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Check a declared event stream.

Inspect supplied identifiers, hashes, sequence numbers and timestamps. Identical retries are deduplicated; conflicting declarations are flagged. No provider is contacted.

JSON object containing events (1–200 items, maximum 64 KiB)

A sequence gap in a partial sample is a warning. Set require_contiguous: true only when you supply the complete expected sequence; set same_clock: true only when timestamp comparison is valid.

This checks supplied declarations. It does not attest delivery, processing, trusted clocks or a third-party server. Nothing you paste is uploaded or stored by this page.

Automate — €0.002 per batch Check an OpenAPI contract

The prepaid API checks up to 200 supplied events per batch for €0.002 excluding tax. Choose a budget from €10 to €10,000 including applicable taxes, with no subscription or automatic renewal. Save signed results yourself. Prepaid API guide.