# Services from dripstack.xyz on Zero

> dripstack.xyz 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/dripstack.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/dripstack.xyz/health.json

## Services

- [DripStack List Publications](https://www.zero.xyz/c/dripstack-publications-003b3cc4/llms.txt): free. Returns a list of all Substack publications tracked by DripStack, including their slugs, site URLs, titles, descriptions, and last sync timestamps
- [DripStack Publication Post Fetcher](https://www.zero.xyz/c/dripstack-publication-post-fetcher-a372406b/llms.txt): $0.1/call via x402. Fetches a specific Substack newsletter post by publication and post slug, including a synthesized summary, for AI agent access via micropayment.
- [DripStack Stock Picks API](https://www.zero.xyz/c/dripstack-stock-picks-api-1230be4f/llms.txt): $1/call via x402. Returns AI-extracted stock-picker calls sourced from Substack publications for a given date, priced per distinct source post returned.
- [dripstack.xyz Post Publisher](https://www.zero.xyz/c/dripstack-xyz-b97937a7/llms.txt): $0.05/call via x402. Publishes a post to a specific publication on dripstack.xyz by publication and post slug

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)