Best APIs of March 2026

1. 1

   1. Anything API

   645 upvotes

   Any website. We deliver the API.

   Many websites don't have public APIs. Anything API fills that gap. Turn any browser work into a production-ready API. Describe the task, and our agents build a custom function that calls the site directly. Ship a custom API endpoint you…

   #1 on March 4, 20264 makers
2. 2

   2. MiniMax M2.7

   378 upvotes

   Self-evolving AI model powering autonomous agents

   MiniMax M2.7 is a self-evolving AI model that helped build its own capabilities. It can create agent harnesses, collaborate via Agent Teams, and handle complex tasks like coding, debugging, and research. With strong SWE-Pro performance…

   #2 on March 19, 2026
3. 3

   3. Sheet Ninja

   340 upvotes

   Ship vibe-coded apps. Your data stays in Google Sheets.

   Sheet Ninja turns any Google Sheet into a live API in seconds. Your data already exists. Stop rebuilding it in clunky databases. Paste a link, get endpoints. Build with Lovable, Bolt, or Replit and your data stays in Sheets. Your clients…

   #3 on March 29, 2026sheetninja.io1 maker
4. 4

   4. Silicon Friendly

   328 upvotes

   How Silicon Friendly is your website? (from L0 to L5)

   Agents surf the internet more than we carbons do. They find interesting things and recommend them to their humans. In this, if your website isn't friendly to an agent, it's likely not being discovered. L0-L5 is an open standard for…

   #3 on March 22, 2026siliconfriendly.com1 maker
5. 5

   5. Gemini 3.1 Flash-Lite

   305 upvotes

   Best-in-class intelligence for your high-volume workloads

   Gemini 3.1 Flash-Lite is the fastest and most cost-efficient model in the Gemini 3 series. At only $0.25 input and $1.50 output per million tokens, it beats 2.5 Flash with 2.5X faster first token and 45% higher output speed while matching…

   #4 on March 4, 20261 maker
6. 6

   6. GPT‑5.4 mini and nano

   265 upvotes

   Fast and efficient models optimized for coding and subagents

   GPT-5.4 brings powerful reasoning, coding, and agentic workflows into one frontier model, now live in ChatGPT, API, and Codex. With GPT-5.4 mini (2x faster) and nano (lowest cost), build responsive AI systems for coding, subagents, and…

   #5 on March 18, 20261 maker
7. 7

   7. Context.dev

   264 upvotes

   One API to scrape, enrich, and understand the web.

   Context.dev (previously Brand.dev) gives your AI agents and apps real-time access to structured web data, no brittle scraping infrastructure needed. Scrape any URL as clean markdown or HTML, extract brand data (logos, colors, fonts…

   #4 on March 22, 2026YC S26
8. 8

   8. Perplexity API Platform

   203 upvotes

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

   Perplexity's API now covers the full agent stack: multi-provider model access, real-time search on 200B+ URLs, and SOTA embeddings. One key, one bill, direct provider pricing. Built for developers who are tired of stitching together five…

   #5 on March 31, 2026
9. 9

   9. Mailercloud Email API Platform

   165 upvotes

   1,000+ Emails per Second with 99%+ Deliverability

   Mailercloud Email API helps developers send transactional and marketing emails at scale with 1,000+ emails per second throughput and 99%+ deliverability. Built for SaaS platforms, fintech apps, and growing businesses, it offers real-time…

   #8 on March 3, 20261 maker
10. 10

    10. Ollang DX

    163 upvotes

    The AI Language Execution Layer for Enterprise

    Ollang is the AI language execution layer for localization across web, apps, video, audio, and documents. Use MCP to let AI agents run workflows, SKILLS for reusable agent actions, the SDK to scan and apply translations, and the API to…

    #8 on March 30, 20261 maker
11. 11

    11. Triqai

    149 upvotes

    Turn messy bank transactions into clean, structured data

    Raw bank transaction strings are a mess. "SQ VERVE", "AMZN MKTP USAB1234", "PP*SHOPIFY", nobody knows what these mean, and neither do your users. Triqai is a transaction enrichment API that transforms raw banking data into clean…

    #27 on March 26, 2026triqai.com1 maker, 1 with an email
12. 12

    12. Qwen3.5-Omni

    135 upvotes

    A native omni model for voice, video, and tools

    Qwen3.5-Omni is Qwen"s new native omni model for text, images, audio, and video, with stronger multilingual speech, realtime voice interaction, web search, function calling, voice cloning, and long-context audio/video understanding.

    #10 on March 31, 20261 maker
13. 13

    13. OpenAI WebSocket Mode for Responses API

    129 upvotes

    Persistent AI agents. Up to 40% faster.

