fastmcp.server.auth.providers.in_memory

Classes

InMemoryOAuthProvider ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L31" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

An in-memory OAuth provider for testing purposes. It simulates the OAuth 2.1 flow locally without external calls.

Methods:

get_client ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L67" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

get_client(self, client_id: str) -> OAuthClientInformationFull | None

register_client ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L70" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

register_client(self, client_info: OAuthClientInformationFull) -> None

authorize ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L94" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

authorize(self, client: OAuthClientInformationFull, params: AuthorizationParams) -> str

Simulates user authorization and generates an authorization code. Returns a redirect URI with the code and state.

load_authorization_code ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L151" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

load_authorization_code(self, client: OAuthClientInformationFull, authorization_code: str) -> AuthorizationCode | None

exchange_authorization_code ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L164" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

exchange_authorization_code(self, client: OAuthClientInformationFull, authorization_code: AuthorizationCode) -> OAuthToken

load_refresh_token ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L217" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

load_refresh_token(self, client: OAuthClientInformationFull, refresh_token: str) -> RefreshToken | None

exchange_refresh_token ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L232" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

exchange_refresh_token(self, client: OAuthClientInformationFull, refresh_token: RefreshToken, scopes: list[str]) -> OAuthToken

load_access_token ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L289" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

load_access_token(self, token: str) -> AccessToken | None

verify_token ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L300" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

verify_token(self, token: str) -> AccessToken | None

Verify a bearer token and return access info if valid.

This method implements the TokenVerifier protocol by delegating to our existing load_access_token method.

Args:

• token: The token string to validate

Returns:

• AccessToken object if valid, None if invalid or expired

revoke_token ^{<a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/auth/providers/in_memory.py#L357" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a>}

revoke_token(self, token: AccessToken | RefreshToken) -> None

Revokes an access or refresh token and its counterpart.