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CallShield

Community Reports API

This endpoint receives anonymous spam number reports from the CallShield Android app.

When users block a spam call or tap "Contribute to Community Database", the number is submitted here and merged into the open-source spam database on GitHub.

How it works:
POST with {"number":"+442079460018","type":"spam"}

SMS spam reports may include redacted sms_domains and sms_url_indicators; raw SMS bodies are ignored.

View on GitHub · Download APK

No accounts are used. SMS message text is not stored.