Amazon AppSync vs Hot Chocolate
Amazon AppSync
aws.amazon.com
Hot Chocolate
chillicream.comSide by side
| Figure | Amazon AppSync | Hot Chocolate |
|---|---|---|
| Price from | $1/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 1 |
| Spec score · GraphQL Tools | 7.8 (#10) | 8.1 (#6) |
| Federation | AppSync Merged GraphQL APIs combine schemas, data sources, and resolvers from multiple source APIs into one endpoint. | A Hot Chocolate server can act as a Fusion subgraph, allowing services to be composed behind a gateway as teams need independent ownership and deployment. |
| Intended users | AWS describes AppSync as suitable for connecting application developers to data and building experiences such as AI gateways, federated APIs, and real-time applications. | The documentation describes trusted documents as suited to private APIs serving known clients, including an organization's own web or mobile applications. |
| Observability | AppSync can integrate with Amazon CloudWatch and AWS X-Ray for logging, metrics, and tracing. | The built-in OpenTelemetry integration emits GraphQL request, resolver, and DataLoader spans. |
| Purpose | AWS AppSync connects applications to events, data, and AI models through GraphQL and pub/sub APIs. | Hot Chocolate is an open-source GraphQL server for .NET that runs on ASP.NET Core. |
| Support | AWS offers support tailored to needs ranging from startups to enterprise level through its contact-an-expert option. | ChilliCream lists community support as free and paid support plans starting at $450 per month for Startup, with two critical incidents included. |
Plans
In their own words
Amazon AppSync
Amazon AppSync has no write-up on Specifiction yet; its figures are above.
Hot Chocolate
Hot Chocolate is an open-source GraphQL server for.NET that runs on ASP.NET Core and builds a GraphQL schema from C# types and resolvers. Developers can define typed schemas through implementation-first or code-first methods. It supports GraphQL over HTTP and WebSocket, plus Server-Sent Events for streaming responses. Documentation describes schema downloads, a Nitro GraphQL IDE endpoint, and a command-line interface for schema export. Data integrations include Entity Framework, MongoDB, and Marten; DataLoaders and batch resolvers help batch and cache related requests. OpenTelemetry instrumentation covers server, execution, and DataLoader activity. Security guidance recommends query cost analysis, pagination and execution-depth limits, and timeouts for public APIs; trusted documents can restrict private APIs to registered operations. Servers can act as Fusion subgraphs. Hot Chocolate implements the GraphQL 2025 specification and GraphQL over HTTP, and supports spec-compliant clients including Strawberry Shake, Relay, and Apollo Client. It is MIT licensed for commercial or private use. Community support is free; paid Startup support starts at $450 per month and includes two critical incidents.