Discover 109 developer tools product launches on What Launched Today — a curated feed of new startups, SaaS tools, and indie projects in Developer Tools. Unlike a static software list, every entry links to a full launch page with screenshots, founder details, community reviews, and launch-day performance data. Use this page to spot emerging developer tools tools before they hit mainstream directories.
Prompt2Prod is ai-generated & vibe coded projects made production ready. <p><a target="_blank" rel="noopener noreferrer nofollow" href="http://Prompt2Prod.AI">Prompt2Prod.AI</a> specializes in rescuing, auditing, and hardening AI-generated and vibe coded software projects. While AI tools like Cursor, Copilot, and ChatGPT help you build prototypes fast, the resulting code is often fragile, insecure, and lacks scalable architecture. We bridge the gap between a fragile AI MVP and a reliable, real-world product.</p><p></p><p>Led by senior engineers, our services include comprehensive security audits (OWASP aligned), performance optimization, scalable architecture reviews, and technical debt remediation. We fix security holes, resolve slow APIs, untangle unmaintainable code, and add necessary testing and documentation. Instead of costly and unnecessary complete rewrites, we preserve what works and harden what doesn't, leaving your team with a secure, performant codebase that you can confidently launch and maintain.</p>. Best for AI Code Rescue and Vibe Coding users.
MindCradle is the missing memory layer for ai. <p><strong>What if your AI actually remembered you?</strong></p><p>I'm launching <strong>MindCradle</strong> because I believe AI should remember the people it helps. Every day, millions of students, founders, creators, professionals, and curious minds rely on AI to learn, build, and solve problems. Yet every new conversation starts from scratch, forcing them to repeat the same context, goals, and ideas over and over again. That constant repetition wastes time and interrupts progress.</p><p>MindCradle is built to change that. It remembers what matters so your conversations can continue naturally instead of resetting every time. My goal isn't to launch just another AI product. It's to create something genuinely useful for people who depend on AI every day and need a companion that grows with them, understands their journey, and helps them move forward with less friction.</p><p><strong>What MindCradle offers:</strong></p><p>• Remembers important conversations and context</p><p>• Keeps track of projects, ideas, and long term goals</p><p>• Organizes your thoughts and personal knowledge</p><p>• Connects past conversations to make future conversations more meaningful</p><p>• Helps students, founders, creators, professionals, and lifelong learners stay productive</p><p>• Learns your preferences over time to provide more relevant support</p><p>• Creates an AI experience that becomes more valuable the more you use it</p><p>I'm excited to launch MindCradle, learn from the Product Hunt community, and build it together with the people it's designed to serve.</p>. Best for Artificial Intelligence and AI Assistant users.
The list below shows Developer Tools launches from the past 12 months, sorted by launch date. Premium and highlighted launches are marked for visibility.
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Sendmux is email inbox and sending api for ai agents. <h1>Sendmux: Email API for Products and AI Agents</h1><p>Sendmux is one workspace and API to send, receive, route, and monitor email, built for modern products and AI agents. Most email services stop at sending. Sendmux gives your application or agent a real inbox that can send mail, receive it, hold it, reply, and search across threads, all through a single API and one dashboard.</p><p>If you have ever wired up one provider for outbound email and a second, clunkier setup for inbound, you know the pain. Sendmux puts sending and receiving in the same place, adds delivery monitoring on top, and treats AI agents as first-class users instead of an afterthought.</p><h2>What Sendmux does</h2><p>At its core, Sendmux is an email infrastructure platform with three surfaces: a Sending API for transactional email, a Mailbox API for reading and replying to inbound mail, and a Management API for domains, mailboxes, webhooks, logs, and billing. You can use one, two, or all three.</p><p>Send single or batch transactional email over a simple REST API. Spin up real mailboxes on your own verified domain or on the shared <code>myagent.mx</code> domain for quick tests. Read, triage, reply to, and sync inbound messages. Then watch every send land in a searchable delivery log you can export to CSV.</p><h2>Built for AI agents</h2><p>This is where Sendmux is different from a typical transactional email API. AI agents can have their own email on Sendmux, with a human kept firmly in the loop.