Index onlineMerchant portal
Api Endpoint

kychange

Swap $0.10 of USDC on Base into sats on Bitcoin Lightning: pay this route over x402, name a Lightning address or a BOLT11 invoice for exactly the quoted sats (or with no amount), and the desk pays the sats within seconds with the preimage as the receipt. Testnet instance: Base Sepolia USDC in, Lightning testnet3 sats out.

Open interactive test console

Offering

Provider
kychange.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://kychange.com/api/sats/0.10
MIME type
Not provided
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
Swap, lightning, Bitcoin, run402

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.1 USDC
Atomic price: 100000 · Network: eip155:84532 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:84532",
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "amount": "100000",
    "payTo": "0x8acf0d190f77878dcc8531480bfeefd3d6793a73"
  }
]

Observed health

Status
Healthy
Latest latency
253 ms
Average latency
1098 ms
HTTP status
204
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "body": {
    "destination": "you@getalby.com"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "destination": {
              "description": "A Lightning address (name@domain) or a BOLT11 invoice",
              "type": "string"
            },
            "quote_id": {
              "description": "Optional quote_id from GET /api/quote",
              "type": "string"
            }
          },
          "required": [
            "destination"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}