# Services from launchcheck-x402.fly.dev on Zero

> launchcheck-x402.fly.dev serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/launchcheck-x402.fly.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/launchcheck-x402.fly.dev/health.json

## Services

- [ProposalCheck](https://www.zero.xyz/c/proposalcheck-01a21357/llms.txt): $1/call via x402. Stress-tests a product, feature, API, implementation, or business proposal and returns a structured green-light, revise, or rethink decision with detailed analysis.
- [ProposalCheck Premium](https://www.zero.xyz/c/proposalcheck-premium-85e2ee5a/llms.txt): $2/call via x402. Deep red-team analysis of a product or technical proposal using extended reasoning to surface counter-theses, hidden dependencies, flawed economics, and critical unknowns before committing investment.
- [LaunchCheck Reaction Check](https://www.zero.xyz/c/launchcheck-reaction-check-84747aa6/llms.txt): $0.5/call via x402. Stress-tests launch copy through eight audience lenses and returns structured risks, likely questions, recommended changes, and a fact-preserving rewrite.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)