llms.txt
+34 −18
− - [How to submit your app to ChatGPT's plugin directory (2026)](https://transica.dev/guides/chatgpt-app-directory): What OpenAI asks for before your app (now called a plugin) appears in ChatGPT's directory: verification, a public MCP server, sign-in, test cases and review. With links to OpenAI's docs.− - [How to get your connector listed in Claude's Connectors Directory](https://transica.dev/guides/claude-connectors-directory): What Anthropic checks before your MCP connector appears in Claude's directory: tool annotations, OAuth, a test account, the common rejection reasons and the Community and Verified labels.− - [Host your MCP server on your own domain, behind your existing sign-in](https://transica.dev/guides/mcp-server-hosting): What it takes to run an MCP server that ChatGPT and Claude can rely on: a public HTTPS address on your domain, OAuth through your identity provider, health checks, alerts and usage by AI app.− - [Turn your API into an MCP server for ChatGPT and Claude](https://transica.dev/guides/turn-your-api-into-an-mcp-server): How to go from an OpenAPI spec (or no spec at all) to MCP tools that AI assistants can use: picking operations, naming tools, splitting reads and writes, and testing them with AI agents.− - [Keep your ChatGPT and Claude listings healthy after launch](https://transica.dev/guides/manage-ai-app-listings): Getting listed is the start. Here's what changes after launch (directory rules, your tools, uptime) and how to keep your MCP listings working in ChatGPT and Claude.− - [Where to list your MCP server: every directory, checked October 2026](https://transica.dev/guides/where-to-list-your-mcp-server): ChatGPT, Claude, the official MCP Registry, Microsoft Copilot, Cursor and the community directories: which ones take submissions, what each needs and where to start.− - [MCP and AI app glossary: plain-English definitions for owners](https://transica.dev/guides/mcp-glossary): MCP, servers, tools, connectors, plugins, OAuth, tool annotations, MCP Apps and more: the terms you meet when you bring your product to ChatGPT and Claude, each linked to its official source.− - [Ways to get your API into ChatGPT and Claude, compared](https://transica.dev/guides/ways-to-build-an-mcp-server): Build it yourself with the MCP SDKs, generate it from OpenAPI, host it on Cloudflare or Vercel, use an integration platform, or use Transica: what each gives you, what's left for you to do, and who it suits.− - [The MCP server lifecycle: build, secure, list and maintain (2026)](https://transica.dev/guides/mcp-server-lifecycle): What an MCP app goes through to work in ChatGPT and Claude, and to keep working: choosing tools, building, sign-in and per-tool access, testing, hosting, review, and the upkeep after listing.− - [MCP server authentication: OAuth for ChatGPT and Claude (2026)](https://transica.dev/guides/mcp-server-authentication): How people sign in to your MCP server from ChatGPT and Claude: the metadata documents, how the app registers itself, PKCE, tokens bound to your server, refresh, and where each app is stricter than the MCP spec.− - [Per-tool access in MCP servers: public tools, signed-in tools and scopes](https://transica.dev/guides/mcp-per-tool-access): Let ChatGPT and Claude use some MCP tools without sign-in, ask for sign-in only when a tool needs someone's account, give each tool the narrowest permission, and ask for more later without breaking the chat.− - [AI agent traffic in numbers (2025–2026)](https://transica.dev/blog/ai-agent-traffic-in-numbers): What Cloudflare, Adobe, Pew, Imperva, HUMAN and Akamai have measured about AI crawlers and agents, what the numbers can and can't tell you, and what the shift means for your website.− - [Who's already inside ChatGPT, Claude and Copilot](https://transica.dev/blog/big-brands-in-chatgpt-and-claude): A dated timeline of the brands that built apps for AI assistants from 2024 to 2026, what those apps let people do, how the checkout experiment went, and what a mid-size business can take from it.− - [How to get your product listed in ChatGPT and Claude (2026)](https://transica.dev/blog/get-listed-in-chatgpt-and-claude): ChatGPT has 1.2 billion weekly users and Claude's directory lists 973 connectors. Here's what each directory asks for, side by side, what the big brands did first, and the mistakes that get apps bounced.− - [The MCP ecosystem in numbers (October 2026)](https://transica.dev/blog/mcp-in-numbers-2026): When ChatGPT, Gemini, Copilot and Claude adopted MCP, how fast the SDKs grew, how big the directories say they are, how well AI agents do on MCP tasks and how many servers are exposed, each number linked to its source.