# Services from centrahub.vercel.app on Zero

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

## Services

- [Centra AI Educational Content Generator](https://www.zero.xyz/c/centra-ai-educational-content-generator-d42b1af2/llms.txt): $0.03/call via x402. Generates AI-powered educational content on a given topic and auto-publishes it to the Centra platform
- [Centra Pay-Per-Access Content Fetch](https://www.zero.xyz/c/centra-pay-per-access-content-fetch-2b660a28/llms.txt): $0.01/call via x402. Fetches the full content of a premium article or piece by ID, charging $0.01 USDC per access via x402 micropayment
- [Centra Content Preview](https://www.zero.xyz/c/centra-content-preview-991fb373/llms.txt): free via x402. Fetches a free preview of a pay-per-access content item by its content ID, returning metadata like title, price, and a preview snippet without requiring payment
- [Centra Content Publish Endpoint](https://www.zero.xyz/c/centra-content-publish-endpoint-a906f215/llms.txt): free via x402. Publishes original text content to the Centra pay-per-access platform, making it available for monetized access by readers

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)