OpenAI-compatible API
Route OpenAI, DeepSeek, Gemini, and local providers through one stable endpoint on proxystacks.com.
Use one OpenAI-compatible endpoint to route requests across models, track spend, and keep fallbacks ready when providers slow down.
curl https://proxystacks.com/v1/chat/completions \
-H 'Authorization: Bearer sk-relay-••••••••' \
-H 'Content-Type: application/json' \
-d '{ "model": "deepseek-chat", "messages": [ { "role": "user", "content": "Hello, Relay." } ], "stream": true }'
model
relay-mini
response
Hello! Relay is ready
to route your request.
tokens
37
latency
624ms
50.8K
Requests routed
23
Active models
756ms
Avg latency
32.4%
Cost saved
online
online
standby
One Key To Every Model
Core Capabilities
From provider access and routing to billing and logs, ProxyStacks Relay turns model infrastructure into an operable product surface.
Route OpenAI, DeepSeek, Gemini, and local providers through one stable endpoint on proxystacks.com.
Choose providers by model, cost, availability, and environment without changing application code.
Track pricing rules, balances, and request-level spend in a ledger your team can audit.
Capture tokens, latency, status codes, cost, and request IDs across every model call.
Issue separate keys for products, teams, and environments with clear operational boundaries.
Hash keys, limit usage, and keep production traffic protected with sensible gateway defaults.
Workflow
Keep the developer API simple while Relay handles the operational control plane for your team.
Add model providers, pricing rules, model aliases, and environment-level access.
Point your app to ProxyStacks Relay and let the gateway handle auth, mapping, and forwarding.
Review live requests, tokens, spend, latency, and errors from one operational console.
Tune model strategy, rate limits, and budgets with real usage data instead of guesswork.
Unify tool calls, streaming responses, and multi-model fallback behind one API surface.
Share model access across teams while separating keys, quotas, logs, and budgets.
Run complete request flows with a mock provider before connecting production vendors.
Ready to Relay
Create your first Relay API key on proxystacks.com and decouple your application from single-provider risk.
Create a free keyKeep chat, agents, and tool calls moving through standard SSE responses.
Trace balances, pricing rules, request logs, and cost changes from one place.
Store hashed keys and tighten limits progressively as traffic grows.