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Stefan Walcz
beaeb05e52
Remote MCP servers could only be authenticated with a static bearer
token. Deployments that put their MCP servers behind an OIDC provider
(authentik, Keycloak, Entra ID, ...) issue short-lived service tokens
instead, so LocalAI had to be given a long-lived key or could not
connect at all.
A remote server entry now accepts an optional "oauth2" block
(token_url, client_id/client_id_env, client_secret/client_secret_env,
scopes, endpoint_params). The token is fetched with the
client_credentials grant by an http.RoundTripper installed on the MCP
client's HTTP client, so streamable HTTP and SSE transports both use it.
The token is cached and refreshed at half of its lifetime; if a refresh
fails the current token is kept until 30s before expiry, after which
requests fail with an error instead of going out unauthenticated.
"token" and "oauth2" are mutually exclusive and inconsistent blocks are
rejected when the model config is loaded. Static tokens behave as
before. MCPRemoteServer now implements fmt.Stringer so the existing
debug logs that print whole server entries no longer write the token
or client secret in clear text.
Signed-off-by: Stefan Walcz <stefan.walcz@walcz.de>
Assisted-by: Claude Code:claude-opus-5-5
(cherry picked from commit 954b9d25f7)