# Services from agents.llmapi.ai on Zero

> agents.llmapi.ai serves 6 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/agents.llmapi.ai
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agents.llmapi.ai/health.json

## Services

- [LLM API Chat Completions (agents.llmapi.ai)](https://www.zero.xyz/c/agents-llmapi-ai-llm-api-chat-completions-agents-llmapi-ai-a12a148b/llms.txt): price not listed via MPP. Generates a chat completion response from a curated set of frontier LLMs (GPT, Claude, Gemini, DeepSeek, Grok, Kimi, GLM) via an OpenAI-compatible interface, billed per call.
- [Count Tokens in Messages (LLM API)](https://www.zero.xyz/c/agents-llmapi-ai-count-tokens-in-messages-llm-api-ac2ad1d9/llms.txt): price not listed via MPP. Returns the token count for a given set of messages against a specified model, without generating a response — free of charge.
- [Create Embeddings (LLM API)](https://www.zero.xyz/c/agents-llmapi-ai-create-embeddings-llm-api-3e83a7ab/llms.txt): price not listed via MPP. Generates vector embeddings for input text using OpenAI or Jina embedding models, returning dense float vectors suitable for semantic search, clustering, or retrieval.
- [LLM API Anthropic-Style Messages Endpoint](https://www.zero.xyz/c/agents-llmapi-ai-llm-api-anthropic-style-messages-endpoint-cf16fe1a/llms.txt): price not listed via MPP. Sends an Anthropic-style message request to a selected frontier LLM model and returns a non-streaming text completion.
- [Generate Response (OpenAI Responses API – LLM API Storefront)](https://www.zero.xyz/c/agents-llmapi-ai-generate-response-openai-responses-api-llm-api-88a14071/llms.txt): price not listed via MPP. Synchronously generates a text response from a curated set of frontier LLMs via the OpenAI Responses API format, billed per exact token usage.
- [LLM API Agent Quote & Purchase Guide](https://www.zero.xyz/c/agents-llmapi-ai-llm-api-agent-quote-purchase-guide-2abf3d68/llms.txt): free via x402. Returns a free, wallet-proof quote and step-by-step purchase guide for any LLM API seller endpoint, including contract details, pricing, and prerequisites — without executing any purchase.

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)