MCP-Billing vs AUDR by Chargebee
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 AUDR by Chargebee leads with 335 upvotes
OAuth 2.1 + usage-based Stripe billing for MCP servers
MCP-Billing is a comprehensive, self-hosted boilerplate designed for developers building secure, scalable APIs and server-based applications. It integrates full OAuth 2.1 with PKCE for robust authentication, API key management with zero-downtime rotation, and usage-based billing powered by Stripe. Its modular architecture includes 7 core modules and over 300 tests, ensuring reliability and flexibility for different project needs. The open-source metering core available on npm allows for transparent customization and integration, while the included Stripe billing simplifies monetization strategies for SaaS providers. Suitable for teams seeking a secure, customizable foundation, MCP-Billing offers a one-time purchase model with no revenue sharing or platform lock-in, making it an attractive choice for long-term projects that require control and scalability.
Pros
- Complete self-hosted solution with robust security features
- Integration of OAuth 2.1 + PKCE for secure authentication
- Usage-based billing with Stripe, flexible and developer-friendly
- Open-source metering core on npm for transparency and customization
- One-time purchase with no revenue sharing or lock-in
Cons
- Primarily targeted at experienced developers comfortable with self-hosting
- Requires setup and maintenance of hosting environment
- Limited information on ongoing support or updates post-purchase
Best for
- • Building secure API services with integrated billing
- • Developing SaaS platforms requiring usage-based monetization
- • Creating custom authentication systems with OAuth 2.1
- • Implementing rate limiting and API key management for high-volume applications
Pricing: MCP-Billing is sold as a one-time purchase for €79, with the core metering component being free and open source. There are no recurring fees or revenue sharing, but users must host and maintain the system themselves.
Open standard for tracking agent run costs
AUDR by Chargebee is an innovative open standard designed to meticulously track agent run costs across diverse systems. Inspired by telecom's Call Detail Records, AUDR provides a unified JSON schema that facilitates seamless data exchange between harnesses, routers, and billing systems. Its core principles—shared run IDs, clear ownership of fields, and strict conflict resolution—ensure accurate and consistent cost tracking. This makes AUDR particularly valuable for organizations seeking transparency and granularity in agent operation costs, especially in complex, multi-system environments. Its open standard nature encourages widespread adoption and interoperability, empowering developers and system integrators to build more efficient, cost-aware workflows. By adopting AUDR, companies can improve cost attribution, optimize resource usage, and enhance financial accountability across their tech stacks.
Pros
- Open standard promotes interoperability across various systems
- Clear schema and strict merge rules ensure data consistency
- Facilitates detailed cost tracking for agent runs
- Inspired by proven telecom standards, ensuring reliability
- Encourages community-driven development and adoption
Cons
- Being an open standard, implementation complexity may vary
- Lacks built-in tooling or integrations at the moment
- Requires adoption and standardization across teams for maximum benefit
Best for
- • Cost attribution for multi-system agent workflows
- • Monitoring and optimizing agent run expenses
- • Ensuring transparency in billing and resource usage
- • Developing interoperable systems that track operational costs
Pricing: Pricing not verified