> ## Documentation Index > Fetch the complete documentation index at: https://docs.tai42.ai/llms.txt > Use this file to discover all available pages before exploring further. # Set the client credentials of a connector provider > Store the client credentials of an app registered by hand for the discovered provider ``provider_id``. The credentials are stored for one sign-in service the provider's server lists: ``issuer`` when given (400 when the server does not list it), else the one the provider's manual client is already stored for while the server still lists it; with neither, a 400 ``connector-client-issuer-required`` naming the listed ones — the secret is never sent to a sign-in service nobody chose. Only a discovered provider that names no env client takes stored credentials. ## OpenAPI ````yaml /openapi.json put /api/connectors/providers/{provider_id}/client openapi: 3.1.0 info: description: >- The operator HTTP surface served under /api/*. The platform's core routes. Plugin routes are published by each plugin. title: tai42-skeleton API version: 23.0.0 servers: [] security: [] paths: /api/connectors/providers/{provider_id}/client: put: tags: - connectors summary: Set the client credentials of a connector provider description: >- Store the client credentials of an app registered by hand for the discovered provider ``provider_id``. The credentials are stored for one sign-in service the provider's server lists: ``issuer`` when given (400 when the server does not list it), else the one the provider's manual client is already stored for while the server still lists it; with neither, a 400 ``connector-client-issuer-required`` naming the listed ones — the secret is never sent to a sign-in service nobody chose. Only a discovered provider that names no env client takes stored credentials. operationId: put_api_connectors_providers_provider_id_client parameters: - in: path name: provider_id required: true schema: type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/SetConnectorClientRequest' required: true responses: '200': content: application/json: schema: properties: data: $ref: '#/components/schemas/ProviderMutationResponse' required: - data type: object description: Success. '400': content: application/json: schema: $ref: '#/components/schemas/Error' description: Malformed request. '401': content: application/json: schema: $ref: '#/components/schemas/Error' description: Missing or invalid api key. '404': content: application/json: schema: $ref: '#/components/schemas/Error' description: Resource not found. '501': content: application/json: schema: $ref: '#/components/schemas/Error' description: Error. security: - ApiKeyAuth: [] components: schemas: SetConnectorClientRequest: description: >- Store the client credentials of an app registered by hand for a discovered provider. properties: client_id: minLength: 1 title: Client Id type: string client_secret: anyOf: - format: password type: string writeOnly: true - type: 'null' default: null title: Client Secret issuer: anyOf: - type: string - type: 'null' default: null title: Issuer token_endpoint_auth_method: anyOf: - enum: - client_secret_post - client_secret_basic - none type: string - type: 'null' default: null title: Token Endpoint Auth Method required: - client_id title: SetConnectorClientRequest type: object ProviderMutationResponse: description: >- The provider's catalog entry after a change, and the fleet report of the manifest write it made. properties: fanout: anyOf: - additionalProperties: true type: object - type: 'null' default: null title: Fanout provider: $ref: '#/components/schemas/ProviderCatalogEntry' required: - provider title: ProviderMutationResponse type: object Error: properties: code: description: >- Stable machine-readable reason a client keys a dedicated error state on, present on refusals that opt in (e.g. a 501 not-configured refusal). Optional: absent when the error carries only a human-readable message. type: string error: type: string required: - error type: object ProviderCatalogEntry: description: Wire view of one provider offered in the connector catalog. properties: category: title: Category type: string client_source: anyOf: - enum: - env - manual - dynamic - unset type: string - type: 'null' default: null title: Client Source config_fields: items: $ref: '#/components/schemas/ConfigFieldSpec' title: Config Fields type: array description: default: '' title: Description type: string display_name: title: Display Name type: string icon_url: anyOf: - type: string - type: 'null' default: null title: Icon Url id: title: Id type: string kind: enum: - oauth - none title: Kind type: string origin: enum: - system - community title: Origin type: string removable: default: false title: Removable type: boolean sub_services: items: $ref: '#/components/schemas/SubServiceView' title: Sub Services type: array required: - id - display_name - kind - origin - category - sub_services title: ProviderCatalogEntry type: object ConfigFieldSpec: description: >- One client-supplied static config value for a no-auth provider. ``target`` picks the injection channel and MUST match the server transport (``env`` for stdio, ``header`` for http/websocket). ``secret`` flags a value masked in the UI and never logged; ``required`` gates connect-time validation. properties: key: title: Key type: string label: minLength: 1 title: Label type: string required: default: true title: Required type: boolean secret: default: false title: Secret type: boolean target: enum: - env - header title: Target type: string required: - key - label - target title: ConfigFieldSpec type: object SubServiceView: description: Wire view of one sub-service offered by a provider in the catalog. properties: description: default: '' title: Description type: string display_name: title: Display Name type: string id: title: Id type: string scopes: items: type: string title: Scopes type: array required: - id - display_name title: SubServiceView type: object securitySchemes: ApiKeyAuth: in: header name: x-api-key type: apiKey ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.