Free tier only
Free Alternatives to ReefAPI (2026)
ReefAPI has a free tier, but if it does not fit, Here are 6 API & Backend tools you can start using for free, ranked by how closely they match ReefAPI, with what each charges once you outgrow the free plan.
Closest free matches
Ranked by shared use cases, audience and stack with ReefAPI. Every tool here lists a free plan.
Orisift checks phone numbers, email domains, IP addresses and domains through one POST /v1/lookup endpoint and returns a verdict with its evidence.
APIClaw is a flat-rate, OpenAI-compatible API gateway for Claude, OpenAI, DeepSeek, Qwen, Kimi and GLM models. Point any SDK or coding agent at one base URL; 50 free trial requests, plans $19–$129/mo.
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Other free API & Backend tools
Popular free tools in the same category. Less closely matched to ReefAPI, but worth a look.
| Tool | Free plan | Paid from |
|---|---|---|
| Supabase Open source Firebase alternative with Postgres, Auth, Storage, and Realtime. | Free · Pro · Enterprise | — |
| Postman All‑in‑one API platform for designing, testing, documenting and monitoring APIs. | Free tier with core features for individuals and small teams · Paid plans offering advanced collaboration, security, and analytics · Enterprise tier with dedicated support, governance, and custom SLAs | — |
| onsubmit.dev Accept form submissions from any website without writing backend code, with instant notifications to Email, Telegram, Slack, and more. | Free tier available with no credit card required. · Pro plan includes file uploads and advanced integrations like Google Sheets, Jira, and Airtable. | — |
| Screenshot Render Screenshot Render captures full-page and viewport screenshots of any URL via a simple API. Built for developers and SaaS teams who need reliable, high-quality website screenshots at scale. | Free | — |
Free alternatives to ReefAPI: FAQ
Quick answers to common questions
Is ReefAPI free?
Yes, ReefAPI offers a free tier. The tools below are alternatives that are also free to start.
What is the best free alternative to ReefAPI?
Orisift is the closest free match by shared use cases, audience and stack. APIClaw are the next closest.
Which free API & Backend alternatives have paid upgrades?
APIClaw (from $19) list paid plans above their free tier. 5 of the tools listed publish no paid price at all.
How were these free alternatives to ReefAPI chosen?
Tools are ranked by similarity to ReefAPI (shared use cases, target audience, tech stack and pricing model) and filtered to those whose listing shows a free tier, freemium plan or open-source edition. Where fewer than 2 close matches exist, popular free API & Backend tools fill the list and are labelled as such.
Building a free API & Backend tool?
List it free. Tools with a free tier appear on pages like this one.