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Introduction

The PwC AI-CoE Coding Agents Gateway is a service deployed under the IDI (Instant Document Interaction) GenAI Platform architecture. It provides an abstraction over PwC's GenAI Shared Service, offering access to the same LLMs but with centralized governance under the IDI infrastructure.

Key Features​

  • Multi-Provider Support - Access models from Google (Gemini), Anthropic (Claude), OpenAI (GPT), and Azure OpenAI through a single gateway.
  • OpenAI API Compatibility - Use OpenAI compatible Coding Agents (e.g. Codex, Cline, OpenCode).
  • Anthropic Messages API Compatibility - Use Anthropics compatible Coding Agents (e.g. Claude Code).
  • Budget Management - The same built-in budget management system of IDI.
  • Individual API Keys - Each user gets its own api key with dedicated budget and usage monitoring.
  • Interactive API Reference - Explore all endpoints and try calls directly in your browser via the built-in Swagger UI (/docs) or ReDoc (/redoc).

Architecture​

The gateway acts as a unified entry point for AI coding agents, handling authentication and quota enforcement before routing requests to PwC's GenAI Shared Service.

┌─────────────────┐      ┌─────────────────────────────────────────┐      ┌─────────────────────┐      ┌─────────────────┐
│                 │      │   PwC AI-CoE Coding Agents Gateway      │      │                     │      │  LLM Providers  │
│  Coding Agent   │ ───▶ │                                         │ ───▶ │  PwC GenAI Shared   │ ───▶ ├─────────────────┤
│                 │      │  ┌──────────────┐  ┌──────────────────┐ │      │      Service        │      │ OpenAI          │
│ Claude Code     │      │  │ Per-User     │  │    Budget        │ │      │      Lite LLM       |      │ Azure OpenAI    │
│ Cline, Codex    │      │  │ Auth         │  │ Management       │ │      │                     │      │ Google VertexAI │
│ ...             │      │  └──────────────┘  └──────────────────┘ │      │                     │      │ Amazon Bedrock  │
└─────────────────┘      └─────────────────────────────────────────┘      └─────────────────────┘      └─────────────────┘

Request Flow​

  1. Coding Agent sends a request with user credentials (API key + tenant ID).
  2. IDI Authentication Service validates API key and tenant-id to authenticate and authorize the user.
  3. Budget Management System checks and enforces usage limits.
  4. PwC GenAI Shared Service routes the request to the appropriate LLM provider.
  5. Response streams back through the same path to the coding agent.

Next Steps​