# PARADIGMA Crypto Feed > Pay-per-call crypto data API for AI agents. Payment: x402 protocol, USDC on Base mainnet, no API keys, no signup. Each endpoint returns HTTP 402 with payment requirements; pay and retry to get JSON data. ## Paid endpoints (GET) - [/api/opportunities](https://opportunity-api-production.up.railway.app/api/opportunities): $0.01 USDC. Live crypto earning opportunities: active Galxe quests/campaigns scored 0-100 by project size, reward and time window. - [/api/trending](https://opportunity-api-production.up.railway.app/api/trending): $0.005 USDC. Trending crypto tokens right now (CoinGecko) with USD price and 24h change. - [/api/yields](https://opportunity-api-production.up.railway.app/api/yields): $0.01 USDC. Top stablecoin yield pools (DeFiLlama): APY, TVL, chain, risk flags. TVL >= $10M, APY < 60%. - [/api/fear-greed](https://opportunity-api-production.up.railway.app/api/fear-greed): $0.005 USDC. Crypto Fear & Greed index: current value plus 7-day history. - [/api/prices](https://opportunity-api-production.up.railway.app/api/prices): $0.005 USDC. Spot USD prices, 24h change, market cap for up to 25 CoinGecko coin ids. Query param: ids=bitcoin,ethereum,... - [/api/chains](https://opportunity-api-production.up.railway.app/api/chains): $0.01 USDC. Top 30 blockchains ranked by DeFi TVL (DeFiLlama). - [/api/score](https://opportunity-api-production.up.railway.app/api/score): $0.02 USDC. Rule-based farming score 0-100 for any Galxe project with verdict. Query param: project (Galxe alias). - [/api/market-brief](https://opportunity-api-production.up.railway.app/api/market-brief): $0.05 USDC. Premium one-call market snapshot: sentiment + trending + yields + scored opportunities. - [/api/token-safety](https://opportunity-api-production.up.railway.app/api/token-safety): $0.02 USDC. Token safety check (GoPlus): honeypot, taxes, mintable, blacklist — score 0-100 + verdict. Params: chain, address. - [/api/new-pools](https://opportunity-api-production.up.railway.app/api/new-pools): $0.01 USDC. Newest DEX pools on a network (GeckoTerminal), liquidity-filtered. Params: network, min_reserve. - [/api/trending-pools](https://opportunity-api-production.up.railway.app/api/trending-pools): $0.01 USDC. Trending DEX pools right now (GeckoTerminal). Param: network. - [/api/funding-rates](https://opportunity-api-production.up.railway.app/api/funding-rates): $0.005 USDC. Perp funding rates (Hyperliquid): top extremes or requested symbols, hourly + annualized %. Param: symbols. - [/api/gas](https://opportunity-api-production.up.railway.app/api/gas): $0.005 USDC. Gas prices in gwei: Ethereum, Base, Arbitrum, Optimism, Polygon in one call. - [/api/stable-pegs](https://opportunity-api-production.up.railway.app/api/stable-pegs): $0.005 USDC. Stablecoin peg monitor with DEPEG WARNING flags: USDT, USDC, DAI, USDe, FDUSD, PYUSD, FRAX, TUSD. - [/api/news](https://opportunity-api-production.up.railway.app/api/news): $0.01 USDC. Latest crypto headlines from CoinTelegraph, CoinDesk, The Block — one normalized feed. - [/api/dex-volumes](https://opportunity-api-production.up.railway.app/api/dex-volumes): $0.01 USDC. Top-20 DEXes by 24h volume with 1d/7d change (DeFiLlama). - [/api/extract](https://opportunity-api-production.up.railway.app/api/extract): $0.005 USDC. Any public URL to clean agent-ready markdown (Readability). Param: url. - [/api/token-brief](https://opportunity-api-production.up.railway.app/api/token-brief): $0.05 USDC. Premium one-call token due diligence: safety + market data + TRADEABLE/DO NOT TRADE verdict. Params: chain, address. - [/api/search-pools](https://opportunity-api-production.up.railway.app/api/search-pools): $0.005 USDC. Resolve any token name, symbol or address to its DEX pools (GeckoTerminal). Params: query, network (optional). - [/api/token-holders](https://opportunity-api-production.up.railway.app/api/token-holders): $0.01 USDC. Holder distribution: top-10 holders, concentration, creator %, LP lock % (GoPlus). Params: chain, address. - [/api/pool-ohlcv](https://opportunity-api-production.up.railway.app/api/pool-ohlcv): $0.01 USDC. OHLCV candles for a DEX pool (GeckoTerminal). Params: network, pool, timeframe, limit. - [/api/pool-trades](https://opportunity-api-production.up.railway.app/api/pool-trades): $0.01 USDC. Recent swaps for a DEX pool with buy/sell split (GeckoTerminal). Params: network, pool, min_usd. - [/api/orderbook](https://opportunity-api-production.up.railway.app/api/orderbook): $0.01 USDC. Live perp orderbook depth, spread, imbalance (Hyperliquid). Param: coin. - [/api/oi-leaders](https://opportunity-api-production.up.railway.app/api/oi-leaders): $0.01 USDC. Perp open-interest/volume leaderboard with funding (Hyperliquid). Param: sort. - [/api/fees-leaders](https://opportunity-api-production.up.railway.app/api/fees-leaders): $0.01 USDC. Top-20 protocols by 24h fees and revenue (DeFiLlama). - [/api/protocol-tvl](https://opportunity-api-production.up.railway.app/api/protocol-tvl): $0.01 USDC. TVL of any DeFi protocol by chain (DeFiLlama). Param: protocol (slug). ## Free - [/](https://opportunity-api-production.up.railway.app/): service index - [/openapi.json](https://opportunity-api-production.up.railway.app/openapi.json): OpenAPI 3.1 spec - [/.well-known/x402](https://opportunity-api-production.up.railway.app/.well-known/x402): x402 manifest - [/mcp](https://opportunity-api-production.up.railway.app/mcp): stateless MCP server (POST only) exposing all endpoints as paid tools