Reply Forge

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🔑 Add your Grok API key

Get your key at console.x.ai. Saved in browser only.

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Paste tweet text

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💡 Copy text from X (tap ···)

\n\nReply vibe\n\n

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Crafting viral reply…

\n ✦ Your Reply\n —\n

Key facts used

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\n\n\n\n`;\n\nexport default async function handler(req: Request): Promise {\nconst url = new URL(req.url);\n\nif (req.method === “GET”) {\nreturn new Response(HTML, { headers: { “Content-Type”: “text/html” } });\n}\n\nif (req.method === “POST” && url.pathname === “/api”) {\ntry {\nconst { key, input, tone } = await req.json();\n\n```\n if (!key) return Response.json({ error: \"No API key\" }, { status: 400 });\n if (!input) return Response.json({ error: \"No input\" }, { status: 400 });\n\n const toneMap: Record = {\n energetic: \"enthusiastic, punchy, bold energy\",\n witty: \"clever, humorous, playful\",\n authoritative: \"confident, expert, data-driven\",\n supportive: \"warm, affirming, encouraging\",\n contrarian: \"bold, challenging, pushback\"\n };\n\n const systemPrompt = `You are creating VIRAL X (Twitter) replies that get engagement.\n```\n\nRULES:\n\n- Max 50 words total\n- Tone: ${toneMap[tone] || toneMap.energetic}\n- Use facts ONLY from the post — never invent\n- Sound like a REAL PERSON, not AI — be conversational, natural, punchy\n- Add 2-3 relevant emojis strategically (scatter throughout, not at start)\n- Use line breaks for emphasis and readability\n- Make it VIRAL: attention-grabbing, shareable, quote-tweet worthy\n\nVOICE STYLE:\n\n- Short punchy sentences\n- Occasional fragments for impact\n- Real person energy — not corporate or robotic\n- Strategic CAPS for emphasis when it hits\n- Use “—” for dramatic pauses\n- Natural human rhythm\n\nOutput ONLY JSON: {“reply”:“your reply with emojis and line breaks”,“keyFacts”:[“fact1”,“fact2”]}`;\n\n```\n const grokRes = await fetch(\"https://api.x.ai/v1/chat/completions\", {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n \"Authorization\": `Bearer ${key}`\n },\n body: JSON.stringify({\n model: \"grok-2-latest\",\n messages: [\n { role: \"system\", content: systemPrompt },\n { role: \"user\", content: input }\n ],\n temperature: 0.8,\n max_tokens: 400\n })\n });\n\n if (!grokRes.ok) {\n const errorData = await grokRes.json().catch(() => ({}));\n return Response.json({\n error: errorData?.error?.message || `Grok API error ${grokRes.status}`\n }, { status: 502 });\n }\n\n const grokData = await grokRes.json();\n const raw = grokData?.choices?.[0]?.message?.content?.trim() || \"\";\n\n if (!raw) return Response.json({ error: \"Empty response\" }, { status: 502 });\n\n let parsed: any = null;\n try {\n parsed = JSON.parse(raw);\n } catch {\n try {\n const cleaned = raw.replace(/```json|```/g, \"\").trim();\n parsed = JSON.parse(cleaned);\n } catch {\n const match = raw.match(/\\{[\\s\\S]*\\}/);\n if (match) {\n try {\n parsed = JSON.parse(match[0]);\n } catch {\n return Response.json({ error: \"Could not parse\", raw: raw.slice(0, 200) });\n }\n }\n }\n }\n\n if (!parsed) return Response.json({ error: \"No JSON\", raw: raw.slice(0, 200) });\n\n return Response.json(parsed);\n\n} catch (e: any) {\n return Response.json({ error: e.message }, { status: 500 });\n}\n```\n\n}\n\nreturn new Response(“Not found”, { status: 404 });\n}","deleted","label",[100],"permalink","https://www.val.town/x/ChiefP/untitled-9608/code/main.ts","extension","actionData","errors"]