− - [MCP tool design: best practices from the directory rules and the research](https://transica.dev/blog/mcp-tool-design-best-practices): Eleven practices for MCP tools that AI agents pick correctly and the ChatGPT and Claude directories accept, drawn from OpenAI's and Anthropic's published rules, the MCP spec and the research, with every outside number linked to its source.− - [What's a live app? Hosting your MCP app on your own domain, behind your sign-in](https://transica.dev/blog/what-is-a-live-app): About 70% of exposed MCP servers hand their tool list to anyone who asks. Here's what it takes to run an app ChatGPT and Claude can rely on: your domain, your sign-in, the 2026 auth rules, monitoring, and what we handle for you.− - [Why AI agents trip up on websites, and what an app changes](https://transica.dev/blog/why-ai-agents-trip-up-on-websites): Browser agents went from 14% to around 60–70% on the standard benchmarks in under three years, but they're still slower, costlier and flakier than people. Here's what the research shows, and when an MCP app actually helps.+ - [Done-for-you listing](https://transica.dev/done-for-you): Transica builds, hosts and submits your app to ChatGPT and Claude, from $1,500 one-time+ - [ChatGPT apps: how to get listed in the app store](https://transica.dev/guides/chatgpt-app-directory): How to get your app into ChatGPT's app store, now called plugins: OpenAI's checklist, domain verification, test cases, review time and a real timeline.+ - [Claude connectors: find, add and submit yours](https://transica.dev/guides/claude-connectors-directory): What Claude connectors are, how to add one, and how to submit yours to Claude's Connectors Directory: requirements, rejections, review and labels.+ - [How to host an MCP server on your own domain](https://transica.dev/guides/mcp-server-hosting): What it takes to host an MCP server for ChatGPT and Claude: public HTTPS on your domain, OAuth through your provider, health checks, alerts and usage.+ - [How to turn an API into an MCP server](https://transica.dev/guides/turn-your-api-into-an-mcp-server): How to go from an OpenAPI spec, or no spec, to MCP tools AI apps can use: picking operations, naming tools, splitting reads and writes, and testing.+ - [Manage ChatGPT and Claude listings after launch](https://transica.dev/guides/manage-ai-app-listings): What breaks a ChatGPT or Claude listing after launch (directory rules, tool changes, downtime) and how to keep your MCP app working.+ - [Where to list your MCP server: every directory](https://transica.dev/guides/where-to-list-your-mcp-server): ChatGPT, Claude, the MCP Registry, Microsoft Copilot, Cursor and community directories: which take submissions, what each needs and where to start.+ - [MCP glossary: AI app terms in plain English](https://transica.dev/guides/mcp-glossary): MCP servers, connectors, plugins, OAuth, tool annotations and MCP Apps in plain English, each term linked to its official source.+ - [How to build an MCP server: 5 ways compared](https://transica.dev/guides/ways-to-build-an-mcp-server): Build with the MCP SDKs, generate from OpenAPI, host on Cloudflare or Vercel, use an integration platform or Transica: what each leaves for you to do.+ - [How to build and deploy an MCP server: 7 stages](https://transica.dev/guides/mcp-server-lifecycle): The seven stages of an MCP app in ChatGPT and Claude: choosing tools, building, sign-in, testing, hosting, directory review and upkeep after listing.+ - [MCP server authentication: OAuth with your login](https://transica.dev/guides/mcp-server-authentication): MCP OAuth for ChatGPT and Claude with your Auth0, Okta, Clerk or Supabase login: registration, redirect URIs, PKCE, token audience and refresh.+ - [MCP OAuth scopes: per-tool access and sign-in](https://transica.dev/guides/mcp-per-tool-access): Let ChatGPT and Claude use some MCP tools without sign-in, ask for sign-in only when needed, set the narrowest OAuth scopes and ask for more later.+ - [WooCommerce ChatGPT integration: products, orders](https://transica.dev/guides/chatgpt-app-for-woocommerce): What a WooCommerce store can put in ChatGPT: product feeds, staff tools, chat widgets, and its own plugin where shoppers sign in to check their orders.+ - [Alpic alternatives for ChatGPT and Claude apps](https://transica.dev/guides/alpic-alternatives): Transica, Manufact, FastMCP, Cloudflare, Gadget, Noodle Seed and AnythingMCP compared with Alpic: who writes the code, hosting, submission, sign-in, price.+ - [How to add a custom connector to Claude](https://transica.dev/guides/add-your-api-to-claude-and-chatgpt): Put an MCP server in front of your API, then add its URL as a custom connector in Claude and ChatGPT. Plans, sign-in options and how to list it.