KR Crypto Intelligence API

Korean crypto market data + AI analysis for AI agents. 15 paid endpoints (11 crypto + 4 Korean news), 180+ tokens, world's first Korean-to-English crypto sentiment API. Pay-per-use via x402 protocol on Base, Polygon, Solana, and XRPL. AWS Bedrock AgentCore-ready.

Endpoints (15 paid)

Korean News → English (new)

| Endpoint | Price | Description | |----------|-------|-------------| | GET /api/v1/kr-news/kpop | $0.01 | K-pop news (artists/groups) translated to English | | GET /api/v1/kr-news/kpop-summary | $0.05 | K-pop news + AI sentiment analysis, key themes, trending artists | | GET /api/v1/kr-news/semiconductor | $0.02 | Korean semiconductor industry news (Samsung/SK Hynix/HBM) in English | | GET /api/v1/kr-news/semiconductor-summary | $0.10 | Semiconductor news + AI market signal (bullish/bearish), trending companies |

Korean Sentiment Analysis (World's First)

| Endpoint | Price | Description | |----------|-------|-------------| | /api/v1/kr-sentiment | $0.05 | Korean market sentiment in English — combines exchange intelligence (189+ tokens) with Korean news context (Coinness Telegram) for AI-powered insights. 1-hour cache. |

Global vs Korea Divergence

| Endpoint | Price | Description | |----------|-------|-------------| | /api/v1/global-vs-korea-divergence | $0.05 | Global vs Korea divergence (light) — CoinGecko global price + Korean exchange + 1-2 sentence AI summary. 60s cache. | | /api/v1/global-vs-korea-divergence-deep | $0.10 | Deep tier — light data + Korean news signals (Coinness Telegram) + structured AI breakdown (drivers, global context, action suggestion, confidence). 5-min cache. |

Korean Exchange Intelligence

| Endpoint | Price | Description | |----------|-------|-------------| | /api/v1/arbitrage-scanner | $0.01 | Token-by-token Kimchi Premium for 180+ tokens, reverse premium, Upbit-Bithumb price gaps, market share | | /api/v1/exchange-alerts | $0.01 | New listings/delistings detection, investment warnings, caution flags (volume soaring, deposit soaring, etc.) | | /api/v1/market-movers | $0.01 | 1-min price surges/crashes, volume spikes, top 20 tokens by trading volume |

AI-Powered Analysis

| Endpoint | Price | Description | |----------|-------|-------------| | /api/v1/market-read | $0.10 | AI market analysis — 12+ data sources + exchange intelligence + Claude AI token-level signals |

Market Data

| Endpoint | Price | Description | |----------|-------|-------------| | /api/v1/kimchi-premium | $0.002 | BTC Kimchi Premium (Upbit vs Binance) — includes both official USD/KRW basis (premium_pct) and USDT real-trade basis (premium_pct_usdt) for true arbitrage edge measurement | | /api/v1/stablecoin-premium | $0.002 | USDT/USDC premium on Korean exchanges (fund flow indicator) | | /api/v1/kr-prices | $0.002 | Korean exchange prices (Upbit, Bithumb) | | /api/v1/fx-rate | $0.001 | USD/KRW exchange rate |

Free

| Endpoint | Description | |----------|-------------| | /api/v1/symbols | Available trading symbols | | /api/v1/stats | Service statistics | | /health | Service health check | | /llms.txt | AI agent metadata | | /.well-known/x402 | x402 service discovery |

Live API

Base URL: https://api.printmoneylab.com MCP Server: https://mcp.printmoneylab.com/mcp API Docs: https://api.printmoneylab.com/docs

Key Features

Dual-Basis Kimchi Premium (Industry First)

Both official USD/KRW basis (matches what exchanges display) and USDT real-trade basis (what arbitrage bots actually trade) in a single response
The 0.3-1% gap between the two is the structural USDT premium itself — measurable, actionable
Critical for AI trading agents: the official basis is misleading; only USDT basis reflects true arbitrage margin after capital movement costs
No other Kimchi Premium API in the x402 ecosystem provides this dual-basis view

KR Sentiment (Unique — No Competitors Worldwide)

Real-time Korean market sentiment delivered in English
Combines exchange data (189+ tokens Kimchi Premium, warnings, volume spikes, deposit soaring) with Korean news context (Coinness Telegram, 6-hour window)
Claude AI generates: sentiment (BULLISH/BEARISH/CAUTIOUS_FOMO/PANIC/GREED/UNCERTAIN), score (-1.0 to +1.0), English report, exchange signals, news context, sources
Academic research validates: "Korean news sentiment predicts global crypto returns" (2026)
1-hour cache + lazy invocation + concurrency lock for cost efficiency

