Polygon API

Polygon PoS remains an archive product on keyed private endpoints. The public trial at /v1/rpc/public does not promise deep history, debug, or trace.

Endpoint

Item	Value
Network	Polygon PoS Mainnet
Protocol	EVM JSON-RPC 2.0
Chain ID	`137` (`0x89`)
Public HTTPS	`https://polygon-bor-rpc.blockreq.com/v1/rpc/public`
Private HTTPS	`https://polygon-bor-rpc.blockreq.com/v1/rpc/BRQ1P0000000000000000000000000000000000000000000000000000000`
WSS	`wss://polygon-bor-rpc.blockreq.com/v1/rpc/BRQ1P0000000000000000000000000000000000000000000000000000000` when enabled

Access tiers

Access	What it provides
Keyed / private (`/v1/rpc/BRQ1P0000000000000000000000000000000000000000000000000000000`)	Archive: deep history, `eth_getProof`, and debug/trace where supported
Public trial (`/v1/rpc/public`)	Restricted trial. No deep history, debug, or trace. Filter methods are rejected. History is limited to about 1024 blocks, including historical `eth_getProof`. Create an endpoint for full archive access.

Core Methods

Use EVM JSON-RPC Methods for the shared catalog. Archive, debug, and trace rows below document the keyed product.

Capability	Methods	Access
Latest state	`eth_chainId`, `eth_blockNumber`, `eth_call`, `eth_getBalance`	Public trial or keyed
All history	old-block `eth_call`, `eth_getCode`, `eth_getStorageAt`, `eth_getProof`	API key / private endpoint
Logs and blocks	`eth_getLogs`, `eth_getBlockByNumber`, `eth_getBlockReceipts`	Public trial is window-limited; keyed archive for deep ranges
Trace/debug	`debug_traceCall`, `debug_traceTransaction`, `trace_block`, `trace_filter`, `trace_transaction`	API key / private endpoint

Public trial example:


curl -X POST https://polygon-bor-rpc.blockreq.com/v1/rpc/public \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

Keyed archive example (eth_getProof requires an API key; it is not available on /v1/rpc/public):


curl -X POST https://polygon-bor-rpc.blockreq.com/v1/rpc/BRQ1P0000000000000000000000000000000000000000000000000000000 \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getProof","params":["0x0000000000000000000000000000000000000000",[],"latest"],"id":1}'