This workflow follows the Execute Workflow Trigger → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "[FC Sub] Map a Website",
"settings": {
"executionOrder": "v1"
},
"nodes": [
{
"parameters": {
"content": "## [FC Sub] Map a Website\n**Purpose:** Lightweight URL discovery via Firecrawl `/v1/map`. Returns every URL it can find on the site without fetching page content \u2014 the cheapest way to scope a crawl.\n\n**Called by:** main agent's `map_site` tool.\n\n**Inputs:** `url` (required, site root), `search?` (optional keyword filter), `limit?` (default 500, max 5000), `session_id?`.\n\n**Why this matters:** The winning pattern for any large-site research is **map \u2192 filter via `think` \u2192 batch_scrape selected URLs**. Never call `crawl_site` blind \u2014 it burns credits on pages you don't need. This sub-workflow enables that pattern.\n\n**Credit cost:** 1 credit per call (regardless of URLs returned).\n\n**Flow:** Trigger \u2192 Prep \u2192 Firecrawl `/map` \u2192 Shape \u2192 Ledger \u2192 Return `{ urls[], count, credits_used }`.\n\n**Credentials:** Firecrawl API, Postgres RW.",
"height": 520,
"width": 600,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-40,
-560
],
"id": "sticky-fc-map",
"name": "README"
},
{
"parameters": {
"inputSource": "passthrough"
},
"type": "n8n-nodes-base.executeWorkflowTrigger",
"typeVersion": 1.1,
"position": [
0,
0
],
"id": "fc-map-trigger",
"name": "When Executed by Another Workflow"
},
{
"parameters": {
"jsCode": "const input = $input.first().json;\nconst q = (input.query && typeof input.query === 'object') ? input.query : {};\nconst pick = (k, def) => {\n if (input[k] !== undefined) return input[k];\n if (q[k] !== undefined) return q[k];\n return def;\n};\n\nlet url = (pick('url') || '').toString().trim();\nif (!url) throw new Error('map_site requires a `url` parameter (the site root).');\nif (!/^https?:\\/\\//i.test(url)) url = 'https://' + url;\ntry { new URL(url); } catch { throw new Error(`Invalid URL: ${url}`); }\n\nconst search = (pick('search') || '').toString().trim();\n\nlet limit = Number(pick('limit', 500));\nif (!Number.isFinite(limit) || limit < 1) limit = 500;\nif (limit > 5000) limit = 5000; // hard cap\n\nconst session_id = (pick('session_id') || $execution.id || 'no-session').toString();\n\nreturn [{ json: {\n url,\n search,\n limit,\n session_id,\n execution_id: $execution.id\n} }];"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
220,
0
],
"id": "fc-map-prep",
"name": "Prep Input"
},
{
"parameters": {
"method": "POST",
"url": "https://api.firecrawl.dev/v1/map",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"url\": {{ JSON.stringify($json.url) }},\n \"limit\": {{ $json.limit }}\n {{ $json.search ? (', \"search\": ' + JSON.stringify($json.search)) : '' }}\n}",
"options": {
"response": {
"response": {
"responseFormat": "json"
}
},
"timeout": 120000
}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
440,
0
],
"id": "fc-map-http",
"name": "Call Firecrawl Map"
},
{
"parameters": {
"jsCode": "const prep = $('Prep Input').first().json;\nconst resp = $input.first().json;\nconst urls = Array.isArray(resp.links) ? resp.links\n : Array.isArray(resp.data) ? resp.data\n : Array.isArray(resp.urls) ? resp.urls\n : [];\nconst MAX_RETURN = 1000;\nconst returned = urls.slice(0, MAX_RETURN);\nconst truncated = urls.length > MAX_RETURN;\n\nreturn [{ json: {\n site: prep.url,\n search: prep.search || null,\n urls: returned,\n count: returned.length,\n total_found: urls.length,\n truncated,\n credits_used: 1,\n session_id: prep.session_id,\n execution_id: prep.execution_id\n} }];"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
660,
0
],
"id": "fc-map-shape",
"name": "Shape Response"
},
{
"parameters": {
"operation": "executeQuery",
"query": "INSERT INTO public.firecrawl_credit_ledger (session_id, execution_id, operation, credits_used, url, status, metadata)\nVALUES ($1, $2, 'map', $3, $4, 'ok', $5::jsonb);",
"options": {
"queryReplacement": "={{ $json.session_id }}, {{ $json.execution_id }}, {{ $json.credits_used }}, {{ $json.site }}, {{ JSON.stringify({ search: $json.search, count: $json.count, total_found: $json.total_found }) }}"
}
},
"type": "n8n-nodes-base.postgres",
"typeVersion": 2.6,
"position": [
880,
0
],
"id": "fc-map-ledger",
"name": "Log Credit Ledger"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "m1",
"name": "site",
"value": "={{ $('Shape Response').first().json.site }}",
"type": "string"
},
{
"id": "m2",
"name": "urls",
"value": "={{ $('Shape Response').first().json.urls }}",
"type": "array"
},
{
"id": "m3",
"name": "count",
"value": "={{ $('Shape Response').first().json.count }}",
"type": "number"
},
{
"id": "m4",
"name": "total_found",
"value": "={{ $('Shape Response').first().json.total_found }}",
"type": "number"
},
{
"id": "m5",
"name": "truncated",
"value": "={{ $('Shape Response').first().json.truncated }}",
"type": "boolean"
},
{
"id": "m6",
"name": "credits_used",
"value": "={{ $('Shape Response').first().json.credits_used }}",
"type": "number"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
1100,
0
],
"id": "fc-map-return",
"name": "Return URLs"
}
],
"connections": {
"When Executed by Another Workflow": {
"main": [
[
{
"node": "Prep Input",
"type": "main",
"index": 0
}
]
]
},
"Prep Input": {
"main": [
[
{
"node": "Call Firecrawl Map",
"type": "main",
"index": 0
}
]
]
},
"Call Firecrawl Map": {
"main": [
[
{
"node": "Shape Response",
"type": "main",
"index": 0
}
]
]
},
"Shape Response": {
"main": [
[
{
"node": "Log Credit Ledger",
"type": "main",
"index": 0
}
]
]
},
"Log Credit Ledger": {
"main": [
[
{
"node": "Return URLs",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
[FC Sub] Map a Website. Uses executeWorkflowTrigger, httpRequest, postgres. Event-driven trigger; 7 nodes.
Source: https://github.com/MinaSaad1/n8n-firecrawl-web-crawler-agent/blob/main/workflows/05-sub-map-site.json — original creator credit. Request a take-down →
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