# OpenTahr

> OpenTahr is an AI workshop for web professionals, with twelve tools for SEO, content and websites that run on your own API keys (BYOK, bring your own key). The keys stay in the browser, calls go straight to the AI providers and users pay those providers directly.

## Key facts
- Launched in 2026 in France, in public beta. Every account is free during the beta.
- Planned paid plans, not on sale yet: Pro at €29.99/month, €199/year or €599 lifetime (5 sites, higher quotas, no OpenTahr credit on exports) and Studio at €99/month, €799/year or €1,499 lifetime (everything unlimited, auto-blog, bulk generation).
- OpenTahr adds no margin on AI usage and sells no AI credits. Users pay each provider at its own price list.
- API keys are stored in the user's browser and are never sent to OpenTahr servers. Two features relay public data through the OpenTahr server, the site audit (fetching the public page to analyze) and the free keyword suggestions (Google autocomplete). Neither is stored.
- Published by a French sole proprietorship under French law. Founder and author: Anthony (https://opentahr.com/author/anthony/). Contact: contact@opentahr.com.
- No rank tracking or monitoring. No promise of rankings, indexing or traffic.

## Tools
- Expert Chat. A web consultant for SEO, content and technical questions. Several AI models can debate, then the main model writes the final synthesis. You can import CSV files (Semrush, GSC, Haloscan) and connect a Search Console property to discuss real data, all in the browser.
- Site audit. A full audit (technical, on-page, content, performance, E-E-A-T, internal linking, structured data and more), adapted to the type of site and delivered as a PDF. Two optional checks can be ticked, Google Discover compatibility and readiness for Google AdSense approval, both included in the same report and PDF.
- Auto-blog (Studio plan). The user's WordPress site publishes on its own. Keywords become SEO titles proposed by the AI (60 characters or fewer), the user approves them, then articles go out automatically at the chosen pace (full article, featured image and SEO meta tags), with unlimited articles and sites.
- Article writer. Analyzes the 3 competitors that rank on the results page, then writes a natural, human-sounding article designed to cover the topic better than they do, with HTML and Word export.
- Image generator. A prompt assistant (style, framing, light, colors, quality) and generation with your OpenAI or Google key, with a Discover-friendly mode.
- Website builder. A ready-to-use lead generation website (3 designs, local SEO), delivered as a ZIP file.
- Lead magnet generator. A complete custom ebook (10 to 100 pages), unique and laid out, exported as PDF and Word.
- SEO research (DataForSEO, BYOK). Real keyword data with search volume, difficulty (0 to 100), intent, CPC, ideas, long tail, and the keywords of a site or a competitor. Filters, grouping by intent, CSV export and a Write button that opens the Article writer. The data is real (DataForSEO as source) and never invented. Calls go straight from the browser, nothing is stored at OpenTahr.
- Internal linking. Maps the internal links of a connected WordPress site as an interactive graph, finds orphan pages, pillar pages and click depth, proposes a topic cluster plan and creates the missing links and articles in one click. Requires the OpenTahr Connector plugin.
- Indexing. Finds published pages that Google does not index (URL Inspection API of the user's Search Console, 100% in the browser), grouped by reason (crawled not indexed, discovered not indexed, duplicate, noindex, 404 and more). Each page can be handed to Expert Chat, which reads its content through the plugin and suggests the least invasive fix. Requires a connected Search Console (owner service account) and the OpenTahr plugin.
- Link building (LemmiLink). Builds a site's authority with backlinks, from finding link opportunities to tracking them, through the LemmiLink integration.
- Boost Pop (PopCash). Creates and runs pop ad campaigns to bring traffic to a site, through the PopCash network (BYOK).

## WordPress integration
- Free OpenTahr Connector plugin (download at https://opentahr.com/connect/opentahr-connector.zip). It connects a WordPress site to OpenTahr securely (hashed key, HTTPS, access limited to opentahr.com).
- Direct publishing of articles and images (with optimized alt text and title, SEO meta tags for Yoast or Rank Math), as a draft, published or scheduled. Expert Chat can also act on the site (fix alt text, create pages) after confirmation.
- Auto-blog (Studio plan). Automatic publishing on a schedule, run on the user's WordPress site. OpenTahr keeps nothing, and the credentials stay with the user.

## Principles
- API keys are stored only in the browser, never on OpenTahr servers.
- Works with OpenAI, Anthropic (Claude), Google Gemini, DeepSeek, Mistral, Groq and OpenRouter.
- Strict honesty, with no fake statistics and no fake testimonials.

