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Dev tools · alternatives · 2026

24 alternatives to Limitly

Authentication for your API

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Power your products with web-wide research, Q&A capabilities

    Mar 2026 · docs.perplexity.ai · its alternatives →

  2. 2

    Hide your API key from your front end

    2021 · its alternatives →

  3. 3

    Auth for any app. Get every feature. Deploy everywhere.

    2018 · fusionauth.io · its alternatives →

  4. 4

    Securely connect your front-end web app to APIs, in minutes

    2021 · its alternatives →

  5. 5
    KeyRunner▲104

    The zero trust API client

    2024 · keyrunner.app · its alternatives →

  6. 6

    The easiest 3rd-party sign-in for your apps and APIs

    2020 · its alternatives →

  7. 7
    Warrant▲134

    APIs for authorization and access control

    2021 · warrant.dev · its alternatives →

  8. 8

    Privacy-first experiments & feature flags in any language

    2020 · its alternatives →

  9. 9

    Flexible auth for B2B products

    2023 · propelauth.com · its alternatives →

  10. 10
    Authentiq▲157

    Strong authentication, without the passwords

    2017 · its alternatives →

  11. 11
    Rately▲175

    Take control of your API traffic with custom rate limits.

    2025 · its alternatives →

  12. 12

    One identity layer for your customers, APIs, and agents

    Jul 2026 · monocloud.com · its alternatives →

  13. 13

    Walletless and passwordless auth solution for Web3

    2023 · its alternatives →

  14. 14

    A SDK for access control policies: authorization for the microservice and IoT age. Inspired by AWS IAM policies. Written for Go. - ory/ladon

    2017 · github.com · its alternatives →

  15. 15

    Termly is your all-in-one compliance solution for data privacy laws worldwide. Privacy policy generator, cookie consent, terms, and more.

    2018 · termly.io · its alternatives →

  16. 16

    GDPR Compliance Solution for Small Business

    2021 · termly.io · its alternatives →

  17. 17

    G’day Hacker News, I’m Simon Gurcke, the sole founder of Apitally (https://apitally.io). I’m building a simple API monitoring and analytics tool for Python / Node.js apps. It helps users understand API usage and performance, spot issues early and troubleshoot effectively when something goes wrong. Features include: - Dashboards: Provide insights into API traffic, errors, performance and consumers. - Request logging: Opt-in and highly configurable in terms of what data is logged. Users can drill down from aggregated metrics to individual requests (proven to be super helpful…

    2023 · apitally.io · its alternatives →

  18. 18

    APIs and SDKs to integrate authentication and security into your app.

    2021 · stytch.com · its alternatives →

  19. 19

    Is your WordPress REST-API secure?

    2025 · its alternatives →

  20. 20OA

    Hey HN, we’ve been working on a way to simplify authentication with third-party APIs. This started because my co-founder andreterron (https://news.ycombinator.com/user?id=andreterron) and I both built personal dashboards to track different health and productivity metrics, but it’s such an annoying chore to integrate with new APIs. First you read their docs to learn their authentication method, then build and deploy a custom server to receive OAuth callback requests or deal with CORS, register an app with them, then finally you can send the first request to their API. After the…

    2023 · oneapikey.com · its alternatives →

  21. 21

    Encryption As A Service because privacy matters for everyone

    2020 · its alternatives →

  22. 22

    Hi HN! We love the "backend-less" stack: Stripe for payments, Supabase for data, Clerk for auth. But the moment we add AI features, we're forced to spin up a backend to hide API keys, implement per-user token-based rate limits and graceful degradation, etc. So we built Airbolt. What it does: Drop in our SDK and start making OpenAI calls directly from your frontend. Your keys are AES-256-GCM encrypted on our servers, never exposed to the client. We provide token-based per-user rate limits and origin allow lists to address inference abuse. Short-lived JWTs and bring-your-own-auth are coming…

    2025 · airbolt.ai · its alternatives →

  23. 23

    Your API key locker

    2024 · its alternatives →

  24. 24

    Managed auth and 10,000+ tools across 3,000+ APIs for the agents you’re building — and a secure gateway for the AI tools your company uses.

    2012 · apiaxle.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 →