Enum McpProtocolVersion 

pub enum McpProtocolVersion {
    V2024_11_05,
    V2025_03_26,
    V2025_06_18,
}

MCP Protocol versions

Variants

V2024_11_05

Original protocol without streamable HTTP (2024-11-05)

V2025_03_26

Protocol including streamable HTTP (2025-03-26)

V2025_06_18

Protocol with structured _meta, cursor, progressToken, and elicitation (2025-06-18)

Implementations

impl McpProtocolVersion

pub fn from_str(s: &str) -> Option<Self>

Parse from header string

pub fn as_str(&self) -> &'static str

Convert to string representation

pub fn supports_streamable_http(&self) -> bool

Returns whether this version supports streamable HTTP

pub fn supports_meta_fields(&self) -> bool

Returns whether this version supports _meta fields

pub fn supports_cursors(&self) -> bool

Returns whether this version supports cursor-based pagination

pub fn supports_progress_tokens(&self) -> bool

Returns whether this version supports progress tokens

pub fn supports_elicitation(&self) -> bool

Returns whether this version supports elicitation

pub fn supported_features(&self) -> Vec<&'static str>

Get list of supported features for this version

Trait Implementations

impl Clone for McpProtocolVersion

fn clone(&self) -> McpProtocolVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for McpProtocolVersion

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

Formats the value using the given formatter.

impl Default for McpProtocolVersion

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for McpProtocolVersion

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for McpProtocolVersion

impl Eq for McpProtocolVersion

impl StructuralPartialEq for McpProtocolVersion