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Built a directory of 2,700+ free public APIs, filterable by auth/CORS/HTTPS — getfreeapis.com

I kept running into the same problem building side projects: half the "free API" lists floating around are outdated, link to dead endpoints, or don't tell you upfront whether you need a key or if CORS will block you from calling it client-side. So I built GetFreeAPIs. What it does: 2,700+ APIs, filtered by whether they need a key, support CORS, and run over HTTPS Every listing gets checked automatically so dead links don't waste your time Collections for common cases (no-key-needed, bro

五维评分

付费意愿
18
需求真实度
62
个人可落地
92
竞争空间
28
新鲜度
45

AI 分析

痛点:网上的“免费 API”清单普遍过期、链接失效,且不提前说明是否需要 API key、是否支持 CORS,开发者做 side project 时反复踩坑、浪费时间筛选。

目标用户:做 side project 的独立开发者、前端/全栈工程师、黑客松参与者、需要快速找可用公开数据源的早期产品团队。

证据:I kept running into the same problem building side projects: half the "free API" lists floating around are outdated, link to dead endpoints, or don't tell you upfront whether you need a key or if CORS will block you from calling it client-side. / 2,700+ APIs, filtered by whether they need a key, support CORS, and run over HTTPS / Every listing gets checked automatically so dead links don't waste your time

变现:面向 API 供应商的付费收录/置顶与线索导流(B2B 侧收费),而非向开发者收费;辅以赞助位、联盟返佣(如 RapidAPI/云服务商),以及可选的 Pro 订阅(API 变更/失效邮件告警、CORS 与 uptime 监控、批量导出)。

MVP:两周内做一个「自动体检 + 可筛选目录」:用 cron 脚本每日对 API 清单发探测请求,记录 HTTP 状态、是否 401/403(需 key)、Access-Control-Allow-Origin 头、HTTPS 与响应时延,落库成 JSON;前端用 Next.js 做纯静态筛选页(key/CORS/HTTPS/分类),外加一个「变更告警」邮件订阅表单作为付费点的最小验证。

竞品:public-apis (GitHub 开源清单)、RapidAPI Hub、APIs.guru、Free Public APIs (free-public-apis.com)、APIList.fun

摘要:作者因反复被过期的免费 API 清单坑到,做了 getfreeapis.com:收录 2700+ 公开 API,可按是否需 key、是否支持 CORS、是否 HTTPS 筛选,并自动检测失效链接,另附 CORS 检测、cURL 转换等小工具,无需登录。痛点真实且已被大量开发者共情,但受众本身在找“免费”资源,直接向开发者收费困难,竞争面上还有 public-apis、RapidAPI 等强竞品,更现实的变现路径是向 API 供应商收收录与导流费。