## Main pages
- [Home](https://opentahr.com/): the 12 tools, how BYOK keeps the workshop free, security and pricing
- [Get your API keys](https://opentahr.com/api-keys/): OpenRouter, OpenAI, Claude, Gemini and more, step by step
- [FAQ and help](https://opentahr.com/faq/): illustrated guide covering getting started, API keys, every tool, connecting a WordPress or custom site, auto-blog, SEO research, plans, security and troubleshooting
- [About OpenTahr](https://opentahr.com/about/): the project, its principles and its founder
- [Author, Anthony](https://opentahr.com/author/anthony/): a French entrepreneur (web, SEO, AI) and founder of OpenTahr. The methods in OpenTahr are the ones he uses on his own sites.
- [Contact](https://opentahr.com/contact/): email contact@opentahr.com

## AI without a subscription (BYOK guide series)
- [AI without a subscription, a practical guide to BYOK](https://opentahr.com/ai-without-subscription/): the pillar page of the series
- [How to get an OpenAI API key, step by step](https://opentahr.com/ai-without-subscription/openai-api-key/)
- [The real cost of AI when you pay per use](https://opentahr.com/ai-without-subscription/real-cost-of-ai/)
- [Jasper alternative for writing without a monthly plan](https://opentahr.com/ai-without-subscription/jasper-alternative/)
- [How to get a Claude API key from Anthropic](https://opentahr.com/ai-without-subscription/claude-api-key/)
- [How to get a free Gemini API key](https://opentahr.com/ai-without-subscription/free-gemini-api-key/)
- [How to get a Mistral API key, free plan included](https://opentahr.com/ai-without-subscription/mistral-api-key/)
- [OpenRouter API key, one account for every AI model](https://opentahr.com/ai-without-subscription/openrouter-api-key/)
- [How to get a DeepSeek API key at a rock-bottom price](https://opentahr.com/ai-without-subscription/deepseek-api-key/)
- [How to get a Groq API key for fast AI](https://opentahr.com/ai-without-subscription/groq-api-key/)
- [How to get a Grok API key without an X subscription](https://opentahr.com/ai-without-subscription/grok-api-key/)
- [Perplexity API key (Sonar) without a Pro account](https://opentahr.com/ai-without-subscription/perplexity-api-key/)
- [Free AI API keys, the options that really exist](https://opentahr.com/ai-without-subscription/free-ai-api-keys/)
- [Koala and Writesonic alternative, pay for AI per use](https://opentahr.com/ai-without-subscription/koala-writesonic-alternative/)
- [Copy.ai alternative, write with your own API key](https://opentahr.com/ai-without-subscription/copy-ai-alternative/)
- [ChatGPT Plus alternative, when the API is worth it](https://opentahr.com/ai-without-subscription/chatgpt-plus-alternative/)
- [A Surfer SEO and Frase alternative with no quota](https://opentahr.com/ai-without-subscription/surfer-frase-alternative/)
- [AI images without a subscription, paid per image](https://opentahr.com/ai-without-subscription/ai-images-without-subscription/)
- [A Midjourney alternative with an official image API](https://opentahr.com/ai-without-subscription/midjourney-alternative-api/)
- [AI writing without a subscription, the BYOK method](https://opentahr.com/ai-without-subscription/ai-writing-without-subscription/)
- [What is BYOK in AI, a plain definition](https://opentahr.com/ai-without-subscription/what-is-byok/)
- [Subscription vs API key, which one to choose for AI](https://opentahr.com/ai-without-subscription/subscription-vs-api-key/)
- [Why pay-as-you-go AI is cheaper, with the numbers](https://opentahr.com/ai-without-subscription/pay-as-you-go-ai-cheaper/)
- [BYOK pros and cons, an honest assessment](https://opentahr.com/ai-without-subscription/byok-pros-and-cons/)
- [BYOK data privacy and where your content really goes](https://opentahr.com/ai-without-subscription/byok-data-privacy/)
- [BYOK for agencies and how to organize client keys](https://opentahr.com/ai-without-subscription/byok-for-agencies/)
- [Switch from an AI subscription to an API key, step by step](https://opentahr.com/ai-without-subscription/switch-subscription-to-api/)
- [What an AI token is and what it really costs](https://opentahr.com/ai-without-subscription/what-is-a-token/)
- [Calculate the API cost of an AI call, step by step](https://opentahr.com/ai-without-subscription/calculate-api-cost/)
- [Input vs output tokens and why AI output costs more](https://opentahr.com/ai-without-subscription/input-vs-output-pricing/)
- [AI API pricing compared on one dated table](https://opentahr.com/ai-without-subscription/ai-api-pricing-compared/)
- [The best value AI model for each kind of user](https://opentahr.com/ai-without-subscription/best-value-ai-model/)
- [The cheapest AI model for writing, ranked by price](https://opentahr.com/ai-without-subscription/cheapest-ai-model-for-writing/)
- [Monthly AI budget, how to estimate it accurately](https://opentahr.com/ai-without-subscription/monthly-ai-budget/)
- [How to reduce AI costs with 8 levers ranked by gain](https://opentahr.com/ai-without-subscription/reduce-ai-costs/)
- [AI model routing, send simple tasks to cheaper models](https://opentahr.com/ai-without-subscription/ai-model-routing/)
- [OpenAI spending limit with project budgets and alerts](https://opentahr.com/ai-without-subscription/openai-spending-limit/)
- [Prompt caching cuts what you pay for repeated input](https://opentahr.com/ai-without-subscription/prompt-caching/)
- [Shorter prompts without losing answer quality](https://opentahr.com/ai-without-subscription/shorter-prompts/)
- [Track your API usage every day without a spreadsheet](https://opentahr.com/ai-without-subscription/track-api-usage/)
- [API key security in 8 practices that actually matter](https://opentahr.com/ai-without-subscription/api-key-security/)
- [Leaked API key, the emergency procedure in five steps](https://opentahr.com/ai-without-subscription/leaked-api-key/)
- [Revoke and rotate an API key without downtime](https://opentahr.com/ai-without-subscription/revoke-api-key/)
- [How to share an API key with your team safely](https://opentahr.com/ai-without-subscription/share-api-key-team/)
- [Storing an API key in the browser safely](https://opentahr.com/ai-without-subscription/api-key-in-browser/)
- [GPT-4o API vs ChatGPT Plus, what really changes](https://opentahr.com/ai-without-subscription/gpt-4o-api-vs-chatgpt-plus/)
- [Build a personal AI assistant with your own API key](https://opentahr.com/ai-without-subscription/personal-ai-assistant/)
- [How to try AI without a credit card](https://opentahr.com/ai-without-subscription/try-ai-without-credit-card/)
- [Which API key to choose for your real needs](https://opentahr.com/ai-without-subscription/which-api-key-to-choose/)
- [How to use multiple AI models in one place](https://opentahr.com/ai-without-subscription/multiple-ai-models/)