</p><p>An agent can self-register for its own constrained mailbox through a challenge-first flow, then invite you, the owner, to approve it. Until you approve, the agent can read and receive mail but cannot send a single message. Human approval is the default, not a bolt-on setting. So you can hand an autonomous agent a real email address without handing over your domain's sending reputation.</p><p>For teams building with LLMs, this solves a real problem. An agent that can email customers, read the replies, and act on them is far more useful than one that can only fire off a message into the void. And because sending stays gated behind owner approval, you get that capability without the risk of an agent going rogue in your customers' inboxes.</p><h3>Agent access and approval flow</h3><p>The flow is designed to be safe by default. An agent discovers the protected resource, solves a proof-of-work challenge, and registers for an anonymous identity with a constrained mailbox. It saves its credential bundle, invites its human owner, and waits. Once you approve sending from the Agent access card on your team page, the agent can exchange its claim token for a sending-capable token. Before that, it simply cannot send.</p><h2>Key features</h2><p>Sendmux ships with the pieces you need to run email in production. Transactional sending covers single and batch email through the Sending API. Real mailboxes live on your verified sending and receiving domains, or on the shared <code>myagent.mx</code> domain when you just want to test something in two minutes. Full inbox access lets your code read, triage, reply, and keep messages in sync.</p><p>On the operations side, delivery logs and email metrics are searchable and exportable to CSV, so you can see sender, recipient, status, provider, attempts, and timestamps for every message. Signed webhooks push delivery and inbound events to a URL you control, with signature verification so you can trust what you process. API keys are scoped separately for sending, mailbox, and management work, which keeps a send-only key from ever touching account settings.</p><p>Each team starts with fifty active mailboxes, which is enough to give many agents or product features their own address.</p><h2>How you connect</h2><p>Sendmux meets you where you already work. There is a hosted MCP (Model Context Protocol) server with OAuth, so AI tools and agent frameworks can connect without you distributing raw API keys. There is a command-line interface for terminal workflows. And there are official SDKs for Python, Go, Ruby, PHP, and TypeScript, plus a plain REST API if you prefer to call it directly.</p><p>The hosted MCP option is worth calling out for anyone building agents. It keeps Sendmux in the authorization flow, uses short-lived tokens, and only exposes the tools allowed by the grant. That means an agent gets exactly the email access you intend and nothing more.</p><h2>Use cases</h2><p>Developers reach for Sendmux when they want transactional sending and a programmable inbox in one API, instead of stitching two vendors together. Product teams use it to send onboarding email, receive replies, and route inbound messages back into the app. Teams building AI agents use it to give each agent its own email address for outreach, support, scheduling, and follow-up, with owner approval guarding every send.</p><p>It also fits internal tooling, notification systems, customer support automation, and any workflow where a machine needs to both send and read email rather than just push it out.</p><h2>Why Sendmux over a send-only email API</h2><p>Traditional transactional email APIs are excellent at delivery and stop there. If your product needs to read replies, hold conversations, or let an agent act on what came back, you end up bolting on a separate inbound service and gluing the two together. Sendmux removes that seam. Sending, receiving, routing, and monitoring share one workspace, one set of scoped keys, and one delivery log.</p><p>For AI use cases specifically, the owner-approval model is the real draw. You get the upside of an agent with its own inbox and the safety of a human signing off before anything leaves the building.</p><h2>Frequently asked questions</h2><p><strong>Can Sendmux receive email, not just send it?</strong> Yes. Every mailbox can send and receive, hold messages, and be read or replied to through the Mailbox API.</p><p><strong>Is Sendmux good for AI agents?</strong> That is the core use case. Agents can self-register for a constrained mailbox and only send after a human owner approves them.</p><p><strong>What languages and tools are supported?</strong> A REST API, a CLI, a hosted MCP server with OAuth, and SDKs for Python, Go, Ruby, PHP, and TypeScript.</p><p><strong>Do I need my own domain?</strong> You can use a verified custom domain for production, or the shared <code>myagent.mx</code> domain to test in minutes.</p><p><strong>How do I monitor deliveries?</strong> Searchable delivery logs, exportable metrics, and signed webhooks for delivery and inbound events.</p><p>Give an agent its own inbox, keep a human in the loop on every send, and see exactly what went out. That is Sendmux.</p>. Best for email and api users.
