Publora builds one-click Cursor integration, hits OAuth spec hurdles along the way

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Publora, a product built for AI agents, set out to create a one-click button allowing users to add its MCP server to the Cursor code editor via a deeplink install mechanism. The button generated correctly, but connections failed before authentication even began, leading the team down a misleading path of suspecting API key issues. The real problem was a chain reaction: a placeholder key triggered a 401 response, which pushed Cursor into OAuth discovery mode, where it encountered Publora's non-standard well-known endpoint and silently stalled. The team initially worked around the issue by manually entering a valid API key, but that defeated the purpose of a seamless one-click experience. Ultimately, engineers implemented a fully spec-compliant OAuth metadata endpoint, resolving the failure chain and enabling the intended single-click setup to work end-to-end.

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