Split

API Base

Test URL: https://test-api-proxy.ddpurse.com

Main URL: https://api-btc.tiertop.io

You can split the CAT20 assets of a specified address into different addresses through the following interface.

Get Split CAT20 PSBT

post

Header parameters

AuthorizationstringOptional

token

User-IdstringOptional

Body

tickstringRequired

tickName + colon + tokenId

is_ofc_tokenbooleanRequired

Whether it's an official token (individuals should default to false, otherwise contact the official for whitelisting)

is_average_splitbooleanRequired

Whether to split evenly to the original address

split_numintegerRequired

Split Amount

user_addrstringRequired

Current User Address

user_pubkeystringRequired

Current User Public Key

cat_20_output_to_splitstringRequired

txid + colon + vout

token_addrstringRequired

Required if selecting an official token

fee_rateintegerRequired

Responses

200

Success

application/json

x-200:Success

Success

application/json

post

HTTPcURLJavaScriptPython

POST /brc20swap/get_split_cat20_psbts HTTP/1.1
Host: 
Content-Type: application/json
Accept: */*
Content-Length: 220

{
  "tick": "text",
  "is_ofc_token": true,
  "is_average_split": true,
  "split_num": 1,
  "toinfos": [
    {
      "to_addr": "text",
      "to_amt": 1
    }
  ],
  "user_addr": "text",
  "user_pubkey": "text",
  "cat_20_output_to_split": "text",
  "token_addr": "text",
  "fee_rate": 1
}

{
  "code": 1,
  "msg": "text",
  "data": null
}

Split Users' CAT20

Parameter Example

{
  "tick": "dog:b1071ae617c66050d518587f67564885ca1a618b387a15f84001e3fa244ef3d6_0",
  "is_ofc_token": false,
  "user_addr": "bc1pxul8mg4fvx....cxej453h24smw03s0",
  "user_pubkey": "02d3ac7452920b1cc4....0a8c0aac6e3446e633a73ea63eee81",
  "cat_20_output_to_split": "08806ff819db249637a7c1cc762e4f9e29182d7dc658b7571f12c2b539106a1f:2",
  "token_addr": "bc1pxul8mg4fvx....cxej453h24smw03s0",
  "fee_rate": 9,
  "toinfos": [
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    }
  ]

Regarding cat_20_output_to_split, you need to query the corresponding CAT20 UTXO of the corresponding address, find the UTXO you want to split, and then concatenate it with the txId and outputIndex of the corresponding UTXO Query address reference (please replace tokenIdOrTokenAddr and ownerAddrOrPkh)

• Testnet URL
• Mainnet URL

Split Official CAT20

If you're using DotSwap's CAT20 deposit endpoint, you can use these 2 endpoints to split your deposited CAT20 tokens (aka "official CAT20", since they are in DotSwap's liquidity pool.)

• When you first call the deposit endpoint /create_deposit_cat20_psbtv2, you can set the parameter not_split:true.

• If the deposit is succesful, /create_deposit_cat20_order_by_psbt will return receiver_addr and txid.

Then, you can use the following parameters to call the split endpoint POST /brc20swap/get_split_cat20_psbts.

Parameter Example

{

  // These two parameters should be set to true by default
  "is_ofc_token": true,
  "is_average_split": true,

  // This is the wallet you used for the deposit
  "user_addr": "bc1psx048lgxx9qlgnw2yjn6vw7ndz07f5rdlfxraqpxkr84tqa7670sagd4k8",
  "user_pubkey": "03c22e2f276e66c24e515b24a0c6bcf53852b046b31bbaf98d3f3075c005729691",

  // The token to be split (keep the same as the token name you deposited)
  "tick": "dog:b1071ae617c66050d518587f67564885ca1a618b387a15f84001e3fa244ef3d6_0",

  // This is the txid + :1 returned by the deposit interface (:1 is fixed)
  "cat_20_output_to_split": "3c92ae8ce3fd6377ac9316a28ded9ca5daef835dd3cf2613b8047c1ee9bbf530:1",

  // This is the receiver_addr returned by the deposit interface
  "token_addr": "bc1plsm7wgedgkguhk5xyllhyml2zstu0z7zs353hq7h6jlvu5puf4sqhc2l5t",

