# How to Set Up the Agent Bridge for Claude Code, Cursor, and Cline Integration in OmniRoute

> Learn to set up the agent bridge for Claude Code, Cursor, and Cline integration in OmniRoute. Intercept IDE traffic, inject environment variables, and route requests through OmniRoute's local proxy.

- Repository: [Diego Rodrigues de Sa e Souza/OmniRoute](https://github.com/diegosouzapw/OmniRoute)
- Tags: how-to-guide
- Published: 2026-08-03

---

**The Agent Bridge intercepts IDE agent traffic by launching CLI sidecars with injected environment variables, applying Claude Code-specific fingerprints via [`claudeCodeFingerprint.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/claudeCodeFingerprint.ts), and optionally redirecting DNS to route requests through OmniRoute's local proxy.**

Setting up the Agent Bridge in the OmniRoute repository allows Claude Code, Cursor, and Cline to communicate through OmniRoute's unified routing layer instead of connecting directly to provider APIs. This integration requires enabling specific feature flags, configuring OAuth-compatible providers, and launching dedicated CLI sidecars that mimic native client behavior according to the OmniRoute source code.

## Understanding the Agent Bridge Architecture

The bridge consists of three integrated components that work together to transparently proxy agent traffic.

### CLI Launcher Service

Located in [`src/app/(dashboard)/dashboard/cli-tools/launch.ts`](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/(dashboard)/dashboard/cli-tools/launch.ts), the launcher spawns native CLI binaries with modified environment variables. It injects `OMNIROUTE_URL`, `OMNIROUTE_API_KEY`, and `NODE_EXTRA_CA_CERTS` to redirect socket connections from the agents to the local OmniRoute endpoint.

### Fingerprint and Obfuscation Services

The [[`open-sse/services/claudeCodeFingerprint.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeFingerprint.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeFingerprint.ts) file implements header injection and tool-name remapping. It adds headers such as `anthropic-version`, `anthropic-client-id`, and `x-omniroute-fingerprint: claude-code` to satisfy provider validation. For payload transformations, [[`open-sse/services/claudeCodeObfuscation.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeObfuscation.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeObfuscation.ts) handles any required request body modifications.

### DNS Bridge Toggle

The DNS bridge is controlled via the `/api/agent-bridge/dns` endpoint defined in [[`src/app/api/agent-bridge/dns/route.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/app/api/agent-bridge/dns/route.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/api/agent-bridge/dns/route.ts). When enabled, this resolves provider hostnames like `api.anthropic.com` to `127.0.0.1`, ensuring all agent traffic routes through OmniRoute's proxy before reaching external APIs.

## Step-by-Step Setup Guide

### Enable the Agent Bridge Feature Flag

Before configuring providers, you must activate the compatibility layer. Navigate to **Settings → Feature Flags** in the dashboard and enable **`ENABLE_CC_COMPATIBLE_PROVIDER`**. This flag unlocks the Claude Code-compatible provider UI and activates the DNS toggle functionality, as defined in [[`src/shared/utils/featureFlags.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/shared/utils/featureFlags.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/shared/utils/featureFlags.ts).

You can also enable this via the API:

```bash
curl -X POST https://localhost:3000/api/feature-flags \
  -H "Authorization: Bearer $OMNIROUTE_API_KEY" \
  -d '{"flag":"ENABLE_CC_COMPATIBLE_PROVIDER","value":true}'

```

### Configure the Claude Code Compatible Provider

Register the provider in OmniRoute's registry. Go to **Providers → Add Provider** and select **"Add Claude Code Compatible"** (visible only after enabling the feature flag). Enter the OAuth client ID (`CLAUDE_OAUTH_CLIENT_ID`) and redirect URI (`CLAUDE_CODE_REDIRECT_URI`). OmniRoute stores this configuration in the providers table via [[`src/shared/constants/providers.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/shared/constants/providers.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/shared/constants/providers.ts).

CLI alternative:

```bash
omniroute provider add \
  --id claude \
  --type oauth \
  --client-id $CLAUDE_OAUTH_CLIENT_ID \
  --redirect-uri $CLAUDE_CODE_REDIRECT_URI

```

### Activate the DNS Bridge

In **Settings → Agent Bridge**, enable the **DNS Bridge** toggle. This sends a POST request to `/api/agent-bridge/dns` that activates the local DNS resolver, ensuring hostnames like `api.anthropic.com` resolve to your local OmniRoute instance.

```bash
curl -X POST https://localhost:3000/api/agent-bridge/dns \
  -H "Authorization: Bearer $OMNIROUTE_API_KEY" \
  -d '{"enabled":true}'

```

### Launch the CLI Sidecar

Open a terminal and execute the launcher corresponding to your IDE agent:

```bash

# Claude Code

omniroute launch

# Cursor

omniroute launch-cursor

# Cline

omniroute launch-cline

