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Developer Tools & APIs

Tools built for developers: APIs, SDKs, CLIs, open-source projects, coding assistants and infrastructure. 95 listings, newest first. Building one yourself? Post it free.

Akii: SEO & AI Search Optimizer Audit sites, check links and plan content in Claude Code.
Domain Armor Public DNS, HTTPS and security-header checks with evidence and limits, not a safety certificate.
Propel-OS B2B real estate OS for developers and brokerages in Pakistan, UAE and Saudi Arabia: inventory, CRM, instalments, commissions.
MetaDuro Seasonality analysis, backtests and a public API for crypto, stocks and commodities.
Irmu Web data APIs for developers: scrape sites, render JS, screenshots and structured JSON with AI. REST API + MCP server.
GoAnyAPI One API Key for SEO & Google Ads Data APIs
TOOLMINTHUB Free online web tools — text, PDF, image, SEO, developer and calculator tools, no sign-up required.
Ohmbo AI hardware projects, from requirements to measured prototypes
PhotoCraft — photo-craft.online Free open-source Photoshop-comparable photo editor in your browser
Docklark Native SSH client for Apple Silicon Mac with tabs, splits, SFTP, and host monitoring. EN+ZH.
FlixySMS Turn your Android phone into an SMS gateway for campaigns, API sending, delivery tracking, and customer replies.
SiftingIO Real-time and historical market data for US stocks and ETFs, forex, commodities and crypto.
Naiza by Limaz AI fraud detection and AML screening API for Saudi fintech, hosted in-Kingdom.
The Network Tools 39 free DNS, email and domain tools: SPF, DKIM, DMARC, MX and blacklist checks. Runs in the browser, no account needed.
UncensoredLabs Uncensored AI models through one OpenAI-compatible API.
Craft Apps Guide Independent guides and a free app finder for open-source creative and office software.
OMOPHub Hosted API for the OHDSI OMOP vocabularies: search, map and resolve 11M+ medical concepts. No ATHENA downloads.
AUTOMATER.ai One menu bar app for all your AI coding agents: live status, waiting-on-you alerts and usage limits across providers.
AppShotMaker Free App Store and Google Play screenshot maker for indie developers.
APIMODELS APIMODELS: unified AI API — 150+ models via one key, OpenAI-compatible, up to 95% off official pricing.
Free Model One list of free AI models with quotas, IDs, and quick-start notes.
SVG to Lottie Converter Turn static SVG files into Lottie JSON in your browser
Token Tracker Local-first AI token and cost tracker for coding CLIs — counts tokens only, never prompts.
Lava MCP MCP server giving AI agents market-data tools and signals. 面向AI智能体的MCP数据服务
CraftSuite Free open-source Adobe & Office alternatives, one download hub
Offrun One Mac workspace for every coding agent you run
EU Company Verifier Instant VIES + company registry checks in your browser
HOL Guard HOL Guard: review risky AI coding agent tool calls (shell, secrets, MCP, installs) locally before they run. Free, open source.
Vectoree Give your coding agent a backend — models, auth, database and storage in one cloud.
MeetNewAI Find AI tools, AI games, and MCP servers by the job.
AI Rank Daily rankings for AI open source, models and apps
Best AI Video Spec-first directory of 45 AI video tools: compare clip length, resolution, watermark, free plan, license and API.
PhotoCraft — photo-craft.online Free open-source Photoshop-comparable photo editor in your browser
IPKit Free what-is-my-IP and IP lookup with geo/ASN/VPN signals, plus a JSON API via curl.
XCrawl Web data API for AI builders — scrape, crawl, map and search the live web into clean JSON or Markdown.
Peekly Free Open Graph and social link-preview checker — see how your link looks before you post. Made by Anthony Pan.
Monolith Maintainer: self-hosted docs, projects & databases. Development preview; CC BY-NC-SA 4.0. Mostly AI-built.
AIGoCode One API key to access multiple AI models.
BarberBook Self-hosted barbershop & salon booking app, no monthly fees
Google News Scraper with Full Article Text Search Google News and get full article text, not just headlines. Pay per result, no API key.
Jev Agent Jev Agent: typed Jev AI decisions (/decisions, eight classify rulesets, remote MCP). 5 free/mo. Not affiliated with TypeSafe AI.
Prompts That Ship 45 copy-paste prompts that keep Replit Agent and Lovable from inventing code
Inquir Compute Cloud platform for developers to deploy apps, databases and background jobs from a Dockerfile or container image.
YouTube Comments Scraper Pay-per-comment YouTube comments and replies as JSON from videos, playlists and channels.
YouTube Transcript Extractor Pay-per-result YouTube transcripts for videos, playlists and channels, with RAG-ready chunks. No API key.
Prmbr – Awesome Prompts Free open-source library of curated AI prompts for ChatGPT, GPT Image, Nano Banana and Sora.
CleanTempMail Free no-signup, receive-only public temp inboxes for non-sensitive app testing. Anyone with the address can read messages.
Claude Resets tracker Independent archive of Claude Code usage-limit resets announced by @ClaudeDevs — no predictions.
seogeoaeo.ai See how ready your site is for SEO, AEO & AI search, with prioritized tips.
Ployz The open-source cloud on servers you rent
Quantum Payouts Bulk payouts to individuals from a company’s own bank accounts via dashboard, 1C or API, for Russian businesses.
