Marketplace · API · x402

api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages

Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.

Endpoint	`https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~713 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xf8b2dD46542175AD46e14e6133340E652665F2Ee
method	GET
last updated	2026-10-28T13:36:15.031Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-c3540c6b5f53813a

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}