  // The number should be greater than 4
  "split_num": 5,

  "fee_rate": 9
}

cURL Example

curl 'https://test-api-proxy.ddpurse.com/brc20swap/get_split_cat20_psbts' \
  -H 'Accept: application/json, text/plain, */*' \
  -H 'Accept-Language: en' \
  -H 'Cache-Control: no-cache' \
  -H 'Connection: keep-alive' \
  -H 'Content-Type: application/json' \
  -H 'Origin: http://localhost:60002' \
  -H 'Pragma: no-cache' \
  -H 'Referer: http://localhost:60002/' \
  -H 'Sec-Fetch-Dest: empty' \
  -H 'Sec-Fetch-Mode: cors' \
  -H 'Sec-Fetch-Site: cross-site' \
  -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36' \
  -H 'sec-ch-ua: "Google Chrome";v="131", "Chromium";v="131", "Not_A Brand";v="24"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "macOS"' \
  --data-raw '{"tick":"dog:b1071ae617c66050d518587f67564885ca1a618b387a15f84001e3fa244ef3d6_0","is_ofc_token":true,"user_addr":"bc1psx048lgxx9qlgnw2yjn6vw7ndz07f5rdlfxraqpxkr84tqa7670sagd4k8","user_pubkey":"03c22e2f276e66c24e515b24a0c6bcf53852b046b31bbaf98d3f3075c005729691","cat_20_output_to_split":"3c92ae8ce3fd6377ac9316a28ded9ca5daef835dd3cf2613b8047c1ee9bbf530:1","token_addr":"bc1plsm7wgedgkguhk5xyllhyml2zstu0z7zs353hq7h6jlvu5puf4sqhc2l5t","fee_rate":9,"is_average_split":true,"split_num":5}'

Send Split CAT20 PSBT

post

Header parameters

AuthorizationstringOptional

token

User-IdstringOptional

Body

psbtsstring[]Required

Other parameters are the same as those for get_psbt endpoint.stringRequired

Responses

200

Success

application/json

x-200:Success

Success

application/json

post

HTTPcURLJavaScriptPython

POST /brc20swap/save_split_cat20_psbts HTTP/1.1
Host: 
Content-Type: application/json
Accept: */*
Content-Length: 89

{
  "psbts": [
    "text"
  ],
  "Other parameters are the same as those for get_psbt endpoint.": "text"
}

{
  "code": 1,
  "msg": "text",
  "data": {
    "tx_id": "text"
  }
}

Request Parameters

// Inherit the parameters of the previous interface
export interface SaveSplitCat20PsbtsBody extends GetSplitCat20PsbtsBody {
  psbts: string[];
}

Return Result

export interface SaveSplitCat20PsbtsRes {
  tx_id: string;
}

Parameter Example

{
  "tick": "dog:b1071ae617c66050d518587f67564885ca1a618b387a15f84001e3fa244ef3d6_0",
  "is_ofc_token": false,
  "user_addr": "bc1pxul8mg4fvx....cxej453h24smw03s0",
  "user_pubkey": "02d3ac7452920b1cc4....0a8c0aac6e3446e633a73ea63eee81",
  "cat_20_output_to_split": "08806ff819db249637a7c1cc762e4f9e29182d7dc658b7571f12c2b539106a1f:2",
  "token_addr": "bc1pxul8mg4fvx....cxej453h24smw03s0",
  "fee_rate": 9,
  "toinfos": [
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {

      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    },
    {
      "to_addr": "bc1pxrvq4n9ud.....587lf3xszyyczr",
      "to_amt": 5
    }
  ],
  "order_id": "",
  "psbts": [
    "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",
    "cHNidP8BAKwCAAAAAUV4KF9qW9jpts4tPyGS0dmlR0h8+Qz+8Hu6reMArHenAAAAAAD/////AwAAAAAAAAAAGmoYY2F0AZ+Zmft96aoXbolo7Pw2FV21AHtkSgEAAAAAAAAiUSBS9ewkaBUSiJ92WjMTt0ag6SsB3z9OSEBCNpBqH/Ri/kheAAAAAAAAIlEg8cMnykWA1Bp0K8OUWUPbHzp+SgQIqOlGQZgTu3uiRNIAAAAAAAEBKzpmAAAAAAAAIlEg8cMnykWA1Bp0K8OUWUPbHzp+SgQIqOlGQZgTu3uiRNIBCEIBQLp039gq0GzSfhmnOxTJ/Olq+CahVb1dh9WD/Oj+MS0okK7Q4f530iE/UWf12dnCjmvAMjF+yrOfDT1g8BJePqQAAAAA",
    "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"
  ]
}