    Every agent turn, you're resending the full context. Again. That overhead compounds fast. WebSocket Mode for the Responses API keeps a persistent connection, sends only incremental inputs, and cuts end-to-end latency by up to 40% on heavy…

    #6 on March 1, 20261 maker
14. 14

    14. Octrafic

    128 upvotes

    Test your APIs in plain English, straight from the terminal

    Octrafic is an open-source CLI for API testing. Point it at any OpenAPI spec or live endpoint, describe what you want to test in plain English, and let it handle the rest - from generating requests to validating responses and exporting a…

    #8 on March 1, 20261 maker
15. 15

    15. Luzo

    122 upvotes

    Design and debug API workflows visually

    Luzo is a desktop-first, open-source tool for building, running, and debugging multi-step API workflows. Instead of treating requests as isolated calls, it lets you design dependency-aware flows, pass variables between steps, inspect…

    #31 on March 26, 20261 maker
16. 16

    16. Clawcard

    118 upvotes

    Give your agent a card, email and phone in one command

    Clawcard is the first unified credential system for agents - one key provisions and manages credit cards, email, and a phone number. No cobbling together multiple services. No babysitting your agent through verification steps. When your…

    #17 on March 12, 2026clawcard.ai1 maker
17. 17

    17. Flux

    105 upvotes

    Fix production bugs by replaying them locally

    Flux records API executions so you can replay failures locally, fix them, and resume execution safely. Instead of guessing from logs, you get the exact request, inputs, and behavior. Same request. Same IO. Same outcome.

    #14 on March 24, 20261 maker
18. 18

    18. Didit v3

    102 upvotes

    One platform for KYC, biometrics & fraud. 70% lower costs.

    Didit replaces fragmented identity tools with one platform. KYC, biometrics, liveness, and fraud detection orchestrated together — one source of truth, fewer manual reviews, faster onboarding. Works globally across devices and low…

    #17 on March 2, 20261 maker
19. 19

    19. Inspekt

    98 upvotes

    AI-powered API proxy for automated debugging and security

    Inspekt is a TypeScript-native proxy that diagnoses API errors in real-time. Instead of just returning raw data, it uses AI to analyze headers, status codes, and bodies to provide actionable fixes for 4xx/5xx errors

    #36 on March 26, 20261 maker
20. 20

    20. Easy App Reports

    94 upvotes

    Bring your app's data to Looker Studio, BigQuery, or AI

    App teams waste hours every week manually exporting CSVs from App Store Connect, Google Play, Apple Ads, and Google Ads just to build reports. Easy App Reports fixes that. Connect your developer accounts in minutes, and your data flows…

    #22 on March 17, 2026easyappreports.com1 maker, 1 with an email
21. 21

    21. Decoy

    93 upvotes

    Local server mocks in macOS, all in a lightweight native app

    Decoy lets developers create mock services locally. No need for Docker or heavy Electron apps. I built it to test webhook requests coming from my own applications, testing my API wrappers and seeing how my app reacts to redirects…

    #23 on March 10, 20261 maker
22. 22

    22. FireAPI

    92 upvotes

    Discover, consume, and monetize APIs in one place

    Discover, build, and monetize APIs & App/Tools with FireAPI. Access thousands of APIs, create custom scraping solutions, manage API analytics, and monetize your APIs with flexible pricing. Perfect for startups, SaaS, and enterprises.

    #19 on March 31, 2026fireapi.io1 maker, 1 with an email
23. 23

    23. MiMo-V2-Pro & Omni

    87 upvotes

    Xiaomi's flagship agentic and omni-modal foundation models

    MiMo-V2-Pro and MiMo-V2-Omni are Xiaomi’s new agent foundation models. Pro is built for long-chain coding, tool use, and OpenClaw-style workflows, while Omni adds vision and audio to push the same agentic stack into the real world.

    #22 on March 19, 2026
24. 24

    24. Mockphine

    87 upvotes

    Mock blocked APIs, passthrough ready routes, see live source

    Mockphine keeps frontend and QA moving when backends are unstable. It lets teams mock blocked endpoints, pass through ready ones, and prove exactly what served each response; control unmatched routes with strict 404 or fallback…

    #25 on March 13, 2026mockphine.com1 maker, 1 with an email
25. 25

    25. Benchspan

    85 upvotes

    Run agent benchmarks in minutes, not hours

    BenchSpan is a benchmarking platform for AI agents. Running benchmarks is slow, expensive, and fragile. We fix that. Onboard your agent once (we onboarded Claude Code in 37 lines), run any benchmark in parallel in the cloud, and get every…

    #24 on March 27, 2026benchspan.com1 maker

Junior imports every day's Product Hunt leaderboard. Each launch is filed under the first topic its makers chose, so it appears in one category only. This list takes the API launches dated in March 2026 and ranks them by their upvotes. It refreshes daily.

• Best Productivity Tools290
• Best Design Tools69
• Best Open Source Tools77
• Best Developer Tools81
• Best Mac Apps29
• Best Android Apps33
• Best Marketing Tools47
• Best AI Tools60
• Best SaaS Tools45
• Best iOS Apps36
• Best Chrome Extensions34
• Best Analytics Tools21
• Best Health & Fitness Apps22
• Best Social Media Tools21
• Best Sales Tools19
• Best Fintech Tools29

• All APIs340
• Every launch in March 2026
• All best-of lists

What was the top API launch of March 2026?

Anything API ("Any website. We deliver the API."), with 645 upvotes on March 4, 2026, where it finished #1 of the day.

How many APIs launched in March 2026?

40 on Product Hunt, with 5,021 upvotes between them. This list shows the 25 most upvoted.

How is this list ranked?

By Product Hunt upvotes, as recorded on launch day. Ties go to the launch with the better daily rank. Every launch is counted once, in the category its makers listed first.

How do I reach the makers of these APIs?

Each launch links to its page on Junior, with the people behind it (24 makers across this list). Junior adds their verified work emails, LinkedIn and X profiles for subscribers.