API Tools

Echolon - A powerful, local-first API client. Open source alternative to Postman with Git integration, offline support, and multi-protocol capabilities.

Agent Sandbox gives AI agents what they've been missing: a real computer. While other tools focus on making AI smarter, we focus on making AI capable, with sandboxed compute, cloud storage, and artifact retrieval in a single tool. Agents can now upload files, run Python/Bash, install packages, and return real deliverables like charts, PDFs, and datasets all while running locally on your machine.

Turn Google Sheets into a full REST API in seconds. Get GET, POST, PUT, and DELETE endpoints instantly to power apps and sites. No-code, free, and updates in real-time.

Postproxy is a unified publishing API for social networks. Built for developers who automate content at scale. One endpoint, explicit states, built-in retries. And scheduling, of course.

Universal-3 Pro is a new class of speech language model built for Voice AI. Control transcription using instructions and domain context like names, terminology, and topics to get accurate output at the source. No custom models, no post-processing pipelines, no hallucinations. Includes 1,000 keyterms, audio tagging, and 6-language code-switching for $0.21/hr.

Brand.dev is a brand data API used by 5,000+ companies. Our customers kept asking for a simpler way to display logos in client-facing UIs without the overhead of API calls. Logo Link is the answer, optimized for high-volume reads via a global CDN.

Polyvia is the first Visual Knowledge Index for Agents & MCPs. Turn scattered visuals into a queryable source of truth with every fact disambiguated. Other tools extract visuals OR index text — Polyvia indexes and reasons over visuals, connecting facts across 10,000s of documents. Built for developers of multimodal agents and knowledge-work teams.

Ranked #1 for quality vs latency. Grok Imagine API delivers SOTA video & native audio generation. Features advanced editing (add/remove objects) and superior instruction following. Build end-to-end creative workflows with the fastest video API.

Kokori TTS app for macOS: Transform text to speech with a powerful local API server & desktop app. High-quality voices, speed control, and seamless menubar integration.

RedUp: pay for tokens for what you need: full-stack Reddit posting, scheduling, analytics platform (and API) — built for creators, marketers, agencies, developers who want power without risking bans (or building fragile bots). **What You Can Do With RedUp** * Smart Reddit Scheduling, subreddit discovery, post-spinning (variations per subreddit to meet their audience and rules) * Schedule posts across multiple subreddits * Post at optimal times per subreddit * Avoid spam patterns/risky behavior

A public API for generating explorable 3D worlds from text, images, and video — bringing Marble's world modeling capabilities into your applications.

Record any browser task once and get production-ready code instantly with Demonstrate Mode. Edit further your code in our Automation Studio with live browsers, deploy automation code as a serverless function, and schedule it to run autonomously. Managed sessions, proxies, identities, and vaults handle everything behind the scenes. The fastest path from prototype to production in one unified platform.

Let your AI agent search across the whole web with the fastest and accurate web search API by Crustdata - Control your search results by filtering on the website domains, date posted, sources and geo location. - Search across the news articles and social posts published just an hour ago. - Search for open source creators and authors of research papers - Get exact answers to your query via deep research mode - Combine with our fetch API to extract all content from a web page

Templated now supports Video Rendering via API. Design dynamic video templates once and automatically generate MP4 videos at scale — using the same workflow you already use for images and PDFs. No video infrastructure, no manual editing. Just templates + automation for social videos, product demos, motion graphics, and personalized content.

AskUCP is one of the first apps built on the Universal Commerce Protocol, an open standard announced by Google and Shopify on January 11th. (ucp.dev) Instead of searching store by store, AskUCP lets you search the entire Shopify ecosystem from a single interface. No APIs. No integrations. Just one search across millions of products. As more platforms adopt UCP, their catalogs become searchable too. This is what commerce looks like when silos disappear.

Quetzly helps developers, GIS and IT teams test, monitor, and visualize geospatial APIs. Send http requests, adjust headers and query params, and inspect JSON with an integrated editor. Render WMS, WFS, GeoJSON and ArcGIS services on an interactive map, toggle layers, zoom to extents, and export data as GeoJSON or Shapefile. Track endpoint health to reduce downtime and keep location services reliable. Quetzly is currently in open Beta. Try it for free.

Analyze millions of SKUs. Automate your sourcing. Outpace everyone.

Automate and scale your PDF generation

Ship gamification fast with flexible APIs for achievements, streaks, points, and leaderboards. Configure features without coding, automate personalized email and push notifications, and monitor impact on retention and engagement from a dashboard.

Most AI apps waste 70% of their budget. Wrong models. No caching. Payment fees that destroy micropayments. P402.shop: Compare 50+ AI APIs (GPT-5.2, Claude Opus 4.5, Gemini 3, more). Find the right model for your use case. See costs explode from 100 to 1M users. Free. P402.io: Accept micropayments without Stripe's $0.30 killing you. 1% flat fee. Built on x402—HTTP's payment standard, finally working. Vibe-coded apps break at scale. Optimized ones don't.

Building AI chat features often means too much complexity — SDKs, databases, and infrastructure — just to support conversations and memory. Conversations API removes that overhead. Build stateful AI chat without managing backend systems. All chat data is stored for you — you only keep the conversation_id. What it helps with – AI chat memory & state – Faster prompt iteration – No backend setup – Ideal for low-code builders Built after helping builders stuck on AI chat infra instead of product.