Respan

Respan is an AI router that routes requests, monitors agent runs, and evaluates outputs.

Respan is an AI router and observability platform designed to route, monitor, and evaluate agent runs. It lets users send requests to over 1,000 models through a single endpoint with automated fallbacks, response caching, and budget limits. The platform provides automated evaluations using LLM judges, code checks, and human reviewers on test sets or production traffic. Users can track requests, errors, cost, latency, and tokens on a single dashboard and view detailed traces of every LLM call, tool run, and agent turn. It is built for engineers and product teams scaling AI applications and supports security standards including ISO 27001, SOC 2, GDPR, and HIPAA.

Respan at a glance

Best for: Software engineer
Runs on: Web, API
Pricing: Free plan; Team plan; Enterprise plan
Released: December 2024
Category: AI coding tool
Website: respan.ai

Key features

Route requests to 1,000 plus models through a single API
Automatic model fallbacks on errors and rate limits
Response caching to reduce cost and latency
Budgets and rate limits per key, customer, or organization
Automated evaluations using LLM judges, code checks, and human reviewers
Production traffic sampling for test cases and live scoring
Dashboard for requests, errors, cost, latency, and tokens
Detailed tracing of LLM calls, tool runs, retrievals, and agent turns

Use it for

Route AI requests across multiple model providers
Monitor production traffic for errors, latency, and costs
Evaluate LLM outputs against custom test sets
Debug agent runs with step-by-step traces

Alternatives to Respan

Mcpspan — Track MCP tool usage, token costs, and errors privately on your own machine.
OmniRoute — Routes requests across 352 providers with automatic fallback and cost-based selection.
GoRoute — Consumes 5.1MB of RAM with sub-10ms latency for coding agents.
RouterHub — Compare prices and access multiple models through one prepaid API key.
Semantic Router — Replaces slow LLM calls with fast deterministic routing.
Daytona — It provisions sandboxes in under 90 milliseconds with full security isolation.
OrcaRouter — Route requests to the best models without paying token markups.
Weave Router — Routes prompts to cost-efficient models while preserving speed and quality.
Polylane — It autonomously investigates production errors and submits ready-to-merge PR fixes.
FreeLLMAPI — Accesses hundreds of free LLM models and billions of tokens through one API key.
AG-UI — Standardizes agent-user interactions and generative UI for applications.
OpenRouter — Access over 500 models and 80 providers through one unified API.

All Respan alternatives