UsageAtlas Free open-source AI usage tracker for coding tools.
AppGuidelines Tracks Apple App Review Guidelines and related developer docs over time, with dated versions and full-text diffs.
Naiza by Limaz API-first fraud detection and AML screening for Saudi banks and fintechs
SkaleAgents Control plane for AI DevOps agents.
ScrapeAtlas Unified scraper API for every social platform — public profiles, posts, videos and conversations via one social media data API.
AICost Independent LLM API price desk: compare model pricing across OpenAI, Anthropic, Google and more.
Invokely Official statistics for AI agents via MCP and REST, with periods, places, and citable sources.
nopaywall Free catalog of AI free tiers, API rate limits, and paid-tool alternatives — caps + check dates.
Toolblip Free online developer tools. JSON, Base64, QR, word counter, and 490+ more. No signup. Runs in your browser.
BrowseSprint Research waitlist for faster Codex browser workflows. Share bottlenecks and join future tests; no plugin available yet.
CPFHub.io Brazilian CPF lookup API with an MCP server for AI agents. Free plan with 50 credits per month.
PLOTT. 3D city and facade editor. Full V1 code and branding for sale, pre-revenue. Contact to make an offer. Next.js and Three.js.
NodeLane Comics Open-source comic reader with optional AI manga translation. Read CBZ, CBR, PDF and EPUB; compare originals and translations.
Monytra Free uptime monitoring for agencies. Monytra monitors websites and APIs and alerts you when they go down.
Code Mods Hub A curated directory of Claude Code mods, skills, plugins and MCP servers for developers.
BDS Next.js Appointment Booking Platform Next.js + Supabase appointment-booking source code: booking site, booking flow and admin. $99 one-time, self-hosted.
APIClaw Flat-rate OpenAI-compatible /v1 gateway for coding agents — $19–$129/mo, 50 free trial requests.
ADAFix Scan public website pages for accessibility barriers, review approved repairs, and monitor regressions.
AI 만화 번역기 Ficory LLC의 기업용 만화 리더 AI 만화 번역기는 모든 번역 언어로 개인 일괄·맞춤 번역을 지원하고, 스튜디오에 완전한 온라인 Photoshop 편집기를 제공하며, API를 개인 워크플로에 연결합니다.
CloudPloy Deploy anywhere from your AI tool. Your agent deploys from Claude Code, Cursor, or any MCP client. Free forever: 1 server, 1 app
Crontinel Laravel schedule and queue monitoring. Catch silent cron and queue failures early.
ToolSphare Free online toolbox with 655 tools for PDF, image, and developer work. No signup.
HOL Plugins Ranked AI plugin catalog across Claude, Codex, Cursor, and MCP, with trust signals and install guidance. Free.
Hourtick Time tracking + tasks + team chat for humans and AI agents (MCP)
ZentraFoundry Google Patents Page Snapshot Our paid Google Patents page snapshot; no USPTO bulk. https://apify.com/zentrafoundry/uspto-trademark-patent-watcher
TikTok Shop Product Scraper TikTok Shop US prices; sold counts are not GMV. https://apify.com/zentrafoundry/tiktok-shop-product-intelligence-api
AI Cost Leak Triage Fixed download: samples and schema. https://zentrafoundry.gumroad.com/l/ai-cost-leak-triage-agent
API Response Snapshot Diff Tool Offline JSON snapshot diff kit. https://zentrafoundry.gumroad.com/l/api-response-snapshot-diff-tool
OSV lodash Advisory Snapshot Snapshots public OSV lodash advisories; no patches. https://apify.com/zentrafoundry/actor-repair-bench-v2
OWASP LLM Top 10 Snapshot Copies public OWASP LLM Top 10 2025 headings and source URLs. No live model attacks or pentest.
OpenAI Status Snapshot OpenAI Status component snapshot via public API. Find it here: https://apify.com/zentrafoundry/zentra-agent-synthetic-monitor
npm Package Dependency Snapshot npm apify dependency names, not a CVE audit. Buy: https://apify.com/zentrafoundry/zentra-actor-supply-chain-inspector
Apify Store Listing Monitor Public Apify Store listing snapshots. Find it here: https://apify.com/zentrafoundry/app-marketplace-review-pricing-monitor
JSON Catalog Schema Normalizer Typed rows from a public JSON catalog. Find it here: https://apify.com/zentrafoundry/csv-json-schema-normalizer
Amazon BSR and Price Tracker ASIN price, availability and BSR snapshots. Find it here: https://apify.com/zentrafoundry/amazon-bsr-price-history-tracker
Anyway Merchant of Record for developers and AI products: global checkout, subscriptions, tax compliance, payouts, and agent payments.
WebToolsEdge Free browser-based tools for text, SEO, images, calculators, developers, and everyday tasks.
iLook Privacy-first AI face analysis for developers and teams, with clear non-medical reports and REST, OpenAPI, MCP, and A2A access.
TrackTimer AI-first time tracking for freelancers and agencies, with client projects, billable hours, a REST API and MCP server.
Pepys Pay-as-you-go AI transcription for audio and video, with multilingual transcripts, AI search/chat, API and MCP access.
Pebble Mind Private AI that runs on your iPhone and iPad, with supported models available locally and no account or API key required.
Liftaven Search, analytics and ad data in one workspace, with MCP access for AI agents.
whomi.bio The link-in-bio for engineers, with live proof from GitHub, Stack Overflow, LeetCode, npm and RSS.
MCPBackend Managed SQLite backends with REST APIs, authentication, row-level security, webhooks, and MCP access for coding tools.

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