RouterBase is one api for gpt, claude, gemini & 200+ ai models. <p><a target="_blank" rel="noopener noreferrer nofollow" href="https://routerbase.com">RouterBase</a> is an AI API gateway that routes to 200+ models from OpenAI, Anthropic, Google, Meta and more through a single OpenAI-compatible endpoint. Instead of maintaining a separate SDK, API key, and billing relationship for each provider, developers integrate once and switch between models with a single configuration change — no code rewrites required.</p><p>It's built around three ideas. First, every model is served through official provider endpoints or officially resold channels, so you always get the genuine model rather than a throttled or degraded version. Second, smart routing with automatic failover keeps applications running: if one provider errors or times out, requests fail over to an alternative instead of failing outright. Third, unified billing consolidates spend across every provider into one balance and one invoice, with usage analytics by model, key, and project.</p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://routerbase.com">RouterBase</a> supports streaming, tool calling, vision inputs, JSON mode, and prompt caching, with SDKs for Python, Node.js, Go, and Ruby. A built-in playground lets teams test and compare models before deploying. On most models, routing through RouterBase costs less than comparable aggregators, and a free tier is available to evaluate the platform.</p>. Best for AI and LLM users.
Speech is Cheap is fast, accurate transcription api for high-volume audio. <p>Speech is Cheap is an automatic speech-to-text API built for businesses that need to process large volumes of audio without slow turnaround or unpredictable costs. It supports 100 languages, averages below 8% word error rate on English, and can transcribe 100 minutes of audio in one minute. Teams can integrate the API into production workflows and choose pay-as-you-go or subscription pricing.</p>. Best for speech-to-text and transcription users.
Javinfo is one api for jav metadata. every source, one schema.. <p><strong>javinfo</strong> is a developer API for <strong>JAV</strong> metadata. POST a DVD ID to <strong>/movie</strong> and you get the single best match. Hit <strong>/query</strong> and you get a list. Either way, <strong>javinfo</strong> checks the providers (DMM/FANZA, JavDB, and others) in priority order and hands back the first valid result in one shape.</p><p><em>It's metadata, not media. Title, cast, studio, label, series, covers, runtime, release date, in English and Japanese. You read result, the same way no matter which source answered.</em></p><p>Everything is API-first. One key from the app, no OAuth. There's an OpenAPI spec, a RapidAPI listing, <strong>llms.txt</strong> for discovery, and an MCP server (<strong>npx @javinfo/mcp</strong>) so an agent can call it as native tools. Start on a free credit, pay per lookup, manage keys in the app.</p><p>People use it to enrich media libraries, back a search box that treats SSIS-001 and ssis001 as the same release, build clean datasets, or give an LLM a lookup it can trust.</p>. Best for ai and developer tool users.
LeakData.io is find leaked credentials before attackers do.. <p>LeakData.io monitors authorized emails, domains, usernames, and credentials across breach and dark-web datasets so individuals and security teams can identify exposure before attackers use it. It provides rapid alerts and downloadable risk reports, plus REST API access, signed webhooks, SIEM/SOAR workflows, and privacy-preserving k-anonymity checks. Coverage includes more than 15 billion records across 1,300+ datasets.</p>. Best for cybersecurity and breach monitoring users.
CodeUtilityKit is 100+ private developer tools that run in your browser. <p>CodeUtilityKit is a free collection of browser-based developer tools for everyday coding, formatting, conversion, debugging, and productivity tasks. It includes tools like JSON Formatter, JWT Decoder, Base64 Encoder/Decoder, SHA256 Generator, CSV to JSON, JSON to CSV, Password Generator, UUID Generator, Regex Tester, QR Code Generator, Timestamp Converter, and many more. Everything runs locally in your browser, so your code, tokens, API keys, passwords, and files stay on your device.</p>. Best for productivity and developer tools users.
LifeVault: Life Organized is the private family organizer that fills in your records for. <p>Stop typing out your family's paperwork. LifeVault is a private family organizer that scans your documents into records for you.</p><p></p><p>Create a profile for everyone you care for: kids, aging parents, pets, and your home. Each holds the records that fit it: IDs, medical, insurance, prescriptions, school, and legal. Scan a driver's license, passport, or insurance card and LifeVault reads the fields and files the original in your Document Vault.</p><p></p><p>Caring for someone? Check "Add to Timeline" on records like medications and procedures, and add hospital stays or cognitive changes in the History section. You get a medical history to hand a doctor.</p><p></p><p>When it counts, at the ER, a new sitter, or the vet, export a whole profile as one PDF, or share only what you pick. Expiration dates become reminders, so passports and policies don't lapse.</p><p></p><p>It stays private by design: on your device, no account, no cloud, Face ID, encrypted backups. It's free during launch, and your data always stays yours.</p>. Best for pet records and household organizer users.
