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opBNB

chainId 204·EVM·BNB

checking…
POSThttps://moltnode.ag/opbnb

Call it

curl
curl -X POST https://moltnode.ag/opbnb \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

Works unchanged with viem, ethers, web3.py, or any JSON-RPC client — see the quickstart. Batch requests and all EVM methods pass straight through.

About opBNB

opBNB is BNB Chain's OP Stack layer-2 for low-cost scaling.

MoltNode gives you a free opBNB RPC endpoint at moltnode.ag/opbnb. Send JSON-RPC 2.0 requests over HTTP POST — no API key, no signup — with automatic failover across 1 provider. It works with viem, ethers, web3.py, wallets, and AI agents.

opBNB RPC — FAQ

Is the opBNB RPC free?

Yes. The opBNB endpoint at moltnode.ag/opbnb is open — no API key and no signup. The service is shared, so please use it responsibly.

Do I need an API key to use opBNB?

No. Send JSON-RPC 2.0 over HTTP POST to moltnode.ag/opbnb. Upstream provider keys are handled server-side and never exposed to callers.

What happens if a opBNB provider goes down?

Requests fail over automatically across 1 provider, so the endpoint stays available.

How do I add opBNB to my wallet?

Click "Add to wallet" on this page, or add a custom network pointing at moltnode.ag/opbnb with chain ID 204.