Mistral Deploy Integration

Mistral AI Deploy Integration

Overview

Deploy Mistral AI-powered applications to popular platforms with proper secrets management.

Prerequisites

• Mistral AI API keys for production environment
• Platform CLI installed (vercel, fly, or gcloud)
• Application code ready for deployment
• Environment variables documented

Vercel Deployment

Environment Setup

# Add Mistral secrets to Vercel
vercel env add MISTRAL_API_KEY production
# Enter your API key when prompted

# Or use CLI with secret
vercel secrets add mistral-api-key "your-api-key"

# Link to project
vercel link

# Deploy preview
vercel

# Deploy production
vercel --prod

vercel.json Configuration

{
  "env": {
    "MISTRAL_API_KEY": "@mistral-api-key"
  },
  "functions": {
    "api/**/*.ts": {
      "maxDuration": 60
    }
  },
  "regions": ["iad1", "sfo1"]
}

Vercel Edge Function Example

// api/chat/route.ts (Next.js App Router)
import { NextRequest } from 'next/server';
import Mistral from '@mistralai/mistralai';

const client = new Mistral({
  apiKey: process.env.MISTRAL_API_KEY!,
});

export async function POST(request: NextRequest) {
  const { messages } = await request.json();

  const stream = await client.chat.stream({
    model: 'mistral-small-latest',
    messages,
  });

  const encoder = new TextEncoder();
  const readable = new ReadableStream({
    async start(controller) {
      for await (const event of stream) {
        const content = event.data?.choices?.[0]?.delta?.content;
        if (content) {
          controller.enqueue(encoder.encode(`data: ${JSON.stringify({ content })}\n\n`));
        }
      }
      controller.enqueue(encoder.encode('data: [DONE]\n\n'));
      controller.close();
    },
  });

  return new Response(readable, {
    headers: {
      'Content-Type': 'text/event-stream',
      'Cache-Control': 'no-cache',
      'Connection': 'keep-alive',
    },
  });
}

Fly.io Deployment

fly.toml Configuration

app = "my-mistral-app"
primary_region = "iad"

[env]
  NODE_ENV = "production"
  LOG_LEVEL = "info"

[http_service]
  internal_port = 3000
  force_https = true
  auto_stop_machines = true
  auto_start_machines = true
  min_machines_running = 1

[http_service.concurrency]
  type = "connections"
  hard_limit = 100
  soft_limit = 80

[[services.http_checks]]
  interval = 10000
  timeout = 2000
  path = "/health"

Deploy to Fly.io

# Set Mistral secrets
fly secrets set MISTRAL_API_KEY="your-api-key"

# Deploy
fly deploy

# View logs
fly logs

# Scale
fly scale count 2 --region iad

Google Cloud Run

Dockerfile

FROM node:20-slim AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
RUN npm run build

FROM node:20-slim
WORKDIR /app
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./

ENV NODE_ENV=production
EXPOSE 8080
CMD ["node", "dist/index.js"]

Deploy Script

#!/bin/bash
# deploy-cloud-run.sh

PROJECT_ID="${GOOGLE_CLOUD_PROJECT}"
SERVICE_NAME="mistral-service"
REGION="us-central1"

# Create secret in Secret Manager
echo -n "your-api-key" | gcloud secrets create mistral-api-key --data-file=-

# Grant Cloud Run access to secret
gcloud secrets add-iam-policy-binding mistral-api-key \
  --member="serviceAccount:${PROJECT_ID}-compute@developer.gserviceaccount.com" \
  --role="roles/secretmanager.secretAccessor"

# Build and push image
gcloud builds submit --tag gcr.io/$PROJECT_ID/$SERVICE_NAME

# Deploy to Cloud Run
gcloud run deploy $SERVICE_NAME \
  --image gcr.io/$PROJECT_ID/$SERVICE_NAME \
  --region $REGION \
  --platform managed \
  --allow-unauthenticated \
  --set-secrets="MISTRAL_API_KEY=mistral-api-key:latest" \
  --memory 512Mi \
  --cpu 1 \
  --timeout 60s \
  --concurrency 80

Environment Configuration Pattern

// config/mistral.ts
interface MistralConfig {
  apiKey: string;
  model: string;
  timeout: number;
  maxRetries: number;
}

export function getMistralConfig(): MistralConfig {
  const env = process.env.NODE_ENV || 'development';

  return {
    apiKey: process.env.MISTRAL_API_KEY!,
    model: process.env.MISTRAL_MODEL || 'mistral-small-latest',
    timeout: parseInt(process.env.MISTRAL_TIMEOUT || '30000'),
    maxRetries: parseInt(process.env.MISTRAL_MAX_RETRIES || '3'),
  };
}

Health Check Endpoint

// api/health.ts
import Mistral from '@mistralai/mistralai';

export async function GET() {
  const start = Date.now();

  try {
    const client = new Mistral({ apiKey: process.env.MISTRAL_API_KEY! });
    await client.models.list();

    return Response.json({
      status: 'healthy',
      services: {
        mistral: {
          connected: true,
          latencyMs: Date.now() - start,
        },
      },
      timestamp: new Date().toISOString(),
    });
  } catch (error) {
    return Response.json({
      status: 'degraded',
      services: {
        mistral: {
          connected: false,
          latencyMs: Date.now() - start,
          error: 'Connection failed',
        },
      },
      timestamp: new Date().toISOString(),
    }, { status: 503 });
  }
}

Instructions

Step 1: Choose Deployment Platform

Select the platform that best fits your infrastructure needs.

Step 2: Configure Secrets

Store Mistral API keys securely using the platform's secrets management.

Step 3: Deploy Application

Use the platform CLI to deploy your application.

Step 4: Verify Health

Test the health check endpoint to confirm Mistral connectivity.

Output

• Application deployed to production
• Mistral secrets securely configured
• Health check endpoint functional
• Environment-specific configuration in place

Error Handling

Examples

Quick Deploy Script

#!/bin/bash
# Platform-agnostic deploy helper
case "$1" in
  vercel)
    vercel env add MISTRAL_API_KEY production <<< "$MISTRAL_API_KEY"
    vercel --prod
    ;;
  fly)
    fly secrets set MISTRAL_API_KEY="$MISTRAL_API_KEY"
    fly deploy
    ;;
  cloudrun)
    gcloud run deploy mistral-app \
      --set-env-vars="MISTRAL_API_KEY=$MISTRAL_API_KEY"
    ;;
  *)
    echo "Usage: $0 {vercel|fly|cloudrun}"
    ;;
esac

Resources

• Vercel Documentation
• Fly.io Documentation
• Cloud Run Documentation
• Mistral AI API Reference

Next Steps

For event handling, see mistral-webhooks-events.