deepblue-x402-api

name	deepblue-x402-api
description	Use when an agent needs live crypto trading signals, BTC macro intelligence, Polymarket prediction market odds, or sentiment data — paid per-call via x402 USDC micropayments on Base. No API keys needed; agents pay autonomously.
homepage	https://deepbluebase.xyz
price_range	$0.001–$0.03 USDC per call
network	eip155:8453 (Base)
wallet_address	0x47ffc880cfF2e8F18fD9567faB5a1fBD217B5552
tags	["x402","crypto-signals","polymarket","prediction-markets","sentiment","btc","trading","base","usdc","pay-per-call"]

DeepBlue x402 API

AI-powered crypto intelligence for agents. Pay-per-call with USDC on Base via x402. No API keys, no subscriptions — agents pay autonomously using the x402 payment protocol.

Base URL: https://api.deepbluebase.xyz Facilitator: https://facilitator.payai.network Network: Base (eip155:8453) Asset: USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)

When to Use

• You need live 5-minute BTC/ETH/SOL/XRP trading signals with confidence scores
• You want Polymarket prediction market odds on upcoming events
• You need crypto market sentiment (Fear & Greed, whale flow, funding rates)
• You want BTC macro analysis (liquidation risk, open interest, regime detection)
• You need Polymarket performance analytics and market discovery

Available Endpoints

Endpoint	Price	Description
GET /signals	$0.01	5-min trading signals: direction (UP/DOWN), confidence (0.50–0.78), RSI, orderbook imbalance, volume regime
GET /sentiment	$0.01	Fear & Greed index, whale flow direction, momentum regime, funding rate sign
GET /market-intel	$0.02	BTC macro: open interest, liquidation cascade risk, funding rates, dominance, regime classification
GET /polymarket	$0.01	Active Polymarket market discovery — slugs, prices, volume, categories
GET /prediction-markets	$0.03	Premium: full Polymarket intelligence with odds, edge analysis, volume trends
GET /crypto-sentiment	$0.03	Premium: combined sentiment + funding + momentum + regime analysis
GET /performance	$0.01	DeepBlue live trading track record on Polymarket
GET /price/{token}	$0.001	Token spot price (ETH, BTC, SOL, etc.)

Quick Start (Node.js)

import { wrapFetchWithPayment } from "@x402/fetch";

const fetch = wrapFetchWithPayment(globalThis.fetch, {
  wallet: privateKeyToAccount(process.env.PRIVATE_KEY),
});

// Get BTC trading signals — pays ~$0.01 USDC automatically
const signals = await fetch("https://api.deepbluebase.xyz/signals").then(r => r.json());
console.log(signals);
// { coin: "BTC", direction: "UP", confidence: 0.67, regime: "trending_bull", ... }

Quick Start (Python)

from x402.client import x402_session
import os

with x402_session(private_key=os.environ["PRIVATE_KEY"]) as session:
    # Get live market sentiment — pays ~$0.01 USDC automatically
    sentiment = session.get("https://api.deepbluebase.xyz/sentiment").json()
    print(sentiment)
    # {"fear_greed": 62, "regime": "greed", "whale_flow": "accumulation", ...}

    # Get BTC macro intelligence
    intel = session.get("https://api.deepbluebase.xyz/market-intel").json()
    print(f"Liquidation risk: {intel['liquidation_risk']}")
    print(f"Regime: {intel['regime']}")

Quick Start (AgentCash / mcp)

Compatible with AgentCash MCP — use the mcp__agentcash__fetch tool to call any endpoint:

mcp__agentcash__fetch("https://api.deepbluebase.xyz/signals")

AgentCash handles x402 payment automatically from your USDC balance.

Response Examples

/signals

{
  "timestamp": "2026-03-23T04:00:00Z",
  "signals": [
    {
      "coin": "BTC",
      "direction": "UP",
      "confidence": 0.67,
      "indicators": {
        "rsi": 58.2,
        "orderbook_imbalance": 0.12,
        "volume_spike": true,
        "aggressor_ratio": 0.61
      },
      "regime": "trending_bull"
    }
  ],
  "window_seconds_remaining": 180
}

/market-intel

{
  "btc_price": 84200,
  "open_interest_usd": 18500000000,
  "funding_rate": 0.0012,
  "liquidation_risk": "moderate",
  "dominance": 62.4,
  "regime": "bull_trending",
  "fear_greed": 68,
  "recommendation": "bullish_bias"
}

/prediction-markets

{
  "markets": [
    {
      "slug": "btc-updown-5m-1742700000",
      "question": "Will BTC be higher in 5 minutes?",
      "yes_price": 0.54,
      "no_price": 0.46,
      "volume_24h": 12400,
      "closes_in_seconds": 180
    }
  ]
}

Payment Flow

1. Agent calls GET https://api.deepbluebase.xyz/signals
2. Server responds with HTTP 402 + payment requirements (price, payTo address, network)
3. x402 client signs a USDC transfer on Base and attaches it as X-Payment header
4. Agent retries with payment — server verifies and returns data
5. Total round-trip: ~1-2 seconds

This is the standard x402 flow. Any x402-compatible client works: @x402/fetch, @x402/axios, AgentCash, x402-langchain, or any client from the coinbase/x402 SDK.

Use Case: Autonomous Trading Agent

# Agent loop: check signals, trade on Polymarket if confident
with x402_session(private_key=PRIVATE_KEY) as session:
    signals = session.get(f"{BASE}/signals").json()
    best = max(signals["signals"], key=lambda s: s["confidence"])

    if best["confidence"] >= 0.55:
        markets = session.get(f"{BASE}/prediction-markets").json()
        # Find matching 5-min market and place order
        ...

Built by DeepBlue

DeepBlue is a 5-agent autonomous system running live on Polymarket since January 2026. Our trading loop places real USDC bets using these signals every 5 minutes. We eat our own cooking.

• Live at: deepbluebase.xyz
• Examples: github.com/ERROR403agent/deepblue-x402-examples
• Discord: discord.gg/wpSKuA57bq
• Twitter: @error403agent