Docs

Everything you need to integrate Leanroute.

Point your existing OpenAI SDK at api.leanroute.dev/v1 and you're running. Everything else — model catalog, integration playbooks, guardrails, compliance posture, competitor comparisons — is below.

Build with Leanroute

Pointing your existing OpenAI SDK at Leanroute. The 5-minute path.

Developer Guide

OpenAI-compatible endpoints, request shapes, response headers, error codes, code samples in cURL and Python. Start here.

Models & Pricing

Interactive catalog of every model we route to. Filter by tier, region, vision support. Live per-1M-token prices.

Gateway Headers Reference

Every x-gateway-* header the API emits — direction, when it appears, example values, and JS/Python snippets to consume each.

MCP passthrough

new

Add mcp_servers to any /v1/chat/completions request; Claude connects to your MCP server(s) server-side and returns the final answer in OpenAI-shape. The only LLM gateway that routes MCP + chat through one endpoint.

Examples

End-to-end walkthroughs of real Leanroute integrations you can lift wholesale for your own product.

RAG chat bubble

dogfood

The floating chat bubble on this site, from scratch. Embedded corpus + cosine-similarity retrieval, strict system prompt, streaming, anti-abuse — roughly $0.0002 per message. Architecture and cost math.

Integration Guides

Drop-in playbooks for the tools developers actually use.

All integrations

The full catalog — Cursor, Continue, Cline, Aider, OpenWebUI, n8n, plus guardrails vendors Presidio, Lakera, Rebuff.

Coding tools

Cursor, Continue, Cline, Aider, OpenWebUI — each with the exact OPENAI_BASE_URL config and a working example.

Automation

n8n live

n8n drop-in node + AI-Agent recipe. Zapier and Make integrations are on the post-launch roadmap.

Guardrails vendors

If our built-in guardrails (block + redact + moderation) aren't enough, here's how to layer Presidio, Lakera Guard, or Rebuff in front.

Platform Features

Behavior built into the gateway. No code required on your side.

Guardrails

Per-org block + redact regex patterns and OpenAI moderation pre-check. Fail-open posture so a moderation outage never blocks your traffic.

Compliance & Data Residency

Singapore-hosted, PDPA-aware, no-persistence mode for prompt content. What we store, what we don't, by row.

Compare to alternatives

Side-by-side with every LLM gateway you might also be considering.

Compare hub

One page with positioning vs OpenRouter, LiteLLM, Portkey, Helicone, Bifrost, Kong AI Gateway. Links into per-competitor deep-dives.

Missing something?

We document what we ship, not what we plan to ship. If you can't find an integration guide for a tool you use, the OpenAI-compatible base URL configuration usually works directly — see the Developer Guide for the canonical pattern. If you'd like us to add a dedicated guide, tell us.