I'm sorry to hear you're experiencing a 403 error when calling

hydra.acceptOAuth2ConsentRequest()

in production, while your dev and staging environments work as expected. Based on the knowledge sources, here are some possible causes and troubleshooting steps: 1. Authentication Requirements The Ory API reference indicates that the

acceptOAuth2ConsentRequest

operation requires authentication via an Ory access token in some environments, but the Hydra API spec says it does not require authentication. This discrepancy may be due to differences between Ory Network (cloud) and self-hosted Hydra. If you're using Ory Network, ensure your requests are authenticated with a valid Ory access token, as required by the Ory Network API. In self-hosted Hydra, authentication may not be required for this endpoint, but your deployment or proxy could enforce additional restrictions. Double-check your environment and authentication method being used in production versus dev/staging environments. [Ory API Reference - Authentication](https://raw.githubusercontent.com/ory/docs/master/docs/reference/api.json) 2. Client Configuration Differences A 403 error can occur if the OAuth2 client configuration in production differs from dev/staging. For example, the client might not have the correct grant types, redirect URIs, or token endpoint authentication method. Use the CLI to inspect your client configuration and ensure it matches across environments. [Debug: Wrong or misconfigured OAuth 2.0 client](https://www.ory.sh/docs/hydra/debug#refresh-token-flow-fails) 3. Rate Limiting Production environments have stricter rate limits than dev/staging. If you exceed these, you may receive 403 or 429 errors. Check if your production usage is hitting rate limits. [Rate limit tables by subscription plan](https://www.ory.sh/docs/guides/rate-limits#rate-limit-tables-by-subscription-plan) 4. Environment-Specific Issues There have been cases where production projects in Ory Network encountered issues not present in new or free-tier projects. If your project is older or migrated, there could be a backend issue. In a similar case, Ory support resolved the issue for affected projects after a user reached out. [Ory OAuth2 unavailable on new project](https://github.com/ory/network/issues/185) Next Steps: - Double-check your authentication method for the API call in production. - Compare your OAuth2 client configuration between environments. - Review your production logs for more detailed error messages. - If the issue persists and you suspect it's environment-specific, contact Ory support, especially if your project is not new or was migrated. If you can provide the full error response (including any error hints or descriptions), I may be able to help further. If the error only occurs in production and not in dev/staging, it's likely related to configuration, authentication, or a backend issue specific to your production environment.