117 products
Developer tools apps
Everything the AppRater community filed under developer tools, newest first. AppRater reviews every listing before it appears.
MailVeri
Web
MailVeri
MailVeri verifies emails in bulk or via API so outbound teams stop wasting sends on bad addresses. Pay only for what you use - credits never expire (no monthly burn). Get 1,000 free credits with no credit card. Supports single and bulk verification with clear deliverability statuses. Ideal for cold email agencies, SDR teams, and founders cleaning lists before sequences.
Modellix
Web
Modellix
Modellix is a unified AI model API platform that aggregates the world's leading generative models — including Google Veo 3.1, GPT Image, Grok Imagine, Seedream 5.0, Seedance 2.0, Kling V3, Wan 2.7, Hailuo 2.3, Vidu Q3, PixVerse V6, and more — into a single API key and billing dashboard. Developers integrate once and access all models without multi-vendor management. Creators test models directly in browser Playground, no code required. The same key also opens the Modellix LLM gateway, with OpenAI- and Anthropic-compatible access to language models from OpenAI, Anthropic, Google, DeepSeek, Qwen, Moonshot, xAI, and ZAI. Backed by Aurora Mobile (NASDAQ: JG) with SOC 2 Type 2, ISO 27001, and ISO 27701 certifications and 15+ years of developer infrastructure experience. Key Features - One API Key for Everything — One key covers both media generation and the LLM gateway; every media model shares the same flat request structure, so adding or switching models needs no integration rewrite - LLM Gateway — Call OpenAI, Anthropic, Google, DeepSeek, Qwen, Moonshot, xAI, and ZAI language models over OpenAI- and Anthropic-compatible endpoints; Cursor, Claude Code, Codex, and standard SDKs connect with a base URL override - Browser Playground — Full-featured playground on every model page; test, compare, and generate without code - AI Prompt Optimizer — Built-in tool that refines and expands prompts for better generation results - Transparent Pay-As-You-Go Pricing — Every model's price visible before you call; no subscriptions, no hidden fees - Complete Call Logs — Every request traceable: inputs, outputs, and cost per call for debugging and billing - Agent Skill & CLI — Integrate into AI agents, low-code workflows, or automate from the terminal - Enterprise-Grade Reliability — SOC 2 Type 2, ISO 27001 & ISO 27701 certified; backed by Aurora Mobile (NASDAQ: JG)
Mailyond
Web
Mailyond
One inbox for every domain you own. Read and answer mail for all your domains in one place; send from your app with one API key. Centralize domain email without juggling multiple mailboxes.
Omniyond
Web
Omniyond
The pay-per-use API toolbox for AI apps. Scheduling, scraping, PDFs, and more from $0.01 a call. Build AI workflows without monthly SaaS bloat.
Trylle
Web
Trylle
Trylle is an AI-powered Git platform where humans and agents ship together. It combines Git repos, PRs, Issues, CI, AI reviews, security audits, automations, and cloud agents for developers.
Jagent
Web
Jagent
Jagent helps you evaluate writing against clear criteria. Grade essays, check a resume against a job description, build editable rubrics, or export a batch of essay scores to CSV. Developers can try structured evaluations in a playground and connect via REST or MCP. Its independent Jev gateway uses Jagent keys and endpoints without first requiring official TypeSafe access. Limited free credits and paid credits are available; Jagent is not affiliated with TypeSafe AI.
kimik3
Web
kimik3
kimik3 is an independent, unofficial guide and playground for the Kimi K3 model. It offers a free chat trial (first message, no signup), copy-ready Curl and SDK code examples, a prompt cheat sheet, and tutorials covering the 1M-token context window. Pricing is credit-based (Lite $19/mo, Plus $39/mo, Pro $99/mo), positioned as an economical frontier-reasoning alternative for developers, researchers, and founders.
Vidily
Web
Vidily
Vidily is an independent comparison site for AI video, image, and audio APIs. Compare the same model across providers with duration, resolution, audio settings, billing units, public prices, and original source links kept visible. It helps developers and teams research provider costs before choosing an API.
HaveTML
Web
HaveTML
HaveTML is a home for AI artifacts. It is infrastructure for AI-generated artifacts (HTML, Markdown, YAML, JSON): permanent sandboxed share links, pinned comments, versions, projects, and access controls.
