Enum McpClientTransport 

pub enum McpClientTransport {
    StreamableHttp {
        url: String,
        headers: Option<HashMap<String, String>>,
    },
    Sse {
        url: String,
        headers: Option<HashMap<String, String>>,
    },
}

Client-side transport configuration for connecting to an MCP server.

Mirrors the variants the rmcp crate supports. headers is always optional — most public servers don’t need extra headers, and OAuth bearers are injected by the connection resolver at pool-connect time rather than being stored here.

The Stdio variant is intentionally absent: connections are workspace resources that must be portable across hosts, so spawning a local child process is not user-configurable. In-process A2A servers use the separate TransportType enum on McpServerMetadata.

Variants

StreamableHttp

Streamable HTTP transport (MCP 2025-03-26+ spec). One bidirectional endpoint that may upgrade individual responses to SSE.

Fields

url: String

headers: Option<HashMap<String, String>>

Sse

Legacy SSE-only transport (MCP 2024-11-05 spec). Kept for servers that haven’t migrated yet; prefer Streamable HTTP for new connections.

Fields

url: String

headers: Option<HashMap<String, String>>

Implementations

impl McpClientTransport

pub fn url(&self) -> &str

pub fn headers(&self) -> Option<&HashMap<String, String>>

pub fn validate(&self) -> Result<(), String>

Trait Implementations

impl Clone for McpClientTransport

fn clone(&self) -> McpClientTransport

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ComposeSchema for McpClientTransport

fn compose(generics: Vec<RefOr<Schema>>) -> RefOr<Schema>

impl Debug for McpClientTransport

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for McpClientTransport

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for McpClientTransport

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for McpClientTransport

fn eq(&self, other: &McpClientTransport) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for McpClientTransport

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for McpClientTransport

impl ToSchema for McpClientTransport

fn name() -> Cow<'static, str>

Return name of the schema.

fn schemas(schemas: &mut Vec<(String, RefOr<Schema>)>)

Implement reference utoipa::openapi::schema::Schemas for this type.