Tangle Gateway

Tangle Gateway is a unified inference API. One endpoint, hundreds of models, and routing across provider APIs and registered Tangle operators.

What it does

One key, any model. Access OpenAI, Anthropic, Google, Groq, Mistral, and 20+ providers through a single API key.
Operator network. Route to operators registered for Blueprints; the gateway selects from their advertised endpoint, model support, price, latency, and reputation data.
Compliance routing. Zero Data Retention and no-train filtering with verified provider agreements.
BYOK. Bring your own provider keys for zero-markup access.
On-chain payments. Pay operators directly via SpendAuth - no credit card required.

Quick example

curl -X POST "https://router.tangle.tools/v1/chat/completions" \
  -H "Authorization: Bearer $TANGLE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4-6",
    "messages": [{"role": "user", "content": "Hello"}],
    "stream": true
  }'

Works with any OpenAI-compatible SDK. Change the base URL and you’re done.

Architecture

The gateway routes through three tiers, in order:

Tier	What	When
Operators	Tangle-registered inference operators with advertised endpoints	Default for operator-pinned requests and SpendAuth
LiteLLM	Proxy with 100+ provider integrations and built-in retries	Default for standard requests
Direct	Straight to provider API (OpenAI, Anthropic, etc.)	Fallback when LiteLLM unavailable, or when compliance required

When Zero Data Retention or no-train is requested, operators and LiteLLM are skipped - the gateway routes directly to verified providers only.

How it fits

Workbench (agents) → Gateway (inference) → Operators (serving) → Protocol (settlement)

The gateway sits between the Workbench where agents run and the Protocol where operators get paid. Agents in the workbench call the gateway for model access. The gateway selects the best provider or operator, routes the request, tracks usage, and settles payment.

Next steps

Getting Started - make your first request in 2 minutes
Supported Models - browse the model catalog
How Routing Works - understand the 3-tier architecture
Zero Data Retention - compliance for regulated industries

Getting Started