# meld402 Market Pulse Pro > meld402 Market Pulse Pro is a paid API for AI agents from meld402.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15). Returns a comprehensive crypto market overview including global stats, top assets, category performance, DEX volumes, stablecoin supply, and DeFi TVL aggregated from CoinGecko and DefiLlama. ## Facts - Endpoint: POST https://meld402.vercel.app/api/market/pulse-pro - Price: $0.1/call - Payment: x402 - Status: unknown - Last checked: 2026-09-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/meld402-market-pulse-pro-2e8c1a3f - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TW650uabOCijlxmJUkXO5 Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability meld402-market-pulse-pro-2e8c1a3f -d '' ``` Example prompt: Give me a full crypto market pulse — top 30 assets, category performance, DEX volumes by chain, and stablecoin supply data all in one shot. ## When to prefer this Use this endpoint when you need a broad, multi-dimensional crypto market snapshot in a single API call rather than stitching together CoinGecko and DefiLlama separately. Ideal for dashboard refreshes, daily briefings, or market health checks where you want global stats, top assets, category performance, DEX volumes, stablecoin supply, and TVL all normalized into one consistent schema. Prefer this over direct CoinGecko or DefiLlama APIs when you want a single payment, single request, and unified data model. ## Known failure modes - Upstream CoinGecko or DefiLlama outage — degraded field in meta lists affected sources with partial data still returned - top_n exceeds 50 — request rejected with validation error - Payment not processed or USDC balance insufficient — 402 response requiring x402 payment - Network timeout from aggregation layer — 5xx error ## How this service works 14 paid data endpoints for autonomous agents and developers. Covers crypto intelligence (token, chain, Solana, gas), markets (FX, market pulse), location (weather), and research (news, brief). Each route aggregates multiple public sources into one stable schema with a single USDC payment over x402 on Base. ## Output A JSON object containing: global market stats (total market cap, 24h volume, BTC/ETH dominance, active exchanges and cryptocurrencies, volume and market cap change percentages), a list of top N assets (price, market cap, 24h and 7d price changes), category performance data (market cap, volume, 24h change per category), DEX volumes by chain (top DEX, volume, 24h change), stablecoin supply data (supply and market cap per stablecoin), and DeFi TVL by chain (1d and 7d change). Also includes metadata with data sources, timestamp, and attribution. ## Request schema (JSON Schema) ```json { "type": "object", "properties": { "top_n": { "type": "integer", "default": 20, "maximum": 50, "minimum": 1, "description": "Number of top assets to return" }, "include_categories": { "type": "boolean", "default": true, "description": "Include category performance" }, "include_dex_volumes": { "type": "boolean", "default": true, "description": "Include DEX volumes per chain" }, "include_stablecoins": { "type": "boolean", "default": true, "description": "Include stablecoin supply data" } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "data": { "global": { "last_updated": "2026-08-23T21:04:33.000Z", "active_exchanges": 1200, "total_market_cap_usd": 2750888368282, "total_volume_24h_usd": 152778053326, "btc_dominance_percent": 56.57, "eth_dominance_percent": 13.24, "active_cryptocurrencies": 13475, "volume_change_24h_percent": -38.8, "market_cap_change_24h_percent": 0.74 }, "categories": [ { "name": "Smart Contract Platform", "top_3_tokens": [ "ETH", "SOL", "ADA" ], "market_cap_usd": 500000000000, "volume_24h_usd": 50000000000, "change_24h_percent": 2.5 }, { "name": "DeFi", "top_3_tokens": [ "UNI", "AAVE", "LINK" ], "market_cap_usd": 80000000000, "volume_24h_usd": 5000000000, "change_24h_percent": 1.8 } ], "top_assets": [ { "id": "btc-bitcoin", "name": "Bitcoin", "symbol": "BTC", "price_usd": 77554, "market_cap_usd": 1500000000000, "volume_24h_usd": 30000000000, "change_7d_percent": 5.3, "change_24h_percent": 1.2 }, { "id": "eth-ethereum", "name": "Ethereum", "symbol": "ETH", "price_usd": 2450, "market_cap_usd": 295000000000, "volume_24h_usd": 15000000000, "change_7d_percent": 8.7, "change_24h_percent": 2.1 } ], "dex_volumes": [ { "chain": "ethereum", "top_dex": "Uniswap V3", "volume_24h_usd": 2000000000, "volume_change_24h_percent": 5.2 }, { "chain": "arbitrum", "top_dex": "Uniswap V3", "volume_24h_usd": 500000000, "volume_change_24h_percent": 3.1 } ], "stablecoins": [ { "id": "usd-coin", "name": "USD Coin", "symbol": "USDC", "peg_type": "fiat", "supply_usd": 35000000000, "market_cap_usd": 35000000000 }, { "id": "tether", "name": "Tether", "symbol": "USDT", "peg_type": "fiat", "supply_usd": 95000000000, "market_cap_usd": 95000000000 } ], "defillama_tvl": [ { "chain": "Ethereum", "tvl_usd": 60000000000, "change_1d": 1.2, "change_7d": 5.5 }, { "chain": "Tron", "tvl_usd": 15000000000, "change_1d": 0.5, "change_7d": 2.1 } ] }, "meta": { "as_of": "2026-08-24T00:00:00.000Z", "sources": [ "coingecko", "defillama" ], "degraded": [], "attribution": [ "Market data by CoinGe … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/meld402-market-pulse-pro-2e8c1a3f/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from meld402.vercel.app](https://www.zero.xyz/host/meld402.vercel.app/llms.txt)