cURL Example

curl 'https://test-api-proxy.ddpurse.com/brc20swap/save_split_cat20_psbts' \
  -H 'Accept: application/json, text/plain, */*' \
  -H 'Accept-Language: en' \
  -H 'Cache-Control: no-cache' \
  -H 'Connection: keep-alive' \
  -H 'Content-Type: application/json' \
  -H 'Origin: http://localhost:60002' \
  -H 'Pragma: no-cache' \
  -H 'Referer: http://localhost:60002/' \
  -H 'Sec-Fetch-Dest: empty' \
  -H 'Sec-Fetch-Mode: cors' \
  -H 'Sec-Fetch-Site: cross-site' \
  -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36' \
  -H 'sec-ch-ua: "Google Chrome";v="131", "Chromium";v="131", "Not_A Brand";v="24"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "macOS"' \
  --data-raw '{"tick":"dog:b1071ae617c66050d518587f67564885ca1a618b387a15f84001e3fa244ef3d6_0","is_ofc_token":true,"user_addr":"bc1psx048lgxx9qlgnw2yjn6vw7ndz07f5rdlfxraqpxkr84tqa7670sagd4k8","user_pubkey":"03c22e2f276e66c24e515b24a0c6bcf53852b046b31bbaf98d3f3075c005729691","cat_20_output_to_split":"3c92ae8ce3fd6377ac9316a28ded9ca5daef835dd3cf2613b8047c1ee9bbf530:1","token_addr":"bc1plsm7wgedgkguhk5xyllhyml2zstu0z7zs353hq7h6jlvu5puf4sqhc2l5t","fee_rate":9,"is_average_split":true,"split_num":5,"order_id":"","psbts":["cHNidP8BAIkCAAAAARJTZeYyavrM5m1L5sK4rahTDlRR7G1Kgao/c+LUK3IJAwAAAAD/////AqFuAAAAAAAAIlEg8cMnykWA1Bp0K8OUWUPbHzp+SgQIqOlGQZgTu3uiRNJj2WECAAAAACJRIIGfU/0GMUH0Tcokp6Y702if5NBt+kw+gCawz1WDvtefAAAAAAABAStxTWICAAAAACJRIIGfU/0GMUH0Tcokp6Y702if5NBt+kw+gCawz1WDvtefAQMEAQAAAAETQcJ21qTEi6F1QoNEClyyVKH5Npik3n8dvgC9hV1/CjNdXZ4mKhuwEP53G6IHYdcSuCVzgOD1ilAa9/OeA5vIjSYBARcgwi4vJ25mwk5RWySgxrz1OFKwRrMbuvmNPzB1wAVylpEAAAA=","cHNidP8BAKwCAAAAAf5gw44vaKscEIOdEQ1JrGCKx4HfkYbuvXa7LnCZ3s24AAAAAAD/////AwAAAAAAAAAAGmoYY2F0AWRURBrWYrooP0U81DTquW48pBCHSgEAAAAAAAAiUSBS9ewkaBUSiJ92WjMTt0ag6SsB3z9OSEBCNpBqH/Ri/q9mAAAAAAAAIlEg8cMnykWA1Bp0K8OUWUPbHzp+SgQIqOlGQZgTu3uiRNIAAAAAAAEBK6FuAAAAAAAAIlEg8cMnykWA1Bp0K8OUWUPbHzp+SgQIqOlGQZgTu3uiRNIBCEIBQARHENDsE+fqRt7GqUW/UWzmg9RTq6p41vhjQEty6gWzOgta8ogVNywJrvFUbQm15DMru4/emVjiDwl0GFf0Ys4AAAAA","cHNidP8BAP1/AQIAAAADMPW76R58BLgTJs/TXYPv2qWc7Y2iFpOsd2P944yukjwBAAAAAP////9JK/qTrKEVqJbwYs9WjtfNGKWabamZcE3S8QjHiLkVrAEAAAAA/////0kr+pOsoRWolvBiz1aO180YpZptqZlwTdLxCMeIuRWsAgAAAAD/////BgAAAAAAAAAAGmoYY2F0AZUS1+/sBJzhNQA0cxSuCGe4ipnoSgEAAAAAAAAiUSBDEE+mqJWOtyeQgcd/ztVttJrXEBda+i9ohqCbgG4jmkoBAAAAAAAAIlEgQxBPpqiVjrcnkIHHf87VbbSa1xAXWvovaIagm4BuI5pKAQAAAAAAACJRIEMQT6aolY63J5CBx3/O1W20mtcQF1r6L2iGoJuAbiOaSgEAAAAAAAAiUSBDEE+mqJWOtyeQgcd/ztVttJrXEBda+i9ohqCbgG4jmkoBAAAAAAAAIlEgQxBPpqiVjrcnkIHHf87VbbSa1xAXWvovaIagm4BuI5oDAAAAAAEBK0oBAAAAAAAAIlEgQxBPpqiVjrcnkIHHf87VbbSa1xAXWvovaIagm4BuI5oAAQErSgEAAAAAAAAiUSBS9ewkaBUSiJ92WjMTt0ag6SsB3z9OSEBCNpBqH/Ri/gABASuvZgAAAAAAACJRIPHDJ8pFgNQadCvDlFlD2x86fkoECKjpRkGYE7t7okTSAAAAAAAAAA=="]}'