Dev tools · alternatives · 2026
24 alternatives to API DNA
Free API Fingerprint Verification Engine
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
Secure users by their typing behavior with free low-code API
2020 · typingdna.com · its alternatives →
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Simplest way to verify identities online
2018 · trueface.ai · its alternatives →
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Gradient▲153Developer API for building private LLMs that you own
2023 · hyperagent.com · its alternatives →
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Free online tool to test APIs and autogenerate documentation
2018 · swagger.io · its alternatives →
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Ludwig 0.8▲109Build and fine-tune custom LLMs on your private data
2023 · ludwig.ai · its alternatives →
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Lenzfree tier, from $7.99/mo▲259Independent, multi-model fact-checking API for AI workflows
Aug 2026 · lenz.io · its alternatives →
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Please forgive the sign up. It means we can give away and keep track of free inference usage/no API keys needed. Happy to send sign in credentials on request if you prefer.
2025 · enginelabs.ai · its alternatives →
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Stile.iD▲59A private identity verification API to verify real users
Sep 2026 · stile.id · its alternatives →
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Check which model your AI agent is really using
Jul 2026 · verifyllmapi.com · its alternatives →
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I made FingerprinterJS, a small library with no dependencies that creates browser fingerprints from signals like canvas, WebGL, audio, fonts, userAgent, and screen info. It’s written in TypeScript, lets you enable/disable collectors, add custom data, and includes a simple suspicious-activity score. Would love feedback.
2025 · github.com · its alternatives →
- 14LangSearch▲37
Free web search API, free rerank API, world engine for AGI
2024 · langsearch.com · its alternatives →
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I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…
Nov 2025 · github.com · its alternatives →
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We’re building an open-source tool that makes it easy to expose secure, LLM-optimized APIs on top of your structured data—without manually designing endpoints or worrying about compliance. AI agents and LLM-powered applications need structured access to data, but traditional APIs and databases weren’t built with AI workloads in mind. Our tool automatically generates APIs that: - Filter out PII & sensitive data to comply with GDPR, CPRA, SOC 2, and other regulations. - Provide traceability & auditing, so AI apps aren’t black boxes, and security teams stay in control. - Optimize for AI…
2025 · github.com · its alternatives →
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DFPM is a browser extension for detecting browser fingerprinting. - freethenation/DFPM
2018 · github.com · its alternatives →
- 18
Detect fake LLM APIs & reveal the real model underneath
Jun 2026 · apimaster.ai · its alternatives →
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Free mock api generator for developers | instant test data
Nov 2025 · fakeapifordevs.vercel.app · its alternatives →
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KeyProbe▲1Validate LLM API keys & see model access — free forever
Mar 2026 · shortcomponents4u.com · its alternatives →
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Byte▲8Your local AI model or API key in a customizable llm chatbox
Jul 2026 · get-byte.app · its alternatives →
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99.5% accurate visitor identification API for anti-fraud
2021 · fingerprint.com · its alternatives →
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Collaborative & scalable spam/phishing detection
Jan 2026 · guardian.mailuminati.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →