Zernio
Developer tools · for freelancers and SMEs and large companies
1/3
One API to post, schedule and analyse on Instagram, TikTok, LinkedIn, YouTube and other social channels.
PriceFree
Visit Zernio
On the Zernio website
Alternatives to Knock
Knock: Notification infrastructure to send email, SMS, push, Slack and in-app messages from your own app through one API.
The other developer tools tools we checked, with the highest overall score at the top.
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Alternatives to Knock
Firecrawl
Developer tools · for freelancers and SMEs and large companies
1/3
Open-source API that scrapes, crawls and searches websites and gives your AI agent the content as Markdown or JSON.
PriceFree
Visit Firecrawl
On the Firecrawl website · partner link
Context.dev
Developer tools · for freelancers and SMEs and large companies
1/3
Web API for AI agents that scrapes, crawls, searches and fetches brand and company data through one API.
PriceFree
Visit Context.dev
On the Context.dev website · partner link
CodeRabbit
Developer tools · for freelancers and SMEs and large companies
1/3
AI code review that checks every pull request in GitHub or GitLab, free for public repositories.
PriceFree14-day free trial
Visit CodeRabbit
On the CodeRabbit website
Comp AI
Developer tools · for SMEs and large companies
1/3
Open-source compliance platform that collects evidence and writes policies for SOC 2, ISO 27001 and GDPR.
PriceOn request
Visit Comp AI
On the Comp AI website
Knock next to the alternatives
| Knock | Zernio | Firecrawl | Context.dev | |
|---|---|---|---|---|
| Price | Free plan | Free plan | Free plan | Free plan |
| Data in the EU | ✕ No | ✕ No | ✕ No | ✕ No |
| Data processing agreement | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Company in the Netherlands | ✕ No | ✕ No | ✕ No | ✕ No |
| Integrations | SendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch, Census | Instagram, Facebook, X, TikTok, YouTube, LinkedIn, Pinterest, Threads, Bluesky, WhatsApp, Google Business Profile, MCP | LangChain, LlamaIndex, OpenAI Agents SDK, n8n, Make, Zapier, Claude Code, Cursor, MCP | MCP, TypeScript, Python, Ruby, Go, PHP |
Facts checked on the vendors' websites.
Which alternatives to Knock have a free plan?
Zernio, Firecrawl, Context.dev and CodeRabbit have a free plan. Do check what it includes; it is often limited.
Which alternatives to Knock are there for freelancers?
Zernio, Firecrawl, Context.dev and CodeRabbit are aimed at freelancers.
Compare Knock directly
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