```

These commands spawn the native CLI with injected environment variables. The launcher configures:
- `OMNIROUTE_URL` pointing to your local OmniRoute port
- `OMNIROUTE_API_KEY` for request authorization
- `NODE_EXTRA_CA_CERTS` set to `$HOME/.omniroute/ca-bundle.crt` for TLS validation

## Implementation Code Examples

### Toggle DNS Bridge via API

```bash
curl -X POST https://localhost:3000/api/agent-bridge/dns \
  -H "Authorization: Bearer $OMNIROUTE_API_KEY" \
  -d '{"enabled":true}'

```

### Apply Claude Code Fingerprint

The following TypeScript demonstrates how OmniRoute modifies outgoing requests to mimic Claude Code's native client:

```typescript
import { Request } from 'open-sse/types';

export function applyClaudeFingerprint(req: Request) {
  // Add Claude Code-specific headers
  req.headers.set('anthropic-version', '2023-06-01');
  req.headers.set('x-omniroute-fingerprint', 'claude-code');
  
  // Remap tool names for compatibility
  req.body = remapToolNames(req.body);
  return req;
}

```

## Key Source Files

- [[`src/app/api/agent-bridge/dns/route.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/app/api/agent-bridge/dns/route.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/api/agent-bridge/dns/route.ts) – DNS toggle endpoint
- [[`open-sse/services/claudeCodeFingerprint.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeFingerprint.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeFingerprint.ts) – Header injection and fingerprinting
- [[`open-sse/services/claudeCodeObfuscation.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeObfuscation.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeObfuscation.ts) – Payload transformation logic
- [`src/app/(dashboard)/dashboard/cli-tools/launch.ts`](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/(dashboard)/dashboard/cli-tools/launch.ts) – CLI sidecar launcher
- [[`src/shared/constants/providers.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/shared/constants/providers.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/shared/constants/providers.ts) – Provider registry definitions
- [[`src/shared/utils/featureFlags.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/shared/utils/featureFlags.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/shared/utils/featureFlags.ts) – Feature flag definitions
- [[`docs/frameworks/AGENTBRIDGE.md`](https://github.com/diegosouzapw/OmniRoute/blob/main/docs/frameworks/AGENTBRIDGE.md)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/docs/frameworks/AGENTBRIDGE.md) – Complete Agent Bridge documentation

## Summary

- **Enable** the `ENABLE_CC_COMPATIBLE_PROVIDER` feature flag to unlock Agent Bridge functionality in OmniRoute.
- **Configure** the Claude Code-compatible provider with OAuth credentials in [[`src/shared/constants/providers.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/shared/constants/providers.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/shared/constants/providers.ts).
- **Activate** the DNS bridge via `/api/agent-bridge/dns` to route agent traffic through the local proxy.
- **Launch** CLI sidecars using `omniroute launch` (Claude Code), `omniroute launch-cursor`, or `omniroute launch-cline` with injected `OMNIROUTE_URL` and `OMNIROUTE_API_KEY` environment variables.
- **Verify** fingerprint injection via `x-omniroute-fingerprint: claude-code` headers in [[`open-sse/services/claudeCodeFingerprint.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeFingerprint.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeFingerprint.ts).

## Frequently Asked Questions

### What is the Agent Bridge in OmniRoute?

The Agent Bridge is a transparent proxy layer that allows IDE coding agents like Claude Code, Cursor, and Cline to communicate through OmniRoute while believing they are connected directly to their native APIs. It intercepts traffic via DNS redirection and header fingerprinting to enable unified routing and quota management across multiple AI providers.

### How does the DNS Bridge toggle work?

When you enable the DNS Bridge in the dashboard or via the `/api/agent-bridge/dns` endpoint, OmniRoute starts a local DNS resolver that maps provider hostnames (such as `api.anthropic.com`) to `127.0.0.1`. This forces the CLI agents to send requests to the OmniRoute proxy rather than directly to external servers, as implemented in [[`src/app/api/agent-bridge/dns/route.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/src/app/api/agent-bridge/dns/route.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/api/agent-bridge/dns/route.ts).

### Which environment variables are required for the CLI sidecar?

The launcher in [`src/app/(dashboard)/dashboard/cli-tools/launch.ts`](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/src/app/(dashboard)/dashboard/cli-tools/launch.ts) injects three critical variables: `OMNIROUTE_URL` (the local proxy endpoint), `OMNIROUTE_API_KEY` (your OmniRoute authentication key), and `NODE_EXTRA_CA_CERTS` (path to the custom CA certificate bundle for TLS validation with Claude Code).

### How do I verify the fingerprint is working correctly?

Check the request headers in your CLI agent's debug logs for `x-omniroute-fingerprint: claude-code`. This header is injected by [[`open-sse/services/claudeCodeFingerprint.ts`](https://github.com/diegosouzapw/OmniRoute/blob/main/open-sse/services/claudeCodeFingerprint.ts)](https://github.com/diegosouzapw/OmniRoute/blob/release/v3.8.50/open-sse/services/claudeCodeFingerprint.ts) and indicates that OmniRoute is successfully masquerading as the native Claude Code client to the upstream provider.