whatson.red Agent API

Search XiaoHongShu / RED in JSON, or expose the same workflow over MCP.

Pay per request with x402

You can call the REST search endpoint without a whatson.red account by paying per request with x402. An unpaid request returns HTTP 402 with payment requirements for $0.05 USDC on Base, Polygon, or Arbitrum. After payment, retry the same request with the x402 payment header.

API keys still work for account-based billing, credits, MCP access, and bundled blog drafts.

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