BNB Smart Chain RPC, on the same interface as every other chain.

BNB Smart Chain is EVM-compatible with short block times, which makes it unusually punishing for polling-based integrations. Iteradian shows average and P95 latency for your own traffic, so you can tell the difference between your poll loop being slow and the chain being slow.

1. 01

   Create an API key

   Sign up for Iteradian and create a key in the dashboard. Production keys are prefixed itrd_live_ and test keys itrd_test_. The plaintext key is shown exactly once, so store it in a secret manager — never in source control.

2. 02

   Send a JSON-RPC 2.0 request

   curl -X POST https://api.iteradian.com/rpc/v1/bsc-mainnet \
     -H "Content-Type: application/json" \
     -H "X-Api-Key: itrd_live_YOUR_KEY" \
     -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

   const res = await fetch("https://api.iteradian.com/rpc/v1/bsc-mainnet", {
     method: "POST",
     headers: {
       "Content-Type": "application/json",
       "X-Api-Key": process.env.ITERADIAN_API_KEY!,
     },
     body: JSON.stringify({
       jsonrpc: "2.0",
       id: 1,
       method: "eth_blockNumber",
       params: [],
     }),
   });
   
   const { result } = await res.json();

   import os, requests
   
   res = requests.post(
       "https://api.iteradian.com/rpc/v1/bsc-mainnet",
       headers={"X-Api-Key": os.environ["ITERADIAN_API_KEY"]},
       json={"jsonrpc": "2.0", "id": 1, "method": "eth_blockNumber", "params": []},
   )
   
   print(res.json()["result"])

3. 03

   Handle throttling

   Requests past your plan’s per-second rate or concurrency ceiling return HTTP 429 with JSON-RPC error code -32005 and a retryAfter value in error.data. Past the monthly allowance, requests run as metered overage until the plan’s overage cap, then return 429 with -32007. Throttled requests are recorded in your usage and request log too — nothing is dropped silently.

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