.gif)
We build custom applications 5x faster and cheaper 🚀
Book a Free Consultation
Stuck on an error? Book a 30-minute call with an engineer and get a direct fix + next steps. No pressure, no commitment.
Direct answer: You can integrate n8n with OpenClaw by treating OpenClaw skills as HTTP-driven services: configure the skill and its credentials in ClawHub, expose or consume HTTP endpoints (webhooks or API calls) from n8n, and manage authentication explicitly (OAuth2 or API keys) in both ClawHub and n8n. Use n8n’s HTTP Request and Webhook/Trigger nodes to invoke skills or receive callbacks, validate webhook signatures or tokens, store long-lived state outside the agent if needed, and debug by inspecting API responses, runtime logs, and credential scopes. The integration is explicit — nothing is magical — so design for explicit auth, idempotency, retries, and external persistence for production load.
Example generic REST call pattern (curl):
.png)
.png)
// Invoke skill via POST to the skill-invoke endpoint
curl -X POST "https://<OPENCLAW_RUNTIME>/invoke-skill" \
-H "Authorization: Bearer $OPENCLAW_TOKEN" \
-H "Content-Type: application/json" \
-d '{"skill_id":"my-skill","input": {"text":"process this"}}'
Example webhook HMAC verification in an n8n Function node (JavaScript):
// <b>//</b> msg.payload contains raw body, msg.headers contains headers
const crypto = require('crypto');
const secret = $credentials.webhookSecret; // <b>//</b> store secret in n8n credentials
const receivedSig = msg.headers['x-signature']; // <b>//</b> header used by the skill
const body = JSON.stringify(msg.payload);
const computed = crypto.createHmac('sha256', secret).update(body).digest('hex');
if (computed !== receivedSig) {
throw new Error('Invalid signature');
}
return msg;
Speak one‑on‑one with a senior engineer about your no‑code app, migration goals, and budget. In just half an hour you’ll leave with clear, actionable next steps—no strings attached.
1
401 Unauthorized in n8n means the OpenClaw token you sent was not accepted — common causes are using the wrong header/prefix, sending a malformed token (whitespace/expired), wrong request URL, or misconfigured n8n credential type.
# validate token directly
curl -i -H "Authorization: Bearer $OPENCLAW_TOKEN" "$OPENCLAW_API_URL/health"
2
OpenClaw webhooks must be validated in n8n by computing the same HMAC signature OpenClaw used (usually HMAC-SHA256) over the raw request payload with your shared webhook secret and comparing it to the signature header sent with the webhook using a timing-safe comparison. Store the secret in n8n credentials or env vars and reject requests when signatures mismatch.
Use a Function node to compute HMAC and compare. Replace header name/secret with your configured values.
``` const crypto = require('crypto'); // secret from credentials or env const secret = $credentials?.openclawSecret || process.env.OPENCLAW_WEBHOOK_SECRET; const headerName = process.env.OPENCLAW_SIG_HEADER || 'x-signature'; const headers = items[0].json.headers || {}; const sig = headers[headerName] || headers[headerName.toLowerCase()]; const payload = Buffer.from(JSON.stringify(items[0].json)); const expected = 'sha256=' + crypto.createHmac('sha256', secret).update(payload).digest('hex'); if(!sig || !crypto.timingSafeEqual(Buffer.from(sig), Buffer.from(expected))) throw new Error('Invalid signature'); return items; ```3
The direct approach: receive the OpenClaw event in n8n's Webhook node, inspect the JSON structure, then use n8n expressions, the Set node, and (when needed) a Function node to normalize nested fields and rename keys so downstream nodes see a flat, consistently named payload.
Use the Webhook node to capture the OpenClaw Event Schema JSON. OpenClaw events are explicit JSON; find nested paths like $json.event.user.id.
{{ $json.event.user.id }}).4
Direct answer: Handle OpenClaw 429s by reading the HTTP 429 and any Retry-After header, then implement exponential backoff with capped retries and jitter in your n8n workflow: on 429, compute wait time (use Retry-After if present), Wait node for that duration (or computed backoff), increment an attempt counter, and loop to retry the HTTP Request until success or max attempts.
Use an HTTP Request node → If node (statusCode===429) → Function/Set to compute backoff → Wait node → loop back to HTTP Request. Respect Retry-After header when present; add jitter; cap backoff and attempts.
// <b>//</b> compute exponential backoff with jitter
const base = 2; const max = 120; const attempt = $json.attempt || 0;
let wait = Math.min(max, base * Math.pow(2, attempt)); // <b>//</b> seconds
wait = wait * (0.8 + Math.random()*0.4); // <b>//</b> add jitter
return [{ waitSeconds: Math.ceil(wait), attempt: attempt+1 }];
This prompt helps an AI assistant understand your setup and guide you through the fix step by step, without assuming technical knowledge.
From startups to enterprises and everything in between, see for yourself our incredible impact.
They do complex work on extremely fast timelines and effectively manage the testing and pre-launch process to deliver the best possible product. I'm extremely impressed with their execution ability.
