed receipt. The receipt is tamper-evident and includes a content hash, timestamp, and URL — independently verifiable.

03 — Automate

Automate freshness gates

Wire changed: true into CI/CD pipelines, cache invalidation, agent workflows, or any monitoring stack. If it changed, you know.

How it works

Integrate in minutes. No SDK, no state management — just HTTP.

Get your API key

Request a free API key from the dashboard. No credit card needed. 5 checks per day on the free tier, forever.

POST the URL

Send a POST to /v1/stale-check with the URL you want to observe. That's the entire integration.

Get the receipt

Receive a JSON response: changed boolean, content hashes, timestamp, and a signed observation receipt for your records.

Quickstart Copy

POST a URL — returns a signed observation receipt

curl -X POST https://api.lattiq.ai/v1/stale-check
-H "Authorization: Bearer YOUR_API_KEY"
-H "Content-Type: application/json"
-d '{"url": "https://example.com"}'

Response

{ "url": "https://example.com", "timestamp": "2026-04-11T22:00:00Z", "changed": true, "last_hash": "b1a7...d3e1", "current_hash": "c2f0...a4b9", "observation_receipt": "eyJhb...l_I-A" }

Built for every automation layer

From solo developers to AI agent networks.

CI/CD

Deployment pipelines

Gate deployments on upstream content changes. Skip the build if nothing upstream changed. Trigger rebuilds the moment it does.

AI Agents

Agent knowledge freshness

Let your agents observe sources autonomously. The signed receipt tells the agent whether re-fetching is worth the tokens.

Monitoring

Content monitoring

Watch pricing pages, release notes, regulations, competitor sites. Get alerted when something actually changes.

Stop guessing. Start observing.

5 free checks per day. No credit card. Make your first API call in under a minute.

Get Your Free API Key