+ - [Website to ChatGPT app and Claude connector](https://transica.dev/guides/website-to-chatgpt-app-and-claude-connector): How a website becomes a ChatGPT app and Claude connector without code: one MCP server for both, no-code tools compared, your login, directory submission.+ - [ChatGPT app for Magento: products and orders](https://transica.dev/guides/chatgpt-app-for-magento): What a Magento or Adobe Commerce store can put in ChatGPT: agentic commerce modules, product feeds, staff tools, and its own app with shopper sign-in.+ - [How to get your business listed on ChatGPT (AEO)](https://transica.dev/guides/answer-engine-optimization): No form puts a business in ChatGPT's answers. What SEO for AI, AEO and GEO mean, which crawlers to allow, what's unproven and how to measure it.+ - [ChatGPT ads: how they work, cost, ads vs apps](https://transica.dev/guides/chatgpt-ads): How to advertise on ChatGPT: who sees ads, the $25 minimum daily budget, CPC bids, ChatGPT ads vs Google Ads, and when an app fits your business better.+ - [Shopify ChatGPT app: integration, plugin, own app](https://transica.dev/guides/chatgpt-app-for-shopify): What Shopify already does in ChatGPT, what the Shopify plugin is for, and how a store gets its own listed app where customers check orders and returns.+ - [Shopify MCP server: which one, URL and tools](https://transica.dev/guides/shopify-mcp-server): Shopify's MCP servers compared: owner connectors, UCP catalog and checkout, Customer Accounts, the AI Toolkit, and what replaced Storefront MCP.+ - [Shopify Claude connector: connect, Shop, own app](https://transica.dev/guides/shopify-claude-connector): How to connect Shopify to Claude: the connector for owners, the Shop connector for shoppers, the AI Toolkit for Claude Code, and a store's own connector.+ - [Shopify AEO: how AI assistants find your store](https://transica.dev/guides/shopify-aeo): What a Shopify store gets in AI answers by default, and what's left: Catalog eligibility, knowledge base, product data, llms.txt, robots.txt, measuring.+ - [What is an MCP server? Explained simply](https://transica.dev/guides/what-is-an-mcp-server): An MCP server lets AI apps like ChatGPT and Claude use your tools and data. What MCP means, how it works, MCP vs API, real examples and how to build one.+ - [How to add an MCP server to Claude](https://transica.dev/guides/add-mcp-server-to-claude): Add an MCP server to Claude, Claude Desktop, Cowork or Claude Code: connectors, claude_desktop_config.json, claude mcp add, scopes and fixes when it fails.+ - [How to turn a website into an MCP server](https://transica.dev/guides/turn-website-into-mcp-server): Convert your website to an MCP server for ChatGPT and Claude: the route for sites with an API, without one, or behind a login, step by step, with limits.+ - [WarrantyWarden in ChatGPT's plugin directory](https://transica.dev/blog/warrantywarden-chatgpt-plugin-directory): OpenAI approved WarrantyWarden for ChatGPT's plugin directory on 29 October 2026. What it does, how Transica built and hosts it, and what review flagged.+ - [AI agent traffic in numbers (2025–2026)](https://transica.dev/blog/ai-agent-traffic-in-numbers): What Cloudflare, Adobe, Pew, Imperva, HUMAN and Akamai measured about AI crawlers and agents, and what the numbers can and can't tell you.+ - [Who's already inside ChatGPT, Claude and Copilot](https://transica.dev/blog/big-brands-in-chatgpt-and-claude): A dated timeline of brands with apps in AI assistants, 2024 to 2026: what the apps do, how the checkout experiment went, what a mid-size business can take.+ - [How to get listed in ChatGPT and Claude](https://transica.dev/blog/get-listed-in-chatgpt-and-claude): What ChatGPT's and Claude's app directories each ask for, side by side, what the big brands did first, and the mistakes that get apps bounced.+ - [The MCP ecosystem in numbers (October 2026)](https://transica.dev/blog/mcp-in-numbers-2026): When ChatGPT, Gemini, Copilot and Claude adopted MCP, SDK growth, directory sizes, agent success on MCP tasks and exposed servers, each number sourced.+ - [MCP tool design best practices for AI agents](https://transica.dev/blog/mcp-tool-design-best-practices): Eleven practices for MCP tools AI agents pick correctly and ChatGPT's and Claude's directories accept, from their rules, the MCP spec and the research.+ - [MCP hosting on your domain: what's a live app?](https://transica.dev/blog/what-is-a-live-app): About 70% of exposed MCP servers list their tools to anyone. What a reliable ChatGPT and Claude app takes: your domain, sign-in, auth rules, monitoring.+ - [Why AI agents trip up on websites](https://transica.dev/blog/why-ai-agents-trip-up-on-websites): Browser agents reached around 60–70% on standard benchmarks but stay slower, costlier and flakier than people. What the research shows, when an app helps.