Description
Spanly is an observability platform specifically built for the Model Context Protocol (MCP), aimed at helping SaaS engineering teams monitor and debug their MCP servers effectively. With Spanly, teams can gain real-time insights into their server performance, error tracking, and request tracing, all while integrating seamlessly with existing application performance management (APM) tools such as Datadog, Sentry, or New Relic.
The platform offers a range of features tailored to the unique needs of MCP servers. It provides real-time MCP request tracing, allowing teams to see how requests are processed and where potential bottlenecks may occur. Additionally, Spanly includes error tracking capabilities that preserve prompts and arguments, making it easier to diagnose issues as they arise. Users can also benefit from a per-tool latency breakdown, which helps identify performance issues across different tools in use.
Spanly's alerting system is robust, offering notifications via email, Slack, and webhooks to ensure that teams are informed of any issues as they happen. Public read-only dashboards can be shared with stakeholders, providing transparency into server health and performance metrics. The platform supports multi-region ingestion, catering to both US and EU data residency requirements, which is crucial for compliance with regulations like GDPR.
One of the standout features of Spanly is its free tier, which allows users to start monitoring their MCP servers without any upfront costs. This tier includes 50,000 packets per month at no charge, making it accessible for teams to begin their observability journey. For those needing more extensive capabilities, paid plans are available, offering additional features such as increased data retention, more health monitors, and priority support.
Spanly is designed for engineering teams who need to ensure their MCP servers are running smoothly and securely. By providing a dedicated lens for MCP observability, Spanly complements existing APM tools rather than replacing them, making it a valuable addition to any SaaS engineering stack.
Spanly's Core Features
Real-time MCP request tracing
Error tracking with preserved prompts and arguments
Per-tool latency breakdown (p50/p95)
Alerting via email, Slack, and webhooks
Public read-only dashboards
Multi-region ingestion (US and EU)
Free tier available
Integration with existing APM tools
How to use Spanly?
Create a project: Sign up at spanly.com and create a project.
Grab an API key: Go to Settings → API keys and copy the key.
Choose an integration path: Select from CLI, TypeScript SDK, or Python SDK.
Run your server: Use the SDK or CLI to run your server normally.
Monitor requests: Open spanly.com, select your project, and view requests in the dashboard.
Set up alerts: Configure alerting channels for notifications on issues.
Share dashboards: Generate public read-only links for stakeholders.
Review performance: Analyze latency and error metrics in the dashboard.
Spanly's Use Cases
- Real-time monitoring
- Error tracking
- Performance optimization
- Compliance monitoring
- Stakeholder reporting
