Tailfin offers OpenMeter, a developer‑focused platform that ingests high‑volume events and provides real‑time usage metering, quota enforcement, and usage‑based billing for AI, API, and cloud services. It includes SDKs for popular languages, a no‑code product catalog for flexible pricing, and built‑in limits and notifications to help customers monitor consumption and control costs, with both managed and self‑hosted deployment options.
Funding
$3M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Companies building AI, API, or cloud services need to track usage of events, logs, and metrics in real time to enable usage‑based billing, enforce cost limits, and provide customers with transparent consumption data. Implementing such metering and billing systems manually requires extensive engineering effort, custom integrations, and ongoing maintenance.
Solution
OpenMeter (offered by Tailfin) provides a developer‑focused platform for real‑time usage metering, quota enforcement, and usage‑based billing. It ingests high‑volume events via SDKs for Node.js, Python, Go, and other collectors, then aggregates usage instantly for reporting and billing. The platform includes a flexible, no‑code product catalog that supports plans, credits, add‑ons, and commitments, allowing rapid pricing changes without code deployments. Integrated limits and notifications let customers monitor consumption and prevent cost overruns, while low‑latency enforcement can gate API access at the edge. OpenMeter exposes a REST API and OpenAPI definitions for easy integration with CRMs, payment processors, and other business systems, and offers both managed cloud and self‑hosted Kubernetes deployments with SOC 2 compliance, RBAC, and SSO.
Target Audience
Primary users are engineering teams building AI, API, or cloud products who need to implement usage‑based billing and consumption controls, as well as revenue operations and sales teams that require flexible pricing and quota management.
Features
- SDKs and collectors for Node.js, Python, Go, Kubernetes, OpenTelemetry, LangChain, and more to ingest millions of events per second
- Real‑time aggregation and querying of usage data with millisecond‑level latency
- No‑code product catalog supporting plans, usage‑based pricing, credits, add‑ons, and commitments; pricing updates in minutes
- Built‑in usage limits, quotas, and notifications for cost control and edge‑level access gating
- REST API and OpenAPI specifications with client libraries for easy integration into billing, CRM, and analytics workflows
- Managed cloud service and self‑hosted Kubernetes deployment options, both SOC 2‑type II compliant with RBAC and SSO
- Open source core released under the Apache 2.0 license, enabling customization and community contributions