# Services from inference402.worlddata402.workers.dev on Zero

> inference402.worlddata402.workers.dev serves 15 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/inference402.worlddata402.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/inference402.worlddata402.workers.dev/health.json

## Services

- [Inference402 Extract – Named Entity & Field Extraction](https://www.zero.xyz/c/inference402-extract-named-entity-field-extraction-5e6bfab9/llms.txt): $0.008/call via x402. Extracts specified named fields (dates, names, amounts, organizations, custom fields, etc.) from free-form text using Llama 3.3 70B, paid per-call in USDC via x402
- [Inference402 Image Describe](https://www.zero.xyz/c/inference402-image-describe-91ed13a8/llms.txt): $0.01/call via x402. Analyzes a public image URL and returns a natural-language description plus detected objects, powered by LLaVA vision model, paid per-call in USDC.
- [Inference402 Sentiment Analysis](https://www.zero.xyz/c/inference402-sentiment-analysis-d2f1323b/llms.txt): $0.002/call via x402. Analyzes a text string and returns a sentiment label (positive/negative/neutral) with a numeric confidence score, powered by Llama 3.1 8B, paid per-call via USDC on Base.
- [Inference402 Arabic Translation (EN↔AR)](https://www.zero.xyz/c/inference402-arabic-translation-en-ar-b5569f29/llms.txt): $0.005/call via x402. Translates text between English and Arabic (MSA or Egyptian dialect) using Llama 3.3 70B, billed per call via USDC on Base mainnet with no account required.
- [Inference402 Content Moderation](https://www.zero.xyz/c/inference402-content-moderation-cbc12e54/llms.txt): $0.002/call via x402. Checks a text input for harmful or unsafe content using Llama Guard 3 8B, returning a verdict and flagged categories
- [Inference402 Text Classifier](https://www.zero.xyz/c/inference402-text-classifier-a4c66337/llms.txt): $0.003/call via x402. Classifies input text into one of the provided candidate labels using Llama 3.3 70B, returning the best-matching label and a confidence score, paid per-call in USDC on Base.
- [Inference402 Speech-to-Text Transcription](https://www.zero.xyz/c/inference402-speech-to-text-transcription-f5508d2e/llms.txt): $0.02/call via x402. Transcribes audio from a public URL into text with timestamps and word count using Whisper Large v3 Turbo, paid per-call in USDC via x402.
- [Inference402 Summarize](https://www.zero.xyz/c/inference402-summarize-af7c0c70/llms.txt): $0.005/call via x402. Summarizes a block of text into a short, medium, or long summary using Llama 3.3 70B, paid per call via USDC on Base
- [Inference402 Text Embeddings](https://www.zero.xyz/c/inference402-text-embeddings-1f83d1fb/llms.txt): $0.002/call via x402. Generates dense vector embeddings for up to 32 text strings using BGE-M3 (1024 dimensions), paid per-call with USDC on Base via x402.
- [Inference402 Text Rewrite](https://www.zero.xyz/c/inference402-text-rewrite-df4e4f68/llms.txt): $0.005/call via x402. Rewrites input text into a specified tone (formal, casual, marketing, or simple) using Llama 3.3 70B, payable per-call in USDC via x402
- [Inference402 Structured JSON Chat](https://www.zero.xyz/c/inference402-structured-json-chat-e51971c2/llms.txt): $0.01/call via x402. Generate LLM responses constrained to a caller-supplied JSON Schema, using Llama 3.3 70B, paid per-call via USDC on Base mainnet with no API key required.
- [Inference402 Large Chat (Llama 3.3 70B)](https://www.zero.xyz/c/inference402-large-chat-llama-3-3-70b-b955cd62/llms.txt): $0.01/call via x402. Pay-per-call conversational AI chat using Llama 3.3 70B, billed at $0.01 USDC per request via x402 protocol on Base mainnet — no API key required.
- [Inference402 Keyword Extraction](https://www.zero.xyz/c/inference402-keyword-extraction-d909c9db/llms.txt): $0.002/call via x402. Extracts the most relevant keywords from a given text using Llama 3.1 8B, billed per-call via USDC on Base with no API key required.
- [Inference402 Chat Small (Llama 3.1 8B)](https://www.zero.xyz/c/inference402-chat-small-llama-3-1-8b-a1f46c5d/llms.txt): $0.002/call via x402. Pay-per-call chat inference using Llama 3.1 8B via USDC micropayment on Base, no API key required
- [Inference402 Machine Translation](https://www.zero.xyz/c/inference402-machine-translation-e58d8596/llms.txt): $0.003/call via x402. Translates text between languages using Meta's M2M100 model, with support for Egyptian Arabic and other languages, paid per-call via USDC on Base.

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)