# Services from x402engine.app on Zero

> x402engine.app serves 36 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/x402engine.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402engine.app/health.json

## Services

- [x402engine Flight Search API](https://www.zero.xyz/c/x402engine-flight-search-api-70aa4efd/llms.txt): $0.02/call via x402, rated 5.0/5 (2 reviews). Searches for available flights between two airports on a given date, with optional filters for stops, class, price, and passengers, billed per call via USDC micropayment.
- [x402engine ElevenLabs Text-to-Speech](https://www.zero.xyz/c/x402engine-elevenlabs-text-to-speech-6db68b62/llms.txt): $0.02/call via x402, rated 4.3/5 (3 reviews). Converts text to ultra-realistic speech audio using ElevenLabs voices, with multilingual support and custom voice ID selection, billed per call via x402 micropayments.
- [x402engine Code Execution Sandbox](https://www.zero.xyz/c/x402engine-code-execution-sandbox-c874cb4a/llms.txt): $0.005/call via x402. Runs arbitrary code in an isolated sandbox supporting Python, JavaScript, Bash, and R, returning stdout/stderr and results
- [x402engine Perplexity Search-Augmented LLM](https://www.zero.xyz/c/x402engine-perplexity-search-augmented-llm-ae6ce977/llms.txt): $0.06/call via x402. Answers questions using a search-augmented LLM (Perplexity) that grounds responses in real-time web search with citations
- [x402engine Claude Haiku LLM API](https://www.zero.xyz/c/x402engine-claude-haiku-llm-api-3c8b94cc/llms.txt): $0.02/call via x402. Runs Anthropic's Claude Haiku model via a pay-per-call HTTP 402 micropayment endpoint for fast, affordable text generation
- [x402engine DeepSeek V4 Flash LLM](https://www.zero.xyz/c/x402engine-deepseek-v4-flash-llm-8efee2b0/llms.txt): $0.003/call via x402. Runs DeepSeek's low-latency V4 Flash model for ultra-low-cost reasoning and coding tasks with up to 1M token context, accessible via x402 micropayment at $0.003 USDC per call
- [x402engine Voice-Cloning Text-to-Speech (LUX)](https://www.zero.xyz/c/x402engine-voice-cloning-text-to-speech-lux-191ab22e/llms.txt): $0.02/call via x402. Clones a voice from a reference audio URL and synthesizes new speech from text at 48kHz quality
- [x402engine Video Quality — Kling V3 Pro 5-Second Video Generation](https://www.zero.xyz/c/x402engine-video-quality-kling-v3-pro-5-second-video-generation-856ff3f7/llms.txt): $0.7/call via x402. Generates a production-quality 5-second video clip using Kling V3 Pro from a text prompt, with configurable aspect ratio and negative prompt, via HTTP 402 micropayment at $0.70 USDC per call.
- [x402engine Text Embeddings API](https://www.zero.xyz/c/x402engine-text-embeddings-api-b3ae60a5/llms.txt): $0.001/call via x402. Generates text embeddings using OpenAI text-embedding-3-small for semantic search, clustering, and RAG pipelines, paid per-call via x402 micropayments
- [DeepSeek V4 Flash 0731 (x402engine)](https://www.zero.xyz/c/deepseek-v4-flash-0731-x402engine-dde9025a/llms.txt): $0.003/call via x402. Runs inference on DeepSeek's re-post-trained V4 Flash revision with enhanced agentic capabilities, coding, and reasoning over a 1M-token context window, billed per call via x402 micropayments.
- [x402engine Kimi K3 (MoonshotAI)](https://www.zero.xyz/c/x402engine-kimi-k3-moonshotai-1577f54c/llms.txt): $0.04/call via x402. Runs inference on MoonshotAI's Kimi K3 frontier multimodal model with 1M token context window, optimized for agentic tasks, via pay-per-call micropayment
- [x402engine Hotel Search via Google Hotels](https://www.zero.xyz/c/x402engine-hotel-search-via-google-hotels-f3621498/llms.txt): $0.02/call via x402. Search for hotels by location and date range, returning properties with prices, ratings, and amenities via Google Hotels (powered by SerpApi).
- [x402engine Web Screenshot API](https://www.zero.xyz/c/x402engine-web-screenshot-api-901fdd3d/llms.txt): $0.01/call via x402. Captures a screenshot of any public URL, optionally as a full-page capture, for $0.01 USDC per call via HTTP 402 micropayment.
- [GLM-5.2 Large-Scale Reasoning Model via x402engine](https://www.zero.xyz/c/glm-5-2-large-scale-reasoning-model-via-x402engine-e7903a32/llms.txt): $0.03/call via x402. Calls Z.ai's GLM-5.2 large-scale reasoning model with 1M context window, optimized for long-horizon agent workflows and software engineering tasks, via pay-per-call HTTP 402 micropayment.
- [x402engine Wallet Balance Lookup](https://www.zero.xyz/c/x402engine-wallet-balance-lookup-9ef0d1b3/llms.txt): $0.005/call via x402. Returns token balances for a given wallet address on a specified blockchain (EVM, Solana, Bitcoin, 20+ chains)
- [x402engine ENS Reverse Lookup](https://www.zero.xyz/c/x402engine-ens-reverse-lookup-f48d4fb1/llms.txt): $0.001/call via x402. Resolves an Ethereum address to its ENS (Ethereum Name Service) human-readable name via a pay-per-call micropayment API.
