Struct StreamableHttpClientConfig 

pub struct StreamableHttpClientConfig {
    pub base_url: String,
    pub endpoint_path: String,
    pub timeout: Duration,
    pub retry_policy: RetryPolicy,
    pub auth_token: Option<String>,
    pub headers: HashMap<String, String>,
    pub user_agent: Option<String>,
    pub protocol_version: String,
    pub limits: LimitsConfig,
    pub tls: TlsConfig,
    pub sse_read_timeout: Duration,
}

Streamable HTTP client configuration

Fields

base_url: String

Base URL (e.g., https://api.example.com)

endpoint_path: String

MCP endpoint path (e.g., “/mcp”)

timeout: Duration

Request timeout

retry_policy: RetryPolicy

Auto-reconnect policy

auth_token: Option<String>

Authentication token

headers: HashMap<String, String>

Custom headers

user_agent: Option<String>

User agent string (set to None to disable User-Agent header)

Default: TurboMCP-Client/{version}

Security Note

The User-Agent header can expose client version information. Consider:

• Setting to None to disable User-Agent header entirely
• Using a generic string like “MCP-Client” to minimize fingerprinting
• Keeping the default to aid server-side debugging and analytics

protocol_version: String

Protocol version to use

limits: LimitsConfig

Size limits for requests and responses (v2.2.0+)

tls: TlsConfig

TLS/HTTPS configuration (v2.2.0+)

sse_read_timeout: Duration

Idle timeout between SSE chunks.

Guards against a silent TCP half-open where the server stops writing without closing the connection. If no chunk arrives within this window, the SSE task breaks and the reconnect loop takes over. Set generously — the SSE protocol tolerates long idle periods between events. Default: 5 minutes.

Trait Implementations

impl Clone for StreamableHttpClientConfig

fn clone(&self) -> StreamableHttpClientConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamableHttpClientConfig

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

Formats the value using the given formatter.

impl Default for StreamableHttpClientConfig

fn default() -> Self

Returns the “default value” for a type.