The workflow JSON
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{
"name": "Farcaster Tip example",
"nodes": [
{
"parameters": {
"image": "=https://n8n.majus.org/webhook/placeholder?text=Send+some+ETH+to+{{ encodeURIComponent($json.body.untrustedData.inputText.substr(0, 4) + '..' + $json.body.untrustedData.inputText.substr(-2)) }}&fmt=png",
"buttons": {
"items": [
{
"label": "Send 0.001 ETH",
"action": "tx",
"target": "={{ $json.webhookUrl }}?send",
"postUrl": "={{ $json.webhookUrl }}"
}
]
},
"additionalFields": {}
},
"id": "848cd2ac-eeb4-4071-b2cf-18002c2cba5b",
"name": "Display statement",
"type": "@majus/n8n-nodes-web3.farcasterFrameBuilder",
"typeVersion": 1,
"position": [
840,
-40
]
},
{
"parameters": {
"recipient": "={{ $json.body.untrustedData.address }}",
"value": "10000000000000",
"additionalFields": {}
},
"id": "813ab831-4993-4034-8657-347aeed1669d",
"name": "Build Tx",
"type": "@majus/n8n-nodes-web3.farcasterTxBuilder",
"typeVersion": 1,
"position": [
620,
160
]
},
{
"parameters": {
"respondWith": "text",
"responseBody": "={{ $json.html }}",
"options": {
"responseHeaders": {
"entries": [
{
"name": "content-type",
"value": "text/html"
}
]
}
}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
1060,
-240
],
"id": "d0718818-32bb-4df0-b445-9cd58edb4de7",
"name": "Respond with HTML"
},
{
"parameters": {
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
840,
160
],
"id": "6ee72f1a-3761-448d-a486-346e9302d8d3",
"name": "Respond with JSON"
},
{
"parameters": {
"multipleMethods": true,
"path": "46b309cd-4c92-4e05-a48b-57995ecc7c31",
"responseMode": "responseNode",
"options": {}
},
"id": "fe19d79e-81e1-4d3b-8616-02a119e725b1",
"name": "Create",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1.1,
"position": [
180,
-140
]
},
{
"parameters": {
"image": "https://n8n.majus.org/webhook/placeholder?text=Send+a+tip&fmt=png",
"buttons": {
"items": [
{
"label": "Confirm",
"action": "post",
"target": "={{ $json.webhookUrl }}"
}
]
},
"additionalFields": {
"inputTextLabel": "Enter address"
}
},
"id": "6b9ae3ee-6d26-4ae9-a80f-fc0b6c9cbdf2",
"name": "Request address",
"type": "@majus/n8n-nodes-web3.farcasterFrameBuilder",
"typeVersion": 1,
"position": [
840,
-440
]
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "8c9a9acb-fff3-42c2-9195-9bb3b1f4fee9",
"leftValue": "={{ $json.body.untrustedData.transactionId }}",
"rightValue": "",
"operator": {
"type": "string",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
620,
-140
],
"id": "e610ba59-e0ee-4432-b85f-7518405f3e30",
"name": "If transacted"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "0b4ba602-ce79-412a-be5a-b8a9b8b1bb02",
"leftValue": "={{ $json.query.send }}",
"rightValue": "",
"operator": {
"type": "string",
"operation": "notExists",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
400,
-40
],
"id": "555818ab-2d3f-4ec5-b029-ff9c7f0b935b",
"name": "If display"
},
{
"parameters": {
"image": "=https://n8n.majus.org/webhook/placeholder?text=Thanks!&fmt=png",
"buttons": {
"items": [
{
"label": "See transaction",
"target": "=https://sepolia.etherscan.io/tx/{{ encodeURIComponent($json.body.untrustedData.transactionId) }}",
"postUrl": "="
}
]
},
"additionalFields": {}
},
"id": "b4abf4b4-a0dc-4263-8ef1-a8ad24abddbe",
"name": "Display result",
"type": "@majus/n8n-nodes-web3.farcasterFrameBuilder",
"typeVersion": 1,
"position": [
840,
-240
]
}
],
"connections": {
"Display statement": {
"main": [
[
{
"node": "Respond with HTML",
"type": "main",
"index": 0
}
]
]
},
"Build Tx": {
"main": [
[
{
"node": "Respond with JSON",
"type": "main",
"index": 0
}
]
]
},
"Create": {
"main": [
[
{
"node": "Request address",
"type": "main",
"index": 0
}
],
[
{
"node": "If display",
"type": "main",
"index": 0
}
]
]
},
"Request address": {
"main": [
[
{
"node": "Respond with HTML",
"type": "main",
"index": 0
}
]
]
},
"If transacted": {
"main": [
[
{
"node": "Display result",
"type": "main",
"index": 0
}
],
[
{
"node": "Display statement",
"type": "main",
"index": 0
}
]
]
},
"If display": {
"main": [
[
{
"node": "If transacted",
"type": "main",
"index": 0
}
],
[
{
"node": "Build Tx",
"type": "main",
"index": 0
}
]
]
},
"Display result": {
"main": [
[
{
"node": "Respond with HTML",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "58640e1c-7c0f-45f1-9f27-dfacf742c9bc",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "Ecnyf41FfBP6NikM",
"tags": [
{
"name": "farcaster",
"id": "DA0xCzMK1tIjfwy9",
"createdAt": "2025-04-01T18:18:39.039Z",
"updatedAt": "2025-04-01T18:18:39.039Z"
},
{
"name": "web3",
"id": "Rd7qq8NCOaSuEgiS",
"createdAt": "2025-04-01T18:18:41.893Z",
"updatedAt": "2025-04-01T18:18:41.893Z"
}
]
}
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About this workflow
Farcaster Tip example. Uses @majus/n8n-nodes-web3. Webhook trigger; 9 nodes.
Source: https://github.com/majus/n8n-nodes-web3/blob/9f4eb5961fb30806b0d5e034461e22a97ba122c4/examples/farcaster-tip.json — original creator credit. Request a take-down →
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