Sub-processors page

Fly.io Sub-processors

Last updated: 2026-09-24

Fly.io uses the following sub-processors to assist in providing our services.

Wrap text
Sub–processor
Location
Activity

Anthropic
United States
AI-assisted log analysis, support responses, and signup classification

AWS
United States
Account management, backup storage, engineering support

CacheNetworks
United States
Hosting provider

Customer.io
United States
Newsletters and transactional email

DataPacket
United Kingdom
Hosting provider

Depot
United States
Customer software builds

Discord
United States
Customer support communication

Discourse
United States
Customer support communication

Dropbox Sign
United States
Agreement signing (DPA, BAA, NDA)

Google
United States
Productivity suite and cloud infrastructure

Help Scout
United States
Customer support communication

Honeycomb
United States
Tracing and observability

HubSpot
United States
Customer relationship management

incident.io
United Kingdom
Incident response and on-call management

IPinfo
United States
Signup IP geolocation and risk scoring

Latitude
United States
Hosting provider

LaunchDarkly
United States
Feature rollout management

Mailgun
United States
Transactional email

Metronome
United States
Billing

NetActuate
United States
Hosting provider

OpenAI
United States
Incident summary generation

PeopleDataLabs
United States
Signup risk scoring

Plain
United Kingdom
Customer support communication

PostHog
Germany
Product analytics

RudderStack
United States
Product analytics

Sentry
United States
Error reporting

Slab
United States
Knowledge management

Slack
United States
Customer support communication

Snowflake
United States
Customer relationship management

Stripe
United States
Payment processing, fraud and abuse prevention

Tigris
United States
Object storage for Sprites

Timescale
United States
Time-series metrics storage

Vultr
United States
Hosting provider

## AI vendors

Anthropic and OpenAI are used only by Fly.io’s internal tooling, under our AI usage policy. We never send the contents of your volumes, or the bodies of requests to your applications, to an AI vendor.

During support and abuse investigations, the data that can be processed is account and organization metadata, support ticket text, and platform log lines, which include whatever your application writes to stdout. For Managed Postgres, our support tooling can also process a cluster’s Postgres logs and, when a Fly.io operator runs a read-only diagnostic query during an investigation, the results of that query.

## Changes

Additions to and removals from this list are recorded here.

- 2026-09-24: Added Dropbox Sign, incident.io, and Vultr.

- 2026-05-18: Removed Equinix and OVH.