generated: '2026-08-13' method: probed source: https://app.nutshell.com/.well-known/oauth-authorization-server docs: https://support.nutshell.com/en/articles/12631143-mcp-server summary: count: 2 applies_to: MCP server OAuth only note: 'These scopes are read from the provider''s own RFC 8414 metadata, not from the OpenAPI — the REST spec declares only HTTP Basic and has no oauth2 securityScheme, so derive-oauth-scopes.py correctly found nothing. The two scopes govern the OAuth authorization used by the Nutshell MCP server. Note the mismatch worth flagging: the authorization server advertises a write scope, while Nutshell''s help article states the MCP server "can only read your data and cannot make any changes". Nutshell does not publish a per-permission scope reference page; API-key permissions are chosen from an undocumented permission-type list in Setup > API keys.' scopes: - name: read description: Read access to Nutshell CRM data granted to an OAuth client (the MCP server and any registered connector). source: well-known/nutshell-oauth-authorization-server.json - name: write description: Write access advertised by the authorization server. Advertised in metadata and in the MCP 401 challenge (scope="read write"); not exercised by the documented MCP tool set. source: well-known/nutshell-oauth-authorization-server.json authorization_server: issuer: https://app.nutshell.com authorization_endpoint: https://app.nutshell.com/oauth/authorize token_endpoint: https://app.nutshell.com/oauth/token registration_endpoint: https://app.nutshell.com/oauth/register revocation_endpoint: https://app.nutshell.com/oauth/revoke grant_types_supported: - authorization_code response_types_supported: - code code_challenge_methods_supported: - S256 token_endpoint_auth_methods_supported: - none - client_secret_post - client_secret_basic api_key_permissions: documented: false note: The help centre says a "permission type" is selected when creating an API key and names only "API + user impersonation" (for Zapier). No permission matrix is published. source: https://support.nutshell.com/en/articles/8429060-api-keys-create-api-keys-for-3rd-party-apps