Plug In. Talk to Any Model or Agent. Track It All.
Ship AI features faster with a single endpoint—no backend mess, retries, or guesswork. Logs, costs, and latency tracking included.
Use Cases
- Cross-model orchestration (GPT, Claude, Gemini)
- Smart routing with fallback & cost-aware retries
- Private RAG & custom agent pipelines
- Plugin-driven workflows & marketplace integrations
- End-to-end observability & real-time metrics
- Hosted billing & usage metering
Why Developers Choose Relay
Universal RelayPlane API
One POST /relay call to 50+ models, private RAG endpoints, or custom agent chains.
Open-Source MCP Router
Drop-in Rust router for multi-agent choreography—fully MIT-licensed on GitHub.
Python-A2A Adapter
Publish and pip install our adapter for seamless LangChain & AutoGen integration.
Real-Time Metrics
Track cost, latency, and usage in your dashboard or via our REST logs API.
🚧 What's Coming to RelayPlane
We're just getting started. Here's a glimpse of what's ahead as RelayPlane evolves from a developer-friendly API to a full AI control plane.
✅ In Development
- •Lightweight JS & Python SDKs (3 lines of code).
- •Agent-chaining playground for rapid prototyping.
- •Unified logging + observability across all calls.
🔄 Coming Soon
- •Optimize: built-in caching & smart cost routing.
- •Plugin SDK v0: write custom agents & tools.
- •Agent Marketplace: buy, sell, and share workflows.
🏢 On the Horizon
- •Private cloud & enterprise deployments.
- •SOC-2 Type I compliance.
- •Advanced analytics for team ops.
Simple pricing that scales with you.
Free
Ideal for indie devs—pay only for usage.
- Hosted metering, dashboard & logs
- Up to 5k calls/mo
Maker
100k calls included, then pay-as-you-go.
- Unlimited API keys
- Email support
Growth
Scale with predictable unit economics.
- Volume discounts available
- Dedicated uptime SLA
Agent Marketplace
Coming soon: Build, discover, and monetize AI agent pipelines.
RelayPlane will feature paid plugin ranking, revenue sharing, and collaborative workflows.
Run Your First Call (Quickstart)
import { relay } from "@relayplane/js"; async function main() { const res = await relay({ to: "gpt-4o-mini", payload: { messages: [{ role: "user", content: "What's the capital of France?" }] } }); console.log(res.body); // { "message": "The capital of France is Paris." } }
npm install @relayplane/js
Frequently Asked Questions
What is Relay?
RelayPlane is the AI control-plane: one API for model calls, agent chains, cost/latency insights, and hosted billing. Join the waitlist to get started.
When can I use it?
Private beta is in progress. Join the waitlist for early SDK access.
Do I still need OpenAI / Anthropic keys?
Yes: RelayPlane brokers your own keys so you keep full cost & usage ownership.
How does billing work?
Freemium + pay-as-you-go metered billing—no surprises.
Latest from the Blog
Insights, tutorials, and updates on AI infrastructure



Building with Industry Leaders

Anthropic

OpenAI

LangChain

Vercel
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