Add BlockReq public RPC endpoints (11 chains)

[luanxu-dev]

Summary

Add BlockReq public RPC endpoints for 11 EVM chains.

BlockReq is a multi-region blockchain RPC platform with nodes in Phoenix (US) and Helsinki (EU), geo-routed via Cloudflare for low latency globally.

Added endpoints

Chain	Chain ID	HTTP RPC	WebSocket
Ethereum Mainnet	1	https://eth-mainnet.blockreq.com/v1/rpc/public	wss://eth-mainnet.blockreq.com/v1/ws/public
BNB Smart Chain	56	https://bsc-mainnet.blockreq.com/v1/rpc/public	wss://bsc-mainnet.blockreq.com/v1/ws/public
Polygon PoS	137	https://polygon-mainnet.blockreq.com/v1/rpc/public	wss://polygon-mainnet.blockreq.com/v1/ws/public
Base	8453	https://base-mainnet.blockreq.com/v1/rpc/public	wss://base-mainnet.blockreq.com/v1/ws/public
Arbitrum One	42161	https://arb-mainnet.blockreq.com/v1/rpc/public	wss://arb-mainnet.blockreq.com/v1/ws/public
Ethereum Sepolia	11155111	https://eth-sepolia.blockreq.com/v1/rpc/public	wss://eth-sepolia.blockreq.com/v1/ws/public
BNB Testnet	97	https://bsc-testnet.blockreq.com/v1/rpc/public	wss://bsc-testnet.blockreq.com/v1/ws/public
Arbitrum Sepolia	421614	https://arb-sepolia.blockreq.com/v1/rpc/public	wss://arb-sepolia.blockreq.com/v1/ws/public
Base Sepolia	84532	https://base-sepolia.blockreq.com/v1/rpc/public	wss://base-sepolia.blockreq.com/v1/ws/public
Polygon Amoy	80002	https://polygon-amoy.blockreq.com/v1/rpc/public	wss://polygon-amoy.blockreq.com/v1/ws/public
Ethereum Hoodi	560048	https://eth-hoodi.blockreq.com/v1/rpc/public	wss://eth-hoodi.blockreq.com/v1/ws/public

Infrastructure

• Archive nodes — full historical data on all chains
• Multi-region — US (Phoenix, AZ) + EU (Helsinki) with automatic geo-routing
• No API key required — rate limited to 20 req/s per IP
• WebSocket support — persistent connections for subscriptions

[github-actions]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

[luanxu-dev]

Hi maintainers

We're the team behind BlockReq, a multi-region EVM RPC platform. We'd love to have our public endpoints included in the list — would you be able
to review and merge this PR?

A few notes on our public endpoint specs:

• Rate limit: 20 requests/second per IP (no API key required)
• Infrastructure: Self-hosted archive nodes across two regions — Phoenix (US) and Helsinki (EU), geo-routed via Cloudflare
• Data type: Archive nodes on all chains (full historical data available)
• WebSocket: Supported on all chains, with a limit of 2 concurrent connections per IP
• Method restrictions: The following method namespaces are not available on the public endpoint: debug_, trace_, txpool_, admin_,
  personal_, miner_, clique_, les_. Full access (including debug/trace) requires an API key.

Happy to answer any questions or make changes if needed. Thanks for your time!