Test, compare and plan

Developer utilities for evaluating endpoint compatibility, cost, account balances, and provider fit.

API Endpoint Tester

Simulate API wire protocols (OpenAI Chat, OpenAI Responses, Anthropic Messages, Gemini) with diagnostic request timelines and generated curl commands.

Local-only privacyOpen tool

Compatibility Tester

Inspect routing endpoints for tool calling, streaming (SSE), JSON Schema structured output, and vision compatibility with Claude Code, Codex, and Cline.

Agent workflowsOpen tool

Cost Calculator

Calculate monthly and annual spend across competing routing providers with prompt caching discount factors and side-by-side savings graphs.

Cache savingsOpen tool

Balance Checker

Inspect pre-paid credit balances and billing allowances privately without sending credentials to third-party servers.

Zero key retentionOpen tool

Model Picks Wizard

Input your workload constraints (latency tolerance, context tokens, coding tool prerequisites) to generate ranked, explainable routing recommendations.

Explainable AIOpen tool