# Pro-Code API Composition

> An index of pro-code API composition service and tooling repos being tracked by the API Evangelist network, covering workflow engines, code-first platforms, serverless orchestration, API composition patterns, and BFF frameworks.

This is the **Pro-Code API Composition** topic area of [API Evangelist](https://apievangelist.com) — a network of focused knowledge bases drawn from 16 years of independent API research by Kin Lane. Browse all areas at https://apievangelist.com/areas/.

## Services & Tools
- [Apollo Federation](https://providers.apis.io/providers/apollo-federation/) (repo: https://github.com/api-evangelist/apollo-federation)
- [Argo Workflows](https://providers.apis.io/providers/argo-workflows/) (repo: https://github.com/api-evangelist/argo-workflows)
- [AWS Step Functions](https://providers.apis.io/providers/step-functions/) (repo: https://github.com/api-evangelist/step-functions)
- [Azure Durable Functions](https://providers.apis.io/providers/durable-functions/) (repo: https://github.com/api-evangelist/durable-functions)
- [Ballerina](https://providers.apis.io/providers/ballerina/) (repo: https://github.com/api-evangelist/ballerina)
- [Cadence](https://providers.apis.io/providers/cadence/) (repo: https://github.com/api-evangelist/cadence)
- [Camunda](https://providers.apis.io/providers/camunda/) (repo: https://github.com/api-evangelist/camunda)
- [Dagster](https://providers.apis.io/providers/dagster/) (repo: https://github.com/api-evangelist/dagster)
- [Dapr](https://providers.apis.io/providers/dapr/) (repo: https://github.com/api-evangelist/dapr)
- [DBOS](https://providers.apis.io/providers/dbos/) (repo: https://github.com/api-evangelist/dbos)
- [Express Gateway](https://providers.apis.io/providers/express-gateway/) (repo: https://github.com/api-evangelist/express-gateway)
- [Fastify](https://providers.apis.io/providers/fastify/) (repo: https://github.com/api-evangelist/fastify)
- [Google Cloud Workflows](https://providers.apis.io/providers/google-cloud-workflows/) (repo: https://github.com/api-evangelist/google-cloud-workflows)
- [GraphQL Mesh](https://providers.apis.io/providers/graphql-mesh/) (repo: https://github.com/api-evangelist/graphql-mesh)
- [Hasura](https://providers.apis.io/providers/hasura/) (repo: https://github.com/api-evangelist/hasura)
- [Hatchet](https://providers.apis.io/providers/hatchet/) (repo: https://github.com/api-evangelist/hatchet)
- [Inngest](https://providers.apis.io/providers/inngest/) (repo: https://github.com/api-evangelist/inngest)
- [Kestra](https://providers.apis.io/providers/kestra/) (repo: https://github.com/api-evangelist/kestra)
- [LittleHorse](https://providers.apis.io/providers/littlehorse/) (repo: https://github.com/api-evangelist/littlehorse)
- [NestJS](https://providers.apis.io/providers/nestjs/) (repo: https://github.com/api-evangelist/nestjs)
- [Netflix Conductor](https://providers.apis.io/providers/netflix-conductor/) (repo: https://github.com/api-evangelist/netflix-conductor)
- [Orkes](https://providers.apis.io/providers/orkes/) (repo: https://github.com/api-evangelist/orkes)
- [Prefect](https://providers.apis.io/providers/prefect/) (repo: https://github.com/api-evangelist/prefect)
- [Restate](https://providers.apis.io/providers/restate/) (repo: https://github.com/api-evangelist/restate)
- [Schema Stitching](https://providers.apis.io/providers/schema-stitching/) (repo: https://github.com/api-evangelist/schema-stitching)
- [Serverless Workflow](https://providers.apis.io/providers/serverless-workflow/) (repo: https://github.com/api-evangelist/serverless-workflow)
- [StepZen](https://providers.apis.io/providers/stepzen/) (repo: https://github.com/api-evangelist/stepzen)
- [Temporal](https://providers.apis.io/providers/temporal/) (repo: https://github.com/api-evangelist/temporal)
- [tRPC](https://providers.apis.io/providers/trpc/) (repo: https://github.com/api-evangelist/trpc)
- [Windmill](https://providers.apis.io/providers/windmill/) (repo: https://github.com/api-evangelist/windmill)
- [WunderGraph](https://providers.apis.io/providers/wundergraph/) (repo: https://github.com/api-evangelist/wundergraph)
- [Zeebe](https://providers.apis.io/providers/zeebe/) (repo: https://github.com/api-evangelist/zeebe)

## Related Areas
- [iPaaS](https://ipaas.apievangelist.com): This is the index of iPaaS (integration platform as a service) repos being tracked by the API Evangelist network.
- [SDKs](https://sdk.apievangelist.com): A curated index of services, tooling, and open source solutions for generating API SDKs, client libraries, and code f...
- [Orchestration](https://orchestration.apievangelist.com): An index and topic collection covering container orchestration and workflow orchestration platforms. Container orches...
- [Containers](https://containers.apievangelist.com): An index of container runtime, orchestration, registry, security, and build tool repositories tracking the services a...
- [IDE](https://ide.apievangelist.com): An index and topic collection covering integrated development environments (IDEs), code editors, and cloud workspaces...
- [Agents](https://agents.apievangelist.com): An index and topic collection covering AI agents, agent frameworks, and agent runtimes that enable autonomous reasoni...

## More
- [Latest Pro-Code API Composition stories](/stories/)
- [All API Evangelist topic areas](https://apievangelist.com/areas/)
- [API Evangelist network index (llms.txt)](https://apievangelist.com/llms.txt)