Amazon Web Services
Amazon Comprehend PII detection
Detect PII API returns the location of each personal-data entity in text so you can redact it; billed per 100-character unit with a 3-unit (300 character) minimum per request, so short texts cost more per character. $0.0001 per 100-character unit x 10,000 units = $1.00 per 1M characters (rate taken from the page's worked example; tier table not shown in fetch).
USD per 1M characters
$1.00
#2 cheapest of 3 in PII detection & redaction
Official pricing ↗Capabilities, explained
What this API can do, and what each capability means for your project.
Data types detected
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Approximate number of kinds of personal data it can find.
Languages
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Approximate number of languages it supports.
Inputs
text
Kinds of content it can scan for personal data.
Realistic replacements
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Can replace personal data with consistent fake values instead of only masking it.
Self-hosted option
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Can run inside your own infrastructure so data never leaves it.
Price history
Only one price recorded so far. The chart appears once the price changes.