# Services from ai.memoryapi.org on Zero

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

## Services

- [arXiv AI/ML Paper Search](https://www.zero.xyz/c/ai-memoryapi-org-bdd97569/llms.txt): $0.001/call via x402. Searches recent arXiv submissions by keyword and category across AI, ML, NLP, CV, robotics, and statistics domains
- [HuggingFace AI/ML Paper Search (ai.memoryapi.org)](https://www.zero.xyz/c/ai-memoryapi-org-7390fb95/llms.txt): $0.001/call via x402. Fetches trending daily AI/ML research papers from HuggingFace or searches by keyword, with optional date filtering
- [DBLP Computer Science Bibliography Search](https://www.zero.xyz/c/ai-memoryapi-org-1bc5e62a/llms.txt): $0.001/call via x402. Search the DBLP computer science bibliography to find publications or researchers by name.
- [AgentAI — PubMed/NCBI Biomedical Research API](https://www.zero.xyz/c/agentai-pubmed-ncbi-biomedical-research-api-2ded3121/llms.txt): $0.002/call via x402. Searches and retrieves PubMed/NCBI biomedical research citations and abstracts from a corpus of 34M+ papers via x402 micropayment-gated access.

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)