6,628 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 A to Z Filter Free tier Under $20 113 of 6,628

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AI2sql Chrome Extension

API Development
Free
3.9 /5 Toolio reviewer

Turns a plain-language description into a working SQL query in seconds.

checked 3 Oct 2026

AiBot

API Development
Free
3.9 /5 Toolio reviewer

Connects your API keys to a chat widget you can drop into any site.

checked 5 Oct 2026

Aipify

API Development
Free
3.9 /5 Toolio reviewer

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

checked 5 Oct 2026

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.

checked 5 Oct 2026

AI Translate

API Development
Free
3.9 /5 Toolio reviewer

Translates text into 99-plus languages and reads it back with natural-sounding AI voices.

checked 3 Oct 2026

Free
3.9 /5 Toolio reviewer

Highlights text on any page and sends it to the AITTIA API for instant analysis.

checked 3 Oct 2026

Algorithmia

API Development
Free
3.7 /5 Toolio reviewer

Unified platform for building, operating, and governing AI at scale.

checked 5 Oct 2026

AlphaDoc

API Development
Free
3.9 /5 Toolio reviewer

AlphaDoc controls domain reservations. It's exclusive to TransIP customers.

checked 4 Oct 2026

Alt Text AI

API Development
from $5 per month
4.1 /5 Toolio reviewer

Missing alt text can hurt accessibility and SEO—AltText.ai scans your site for missing descriptions, then generates accurate ones automatically.

checked 4 Oct 2026

API2D

API Development
Free
3.9 /5 Toolio reviewer

Limited to static API responses, lacks dynamic content.

checked 4 Oct 2026

ApyHub

API Development
$16 /month
4.0 /5 Toolio reviewer

Not suitable for building custom APIs.

checked 3 Oct 2026

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.

checked 3 Oct 2026

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.

checked 3 Oct 2026

Bannerbear

API Development
$49 per month
3.9 /5 Toolio reviewer

Automate social media and e-commerce visuals with ease.

checked 5 Oct 2026

CamelCamelCamel

API Development
Free
4.5 /5 Toolio reviewer

Tracks Amazon prices over time and alerts by email the moment one drops to your target.

checked 4 Oct 2026

Categoraize

API Development
$9.95/mo
3.8 /5 Toolio reviewer

Categorize data easily with AI. Can be limited to only predefined categories.

checked 4 Oct 2026

ChatGPT Builder

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

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

checked 5 Oct 2026

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.

checked 5 Oct 2026

Cleanup.pictures

API Development
Free with limitations
4.0 /5 Toolio reviewer

Remove objects, people, text and defects for free or pay for high quality.

checked 5 Oct 2026

Conversease

API Development
Free trial available
3.9 /5 Toolio reviewer

Learns English through real conversations, but lacks live tutors.

checked 4 Oct 2026

Convictional

API Development
$49 per month
3.8 /5 Toolio reviewer

Convictional is a tool for organizations to align goals with AI agents.

checked 5 Oct 2026

Copyleaks

API Development
from $16.99 per month
4.0 /5 Toolio reviewer

Copyleaks is best for businesses and educators, not individual users.

checked 4 Oct 2026

Create Easily

API Development
Free
3.9 /5 Toolio reviewer

Transcribes English audio into text and exports subtitles as txt, srt or vtt.

checked 5 Oct 2026

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.

checked 3 Oct 2026

Cult

API Development
$50/yr
4.0 /5 Toolio reviewer

Install with components for marketing pages and more.

checked 3 Oct 2026

DataLang

API Development
Free
3.8 /5 Toolio reviewer

DataLang is a casino and gaming site with many bonuses, but lacks clear navigation.

checked 3 Oct 2026

Defapi

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

Unified access to multiple top-tier AI models.

checked 4 Oct 2026

Depopaid

API Development
$0.32/mo
4.0 /5 Toolio reviewer

Auto refresh listings, follow users.

checked 5 Oct 2026

Dispara AI

API Development
from $19 per month
3.8 /5 Toolio reviewer

Transforme suas conversas de WhatsApp em vendas previsíveis.

checked 4 Oct 2026

DocDriven

API Development
Free
3.7 /5 Toolio reviewer

DocDriven secures data, but updates are delayed.

checked 5 Oct 2026

Docuwriter

API Development
$19 per month
3.8 /5 Toolio reviewer

DocuWriter generates complete AI documentation for any codebase but requires regular updates to stay aligned with evolving code.

checked 3 Oct 2026

Doflow

API Development
Free
3.8 /5 Toolio reviewer

PUB88 offers a comprehensive range of casino and sports games but lacks detailed user reviews.

checked 4 Oct 2026

Dust

API Development
Free, limited features
4.0 /5 Toolio reviewer

Dust connects company knowledge, tools, and teams for AI collaboration. Flexible models ensure work gets done.

checked 5 Oct 2026

Facecheck AI

API Development
$19/mo
3.9 /5 Toolio reviewer

Find anyone online with FaceCheck.ID, but remember many unrelated people look alike.

checked 3 Oct 2026

Fastn

API Development
$59 per month
3.8 /5 Toolio reviewer

Eliminate the need for building or maintaining integrations.

checked 4 Oct 2026

Featherless

API Development
$25/mo
3.9 /5 Toolio reviewer

Cut your AI costs. Run GLM 5.3 on AMD Instinct GPUs exclusively with Featherless.

checked 5 Oct 2026

Fjorney

API Development
$9.99 per month
4.0 /5 Toolio reviewer

PUBGInsight offers in-depth strategy guides.

checked 5 Oct 2026

FormX AI

API Development
from $0.30
4.0 /5 Toolio reviewer

FormX.ai suits small businesses but may not scale well for larger enterprises.

checked 4 Oct 2026

Gamma AI

API Development
From $19 per month
3.9 /5 Toolio reviewer

Gamma AI uses AI to monitor and train employees on security.

checked 4 Oct 2026

Gemini

API Development
$39 per month
3.8 /5 Toolio reviewer

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

checked 5 Oct 2026

Gemma

API Development
Free, limited features
3.9 /5 Toolio reviewer

Build responsible AI applications at scale

checked 5 Oct 2026

Glif

API Development
$15 per month
3.8 /5 Toolio reviewer

Generate images, videos, and audio in one chat.

checked 5 Oct 2026

GPT-3 Anywhere

API Development
Free
3.9 /5 Toolio reviewer

Pipes OpenAI API results straight into website text fields without writing custom code.

checked 3 Oct 2026

GPTs Extension

API Development
Free
3.9 /5 Toolio reviewer

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

checked 5 Oct 2026

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.

checked 3 Oct 2026

HTTPie

API Development
Free
3.8 /5 Toolio reviewer

HTTPie simplifies API testing, offering an intuitive command-line interface.

checked 3 Oct 2026

Free
3.9 /5 Toolio reviewer

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

checked 3 Oct 2026

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.