JevModel
Web
JevModel
Bilingual guide and browser workbench for TypeSafe's Jev decision model. Give it text or JSON and it returns a typed judgment your software can act on - one choice from a set you define, a score on a scale, or the probability that a statement is true. Ten editable workflow presets cover support routing, lead scoring, agent action gating and incident triage. Five free runs per UTC day plus a one-time 100K token grant.
R2Client
windows
R2Client
R2Client is a native desktop client for Cloudflare R2 object storage. Browse buckets like folders, drag-and-drop upload and download, generate share links — no CLI needed. Free trial available. For Windows and macOS.
HOL Guard
Web
HOL Guard
HOL Guard is an open-source (Apache-2.0) runtime layer for AI coding agents. It intercepts tool use (shell, secrets, MCP, installs) on your machine instead of trusting the model. Install with: pipx install hol-guard && hol-guard init. Scan is not a safety guarantee. Maker: HOL. Tagline: Local runtime security for AI coding agents.
Tessera
Web
Tessera
Tessera lets teams preview and monitor how a web app appears across desktop, tablet, and mobile screens, so responsive changes are easy to review live.
Codex Reset Radar
Web
Codex Reset Radar
Codex Reset Radar is a web dashboard for developers who use Codex every day. It shows how much of the current usage allowance is left, when the next reset window begins, and whether the window is a direct reset or a banked rollover. It records a dated reset history for every past window with start time, end time, consumption and reset type, and it collects public Codex reset announcements so an unusual reading can be matched with an official note. Everything runs in the browser with nothing to install, and the main use is scheduling heavy refactors and batch runs against real reset windows instead of guessing.
ExtWise
Web
ExtWise
ExtWise is a Chrome extension intelligence platform to search, compare, and analyze 281K+ extensions with AI, covering reviews, competitors, permissions, and security.
Aident Loadout
Web
Aident Loadout
Aident Loadout connects Codex, Claude Code, Cursor, ChatGPT and other MCP clients to 1,000+ apps and 400+ expert-built Skills through one setup. You connect accounts once and reuse them across agents. Credentials stay in Aident Vault, every action is logged in Audit, and built-in services run on one balance.
Usenotix
Web · 2 recommendations
Usenotix
useNotix is a messaging platform for teams in payments, commerce and SaaS. Send receipts, password resets, magic links and marketing email from one API or SMTP relay, and see every send, delivery and bounce in one log
RouterPlex
Web
RouterPlex
RouterPlex is a hosted API gateway. One prepaid key speaks the OpenAI format at api.routerplex.com/v1 and the Anthropic format at api.routerplex.com. The public catalog lists 61 models. Token prices match the vendor list price, with a stated 0% markup and a $0 top-up fee. The prepaid balance stops at $0, and each key can carry a hard spend limit. Pay as you go from $5. That credit does not expire, and pay-as-you-go does not require a subscription.
AZN8
Web
AZN8
AZN8 is a free public directory for AI agents and makers. It provides machine-readable docs and an agent API so builders can register and submit SaaS and startup tools over JSON, while humans can browse the listings for discovery.
Jev Model
Web
Jev Model
Jev Model is a System One decision model for developers. It accepts shared state as text, JSON objects, or arrays of text and answers up to eight Choice, Score, or Noul questions in parallel, returning structured outputs with probabilities that applications can use for classification, routing, scoring, guardrails, and human-review workflows. The website provides a free unlimited online playground, documentation, API access, and paid access plans.
Roblox AI Game Maker
Web
Roblox AI Game Maker
LevelShaper is a Roblox AI game maker. Describe an obby, tycoon or simulator in one sentence and get a playable Roblox place (.rbxlx) with map, checkpoints, shops, saving and Luau scripts that opens in Roblox Studio. Also: 3D browser preview, AI Roblox thumbnails/icons/GFX and a free Roblox script generator. First game free.
Best Jev AI
Web
Best Jev AI
Best Jev AI is an independent playground and API gateway for Jev. Test typed Choice, Score, and Noul questions, then use structured results, probabilities, and confidence signals to classify, score, route, prioritize, or flag workflows for human review. The playground is free with unlimited runs; one-time API credit plans start at $10.
JevTypeSafe
Web
JevTypeSafe
Playground for Jev and Laya System One models to classify text, route intents, score inputs, and test LLM guardrails with structured judgments.
ZTABS JSON Formatter & Validator
Web
ZTABS JSON Formatter & Validator
A free browser-based JSON formatter, minifier and validator for developers. Paste JSON to indent it for readability, compact it for transport, or identify syntax errors with approximate line numbers. It works without an account and processes input in the browser.