Skip to main content

Cloud Exporter

The CloudExporter sends traces to Mastra Cloud for centralized monitoring and team collaboration. It's automatically enabled when using the default observability configuration with a valid access token.

When to Use CloudExporter​

CloudExporter is ideal for:

  • Production monitoring - Centralized trace visualization
  • Team collaboration - Share traces across your organization
  • Advanced analytics - Insights and performance metrics
  • Zero maintenance - No infrastructure to manage

Configuration​

Prerequisites​

  1. Mastra Cloud Account: Sign up at cloud.mastra.ai
  2. Access Token: Generate in Mastra Cloud → Settings → API Tokens
  3. Environment Variables: Set your credentials:
.env
MASTRA_CLOUD_ACCESS_TOKEN=mst_xxxxxxxxxxxxxxxx

Basic Setup​

src/mastra/index.ts
import { Mastra } from "@mastra/core";
import { CloudExporter } from "@mastra/core/ai-tracing";

export const mastra = new Mastra({
  observability: {
    configs: {
      production: {
        serviceName: "my-service",
        exporters: [
          new CloudExporter(), // Uses MASTRA_CLOUD_ACCESS_TOKEN env var
        ],
      },
    },
  },
});

Automatic Configuration​

When using the default observability configuration, CloudExporter is automatically included if the access token is set:

export const mastra = new Mastra({
  observability: {
    default: { enabled: true }, // Automatically includes CloudExporter if token exists
  },
});

Complete Configuration​

new CloudExporter({
  // Optional - defaults to env var
  accessToken: process.env.MASTRA_CLOUD_ACCESS_TOKEN,

  // Optional - for self-hosted Mastra Cloud
  endpoint: "https://cloud.your-domain.com",

  // Batching configuration
  maxBatchSize: 1000, // Max spans per batch
  maxBatchWaitMs: 5000, // Max wait before sending batch

  // Diagnostic logging
  logLevel: "info", // debug | info | warn | error
});

Viewing Traces​

Mastra Cloud Dashboard​

  1. Navigate to cloud.mastra.ai
  2. Select your project
  3. Go to Observability → Traces
  4. Use filters to find specific traces:
    • Service name
    • Time range
    • Trace ID
    • Error status

Features​

  • Trace Timeline - Visual execution flow
  • Span Details - Inputs, outputs, metadata
  • Performance Metrics - Latency, token usage
  • Team Collaboration - Share trace links

Performance​

info

CloudExporter uses intelligent batching to optimize network usage. Traces are buffered and sent in batches, reducing overhead while maintaining near real-time visibility.

Batching Behavior​

  • Traces are batched up to maxBatchSize (default: 1000)
  • Batches are sent when full or after maxBatchWaitMs (default: 5 seconds)
  • Failed batches are retried with exponential backoff
  • Graceful degradation if Mastra Cloud is unreachable