6,895 tools, each one opened, scored and signed by a Toolio reviewer

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Every tool is opened and used by a Toolio reviewer, who scores it and writes the honest pros, cons and a clear verdict. No hype, no fluff.

Sort Newest A to Z Filter Free tier Under $20 119 of 6,895

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Defapi

API Development
$5 one-time top-up
3.9 /5 Toolio reviewer

Unified access to multiple top-tier AI models.

not yet checked

Template Generator

API Development
$29 per month
3.9 /5 Toolio reviewer

Generate templates, automate with API.

not yet checked

Linked API

API Development
from €49 per month
4.0 /5 Toolio reviewer

Automate LinkedIn with ease via API, SDKs, or CLI. Perfect for small teams.

not yet checked

PDFBolt

API Development
$19 per month
4.0 /5 Toolio reviewer

PDFBolt struggles with high-scale usage and frequent edits, but excels in privacy and customization.

not yet checked

Kie AI

API Development
from $0.04
3.9 /5 Toolio reviewer

Access best AI models in one API.

not yet checked

Ragie AI

API Development
$100 / month
3.9 /5 Toolio reviewer

It lacks long-term support, with service ending on July 19th. It’s great for quick projects.

not yet checked

PRST AI

API Development
$49.99 per month
4.0 /5 Toolio reviewer

A self-hosted gateway for managing prompts, pricing rules, and multiple AI tools from one dashboard.

not yet checked

Wrk

API Development
$1,000 once
3.8 /5 Toolio reviewer

Describe your process, and let it Wrk fully automate using AI bots.

not yet checked

SwiftSora

API Development
Free
3.9 /5 Toolio reviewer

An open-source AI video generator using OpenAI's Sora model.

not yet checked

SupaLaunch

API Development
$49 per project
3.9 /5 Toolio reviewer

Clay Code Boilerplate for faster development

not yet checked

Substrate

API Development
Free Trial $0
4.0 /5 Toolio reviewer

Limited to free trial; not suitable for full-time use.

not yet checked

Scrappey

API Development
from €0.10 per 1K (direct)
3.9 /5 Toolio reviewer

One request, clean data back.

not yet checked

Octopus AI

API Development
Not specified
3.9 /5 Toolio reviewer

Octopus AI enhances Tet Defense by identifying unresponsive resources and quick updates. Uzmanību!

not yet checked

Lokal

API Development
$1.99 per month
3.8 /5 Toolio reviewer

Win casino games, sports bets in one platform.

not yet checked

Lang AI

API Development
$19 per month
3.9 /5 Toolio reviewer

AI-powered support automation across channels.

not yet checked

Kusho AI

API Development
Free
3.8 /5 Toolio reviewer

Catch failures before production.

not yet checked

JSON AI

API Development
Free
3.9 /5 Toolio reviewer

Turns a defined schema into a live API endpoint that returns structured JSON from raw input.

not yet checked

Inferkit AI

API Development
Free
3.7 /5 Toolio reviewer

Improves Tet Tool's data security with AI.

not yet checked

Free
3.9 /5 Toolio reviewer

Auto-configures Adyen webhook and report settings for inai's payment analytics tools.

not yet checked

Grafychat

API Development
Free
3.9 /5 Toolio reviewer

A visual, non-linear chat canvas that connects ChatGPT, Google AI and other models with your own keys.

not yet checked

Glif

API Development
$15 per month
3.8 /5 Toolio reviewer

Generate images, videos, and audio in one chat.

not yet checked

Gemma

API Development
Free, limited features
3.9 /5 Toolio reviewer

Build responsible AI applications at scale

not yet checked

Gemini

API Development
$39 per month
3.8 /5 Toolio reviewer

Get secure data access with Tet Drošība's improved Gemini solution.

not yet checked

GPTs Extension

API Development
Free
3.9 /5 Toolio reviewer

Turns the Chrome toolbar into a searchable directory of custom GPTs to try.

not yet checked

Fjorney

API Development
$9.99 per month
4.0 /5 Toolio reviewer

PUBGInsight offers in-depth strategy guides.

not yet checked

Cubeo AI

API Development
Free Forever
4.0 /5 Toolio reviewer

Suites start-ups and medium businesses for quick tasks, not large enterprises or complex workflows.

