Writing AI tools with API
Explore the best 87 AI tools for Writing that offer an API and compare them for use cases, features and pricing. Use the AI-powered search to find more specialized tools for Writing and more.
87 AI Tools for: Writing
Inkwell Plot is an AI-native screenplay editor that offers scene-aware editing, structured version control, and production workflows for screenwriters and teams. It enables targeted AI passes, line-by-line review, and export-ready screenplays with FDX, Fountain, and PDF support.
6 0
2
Freemium
- $19/mo
BypassGPT rewrites AI‑generated text into human‑like, plagiarism‑free content. It supports keyword‑rich SEO, file upload and API integration, helping students, bloggers, webmasters, and agencies avoid AI detection for improved readability and brand voice.
11 3
Free
- $8/mo
BypassGPT rewrites AI‑generated content to be human‑readable, correcting grammar and punctuation while producing SEO‑friendly, plagiarism‑safe text. It also bypasses spam filters and supports over 50 languages with an API for marketers and students.
15 7
Subscription
- $7/mo
The SASSbook AI Writer is an AI text generator that creates unique content based on your prompts. It offers word count and style preferences, creative control, and other tools like summarizer and headline generator. Commercial plans with daily limits are available.
Sassbook AI Stori Writer is an AI-powered tool that generates original stories based on prompts and supports multiple genres with creative control.
LanguageTool is an AI grammar, spelling, and style checker supporting 30+ languages. It offers real‑time browser extensions, desktop and Word add‑ins, advanced Picky Mode, paraphrasing, and an API for developer integration.
13 3
Free
- €4.16/mo
PopVid AI generates visuals and short cinematic clips from prompts, adds custom twist endings, and converts images to video for visual-first roleplay stories. Creator tools, community publishing, and an API support interactive video workflows and integrations.
1 0
AIHumanize.io rewrites AI‑generated text into natural, human‑like prose while preserving the original meaning. It offers scene‑specific editing for academic, blog, or business content, produces multiple variants, and verifies outputs against major AI‑detectors.
4 1
Subscription
- $6/mo
AIのべりすと is a Japanese story‑writing AI trained on 2 TB of text. It accepts brief prompts to generate context‑aware prose in multiple genres, create opening scenes from keywords, and produce character profiles or role‑play dialogues, running in real‑time on Cloud TPU.
13 6
Freemium
Hix.ai is a versatile AI writing platform featuring tools like Articlegpt and Browsergpt for optimized article generation and smooth web integration, respectively, enhancing writing productivity and search engine optimization.
14 4
Free trial
Sapling offers a language‑model API that delivers real‑time grammar corrections in enterprise workspaces and messaging platforms. Developers embed it into editors, CRMs, and customer‑service tools with a simple SDK/API, while the platform supports private cloud, encryption, PII redaction, SSO, and self‑hosted deployment.
AI Humanizer is a content creation tool that helps bypass strict AI detectors, ensuring authentic, plagiarism-free text. With user-friendly design and high success rates, it's ideal for humanizing articles and social media content effortlessly.
Writesonic AI Visibility tracks brand rankings across ChatGPT, Gemini, Perplexity, and 10+ AI platforms, delivering scores, sentiment, and citation data. Its action center recommends outreach, SEO fixes, and AI‑optimized content, while 120M conversation insights guide topic selection.
13 6
Free
- $49
Quetext is an all‑in‑one writing platform offering plagiarism detection, AI content detection, real‑time grammar and spell correction, summarization, paraphrasing, and citation generation. It supports PDF, DOC, TXT files with bulk uploads for students, teachers, researchers, and creators.
Trinka AI is a privacy‑first grammar and language enhancement platform for academic and technical writing. It corrects grammar, punctuation, style, provides plagiarism checks, citation formatting, and multilingual support, integrating into Word, Chrome, and other editors.
1 1
Paid
- $20/mo
BypassAI rewrites AI‑generated content to bypass detection tools like GPTZero, Turnitin, and ZeroGPT, removing watermark patterns and spam‑like language. It supports 30+ languages, preserves meaning, and improves SEO‑friendly readability for academic, editorial, and marketing use.
0 1
Subscription
- $6.99/mo
LTX Studio is an AI‑powered web platform that converts text prompts into videos, images, or script‑to‑video outputs, offers camera keyframing, storyboard creation, AI‑generated assets, and collaborative editing—all within a single desktop‑browser workspace.
14 4
Subscription
AI Writer offers AI‑powered tools to generate articles, blogs, captions, emails, and ads. Set tone, character limits, and platforms for titles, outlines, and meta descriptions. Built‑in expand, shorten, paraphrase, summarize, grammar, keyword, and translation features streamline editing and ensure quality.
9 5
1
Free
Uncheck AI evaluates text for AI signatures, then rewrites it into human‑like, spam‑free prose that passes detectors such as GPTZero, Turnitin, Copyleaks, and ZeroGPT. It removes OpenAI watermarks, supports SEO‑friendly, multilingual content, and gives simultaneous detection scores.
GPT‑4 powered writer that produces SEO‑optimized blog posts, product descriptions, captions, emails, and ads from a single interface. It offers 50+ templates, multi‑language support, a brand‑kit for tone consistency, and direct publishing to WordPress, Shopify, and social platforms.
2 0
Freemium
- $11/mo
AI Humanizer turns AI‑generated text into natural language while preserving meaning. It detects AI origin with leading systems, supports 50+ languages and long documents, offers Chrome extension and API, and lets users select pre‑built models or clone their own style.
4 2
Subscription
- $8.25/mo
Hypotenuse AI automates product data and content creation for e‑commerce, generating titles, descriptions, alt text, and enriching attributes across marketplaces. It includes image editing, bulk publishing via API to platforms like Shopify, and tracks SEO performance.
2 0
Subscription
- $19/mo
Elepha is an AI writing assistant that streamlines research, improves writing quality, and generates content using GPT-3 technology. It requires an OpenAI account and offers a 30-day free trial.
AI Text Humanizer turns machine‑generated prose into natural, human‑readable text, removes repetitive patterns, offers readability scores, and supplies API and web interface with counters. It supports multiple languages, protects data, and assists students, writers, marketers, and corporate teams.
6 1
Freemium
- $25
AI Humanizer transforms AI‑generated text into natural, human‑like prose, using NLP to restructure sentences and replace repetitive patterns while preserving meaning. It supports eight languages and processes up to 5,000 words per use, aiding writers, marketers, and professionals.
4 1
Subscription
Ryter AI Humanizer converts AI-generated text into natural, human-style writing to reduce detection by tools like Turnitin, GPTZero and Originality.ai while preserving meaning. It provides fast automated rewriting, detector reports, API access and privacy options.
TextGears is a grammar and spell checker with an API for automated proofreading, readability scoring, and text analysis. It supports multiple languages and offers both cloud-based and self-hosted deployment for integration into various business workflows.
Anyword is an AI content platform that creates ads, blogs, landing pages, social posts, and emails, offering performance prediction based on historical A/B data. It provides a data‑driven editor, brand‑voice management, API integrations, and enterprise‑grade security.
1 0
Free
- $49/mo
BlogSEO is an AI blog generator that creates SEO-optimized articles in minutes and publishes them directly to your CMS. It also automates content strategy by analyzing your site, discovering high-ROI keywords, and inserting contextual internal links to boost rankings.
WordAi uses AI to rewrite sentences and entire articles, enriches text with related keywords, corrects spelling and grammar, and generates up to 1,000 unique variations. It passes AI detection and Copyscape, supporting bulk, HTML, spintax, and API integration.
2 0
Freemium
- $9