# Services from agentdrop.fyi on Zero

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

## Services

- [AgentDrop Box Key-Value Store (PUT)](https://www.zero.xyz/c/agentdrop-box-key-value-store-put-637366b2/llms.txt): $0.002/call via x402. Stores an arbitrary payload (up to 64KB) under a named key in a specified box, with a configurable time-to-live.
- [AgentDrop Box Key Wait (Long Poll)](https://www.zero.xyz/c/agentdrop-box-key-wait-long-poll-14e2d152/llms.txt): $0.001/call via x402. Long-polls until a specific key in a named box has a sequence number greater than a given value, returning the item or a timeout signal after up to 25 seconds.
- [agentdrop.fyi Chat Completions](https://www.zero.xyz/c/agentdrop-fyi-chat-completions-c7494ecc/llms.txt): $0.002/call via x402. OpenAI-compatible chat completions endpoint providing access to frontier models including GPT-6.1, Claude Sonnet 5.5, Gemini 3.8 Flash, Grok 4.7, and others via a single unified API.

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)
