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Writesonic
ChatGPT
Rytr
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IsValid.dev
Abstract APIs
Numverify
mailboxlayer API
IBAN.com
VAT-calc.net
Melissa Data Quality
MailValidation.io
IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), regional codes (PESEL, REGON, VAT), and more.
The service works on a freemium model โ 100 free API calls per day, no credit card required. Users manage API keys through a dashboard with usage analytics showing daily call volume and per-endpoint breakdowns.
Copy.ai
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IsValid.dev's answer:
IsValid offers 70+ validators in a single API โ covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.
IsValid.dev's answer:
Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.
IsValid.dev's answer:
Developers and software teams building applications that handle user input, financial data, or international identifiers โ particularly in fintech, e-commerce, and SaaS products.
IsValid.dev's answer:
IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.
IsValid.dev's answer:
Next.js, Fastify, PostgreSQL, Docker
I've thoroughly examined Copy.ai and included it in OpenPedia. I think this tool is fantastic and very helpful. Copy.ai is my favorite AI Writing assistant. I like it.
Based on our record, Copy.ai seems to be more popular. It has been mentiond 105 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Copy.ai is more than a tool; it's a wizard for email marketing. Say goodbye to writer's block; this AI crafts compelling email copy with a few simple inputs. Watch your email campaigns transform effortlessly. - Source: dev.to / over 2 years ago
I'm a software engineer and I am working on a simple tool that helps people send personalized marketing emails. The personalization part is super basic. You tell the tool what you want to sell (a product, a position you are hiring for, etc), and give your recipient's linkedin url. The tool will scan linkedin and write an email that caters to your audience's profile. You can also give it multiple linkedins to batch... Source: almost 3 years ago
For example, some headings were obvious, such as โWhat Does No-Code Mean?โ, and then unique headings such as โImagine having the power of codeโฆ without the headaches.โ copy.ai and Jasper.ai are about the same price, and while I prefer the content output of copy.ai, I just canโt justify spending $50/month on it. - Source: dev.to / almost 3 years ago
You might be asking why you should use something fairly new like Quick Creator as opposed to more established products like Jasper or Copy.AI, right? That is because although we are still fairly new compared to them, our software engineers and founder are experienced in the realm of digital technology and marketing with over decades worth of experience, your store or company is in good hands. Not to mention, we... Source: about 3 years ago
We use our own R2D2 app. I know there are a lot out there like copy.ai and ChatGPT Writer. Which AI apps/Chrome Extensions/Software do you use that actually are improving your work and productivity? Source: about 3 years ago
Jasper.ai - The Future of Writing Meet Jasper, your AI sidekick who creates amazing content fast!
Abstract APIs - Simple, powerful APIs for everyday dev tasks
Writesonic - If youโve ever been stuck for words or experienced writerโs block when it comes to coming up with copy, you know how frustrating it is.
Numverify - Global phone number validation and lookup API
ChatGPT - ChatGPT is a powerful, open-source language model.
mailboxlayer API - Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more.