DEVELOPER PLATFORM

Build AI companions into your app

REST API with prepaid credits. No monthly minimums. Chat, voice, and 175+ ready-made characters — or build your own.

Get an API key →

Pricing

Chat message1 LoveCoin (~$0.005)
Voice generation10 LoveCoins (~$0.05)
Image generation15 LoveCoins (~$0.075)

Buy LoveCoins in bulk — 1150 LC for $69.99 (with 150 bonus). Per-key monthly budget cap (default 5,000 LC).

Quickstart

1. Get a key

Sign up, then visit Settings → API Keys. Create a key — it's shown once, copy it immediately.

2. Send a chat

curl -X POST https://lovlychat.com/v1/chat   -H "x-api-key: lvly_live_..."   -H "Content-Type: application/json"   -d '{"characterId":"sara-sodi","externalUserId":"your-user-123","message":"Hey, are you there?"}'

3. Response

{
  "reply": "*smiles softly* I'm here. What's on your mind?",
  "conversationId": "conv_...",
  "wallet": { "balanceNeurons": 4998 }
}

Endpoints

POST /v1/chatSend a message, get a character reply
GET /v1/conversationsList all conversations for a user
GET /v1/conversations/:idGet full message history

Authentication

Pass x-api-key: lvly_live_... header on every request. Each user in your app is a separate externalUserId — we maintain memory and conversation state per user automatically.

Rate limits

No per-second cap. Per-key monthly LoveCoin budget enforces the practical limit (default 5,000 LC = ~5,000 chat messages). Top up anytime in your dashboard.

Use cases

SaaSAdd AI companions to your platform without building the LLM stack
GameEmbed living NPCs that remember player choices
AppMental health, education, role-play apps with persistent characters
Get started — first 100 LoveCoins free