not yet checked

Conversease

API Development
$49/mo
4.0 /5 Toolio reviewer

Conversease is a conversation-first English learning platform. Great for beginners.

not yet checked

Conversease

API Development
Free trial available
3.9 /5 Toolio reviewer

Learns English through real conversations, but lacks live tutors.

not yet checked

ChatGPT Builder

API Development
from $49 per month
3.9 /5 Toolio reviewer

Limited to 5M tokens, not ideal for extensive usage.

not yet checked

Chat Thing

API Development
From $14 per month
4.0 /5 Toolio reviewer

Add an AI support agent to your site in 5 minutes, but it requires connecting content for learning.

not yet checked

Aspen

API Development
Free
3.9 /5 Toolio reviewer

Aspen is a free API-testing app for macOS with an AI assistant, ideal for REST APIs.

not yet checked

Ask Ben - Chrome Extension

API Development
Free
3.9 /5 Toolio reviewer

A Chrome extension that connects your own API key to GPT-3's Davinci model for quick Q&A.

not yet checked

Aipify

API Development
Free
3.9 /5 Toolio reviewer

An API that returns structured, GPT-4-backed responses for chatbots and data tools.

not yet checked

AIProxySwift

API Development
from $10 per month
4.0 /5 Toolio reviewer

Protect any API key in minutes with a fully managed proxy, but securing your own keys still requires setup.

not yet checked

Roborabbit

API Development
$49 per month
4.1 /5 Toolio reviewer

Web scrape and automate tasks with AI.

not yet checked

Replicate

API Development
$0.01 per hour
4.0 /5 Toolio reviewer

Run AI with an API. Deploy custom models.

not yet checked

Raycast

API Development
$9.50 per month
4.0 /5 Toolio reviewer

Raycast is an extendable launcher for productivity tools, fast and reliable.

not yet checked

Prst AI

API Development
$49.99 per month
4.0 /5 Toolio reviewer

A self-hosted control layer for prompts, pricing rules, and connections to outside AI tools.

not yet checked

Plainly

API Development
$48/mo
4.0 /5 Toolio reviewer

Automate video creation workflows in clicks. Save development time.

not yet checked

博查

API Development
Free
3.7 /5 Toolio reviewer

Limited to AI applications, not for general use.

not yet checked

Xpolyglot

API Development
$9.99
3.8 /5 Toolio reviewer

Limited to macOS, Xpolyglot struggles outside this platform.

not yet checked

Wizy

API Development
$15 per month
4.0 /5 Toolio reviewer

Custom GPT chatbots trained on your data.

not yet checked

Wasapi

API Development
$49 per month
3.9 /5 Toolio reviewer

If your team is overwhelmed with WhatsApp chats, Wasapi ensures none are missed and converts more conversations into sales by centralizing communication.

not yet checked

WProofreader

API Development
$19 per month
4.0 /5 Toolio reviewer

AI-powered grammar check and spelling correction for web apps, but slow on large texts.

not yet checked

Voiser

API Development
$9 per month
3.9 /5 Toolio reviewer

Saves time and effort on voiceover production, but may not be enough for large projects.

not yet checked

Voice Vector

API Development
$2/mo
4.0 /5 Toolio reviewer

Voice cloning, TTS & speech recognition on a pay-as-you-go basis.

not yet checked

API Development

Three worth starting with

Terms to know

API development tools help developers build, document, test and call APIs, and some wrap a ready-made service such as face recognition, CAPTCHA solving or vector search behind a simple endpoint. Examples include Vectorize, Luxand and Alt Text AI. When comparing, look at how the API is authenticated, how much it is rate-limited, and whether the documentation shows real request examples.

Questions people ask

Should I build my own API or use an AI service through an API?

Use a hosted API when the task is well defined, such as face detection or image captioning, and you do not want to train or host a model. Build your own when you need custom logic, tight control of data, or behaviour no vendor offers.

What should I check before depending on a third-party AI API?

Check rate limits, how errors are returned, whether older versions stay supported, and where your data is processed. A tool that works in a demo can still fail under production traffic, so run a load test and keep a fallback provider in mind.

How is API development different from Automation Tools and DevOps?

API development is about creating and consuming interfaces between software. Automation tools connect existing apps to run tasks without code, and DevOps covers deploying and running software. A project often uses all three, but each page here targets a different stage of the work.