Product / UX / Safety & Guardrails

Perspective API

Jigsaw's (Google) free hosted API for scoring the toxicity of text (and related attributes like insult, threat, and identity attack), widely used by platforms and researchers for comment moderation since 2017. Closed, API-only; no weights or self-hosting.

Perspective API by Jigsaw (Google); free hosted toxicity-scoring API, proprietary (no weights, no self-host). Long-standing comment-moderation API. Verified June 2026.

Openness

1 high confidence

1.0

service: proprietary hosted API by Jigsaw/Google(no weights, no self-host)
access: free with quota
scores: toxicity + related attributes
source: closed
license: proprietary

Closed, API-only hosted classifier; no weights or source. Long-standing and influential, but proprietary.

https://perspectiveapi.com/ recorded 2026-06-29
Jigsaw (Google) free hosted toxicity-scoring API; no weights or self-host

Adoption

4 medium confidence

4.0

One of the most widely-adopted moderation APIs since 2017, used across major platforms and research; free with quota.

https://perspectiveapi.com/ recorded 2026-06-29
widely-used free hosted moderation API since 2017

Capability

3 low confidence

3.0

Mature toxicity scoring with broad real-world use; narrower than full safety taxonomies and policy-conditioned models.

https://perspectiveapi.com/ recorded 2026-06-29
toxicity + insult/threat/identity-attack scoring, multilingual

Unchanged since 2026-08-01 (last edited, not re-checked)