Proxy Endpoint

Change one URL. SignalVault intercepts all AI traffic transparently — no SDK required.

OpenAI

Set baseURL to https://api.signalvault.io/proxy/openai/v1 and add your SignalVault key as a default header. Everything else stays the same.

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env.OPENAI_API_KEY,
  baseURL: 'https://api.signalvault.io/proxy/openai/v1',
  defaultHeaders: {
    'X-SignalVault-Key': 'sv_live_...',
  },
});

const response = await client.chat.completions.create({
  model: 'gpt-4o',
  messages: [{ role: 'user', content: 'Hello!' }],
});

Anthropic

Set baseURL to https://api.signalvault.io/proxy/anthropic/v1 and add your SignalVault key as a default header.

import Anthropic from '@anthropic-ai/sdk';

const client = new Anthropic({
  apiKey: process.env.ANTHROPIC_API_KEY,
  baseURL: 'https://api.signalvault.io/proxy/anthropic/v1',
  defaultHeaders: {
    'X-SignalVault-Key': 'sv_live_...',
  },
});

const message = await client.messages.create({
  model: 'claude-opus-4-6',
  max_tokens: 1024,
  messages: [{ role: 'user', content: 'Hello!' }],
});

Supported endpoints

Headers

Streaming

Streaming is fully supported. Pass stream: true as normal. SignalVault pipes SSE chunks directly to your client and logs the full response after the stream completes.

Blocked requests

When a guardrail rule with action = block or action = redact matches the prompt, the proxy returns a 400 before forwarding to the upstream provider. The response uses the standard OpenAI error shape so existing error-handling code works without changes:

HTTP 400
{
  "error": {
    "message": "Request blocked by SignalVault guardrail: pii_detection",
    "type": "invalid_request_error",
    "code": "content_policy_violation"
  }
}