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Materiality Watch — Criteria-Filtered Change Monitor

Under maintenance

Try for free

Monitor multiple URLs on a schedule. Define what matters in plain English and Claude AI filters every diff against YOUR criteria. Portfolio mode, consolidated digests, per-URL timeline, webhook support.

Pricing

from $0.01 / 1,000 results

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0.0

(0)

Developer

Shawn Madadha

Actor stats

Bookmarked

Total users

Monthly active users

17 days ago

Last modified

Categories

Automation

Developer tools

URLs to watch

urls

Required

The list of webpages to monitor in this run. Each URL is tracked independently with its own snapshot history.

Type:string[]

Materiality criteria

criteria

Optional

Plain-English description of what kinds of changes you actually want to be alerted about. Claude filters every detected diff against this. Be specific — vague criteria let trivia through. Examples: 'pricing or plan name changes only'; 'API deprecations, schema changes, or new endpoints'; 'leadership names on the about page'; 'regulatory language changes in the Terms of Service'.

Type:string

Anthropic API key

anthropic_api_key

Optional

Required for criteria-based filtering and digest generation. Without it, every diff is reported with default significance (no filtering, no digest).

Type:string

Webhook URL (optional)

webhook_url

Optional

If provided, a single consolidated payload (with digest + all material changes for this run) is POSTed here whenever any material change is detected.

Type:string

Emit consolidated digest

emit_digest

Optional

If true, generate one synthesized digest across all material changes per run and push it as a separate dataset record.

Type:boolean

Default:true

Classifier model (advanced)

classify_model

Optional

Anthropic model used to filter diffs against criteria. Haiku is fast/cheap and works well for this. Override only if you have a reason.

Type:string

Default:claude-haiku-4-5-20251001

Digest model (advanced)

digest_model

Optional

Anthropic model used to write the consolidated digest. Haiku is the default. Use a Sonnet model if you want richer prose.

Type:string

Default:claude-haiku-4-5-20251001

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