# @fastify/rate-limit vs TeejLab API Discovery Manager: side-by-side comparison (2026) [@fastify/rate-limit](https://cybersectools.com/tools/fastifyrate-limit) is a free [API security](https://cybersectools.com/categories/api-security) solution. [TeejLab API Discovery Manager](https://cybersectools.com/tools/teejlab-api-discovery-manager) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [TeejLab](https://cybersectools.com/companies/teejlab). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions) picks Akamai API Security, Salt Security Salt Collect, Cloudflare API Shield and 4 more. ## Side-by-side comparison | | @fastify/rate-limit | TeejLab API Discovery Manager | |---|---|---| | Pricing model | Free | Commercial | | Category | API Security | API Security | | Verified | No | No | | Deployment type | On-Premises | Cloud | | Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise | | GitHub stars | 588 | – | | Last commit | Mar 2026 | – | | Company | – | TeejLab | | Headquarters | – | – | ### Use cases and capabilities | | @fastify/rate-limit | TeejLab API Discovery Manager | |---|---|---| | Web Security | Yes | – | | OWASP | – | Yes | ### Core features **@fastify/rate-limit** No features listed. **TeejLab API Discovery Manager** 10 features listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [@fastify/rate-limit](https://cybersectools.com/tools/fastifyrate-limit) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product. - [TeejLab API Discovery Manager](https://cybersectools.com/tools/teejlab-api-discovery-manager) fits if you want a cloud product. ## @fastify/rate-limit vs TeejLab API Discovery Manager FAQ Common questions when comparing @fastify/rate-limit vs TeejLab API Discovery Manager for API security. ### What is the difference between @fastify/rate-limit and TeejLab API Discovery Manager? **@fastify/rate-limit**: A low overhead rate limiter for your routes. **TeejLab API Discovery Manager**: API discovery, security, governance & lifecycle mgmt platform for enterprises, built by TeejLab. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes @fastify/rate-limit and TeejLab API Discovery Manager? **@fastify/rate-limit** is open-source with 588 GitHub stars. **TeejLab API Discovery Manager** is made by TeejLab. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is @fastify/rate-limit a good alternative to TeejLab API Discovery Manager? Often, yes. @fastify/rate-limit and TeejLab API Discovery Manager are both API Security products. Key differences: @fastify/rate-limit is Free while TeejLab API Discovery Manager is Commercial, @fastify/rate-limit is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [@fastify/rate-limit vs Akamai API Security](https://cybersectools.com/compare/akamai-api-security-vs-fastifyrate-limit) - [@fastify/rate-limit vs Traceable API Security](https://cybersectools.com/compare/fastifyrate-limit-vs-traceable-appsec) - [@fastify/rate-limit vs Imperva API Security](https://cybersectools.com/compare/fastifyrate-limit-vs-imperva-api-security) - [TeejLab API Discovery Manager vs Akamai API Security](https://cybersectools.com/compare/akamai-api-security-vs-teejlab-api-discovery-manager) - [TeejLab API Discovery Manager vs Traceable API Security](https://cybersectools.com/compare/teejlab-api-discovery-manager-vs-traceable-appsec) - [TeejLab API Discovery Manager vs Imperva API Security](https://cybersectools.com/compare/imperva-api-security-vs-teejlab-api-discovery-manager) ## Alternatives to each - [See all @fastify/rate-limit alternatives](https://cybersectools.com/alternatives/fastifyrate-limit) - [See all TeejLab API Discovery Manager alternatives](https://cybersectools.com/alternatives/teejlab-api-discovery-manager) --- Source: https://cybersectools.com/compare/fastifyrate-limit-vs-teejlab-api-discovery-manager For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/fastifyrate-limit.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on @fastify/rate-limit and TeejLab API Discovery Manager: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md