Last9

Last9 is a unified observability company that describes itself as made in California since 2020. Its terms name Last9 Inc, governed by Delaware law. It serves developers, SREs and AI agents who need metrics, logs, traces and APM in one place.

The platform has a control plane that routes, transforms and cost-controls telemetry before storage, a Prometheus-compatible engine for high-cardinality metrics (20M+ cardinality per metric cited), correlated logs and traces on OpenTelemetry, and real user monitoring. An MCP server lets coding agents query telemetry. Customers shown include Replit, CleverTap, Pine Labs and Tata 1mg.

• Control plane: route, transform and cost-control logs, metrics and traces before storage.
• High-cardinality metrics: Prometheus-compatible engine with PromQL rules.
• Correlated logs and traces: OpenTelemetry support with no sampling on errors.
• Real user monitoring: Core Web Vitals, session replay and frontend errors.
• Alerting: deduplication, routing and on-call integrations.
• MCP server: coding agents and SREs query telemetry from an IDE or chat.

A Vietnamese payments or e-commerce company can monitor high-cardinality metrics across services during peak sales events. A DevOps team can filter noisy logs before storage to reduce cost. A product team can add real user monitoring for web and mobile apps.

Pay-for-use pricing is stated on the site. The control plane lets teams drop or reroute low-value telemetry before it is stored. High-cardinality dashboards avoid pre-aggregation limits. Last9 lists CNCF Silver membership, AWS Partner status and a 4.8 out of 5 G2 rating, plus 100+ integrations.

High-cardinality metrics from Kubernetes and microservices strain Prometheus-style setups, and teams want control over telemetry cost before storage. AI agents are becoming consumers of observability data through MCP. Last9's customer list includes payments and e-commerce firms in India, a pattern similar to Vietnamese fintech and e-commerce scale-ups.

Made in California since 2020 per its About page; Last9 Inc under Delaware law per its terms. Investor logos shown include Sequoia Capital, Peak XV and Better Capital. Named a Gartner Cool Vendor in AI for SRE and Observability (badge labeled 2025). CNCF Silver Member and AWS Partner.