Free Contact Form API to Receive Submissions in Your Inbox

Yes — 500 form submissions per month, unlimited forms, spam filtering, and webhooks all included on the free plan. No credit card required, ever. It's the genuine free contact form service, not a 14-day trial dressed up as 'free'.

We give you 500 free submissions/month (vs Formspree's 50, Basin's 50, Web3Forms' 250). Pro is $10/mo for 5,000 submissions (Formspree's equivalent is $20). And we have a Lifetime plan ($150 once for 15,000/mo) that no competitor offers. Plus first-class MCP support for Claude Code, Cursor, and Windsurf — the only form backend with AI-agent integration.

Drop our endpoint into your form's action attribute and add a hidden input with your access key. That's it — works on any static site (Next.js, Astro, Hugo, Gatsby, GitHub Pages, Cloudflare Pages, Netlify, Vercel). No backend code, no PHP, no SDK to install.

Yes. Our form backend API works identically across every framework — HTML, React, Next.js, Vue, Nuxt, Svelte, SvelteKit, Astro, Hugo, Gatsby, Remix. The integration is just a POST request, so anywhere you can submit a form, you can use leads.io.

Yes — Webflow's custom form action setting, Framer's form integration, Carrd's form-to-URL setting, and WordPress (no plugin required) all work. Just point the form action at leads.io/api/submit and add the hidden access_key input.

We use a hidden honeypot field. Bots fill it; humans don't see it. Triggered submissions are stored and silently flagged as spam in your dashboard so you can audit the false-positive rate. Real submissions hit your inbox. No CAPTCHA — your visitors stay frictionless.

Yes — webhooks are free on every plan. Paste a Slack incoming-webhook URL or Discord webhook URL and we auto-format for that destination. Or send raw signed JSON to any URL (Zapier, n8n, your own server). Google Sheets coming via Zapier or via direct integration on Pro.

Submissions live in Supabase Postgres with row-level security — only you can read your own rows, even we can't read them via the API. We never share, sell, or train models on submissions. EU data residency is on the roadmap.

Absolutely. Most agencies do exactly this — one account, multiple client websites, all submissions in one dashboard. You can also create multiple forms per account if you want to keep client data separated.

File uploads aren't shipped yet — they're on the roadmap and will land on the Pro and Lifetime tiers. Today we handle text inputs, emails, dropdowns, dates, numbers, and textareas. Join the Pro waitlist on the pricing card and we'll email you when uploads ship.

Swap the form's action URL to https://leads.io/api/submit and replace the access key. Your existing field names work as-is — name, email, message, etc. Migration usually takes under five minutes per form. We have step-by-step guides for each competitor.

We're early — leads.io is in v0 launch. Today the API runs on Vercel + Supabase (multi-region edge + Postgres). A formal SLA with credits will land alongside the Pro plan. Real-time uptime status will publish at status.leads.io once we're past launch.