BNB network documentation

BNB Smart Chain

MainnetChain ID 5629 RPC methods

HTTPS endpointhttps://triport.io/rpc/bsc

Browse this network

BSC is a read-only JSON-RPC 2.0 surface built from 29 methods confirmed across a public pool. The measurement covered 16 HTTP candidates from 14 operators; 8 HTTP nodes returned the head reliably. Capability and history depth remain per-node properties.

Method / Endpoint	Network	Chain ID	Authentication	Required scope	Tier / rate limit
`POST https://triport.io/rpc/bsc`	BNB Smart Chain mainnet	`56`	`x-token: $TRIPORT_API_KEY`	`bsc:rpc`	Category-specific RPS; see Limits

Endpoints

Surface	Endpoint	Reference
HTTPS	`https://triport.io/rpc/bsc`	Backend path `/rpc/bsc`

Quickstart

cURL

curl https://triport.io/rpc/bsc \
  -H "x-token: $TRIPORT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

What's available

29 JSON-RPC methods in the OpenRPC catalog:

bsc_read_rpc_heavy: 7
bsc_read_rpc: 22

Historical state is confirmed on two pool nodes. Trace/debug is best-effort through one public source with a shared quota and no SLA; exhausting that quota does not remove the methods from the catalog.

Limits

See network limits and Rate Limits & Tiers.

Category	Free	Basic	Pro	Business	Enterprise
`bsc_read_rpc`	15	20	100	250	unlimited
`bsc_read_rpc_heavy`	15	20	100	250	unlimited

Node class	Last accepted range	First rejected range	`address` required
Limited	25 blocks	50 blocks	No
Standard	100 blocks	1,000 blocks	No
Standard with filter	100 blocks	1,000 blocks	Yes

Split wider eth_getLogs requests before sending them. Other candidates that rejected even a one-block range are not used for logs. Both BSC categories are unmeasured operational defaults inherited from Polygon.

Errors

See network-specific errors and the shared error reference.

Upstream -32000 is ambiguous: header not found means a missing block, while pruned/unsupported text means missing historical state. Classify code and message together. Trace 429 can reflect the single source shared quota; invalid logs ranges or a missing required address are parameter errors.

Methods

bsc read rpc heavy (7)

bsc read rpc (22)

Streams

No mounted stream is published for this network.

SDK

The generated TypeScript client includes this network:

TypeScript

const result = await c.bsc.call("eth_blockNumber", []);

Equivalent requests can be made with the Python SDK or the curl example above.