Class ElicitationCapability

Namespace

ModelContextProtocol.Protocol

Assembly

ModelContextProtocol.Core.dll

Represents the capability for a client to provide server-requested additional information during interactions.

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

Inheritance

object

ElicitationCapability

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

This capability enables the MCP client to respond to elicitation requests from an MCP server. Clients must support at least one elicitation mode: form (in-band) or url (out-of-band via URL).

When this capability is enabled, an MCP server can request the client to provide additional information during interactions. The client must set a ElicitationHandler to process these requests.

Two modes of elicitation are supported:

• form: In-band elicitation where data is collected via a form and exposed to the client
• url: URL mode (out-of-band) elicitation via navigation where sensitive data is not exposed to the client

Properties

Form

Gets or sets the form mode elicitation (in-band) capability, indicating support for in-band elicitation.

[JsonPropertyName("form")]
public FormElicitationCapability? Form { get; set; }

Property Value

FormElicitationCapability

Remarks

When present, indicates the client supports form mode elicitation where structured data is collected through a form interface and returned to the server.

Url

Gets or sets the URL mode (out-of-band) elicitation capability.

[JsonPropertyName("url")]
public UrlElicitationCapability? Url { get; set; }

Property Value

UrlElicitationCapability

Remarks

When present, indicates the client supports URL mode elicitation for secure out-of-band interactions such as OAuth flows, payments, or collecting sensitive credentials.