I will build n8n automation with custom API integration and webhooks


Level 1
About this gig
Most n8n problems aren't n8n problems. They're the API that has no node, the auth flow that keeps expiring, or the endpoint that returns something the docs don't mention.
I build the HTTP request nodes by hand - signed requests, OAuth2 refresh, pagination, rate-limit backoff, webhook receivers with signature verification. If the service you need has no n8n integration, send me the docs (or the app) and I'll tell you in one message whether it's possible.
WHAT YOU GET
Custom HTTP nodes for APIs with no n8n integration
OAuth2, token and HMAC-signed auth that survives expiry
Webhook receivers with signature verification
Pagination, retries and rate-limit backoff
Self-hosted n8n on your VPS with Docker (Premium)
NO API DOCS? I work from network traffic analysis of the app or web client. That is usually enough to rebuild the calls you need.
Works with n8n Cloud or self-hosted. You get a workflow you can read and maintain, not a black box.
Message me the service name before you order and I'll tell you straight whether it's doable.
Get to know Mark Wasfy
OBS WebSocket Automation Custom Python Widgets for Streamers
Level 1
- FromEgypt
- Member sinceNov 2016
- Avg. response time3 hours
- Last delivery1 month
Languages
English
My Portfolio
FAQ
What if there are no API docs?
That is not a blocker. I work from network traffic analysis of the app or web client - I watch the real requests the product itself makes, then rebuild them as HTTP nodes in n8n. Undocumented internal endpoints are most of what I do. Send me the app or the URL and I'll confirm before you order.
Do I have to hand over my API keys?
Not to scope the job. For building and testing, use a sandbox account or a scoped key with only the permissions the workflow needs, and rotate it after delivery. If you prefer, you paste the credentials into n8n yourself and I never see them.
Which package do I need?
Basic if every app you need already has an n8n node. Standard if one service has no node, or the auth keeps expiring - that is the most common case. Premium for multi-step builds with 2+ custom APIs, or n8n hosted on your own server. Unsure? Message me and I'll tell you.
n8n Cloud or self-hosted?
I work with both. Cloud is fine for most workflows. Go self-hosted (Premium) if you need unlimited executions without per-run pricing, access to an internal network, or data that cannot leave your own infrastructure. I deploy it on your VPS with Docker and hand over the docs.
