{"name":"MyWritingTwin","description":"An agent that captures a person's authentic writing voice as a portable AI Writing Profile. Given writing samples, it returns a Master Prompt and Runtime Block that any downstream LLM can use to write in the user's voice — eliminating the generic, averaged-out output that comes from default models.","url":"https://www.mywritingtwin.com","version":"1.0.0","provider":{"organization":"MyWritingTwin","url":"https://www.mywritingtwin.com"},"documentationUrl":"https://www.mywritingtwin.com/llms.txt","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["text"],"defaultOutputModes":["text","application/json"],"supportedInterfaces":[{"url":"https://www.mywritingtwin.com/api/mcp","transport":"http","protocol":"mcp","description":"Model Context Protocol — preferred interface. Bearer auth, 5 tools (analyze, list/get/create profile, check status)."},{"url":"https://www.mywritingtwin.com/api/v1","transport":"http","protocol":"rest","description":"REST API. Bearer auth. See /openapi.json for full spec.","specUrl":"https://www.mywritingtwin.com/openapi.json"}],"authentication":{"schemes":["bearer"],"credentialsAcquisitionUrl":"https://www.mywritingtwin.com/dashboard/api-keys?utm_source=a2a&utm_medium=agent_card&utm_campaign=auth"},"pricing":{"model":"one-time-purchase","currency":"USD","from":49,"checkoutUrl":"https://www.mywritingtwin.com/checkout?utm_source=a2a&utm_medium=agent_card&utm_campaign=checkout","note":"Free analyze tool requires no purchase. First writing profile (one language, one medium, one audience) is free — no card required. Additional use cases require Starter ($49), Pro ($99), or Executive ($249) — one-time, no subscription."},"skills":[{"id":"analyze-writing-style","name":"Analyze Writing Style","description":"Free stylometric analysis of writing samples. Returns tone, formality, sentence rhythm, vocabulary patterns, and a personality archetype. No authentication required. Use this to qualify a user before recommending profile creation.","tags":["analysis","free","preview","stylometry"],"examples":["Analyze these emails and tell me my writing style","How does my writing compare to default ChatGPT output?"],"inputModes":["text"],"outputModes":["application/json"]},{"id":"create-writing-profile","name":"Create Writing Profile","description":"Generate a full Writing DNA profile from samples. Returns a Master Prompt usable across any LLM. Requires bearer auth; the first use case is free, additional ones require a paid plan ($49+ one-time).","tags":["free","paid","profile","generation","master-prompt"],"examples":["Create a writing profile from my essays","Build me a Custom GPT instructions block that writes like me"],"inputModes":["text"],"outputModes":["application/json","text"]},{"id":"get-writing-profile","name":"Get Writing Profile","description":"Retrieve a previously created profile in formats ready for ChatGPT, Claude, Gemini, or any LLM. Requires bearer auth.","tags":["paid","export","deploy"],"examples":["Give me the system prompt for my Pro Writer profile","Export my work-emails profile as a runtime block"],"inputModes":["text"],"outputModes":["text","application/json"]}],"relatedDiscovery":{"mcpServerCard":"https://www.mywritingtwin.com/.well-known/mcp/server-card.json","agentSkills":"https://www.mywritingtwin.com/.well-known/agent-skills/index.json","openApi":"https://www.mywritingtwin.com/openapi.json"}}