Class InputResponse

Namespace

ModelContextProtocol.Protocol

Assembly

ModelContextProtocol.Core.dll

Represents a client's response to a server-initiated InputRequest as part of an MRTR (Multi Round-Trip Request) flow.

[JsonConverter(typeof(InputResponse.Converter))]
public sealed class InputResponse

Inheritance

object

InputResponse

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

An InputResponse wraps the result of a server-to-client request such as CreateMessageResult, ElicitResult, or ListRootsResult. The type of the inner response corresponds to the Method of the associated input request.

The input response does not carry its own type discriminator in JSON. The type is determined by the corresponding Method key in the InputRequests map.

Properties

CreateMessageResultJsonTypeInfo

Gets the JsonTypeInfo<T> for CreateMessageResult, suitable for use with Deserialize<T>(JsonTypeInfo<T>) when the corresponding Method is SamplingCreateMessage.

[Obsolete("The Sampling feature is deprecated as of specification version 2026-07-28 and may be removed in a future version. See SEP-2577 for more information.", DiagnosticId = "MCP9005", UrlFormat = "https://github.com/modelcontextprotocol/csharp-sdk/blob/main/docs/list-of-diagnostics.md#obsolete-apis")]
public static JsonTypeInfo<CreateMessageResult> CreateMessageResultJsonTypeInfo { get; }

Property Value

JsonTypeInfo<CreateMessageResult>

ElicitResultJsonTypeInfo

Gets the JsonTypeInfo<T> for ElicitResult, suitable for use with Deserialize<T>(JsonTypeInfo<T>) when the corresponding Method is ElicitationCreate.

public static JsonTypeInfo<ElicitResult> ElicitResultJsonTypeInfo { get; }

Property Value

JsonTypeInfo<ElicitResult>

ListRootsResultJsonTypeInfo

Gets the JsonTypeInfo<T> for ListRootsResult, suitable for use with Deserialize<T>(JsonTypeInfo<T>) when the corresponding Method is RootsList.

[Obsolete("The Roots feature is deprecated as of specification version 2026-07-28 and may be removed in a future version. See SEP-2577 for more information.", DiagnosticId = "MCP9005", UrlFormat = "https://github.com/modelcontextprotocol/csharp-sdk/blob/main/docs/list-of-diagnostics.md#obsolete-apis")]
public static JsonTypeInfo<ListRootsResult> ListRootsResultJsonTypeInfo { get; }

Property Value

JsonTypeInfo<ListRootsResult>

RawValue

Gets or sets the raw JSON element representing the response.

[JsonIgnore]
public JsonElement RawValue { get; set; }

Property Value

JsonElement

Remarks

Use Deserialize<T>(JsonTypeInfo<T>) with the JsonTypeInfo<T> matching the associated Method - for elicitation, sampling, or roots see ElicitResultJsonTypeInfo, CreateMessageResultJsonTypeInfo, and ListRootsResultJsonTypeInfo.

Methods

Deserialize<T>(JsonTypeInfo<T>)

Deserializes the raw value to the specified result type.

public T? Deserialize<T>(JsonTypeInfo<T> typeInfo)

Parameters

typeInfo JsonTypeInfo<T>

The JSON type information for T.

Returns

T

The deserialized result, or null if deserialization fails.

Type Parameters

T

The type to deserialize to (e.g., CreateMessageResult, ElicitResult).

FromElicitResult(ElicitResult)

Creates an InputResponse from an ElicitResult.

public static InputResponse FromElicitResult(ElicitResult result)

Parameters

result ElicitResult

The elicitation result.

Returns

InputResponse

A new InputResponse instance.

FromRootsResult(ListRootsResult)

Creates an InputResponse from a ListRootsResult.

[Obsolete("The Roots feature is deprecated as of specification version 2026-07-28 and may be removed in a future version. See SEP-2577 for more information.", DiagnosticId = "MCP9005", UrlFormat = "https://github.com/modelcontextprotocol/csharp-sdk/blob/main/docs/list-of-diagnostics.md#obsolete-apis")]
public static InputResponse FromRootsResult(ListRootsResult result)

Parameters

result ListRootsResult

The roots list result.

Returns

InputResponse

A new InputResponse instance.

FromSamplingResult(CreateMessageResult)

Creates an InputResponse from a CreateMessageResult.

[Obsolete("The Sampling feature is deprecated as of specification version 2026-07-28 and may be removed in a future version. See SEP-2577 for more information.", DiagnosticId = "MCP9005", UrlFormat = "https://github.com/modelcontextprotocol/csharp-sdk/blob/main/docs/list-of-diagnostics.md#obsolete-apis")]
public static InputResponse FromSamplingResult(CreateMessageResult result)

Parameters

result CreateMessageResult

The sampling result.

Returns

InputResponse

A new InputResponse instance.