Safelist GraphQL Operations for AI Agents | Cosmo MCP Gateway

The Cosmo Router MCP Gateway enables AI agents to interact with federated GraphQL schemas by exposing them as reviewed and OAuth-scoped tools. This approach ensures that AI agents can explore schemas during development but are restricted to executing only approved operations in production. The MCP Gateway operates on a composed supergraph, allowing seamless data resolution across multiple subgraphs without requiring additional services. Two configuration flags manage its operation: one controls schema exposure and the other manages the ability for agents to execute arbitrary operations. During development, both flags are enabled to allow comprehensive schema exploration and query execution, while in production, they are disabled to restrict agents to pre-approved operations, minimizing potential security risks. The system supports per-operation authorization using OAuth 2.1, ensuring that agents operate within their permitted scopes. The architecture is designed to handle schema changes efficiently, with operations re-validated automatically upon schema updates, ensuring continued functionality without manual intervention. This setup avoids the need for a separate AI-safe API by maintaining a single source of truth, which simplifies governance and reduces infrastructure complexity.

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