diff --git a/src/slp/nft1.js b/src/slp/nft1.js
index a41f1c6..f3c4d1c 100644
--- a/src/slp/nft1.js
+++ b/src/slp/nft1.js
@@ -9,7 +9,7 @@
 */
 
 // Public npm libraries
-const axios = require('axios')
+// const axios = require('axios')
 
 // Local libraries.
 const Address = require('./address')
@@ -419,97 +419,6 @@ class Nft1 {
       throw err
     }
   }
-
-  /**
-   * @api SLP.NFT1.listNFTGroupChildren() listNFTGroupChildren()
-   * @apiName listNFTGroupChildren
-   * @apiGroup SLP NFT1
-   * @apiDescription Return list of NFT children tokens in a NFT Group.
-   * It's assumed provided groupId parameter is for an NFT Group token (type=129)
-   *
-   * Returns an Array with GENESIS transaction IDs of the children tokens.
-   *
-   * @apiExample Example usage:
-   *
-   * const groupId = '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a'
-   * const children = await bchjs.SLP.Nft1.listNFTGroupChildren(groupId)
-   *
-   * children = {
-   *  "nftChildren": [
-   *    "45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9",
-   *    "928ce61fe1006b1325a0ba0dce700bf83986a6f0691ba26e121c9ac035d12a55"
-   *  ]
-   * }
-   */
-  async listNFTGroupChildren (groupId) {
-    try {
-      if (typeof groupId === 'string') {
-        const response = await axios.get(
-          `${this.restURL}slp/nftChildren/${groupId}`,
-          this.axiosOptions
-        )
-        return response.data
-      }
-
-      throw new Error('groupId must be a string.')
-    } catch (error) {
-      // console.log('Error in listNFTGroupChildren()')
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
-    }
-  }
-
-  /**
-   * @api SLP.NFT1.parentNFTGroup() parentNFTGroup()
-   * @apiName parentNFTGroup
-   * @apiGroup SLP NFT1
-   * @apiDescription Return parent NFT Group information for a given NFT child token.
-   * It's assumed provided groupId parameter is for an NFT Child token (type=65)
-   *
-   * Returns a JSON with NFT group information.
-   *
-   * @apiExample Example usage:
-   *
-   * const tokenId = '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9'
-   * const group = await bchjs.SLP.Nft1.parentNFTGroup(tokenId)
-   *
-   * group = {
-   *   "nftGroup": {
-   *     "decimals": 0,
-   *     "timestamp": "2021-05-03 10:36:01",
-   *     "timestamp_unix": 1620038161,
-   *     "versionType": 129,
-   *     "documentUri": "psfoundation.cash",
-   *     "symbol": "PSF.TEST.GROUP",
-   *     "name": "PSF Test NFT Group",
-   *     "containsBaton": true,
-   *     "id": "68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a",
-   *     "documentHash": null,
-   *     "initialTokenQty": 1000000,
-   *     "blockCreated": 686117,
-   *     "totalMinted": null,
-   *     "totalBurned": null,
-   *     "circulatingSupply": null
-   *   }
-   * }
-   */
-  async parentNFTGroup (tokenId) {
-    try {
-      if (typeof tokenId === 'string') {
-        const response = await axios.get(
-          `${this.restURL}slp/nftGroup/${tokenId}`,
-          this.axiosOptions
-        )
-        return response.data
-      }
-
-      throw new Error('tokenId must be a string.')
-    } catch (error) {
-      // console.log('Error in parentNFTGroup()')
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
-    }
-  }
 }
 
 module.exports = Nft1
diff --git a/test/unit/slp-nft1.js b/test/unit/slp-nft1.js
index 763788f..332aaf2 100644
--- a/test/unit/slp-nft1.js
+++ b/test/unit/slp-nft1.js
@@ -4,7 +4,7 @@
 
 const assert = require('chai').assert
 const sinon = require('sinon')
-const axios = require('axios')
+// const axios = require('axios')
 
 // Default to unit tests unless some other value for TEST is passed.
 if (!process.env.TEST) process.env.TEST = 'unit'
@@ -14,7 +14,7 @@ const BCHJS = require('../../src/bch-js')
 const bchjs = new BCHJS()
 
 // Mock data used for unit tests
-const mockData = require('./fixtures/slp/mock-utils')
+// const mockData = require('./fixtures/slp/mock-utils')
 
 // Default to unit tests unless some other value for TEST is passed.
 if (!process.env.TEST) process.env.TEST = 'unit'
@@ -253,95 +253,4 @@ describe('#SLP NFT1', () => {
       assert.isNumber(result.outputs)
     })
   })
-  describe('#listNFTGroupChildren', () => {
-    it('should throw an error for improper input', async () => {
-      try {
-        const groupId = 12345
-
-        await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
-        assert.equal(true, false, 'Unexpected result!')
-      } catch (err) {
-        // console.log(`err: `, err)
-        assert.include(
-          err.message,
-          'groupId must be a string'
-        )
-      }
-    })
-    it('should handle API response error', async () => {
-      try {
-        const error = new Error()
-        error.response = {
-          error: 'NFT group does not exists'
-        }
-        sandbox.stub(axios, 'get').throws(error)
-
-        const groupId = 'non-exists'
-        await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
-      } catch (err) {
-        assert.include(
-          err.response,
-          { error: 'NFT group does not exists' }
-        )
-      }
-    })
-    it('should return array of children GENESIS transactions IDs', async () => {
-      sandbox.stub(axios, 'get').resolves({ data: mockData.mockNftChildrenList })
-
-      const groupId = '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a'
-      const result = await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.property(result, 'nftChildren')
-      assert.isArray(result.nftChildren)
-    })
-  })
-  describe('#parentNFTGroup', () => {
-    it('should throw an error for improper input', async () => {
-      try {
-        const tokenId = 12345
-
-        await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
-        assert.equal(true, false, 'Unexpected result!')
-      } catch (err) {
-        // console.log(`err: `, err)
-        assert.include(
-          err.message,
-          'tokenId must be a string'
-        )
-      }
-    })
-    it('should handle API response error', async () => {
-      try {
-        const error = new Error()
-        error.response = {
-          error: 'NFT child does not exists'
-        }
-        sandbox.stub(axios, 'get').throws(error)
-
-        const tokenId = 'non-exists'
-        await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
-      } catch (err) {
-        assert.include(
-          err.response,
-          { error: 'NFT child does not exists' }
-        )
-      }
-    })
-    it('should return parent NFT group information', async () => {
-      sandbox.stub(axios, 'get').resolves({ data: mockData.mockNftGroup })
-
-      const tokenId = '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9'
-      const result = await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.property(result, 'nftGroup')
-      assert.property(result.nftGroup, 'id')
-      assert.property(result.nftGroup, 'name')
-      assert.property(result.nftGroup, 'symbol')
-      assert.property(result.nftGroup, 'documentUri')
-      assert.property(result.nftGroup, 'versionType')
-      assert.property(result.nftGroup, 'initialTokenQty')
-    })
-  })
 })