Crypto News Feed API

Crypto News Feed API

Real-time crypto news with sentiment scores and token mentions. Multi-source aggregation for trading signals. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "crypto-news": {
      "url": "https://crypto-news.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl "https://crypto-news.api.klymax402.com/api/news"
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

Tool	Method	Path	Price	Description
crypto_get_latest_news	GET	/api/news	$0.005	Get latest crypto news with sentiment scores and token mentions

crypto_get_latest_news

Use this when you need the latest crypto news and market-moving headlines. Returns aggregated articles with sentiment in JSON.

Parameters

Name	Type	Required	Description
limit	number	no	Number of articles to return (default 20, max 100).
token	string	no	Filter by token symbol (e.g. BTC, ETH, SOL). Optional — returns all if omitted.

Returns

• articles -- array of news items with title, url, source, publishedAt
• sentiment -- sentiment score per article (-1 to +1, negative=bearish, positive=bullish)
• mentionedTokens -- array of token symbols mentioned in each article
• category -- article category (market, regulation, defi, nft, technology)
• source -- news source name (CoinGecko, CryptoPanic, RSS)

Example response:

{"articles":[{"title":"ETH breaks $3,200 resistance","url":"https://...","source":"CryptoPanic","publishedAt":"2026-04-13T10:30:00Z","sentiment":0.72,"mentionedTokens":["ETH"],"category":"market"}],"total":20}

When to use: market sentiment analysis, news-driven trading signals, and staying updated on crypto events. Filter by token to get focused news.

Not for: price data (use finance_get_token_price), historical candles (use token_get_ohlcv_history), funding rates (use perp_scan_funding_arbitrage), whale movements (use crypto_track_whale_transactions).

Example agent prompts

• "The latest crypto news and market-moving headlines"

Payment

• Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
• Network: Base L2 (eip155:8453)
• Asset: USDC
• Facilitator: Coinbase CDP (primary), PayAI (fallback)
• Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

• Catalog: https://klymax402.com/llms.txt
• Full API reference: https://klymax402.com/llms-full.txt
• Live stats: https://klymax402.com/stats

License

MIT