# Services from submitcheck.appin60.com on Zero

> submitcheck.appin60.com serves 4 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/submitcheck.appin60.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/submitcheck.appin60.com/health.json

## Services

- [SubmitCheck Launch Directory Status Checker](https://www.zero.xyz/c/submitcheck-launch-directory-status-checker-32a5bbe4/llms.txt): $0.01/call via x402. Looks up the live status of startup, SaaS, and AI-tool submission directories — flagging dead links, backlink requirements, long queues, and account requirements.
- [SubmitCheck Dead Directories API](https://www.zero.xyz/c/submitcheck-dead-directories-api-efb34f92/llms.txt): $0.005/call via x402. Returns a filtered list of dead, moved, or unreachable startup/SaaS/AI-tool submission directories from a curated set of 516, verified live in October 2026.
- [SubmitCheck Single Directory Lookup](https://www.zero.xyz/c/submitcheck-single-directory-lookup-d888b42f/llms.txt): $0.002/call via x402. Look up a single launch directory domain to get its live/dead/moved status, free submission options, and lowest price as of the October 2026 check.
- [SubmitCheck Directory Listing API](https://www.zero.xyz/c/submitcheck-directory-listing-api-bd73364f/llms.txt): $0.01/call via x402. Returns a filtered, live-checked list of startup/SaaS/AI-tool launch directories with submission details, pricing, and status as of October 2026.

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)