Projects using FastStream#

Below are projects and organizations with public evidence involving FastStream: repository and package dependencies, employer job postings, and individual team members' reports. Each section identifies the evidence and its scope. Tools with a FastStream integration are listed separately.

Science and Public Sector#

Companies#

Organizations Naming FastStream in Job Postings#

These employer postings and their mirrors name FastStream in the team's stack, development responsibilities, requirements or desirable skills. The distinction is recorded in each row: requirements and alternative tools show demand for skills, but do not establish adoption. Some roles involve client projects; unidentified clients are not counted as adopters.

All posting links below are archived snapshots from 2026-10-06. These include closed and historical postings, which describe the stated technologies at the time rather than current hiring or confirmed production deployments. Locations refer to the vacancy's market or work location.

Additional postings and organization-confirmed deployments are listed in ADOPTERS.md.

Usage Reported by Individual Team Members#

These authors describe their work on specific products. Their accounts are attributed to them, not presented as organization confirmations. They do not establish current organization-wide or production use; the Magalu Cloud account refers to the employment period shown below.

Tools Shipping a FastStream Integration#

These are not users but neighbouring projects that took on maintaining an integration of their own.

Community Extensions#

Packages built on top of FastStream by the community:

• stompman - STOMP client with a pleasant API
• faststream-mq - standalone IBM MQ adapter
• zMQTT - pure asyncio MQTT 3.1.1 and 5.0 client library, no paho dependency
• faststream-schema-registry - connects FastStream to the Confluent Schema Registry
• opentelemetry-instrumentation-faststream - FastStream instrumentation for OpenTelemetry
• faststream-prometheus - metrics collection for Prometheus
• faststream-compressors - message compression middleware
• faststream-deadline-propagation - deadline propagation for RPC requests
• faststream-outbox - transactional outbox backed by a Postgres table
• faststream-redis-timers - Redis-backed distributed timer scheduling
• faststream-concurrent-aiokafka - concurrent message processing for aiokafka
• modern-di-faststream - modern-di integration
• litestar-faststream - Litestar integration for FastStream message brokers
• fast-healthchecks - framework-agnostic health checks
• awesome-faststream - curated list of libraries, tools, templates and resources
• faststream-celery - connects FastStream to the Celery (kombu) broker.

Add Your Project#

Using FastStream in production? There are two lists, and they serve different purposes.

ADOPTERS.md — organization confirmations maintained by adopters themselves. Add your organization along with the brokers you run, your use case and your scale. That last part is what other teams are really looking for, and only you can supply it. The quickest route is editing the file in the browser — GitHub opens the pull request for you. If you would rather not open one, comment on issue #3143 and we will add the row for you.

This page — compiled by us from public repositories, package metadata, job postings and attributed team-member reports. Include a public source and distinguish a dependency, a stated team stack, a skill requirement or a personal account. If we have missed a project, open a pull request against docs/docs/en/who-uses.md, or comment on issue #3143.

If you are listed on either and would prefer not to be, open an issue — no explanation needed and no questions asked.