## AI news (the OpenTahr journal)
- [The OpenTahr journal](https://opentahr.com/blog/): AI news, AI prices and BYOK guides
- [AI news category](https://opentahr.com/blog/category/ai-news/)
- [AI without a subscription category](https://opentahr.com/blog/category/ai-without-subscription/)
- [Journal RSS feed](https://opentahr.com/blog/feed.xml)
- [AI in public services as France equips one million staff](https://opentahr.com/blog/ai-public-services-france/)
- [Gemini 3.5 Pro launch and what it changes for your AI work](https://opentahr.com/blog/gemini-3-5-pro-launch/)
- [Google AI Mode goes default as 68% of searches get no click](https://opentahr.com/blog/google-ai-mode-zero-click/)
- [Sovereign AI for Europe, Macron's case at VivaTech](https://opentahr.com/blog/vivatech-sovereign-ai-europe/)
- [GPT-5.6 Leaks and What We Know About OpenAI's Next Model](https://opentahr.com/blog/gpt-5-6/)
- [Sovereign AI in France Gets €655 Million and Drops Palantir](https://opentahr.com/blog/france-sovereign-ai/)
- [Mistral AI Valuation Could Hit €20 Billion With a €3B Raise](https://opentahr.com/blog/mistral-ai-valuation-funding/)
- [Anthropic Overtakes OpenAI in Business and Heads for an IPO](https://opentahr.com/blog/anthropic-overtakes-openai-ipo/)
- [Fable 5 Shut Down by US Order Three Days After Launch](https://opentahr.com/blog/fable-5-us-government-shutdown/)
- [Google AI Plus Price Cut to €4.99 Starts an AI Price War](https://opentahr.com/blog/google-ai-plus-price-cut/)
- [Siri Powered by Gemini and What Apple Revealed at WWDC](https://opentahr.com/blog/siri-powered-by-gemini/)
- [GitHub Copilot Token Billing and What It Does to Your Bill](https://opentahr.com/blog/github-copilot-token-billing/)
- [Claude Fable 5 Pricing, Access and First Benchmarks](https://opentahr.com/blog/claude-fable-5/)

## Optional
- [Site map](https://opentahr.com/site-map/)
- [XML sitemap](https://opentahr.com/sitemap.xml)
- [WordPress connector plugin](https://opentahr.com/connect/opentahr-connector.zip)
- [Privacy policy](https://opentahr.com/privacy-policy/): data processed, retention, rights for EU, UK, US and other users
- [Terms of use](https://opentahr.com/terms/)
- [Legal notice](https://opentahr.com/legal-notice/)
- [Cookies and local storage](https://opentahr.com/cookies/)