SignalFuse — Trading Intelligence for AI Agents | MCP + x402 on Base

# SignalFuse Trading Intelligence API > Crypto trading signals, sentiment analysis, macro regime classification, > strategy arena, and fused web search — all payable via x402 micropayments. ## Base URL https://api.signalfuse.co ## Payment x402 micropayments — USDC on Base mainnet (eip155:8453). No API key signup needed. Attach payment headers per the x402 protocol. Machine-readable pricing/requirements: GET /.well-known/x402 ## Free Trial POST /v1/credits/trial body: {"wallet": "0x..."} Returns 5 free credits (one claim per wallet). ## Free Endpoints (no payment required) - GET /v1/health — service health check - GET /v1/regime/preview — macro regime preview - GET /v1/arena/leaderboard — strategy arena standings - GET /v1/pricing — full pricing table ## Paid Endpoints - GET /v1/regime $0.001 — macro regime classification - GET /v1/sentiment/{symbol} $0.002 — ModernFinBERT sentiment (equity tickers) - GET /v1/signal/{symbol} $0.010 — fused directional signal - GET /v1/signal/batch $0.075 — all assets in one call - POST /v1/gateway/search $0.015 — fused Brave+Tavily web search - POST /v1/gateway/search/tavily $0.012 — Tavily-only search - GET /v1/gateway/search/brave?q= $0.008 — Brave-only search - POST /v1/gateway/execute/e2b $0.005 — sandboxed code execution - GET /v1/arena/{strategy_id}/{symbol} $0.001 — single arena strategy signal - GET /v1/arena/batch $0.010 — all 4 strategies × 4 symbols (16 signals) ## Arena Strategies ema_5_breakout, rsi_7_extremes, rsi_reversion_swing, vwap_reversion ## Supported Symbols Crypto (signal, regime, arena): BTC, ETH, SOL, DOGE, PEPE, WIF, BONK, ARB, OP, AVAX Equity (sentiment): TSLA, PLTR, BABA, HOOD, NVDA, AMZN, META, GOOGL ## Machine-Readable Discovery - OpenAPI spec: /openapi.json

openapi: 3.1.0 info: title: SignalFuse Trading Intelligence API description: Fused crypto trading signals — sentiment, macro regime, and market structure in one call. 11 MCP tools including strategy arena for backtested signal comparison. version: 1.0.0 servers: - url: https://api.signalfuse.co paths: /v1/signal/{symbol}: get: operationId: getSignal summary: Get fused trading signal for a crypto asset description: Returns direction (long/short/neutral), signal