Varnish Cache CLI API

The Varnish Cache CLI management interface provides programmatic control over a running Varnish instance. It is accessible via varnishadm or TCP socket and supports configuration management (VCL load/use/discard), backend health control, cache ban/invalidation, parameter tuning, and process management. Commands can return JSON output with the -j flag.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/varnish-cache"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: varnish:varnish-cache
name: Varnish Cache CLI API
description: The Varnish Cache CLI management interface provides programmatic control over a running Varnish
  instance. It is accessible via varnishadm or TCP socket and supports configuration management (VCL load/use/discard),
  backend health control, cache ban/invalidation, parameter tuning, and process management. Commands can
  return JSON output with the -j flag.
humanURL: https://varnish-cache.org/docs/trunk/reference/varnish-cli.html
tags:
- Cache Management
- Caching
- CLI
- Configuration
- Reverse Proxy
properties:
- type: Documentation
  url: https://varnish-cache.org/docs/trunk/reference/varnish-cli.html
- type: GettingStarted
  url: https://varnish-cache.org/docs/trunk/users-guide/run_cli.html
- type: APIReference
  url: https://varnish-cache.org/docs/trunk/reference/varnishadm.html