Prometheus:RemoteReadAPI
lastmod 2026-11-10created 2025-12-023 edits
Prometheus Remote Read API is an interface through which Prometheus reads time series data kept in external storage at query time. When a remote read endpoint is specified in the configuration, data that a PromQL query needs but that is not available locally is fetched from the remote side and merged. Requests and responses use HTTP messages serialized with Protocol Buffers and compressed with Snappy, and it is used together with Remote Write for long-term storage integration.