Fly.io

Code & Developer Tools37 vendorsUpdated Nov 10, 202621 added, 4 removed fly.io Subprocessor list

Fly.io uses 37 subprocessors and infrastructure vendors, including AWS, Google Cloud and OpenAI, based on its public subprocessor list. Last checked Nov 10, 2026.

AI Stack · 3

Infrastructure · 34

AI Stack

Model Serving

AI model routing for internal tooling

Foundation Models

AI-assisted log analysis, support responses, and signup classification

incident summary generation

View their stack →

Infrastructure

Cloud & Networking

account management, backup storage, engineering support

hosting provider

hosting provider

productivity suite and cloud infrastructure

hosting provider

hosting provider

hosting provider

object storage for Sprites

hosting provider

hosting provider

Databases

audit log storage for control plane API requests

customer relationship management

time-series metrics storage

Observability

tracing and observability

incident response and on-call management

error reporting

Billing & Payments

billing

payment processing, fraud and abuse prevention

Analytics & BI

signup IP geolocation and risk scoring

People Data Labs

signup risk scoring

product analytics

product analytics

CRM & Support

customer support communication

agreement signing (DPA, BAA, NDA)

customer support communication

customer relationship management

customer support communication

Communications

newsletters and transactional email

customer support communication

transactional email

customer support communication

Developer Platform

feature rollout management

CI/CD

customer software builds

Productivity & Collaboration

knowledge management

Model labs reached through vendors 2

Fly.io does not list these model providers. Vendors on its list name them on their own subprocessor lists.

Google (Gemini)throughCustomer.io,TigerData
SpaceXAIthroughPlain

Changes

Mar 5, 2026 to Nov 10, 2026Source

Earlier lists

Mar 5, 202620 vendors

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