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Is https-proxy-agent ESM-only? Can you require() it?

An HTTP(s) proxy `http.Agent` implementation for HTTPS

Last verified Sep 9, 2026 against https-proxy-agent@9.1.0. JSON

ESM-only ESM-only since 8.0.0 — last CommonJS version is 7.0.6

https-proxy-agent dropped its CommonJS build in 8.0.0 (March 2026). The last version you can require() on every Node.js version, including 18 and older, is 7.0.6, published Dec 7, 2024.

On Node.js 20.19+, 22.12+ and every newer release, require("https-proxy-agent") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

https-proxy-agent@9.1.0 declares engines ">= 20", so Node.js 18 is outside its supported range regardless of module format.

Latest
9.1.0 (Jun 8, 2026)
Module format
ESM-only
Last CommonJS version
7.0.6
ESM-only since
8.0.0 (Mar 11, 2026)
TypeScript types
Bundled
Node engines
>= 20
Weekly downloads
225.1M
License
MIT

Does https-proxy-agent@9.1.0 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("https-proxy-agent") from a CommonJS file and import "https-proxy-agent" from an ES module.

Runtimerequire("https-proxy-agent")import "https-proxy-agent"
Node.js 18✗ failsERR_REQUIRE_ESM✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4✓ works✓ works

How to import https-proxy-agent

ES modules (import)

import httpsProxyAgent from "https-proxy-agent";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const httpsProxyAgent = require("https-proxy-agent");

// Any Node.js version:
const httpsProxyAgent = await import("https-proxy-agent");

// Or pin the last CommonJS release:
// npm install https-proxy-agent@7.0.6

Module format by version

Derived from the type, main and exports fields of every stable release on npm (39 versions; the newest 39 shown).

VersionsFormatFirst published
8.0.0 – 9.1.0ESM-onlyMar 11, 2026
0.0.1 – 7.0.6CommonJSJul 9, 2013

Frequently asked

Is https-proxy-agent ESM-only?

https-proxy-agent@9.1.0 is ESM-only. https-proxy-agent dropped its CommonJS build in 8.0.0 (March 2026). The last version you can require() on every Node.js version, including 18 and older, is 7.0.6, published Dec 7, 2024.

Which version of https-proxy-agent still supports CommonJS / require()?

7.0.6 is the last version of https-proxy-agent with a CommonJS build. Install it with "npm install https-proxy-agent@7.0.6". Every version from 8.0.0 on is ESM-only.

How do I use https-proxy-agent from a CommonJS file?

Use a dynamic import: const mod = await import("https-proxy-agent"). On Node.js 20.19+, 22.12+ and newer, a plain require("https-proxy-agent") also works for ESM packages that do not use top-level await. Alternatively pin https-proxy-agent@7.0.6.

Does https-proxy-agent work in Bun?

Yes. import "https-proxy-agent" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does https-proxy-agent ship TypeScript types?

Yes. https-proxy-agent bundles its own type declarations; no @types package is needed.

Links

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