Global vs Korea Divergence

Light tier: real-time premium between CoinGecko global price and Korean exchange (Upbit), with 1-2 sentence AI interpretation
Deep tier: adds Korean news signals (Coinness Telegram, 24h keywords + sentiment score) and structured AI analysis with Korean market drivers, global context, action suggestion, and confidence level
25 supported symbols (BTC, ETH, XRP, SOL, ADA, DOGE, DOT, MATIC, LINK, AVAX, ATOM, UNI, LTC, NEAR, OP, ARB, APT, ALGO, FTM, SUI, TRX, BCH, ETC, HBAR, SHIB)

Arbitrage Scanner

Real-time Kimchi Premium for every token traded on both Upbit and Binance (189+)
Reverse premium detection (Korean discount = buy signal)
Upbit vs Bithumb price gap scanner (domestic arbitrage)
Market share tracking (Upbit vs Bithumb volume)

Exchange Alerts

New listing / delisting detection (market list comparison every 60s)
Investment warning flags (from Upbit official API)
Caution flags: price fluctuations, volume soaring, deposit soaring, global price differences, small account concentration

Market Movers

1-minute price surge/crash detection (>1% in 60 seconds)
Volume spike detection (24h change rate, >1B KRW volume)
Top 20 tokens by trading volume

AI Market Read

12+ data sources combined: Kimchi Premium, stablecoin premium, FX rate, Upbit/Bithumb volume TOP 5, BTC funding rate, open interest, dominance, Fear & Greed, + exchange intelligence (180+ tokens)
Claude AI generates: signal (BULLISH/BEARISH/NEUTRAL), confidence (1-10), summary, key factors, token-level alerts, risk warning

Payment

Uses the x402 protocol for micropayments. No API key, no subscription, no signup required.

Base: USDC on Base mainnet (eip155:8453)
Polygon: USDC on Polygon mainnet (eip155:137)
Solana: USDC on Solana mainnet
XRPL: RLUSD on XRPL mainnet (xrpl:0) — via /api/v1/xrpl/<endpoint> variants

All paid endpoints are also available via /api/v1/xrpl/<endpoint> for XRPL/RLUSD settlement (same prices, same responses).

Data Sources

Upbit — Largest Korean crypto exchange (245+ KRW markets)
Bithumb — Second largest Korean exchange (450+ markets)
Binance — Global price reference (659+ USDT markets)
CoinGecko — Global crypto prices (divergence endpoints)
Coinness Telegram — Korean crypto news source for sentiment analysis
exchangerate-api.com — USD/KRW FX rate
Alternative.me — Fear & Greed Index
Binance Futures — Funding rate, open interest
Claude AI (Haiku 4.5) — Market analysis and sentiment interpretation

AWS Bedrock AgentCore Integration

KR Crypto Intelligence is x402-native and ready to be discovered by AWS Bedrock AgentCore Payments (launched May 7, 2026 by AWS + Coinbase + Stripe).

Bedrock-powered agents can:

Discover all 11 endpoints via .well-known/x402 and CDP MCP
Pay autonomously with USDC on Base, Polygon, or Solana — or RLUSD on XRPL
Access without API keys, signups, or human approval

Discovery endpoint: https://api.printmoneylab.com/.well-known/x402 MCP server: https://mcp.printmoneylab.com/mcp OpenAPI spec: https://api.printmoneylab.com/openapi.json

No additional setup required. The service is indexed in CDP Bazaar across all 11 endpoints.

MCP Server

Connect any MCP-compatible AI agent (Claude, Cursor, etc.):

{
  "mcpServers": {
    "kr-crypto-intelligence": {
      "url": "https://mcp.printmoneylab.com/mcp"
    }
  }
}

Receipt Verification

Every paid response includes a signed receipt. Bots can verify receipt authenticity using the merchant's public key.

Public Key

Available at /.well-known/x402 manifest under receipt_signer.public_key: curl https://api.printmoneylab.com/.well-known/x402 | jq '.receipt_signer'

Verification (Python)

from eth_account import Account
from eth_account.messages import encode_defunct

receipt = response_json["receipt"]
payload = "|".join([
    receipt["id"], receipt["endpoint"], receipt["amount"],
    receipt["currency"], receipt["network"], receipt["tx_hash"],
    receipt["payer"], receipt["merchant"], receipt["issued_at"]
])
recovered = Account.recover_message(
    encode_defunct(text=payload),
    signature=receipt["signature"]
)
assert recovered.lower() == receipt["signer"].lower()

Receipt Fields

| Field | Description | |---|---| | id | Unique receipt identifier (rcpt_YYYYMMDD_xxxxxx) | | issued_at | ISO 8601 timestamp | | endpoint | API path that was paid for | | amount | Payment amount (USDC on Base/Polygon/Solana, RLUSD on XRPL) | | currency | "USDC" or "RLUSD" | | network | "eip155:8453" (Base), "eip155:137" (Polygon), "solana:..." or "xrpl:0" | | tx_hash | On-chain transaction hash | | payer | Buyer's wallet address | | merchant | KR Crypto's wallet address | | signature | ECDSA secp256k1 signature | | signer | KR Crypto's signer address |

License

MIT License — see LICENSE

kr-crypto-intelligence