Oso

osohq.com

Oso declares 6 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Anthropic and Sentry. No published changes since we first read it on Nov 8, 2026. 2 tracked vendors name Oso as a subprocessor, including Optro and Spellbook.

Subprocessors CSV of Oso's subprocessors · Atom feed of Oso's subprocessors DORA draft CSV of Oso's subprocessors as declared by Oso what's this? · 

6 third parties.

NamePurposeLocationListed since
Amazon Web Services Primary hosting provider.Cloud provider
Anthropic AILLM providerData processing
Common Room User analyticsMarketing
Honeycomb Cloud monitoring; Record telemetry data from servicesUSA
Sentry Cloud monitoring; Error loggingUSA
Svix Webhooks providerData storage and processing

Subprocessor of (2)CSV of the companies listing Oso · Atom feed of the companies listing Oso

2 companies
  • Optro optro.ai Platform Authentication Service
  • Spellbook spellbook.com Authorization; Provides service for fine grained access (FGA) controls within the Spellbook application.

ComplianceCSV of Oso's compliance · Atom feed of Oso's compliance

Certified

Certifications as Oso's trust center lists them; reports are usually shared on request (evidence)

Incidents reported by Oso's subprocessorsCSV of incidents reported by vendors Oso lists · Atom feed of incidents reported by vendors Oso lists

29 reported incidents in the last 30 days, by 4 of the vendors Oso lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that Oso was involved.

DateCompanyIncidentImpactLasted
SentryUS issues feed throwing intermittent errors minor51 min
SentryAccount emails not being delivered major42 min
AnthropicElevated errors on Fable 52 and Mythos 52 no impact stated1 min
SentryEU region replay ingestion latency minor48 min
AnthropicDegraded performance for Claude Fable 5.1 minor26 min
SentryIngestion delays across all data minor1 h 10 min
SentryDelays in spans and transactions processing major1 h 45 min
SentrySentry.io dashboard and API is down critical1 h 32 min
SentrySentry dashboard is down critical4 h 21 min
AnthropicElevated errors affecting the Google Calendar connector minor3 h 46 min
AnthropicElevated errors affecting the Gmail connector minor1 h 48 min
AnthropicElevated errors for Claude Sonnet 5.5 major41 min
AnthropicElevated errors for Claude Sonnet 5.5 major42 min
AnthropicElevated errors for Claude Fable 5.1 major32 min
AnthropicElevated errors for Claude Sonnet 5.5 and other models major1 h 39 min
AnthropicElevated errors for Claude Fable 5 and Claude Fable 5.1 major36 min
AnthropicElevated errors for Claude Opus 5.5 major5 min
AnthropicElevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 critical33 min
HoneycombEmail notifications for SLOs, Triggers, and Anomaly Detection not sending major1 h
AnthropicElevated errors affecting Connectors minor4 h 16 min
AnthropicDegraded performance for Claude Fable 5 minor40 min
SentryIncreased latency processing integration webhooks minor20 min
SentrySentry.io not loading in US region critical59 min
SentrySentry.io not loading major3 h 17 min
HoneycombSlowness in US region major2 h 21 min

And 4 more. All of them: CSV · Who is around them.

ChangesCSV of Oso's changes · Atom feed of Oso's changes

See the list as we read it on any date: Time machine

None since tracking began.

Rating badge for Oso's site

Oso transparency rating

It updates with the rating.

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