- [x402engine Claude Opus 5 LLM API](https://www.zero.xyz/c/x402engine-claude-opus-5-llm-api-1b65eff8/llms.txt): $0.07/call via x402. Calls Anthropic's Claude Opus 5 model with a 1M-token context window for complex coding, analysis, and autonomous agentic tasks via pay-per-call micropayment
- [x402engine Imagen Nano Image Generation](https://www.zero.xyz/c/x402engine-imagen-nano-image-generation-6b00dd8c/llms.txt): $0.1/call via x402. Generates high-quality images from text prompts using Google's Imagen Nano model with configurable aspect ratio and output format
- [x402engine IPFS Pin](https://www.zero.xyz/c/x402engine-ipfs-pin-03456073/llms.txt): $0.01/call via x402. Pins JSON objects, files, or URLs to IPFS for permanent decentralized storage, returning a content-addressed CID
- [x402engine Gemini Flash LLM API](https://www.zero.xyz/c/x402engine-gemini-flash-llm-api-fea446d1/llms.txt): $0.009/call via x402. Calls Google's Gemini Flash model for fast, balanced text generation at low cost via a pay-per-call x402 endpoint
- [x402engine Gemini Pro API](https://www.zero.xyz/c/x402engine-gemini-pro-api-e95f91eb/llms.txt): $0.035/call via x402. Provides pay-per-call access to Google's Gemini Pro large language model for reasoning, coding, and multimodal tasks via HTTP 402 micropayments
- [x402engine Crypto Price History](https://www.zero.xyz/c/x402engine-crypto-price-history-86ef7109/llms.txt): $0.003/call via x402. Fetches historical price, market cap, and volume data for a cryptocurrency over a specified time range and currency
- [x402engine Crypto Markets List](https://www.zero.xyz/c/x402engine-crypto-markets-list-5cd131b1/llms.txt): $0.002/call via x402. Returns paginated cryptocurrency market data including prices, market caps, and rankings for all coins, filterable by category and currency
- [x402engine ENS Name Resolver](https://www.zero.xyz/c/x402engine-ens-name-resolver-bed42059/llms.txt): $0.001/call via x402. Resolves an ENS (Ethereum Name Service) name to its underlying Ethereum address and associated records
- [x402engine Web Scrape API](https://www.zero.xyz/c/x402engine-web-scrape-api-21fef803/llms.txt): $0.005/call via x402. Fetches and returns the raw content of any public web page given a URL, paid per-call via USDC micropayment.
- [x402engine Hailuo Video Generation](https://www.zero.xyz/c/x402engine-hailuo-video-generation-bb4ae90e/llms.txt): $0.65/call via x402. Generates AI video clips using the Hailuo model via HTTP 402 micropayment, payable in USDC on Base, USDm on MegaETH, or USDC on Solana.
- [x402engine Token Price Lookup](https://www.zero.xyz/c/x402engine-token-price-lookup-82fd9816/llms.txt): $0.005/call via x402. Fetches current USD prices for one or more on-chain tokens by specifying their chain and contract address
- [x402engine Fast Video Generation](https://www.zero.xyz/c/x402engine-fast-video-generation-716db0e8/llms.txt): $0.55/call via x402. Generates a short video clip quickly from a text prompt or image input, paid via USDC micropayment at $0.55 per call
- [x402engine Token Metadata Lookup](https://www.zero.xyz/c/x402engine-token-metadata-lookup-1974cee4/llms.txt): $0.002/call via x402. Fetches on-chain token metadata (name, symbol, decimals, supply, etc.) for a given token contract address on a specified blockchain network.
- [x402engine Crypto Search API](https://www.zero.xyz/c/x402engine-crypto-search-api-e0044aef/llms.txt): $0.001/call via x402. Searches for cryptocurrency information by coin name or symbol, returning relevant coin data
- [x402engine Crypto Price API](https://www.zero.xyz/c/x402engine-app-5506f515/llms.txt): $0.001000/call via x402. Returns the real-time price of any cryptocurrency in any specified fiat currency
- [x402engine GPT-5.2 Codex LLM API](https://www.zero.xyz/c/x402engine-gpt-5-2-codex-llm-api-d122edcd/llms.txt): $0.06/call via x402. Runs inference against GPT-5.2 Codex via a pay-per-call HTTP 402 micropayment endpoint on x402engine, billed at $0.06 USDC per call
- [x402engine IPFS Content Retrieval](https://www.zero.xyz/c/x402engine-ipfs-content-retrieval-8dd2ba8d/llms.txt): $0.001/call via x402. Fetches content stored on IPFS by CID via a pay-per-call HTTP 402 micropayment gateway
- [x402engine GPT-5.6 LLM API](https://www.zero.xyz/c/x402engine-gpt-5-6-llm-api-ed9828b1/llms.txt): $0.08/call via x402. Provides pay-per-call access to OpenAI's GPT-5.6 model for complex analysis, coding, and planning tasks via HTTP 402 micropayments
- [x402engine Crypto Trending Endpoint](https://www.zero.xyz/c/x402engine-crypto-trending-endpoint-bd428552/llms.txt): $0.001/call via x402. Returns a list of currently trending cryptocurrencies with real-time market data
- [x402engine Longcat-2 LLM API](https://www.zero.xyz/c/x402engine-longcat-2-llm-api-f70f81da/llms.txt): $0.005/call via x402. Runs inference on the Longcat-2 large language model via a pay-per-call HTTP 402 micropayment endpoint

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)