Rinkeby deprecation

Last updated May 5, 2026 Though Cloudflare's Ethereum Gateway launched with support for the Rinkeby testnet, Rinkeby did not run through The Merge ↗︎ and - as a result - will no longer be a reliable staging environment for mainnet.

Cloudflare will be deprecating support for Rinkeby on January 30, 2023.

Migration

To avoid any issues with your Web3 development or debugging, you should switch over to the Sepolia testnet, which is fully supported with your Ethereum Gateway.

To migrate, you should update the endpoints you use when reading from or writing to the Ethereum network.

For example, you might have been using the previous endpoints to interact with your Ethereum Gateway.

Previous curlbash

curl https://web3-trial.cloudflare-eth.com/v1/rinkeby \
--header 'Content-Type: application/json' \
--data '{
  "jsonrpc": "2.0",
  "method": "eth_getBlockByNumber",
  "params": ["0x2244", true],
  "id": 1
}'

Previous JS Fetch APIjs

await fetch(
  new Request('https://web3-trial.cloudflare-eth.com/v1/rinkeby', {
    method: 'POST',
    body: JSON.stringify({
      jsonrpc: '2.0',
      method: 'eth_getBlockByNumber',
      params: ['0x2244', true],
      id: 1,
    }),
    headers: {
      'Content-Type': 'application/json',
    },
  })
).then(resp => {
  return resp.json();
});

To migrate away from Rinkeby, change the end of your endpoint to use another testnet.

New curlbash

curl https://web3-trial.cloudflare-eth.com/v1/sepolia \
--header 'Content-Type: application/json' \
--data '{
  "jsonrpc": "2.0",
  "method": "eth_getBlockByNumber",
  "params": ["0x2244", true],
  "id": 1
}'

New JS Fetch APIjs

await fetch(
  new Request('https://web3-trial.cloudflare-eth.com/v1/sepolia', {
    method: 'POST',
    body: JSON.stringify({
      jsonrpc: '2.0',
      method: 'eth_getBlockByNumber',
      params: ['0x2244', true],
      id: 1,
    }),
    headers: {
      'Content-Type': 'application/json',
    },
  })
).then(resp => {
  return resp.json();
});

Was this helpful?

YesNo

On this page

Docs

{"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/web3/ethereum-gateway/reference/rinkeby-deprecation/#page","headline":"Rinkeby deprecation","description":"Deprecation notice for the Rinkeby test network.","url":"https://developers.cloudflare.com/web3/ethereum-gateway/reference/rinkeby-deprecation/","inLanguage":"en","image":"https://developers.cloudflare.com/web3/ethereum-gateway/reference/rinkeby-deprecation/og.png?v=e3ac60cec79e29e7","dateModified":"2026-05-05","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. Build, secure, and scale without managing infrastructure","url":"https://www.cloudflare.com/","sameAs":["https://github.com/cloudflare","https://www.linkedin.com/company/cloudflare","https://x.com/cloudflare"],"logo":{"@type":"ImageObject","url":"https://developers.cloudflare.com/logo.svg"},"address":{"@type":"PostalAddress","streetAddress":"101 Townsend St","addressLocality":"San Francisco","addressRegion":"CA","postalCode":"94107","addressCountry":"US"},"contactPoint":[{"@type":"ContactPoint","contactType":"Customer Support","url":"https://support.cloudflare.com/","availableLanguage":["English"]},{"@type":"ContactPoint","contactType":"Sales","url":"https://www.cloudflare.com/contact/","availableLanguage":["English"]}]},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"},"keywords":["Migration"]}

description: Ethereum JSON-RPC methods supported by the Cloudflare gateway. title: Supported API methods image: https://developers.cloudflare.com/web3/ethereum-gateway/reference/supported-api-methods/og.png?v=42b48054bca81ae1

Skip to content

Documentation Index
Fetch the complete documentation index at: https://developers.cloudflare.com/web3/llms.txt
Use this file to discover all available pages before exploring further.