# x402 Engine 28 pay-per-call APIs for AI agents via HTTP 402 crypto micropayments. Image generation, LLM inference, code execution, audio transcription, crypto market data, blockchain analytics, ENS resolution, I… ## Quick Start ```bash # Connect this server (installs CLI if needed) npx -y @smithery/cli@latest mcp add x402engine/x402engine-mcp # Browse available tools npx -y @smithery/cli@latest tool list x402engine/x402engine-mcp # Get full schema for a tool npx -y @smithery/cli@latest tool get x402engine/x402engine-mcp discover_services # Call a tool npx -y @smithery/cli@latest tool call x402engine/x402engine-mcp discover_services '{}' ``` ## Direct MCP Connection Endpoint: `https://x402engine-mcp--x402engine.run.tools` ## Tools (24) - `discover_services` — List all available x402 Engine APIs with pricing, endpoints, and payment networks. Call this first to understand what's… - `generate_image` — Generate an image from a text prompt. Three quality tiers: 'fast' ($0.015, FLUX Schnell), 'quality' ($0.05, FLUX.2 Pro)… - `execute_code` — Execute code in a secure sandboxed environment (E2B). Supports Python, JavaScript, Bash, and R. $0.005 per execution. - `transcribe_audio` — Transcribe audio to text using Deepgram Nova-3. Accepts a public URL to an audio file. $0.10 per transcription. - `get_crypto_price` — Get current prices for cryptocurrencies. $0.001 per request. - `get_crypto_markets` — Get top cryptocurrencies by market cap with detailed market data. $0.002 per request. - `get_crypto_history` — Get historical price data for a cryptocurrency. $0.003 per request. - `get_trending_crypto` — Get trending cryptocurrencies. $0.001 per request. - `search_crypto` — Search for a cryptocurrency by name or symbol. $0.001 per request. - `get_wallet_balances` — Get token balances for a wallet address on any supported chain. $0.005 per request. - `get_wallet_transactions` — Get transaction history for a wallet address. $0.005 per request. - `get_wallet_pnl` — Get profit and loss analysis for a wallet's token trades. $0.01 per request. - `get_token_prices` — Get DEX-derived prices for tokens by contract address. $0.005 per request. - `get_token_metadata` — Get metadata for a token (name, symbol, decimals, etc.). $0.002 per request. - `pin_to_ipfs` — Pin JSON data to IPFS via Pinata. Returns the IPFS CID. $0.01 per pin. - `get_from_ipfs` — Retrieve content from IPFS by CID. $0.001 per request. - `search_flights` — Search flight offers by route, dates, and passengers. Returns pricing, itineraries, and airlines. $0.01 per request. - `search_locations` — Search for airports and cities by keyword. Returns IATA codes, names, and coordinates. $0.005 per request. - `search_hotels` — Search hotel offers by city and dates. Returns room details, pricing, and availability. $0.01 per request. - `search_cheapest_dates` — Find the cheapest travel dates for a route. Returns date/price pairs sorted by price. $0.01 per request. - `resolve_ens` — Resolve an ENS name (e.g. vitalik.eth) to an Ethereum address. $0.001 per request. - `reverse_ens` — Look up the ENS name for an Ethereum address. Returns null if none set. $0.001 per request. - `llm_chat` — Send a chat completion request to any supported LLM. Models: gpt-4o ($0.04), gpt-4o-mini ($0.003), gpt-4.1 ($0.03), gpt… - `create_embeddings` — Generate text embeddings using OpenAI text-embedding-3-small. For semantic search, clustering, and RAG. $0.001 per requ… ```bash # Get full input/output schema for a tool npx -y @smithery/cli@latest tool get x402engine/x402engine-mcp ``` ## Resources - `x402engine://services`