Hot Chocolate

Hot Chocolate is an open-source GraphQL Server for .NET.

Type: server

Website: https://github.com/ChilliCream/graphql-platform

Features

Feature	Supported Since	Note
MutationsJul 2015
QueriesJul 2015
SubscriptionsJun 2018
Repeatable DirectivesOct 2021
@specifiedByOct 2021
Directives on Variable DefinitionsOct 2021
Interfaces on InterfacesOct 2021
@oneOfSep 2025	13.0.0
Deprecated input valuesSep 2025
Executable documents descriptionsSep 2025	16.0.0	pr
'application/graphql-response+json' media typedraft	13.0.0	pr
Directives on directivesdraft	16.2.0
GraphQL over HTTPdraft	13.0.0	pr
'@defer'ExperimentalRFC2	16.0.0	Hot Chocolate supports `@defer` using the `incremental v0.2` protocol since 16.0.0 and using the older protocol since 13.0.0 (doc)
'@stream'ExperimentalRFC2	16.0.0	Hot Chocolate supports `@stream` using the `incremental v0.2` protocol since 16.0.0 and using the older protocol since 13.0.0 (doc)
Empty selection setsExperimentalRFC2	16.7.0	Opt-in via `EnableEmptySelectionSets` (pr)
Fragment ArgumentsExperimentalRFC2	0.8.0
'onError' request parameterExperimentalRFC1	16.0.0
Deprecated objectsExperimentalRFC1	16.6.1	Opt-in via `EnableObjectDeprecation` (pr)
Service capabilitiesExperimentalRFC1	-
@semanticNonNullExperimentalGAP	14.2.0
Field extensionsExperimentalGAP		The execution runtime merges directives and arguments onto fields redeclared in a type extension, but without the RFC's consistency validation (mismatched type, description, or defaults are not enforced).
Automatic Persisted QueriesExperimental
Covariant fields mergingExperimental	-
HTTP QUERY methodExperimental	?	Know the status of this feature? Let us know!
HTTP batchingExperimental	16.0.0	operation batching has been available since 13.0.0. Variable batching with 16.0.0 (doc)
Persisted DocumentsExperimental		The protocol for persisted documents is still TBD
Semantic IntrospectionExperimental	16.0.0