Get Unsigned Liquidity PSBT

Obtaining an Unsigned PSBT for Adding Liquidity (ARC20)

Create add liquidity PSBT

post

/brc20swap/v2/create_add_liquid_psbt2

Header parameters

Authorizationstring

token

User-Idstring

Body

tick1stringrequired

tick2stringrequired

amount_1stringrequired

amount_2stringrequired

slipperstringrequired

payer_ord_addrstringrequired

fee_ratestringrequired

payer_btc_addrstringrequired

payer_pub_keystringrequired

coin_type_1stringrequired

coin_type_2stringrequired

tokenstringrequired

Responses

application/json

application/json

cURL

JavaScript

Python

HTTP

cURL

curl -L \
  --request POST \
  --url '/brc20swap/v2/create_add_liquid_psbt2' \
  --header 'Content-Type: application/json' \
  --data '{
    "tick1": "SHE•SHE•SHE•SHE•SHE",
    "coin_type_1": "runes",
    "amount_1": "1000",
    "tick2": "BTC",
    "coin_type_2": "btc",
    "amount_2": "1000",
    "fee_rate": "2",
    "slipper": "12",
    "token": "ee1f68b6bc00000:0",
    "payer_ord_addr": "tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e",
    "payer_btc_addr": "tb1qge80xavle7c7k0tk7vceaavwcgpsr3jchl0w3e",
    "payer_pub_key": "02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81:02d3ac7452920b1cc4653516dd4f4381a2df0a8c0aac6e3446e633a73ea63eee81"
  }'

200

x-200:Success

200

{
  "code": 0,
  "msg": "",
  "req_id": "1887756069332492288",
  "data": {
    "psbt": "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",
    "check_sum": "74F36E9221834B276DBE1DFFD6AAA054",
    "tx_size": 407,
    "usr_cnt": 0,
    "vins": null,
    "check_sign_only": false,
    "ToSignInputs": [
      {
        "index": 0,
        "type": "btc"
      },
      {
        "index": 1,
        "type": "ord"
      }
    ]
  }
}

Success

Important Notes

1. Use the same address for both payer_ord_addr and payer_btc_addr.

2. Minimum injection thresholds:

   • BTC: 0.003

   • ARC20: ≥ 546 and must be a positive integer

3. After adding liquidity, the remaining balance of the token in the user's wallet must be either 0 or greater than 546.