Enum McpClientError 

pub enum McpClientError {
    Transport(String),
    Payment(String),
    StillRequired,
    PaymentRequired(Box<PaymentRequiredError>),
}

Available on crate features client or server only.

Client orchestration errors.

Variants

Transport(String)

Underlying MCP transport / tool call failed.

Payment(String)

Building a payment payload failed.

StillRequired

Server still required payment after a signed retry.

PaymentRequired(Box<PaymentRequiredError>)

Auto-payment disabled or user denied — includes 402 data when available.

Trait Implementations

impl Debug for McpClientError

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

Formats the value using the given formatter.

impl Display for McpClientError

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

Formats the value using the given formatter.

impl Error for McpClientError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Box<PaymentRequiredError>> for McpClientError

fn from(source: Box<PaymentRequiredError>) -> Self

Converts to this type from the input type.

impl From<PaymentRequiredError> for McpClientError

fn from(value: PaymentRequiredError) -> Self

Converts to this type from the input type.