How do their growth rates compare?

Manifest has a month-over-month growth rate of -23%; Respan has -14.5%.

How does pricing compare?

Manifest: Free. The gateway is free and open source, with a hosted cloud version for easier onboarding and paid tiers for teams and platforms; exact plan pricing is published on Manifest's pricing page. Respan: Freemium. Freemium. There is a free tier plus volume-based and enterprise options that require contacting sales; token pricing varies by model, and Respan advertises bulk rates with a 0% routing fee. Verify current figures on the official pricing page.

What are alternatives to Manifest and Respan?

Other tools in related categories include OpenRouter, Groq, OrcaRouter, LiteLLM, ZenMux.

Manifest vs Respan — Traffic (54.14K vs 91.5K), Pricing & Verdict

Open AI Tools

Manifest vs Respan — Traffic (54.14K vs 91.5K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Manifest	Respan
Official Domain	manifest.build	respan.ai
Pricing Model	Free	Freemium
Monthly Visits	54.14K (54,135)	91.5K (91,503)
MoM Traffic Delta	-16.19K (-23%)	-15.53K (-14.5%)
Primary Market & Share	🇺🇸 United States (15.5%)	🇺🇸 United States (28.8%)
Direct Visits / mo	34.26K	23.12K
User Rating	4.5	4.5
Supported Platforms	Website	Website

Manifest

The open-source LLM gateway that fixes your agents' requests on the fly

Single endpoint routing

One OpenAI-compatible endpoint reaches every configured model, provider, subscription plan or local server.

Autofix request repair

Broken or non-conforming LLM requests are repaired automatically before the error reaches your agent or app.

Fallbacks and reliability

Automatic retry on another provider when one goes down keeps agents and workflows running.

Cost and observability

Track every request, token and dollar broken down by agent, key and provider, with full request and response body logs.

Strengths & Pros

+Open source and self-hostable, with no black box between your agents and providers
+Autofix and automatic fallbacks tackle the real failure rate of production LLM calls
+Cost and token observability by agent, key and provider makes spend accountable
+Supports subscriptions, BYOK, custom providers and local models in one router