Baselime is an observability platform specializing in monitoring and debugging serverless applications and large language model (LLM) based systems. Founded in 2022 by Boris Tane and Adrien Gillon, the company emerged from Y Combinator's Winter 2022 batch. Baselime addresses the unique challenges of distributed, event-driven architectures and AI applications, where traditional monitoring tools often fall short due to the ephemeral nature of serverless functions and the complexity of LLM interactions.
The platform provides developers with a unified view of their applications, combining metrics, logs, and traces in a single interface. It is designed to help engineering teams quickly identify and resolve issues in production environments, from function timeouts and cold starts to LLM hallucinations and token usage anomalies. Baselime's approach emphasizes real-time data processing and a developer-centric workflow, integrating directly into the software development lifecycle.
Serverless Observability
Baselime's core offering focuses on serverless platforms, particularly AWS Lambda. It automatically instruments functions to capture invocations, durations, errors, and resource utilization. The platform uses OpenTelemetry standards to collect telemetry data, ensuring compatibility with a wide range of services and tools. This allows developers to trace requests across multiple functions, API Gateway, DynamoDB, and other AWS services, creating a complete picture of an application's behavior.
The platform's tracing capabilities are particularly notable for their ability to handle high-throughput, short-lived executions. Traditional tracing tools often struggle with the volume and granularity of serverless events, but Baselime is built to ingest and analyze millions of traces in real time. This enables features like distributed tracing and latency breakdowns, which are essential for optimizing performance and reducing costs in pay-per-invocation models.
LLM Application Monitoring
As generative AI applications proliferated, Baselime expanded its focus to include observability for LLM-powered systems. This involves monitoring the entire lifecycle of an AI request, from the user prompt to the model's response. The platform tracks key metrics such as latency, token usage, cost per request, and error rates for integrations with providers like OpenAI and Anthropic.
Baselime provides tools to debug and evaluate LLM behavior, including the ability to view full prompt and response payloads, identify hallucination patterns, and compare outputs across different model versions or parameters. It also supports tracing of complex chains involving multiple LLM calls, vector database lookups, and external API interactions, which are common in retrieval-augmented generation architectures. This helps developers ensure the reliability, quality, and cost-efficiency of their AI features.
Developer Experience and Integration
Baselime prioritizes a seamless developer experience. It offers a command-line interface (CLI) and a web-based dashboard that are designed to be intuitive and fast. The platform supports real-time log streaming and live tailing, allowing developers to observe application behavior as it happens. It also provides powerful search and query capabilities, enabling users to filter and aggregate telemetry data using a SQL-like syntax.
Integration with existing workflows is a key aspect of the platform. Baselime provides SDKs for popular programming languages like TypeScript, Python, and Go, and it can be deployed via Infrastructure as Code tools such as Terraform. It also integrates with alerting and incident management platforms like Slack and PagerDuty, ensuring that teams are notified of critical issues immediately. The platform's architecture is built on AWS and uses a serverless backend itself, which allows it to scale elastically with customer demand.
Company and Funding
Baselime is headquartered in London, United Kingdom. The company raised a $5.5 million seed funding round in 2022, led by Seedcamp, with participation from Y Combinator and other investors. The founders, Boris Tane and Adrien Gillon, previously worked at companies like Datadog and AWS, bringing experience in the observability and cloud computing sectors. As of 2024, Baselime continues to operate as an independent company, serving a growing customer base of startups and enterprises that rely on serverless and AI technologies. The company's mission is to make observability accessible and actionable for modern application development, reducing the time to resolution for complex production issues.