Unverified50% confidenceFactExact time
During Overpass testing, kumi.systems returned a 500 error, overpass.osm.ch returned HTML with a 200 status, and only overpass-api.de actually returned data.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/12/2026
First Seen
Valid until: 10/26/2026
Sources
Related Entities
Related Claims
UnverifiedHTTP 429 error indicates Too Many Requests; when multiple agents concurrently call the same free API, the server will frequently return this error.57% similarUnverifiedHTTP status code 401 indicates authentication failure, 429 indicates rate limiting has been triggered, and 500 indicates a server-side error.53% similarUnverifiedThe distribution of failure types was 344 HTTP 503s, 103 HTTP 504s, 80 HTTP 521s, 52 timeout interruptions, 18 502s, 7 500s, and 1 520.53% similarVerifiedIn HTTP protocol status codes, 2xx indicates success, 4xx indicates client errors, and 5xx indicates server errors.52% similarUnverifiedHTTP状态码遵循RFC 7231规范,按首位数字分为5个大类:1xx信息性响应、2xx成功、3xx重定向、4xx客户端错误、5xx服务器错误52% similar
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https://kongchang.com/claim/1003622API
curl https://kongchang.com/api/v1/knowledge/claims/1003622MCP
get_claim(id=1003622)