Farbeam
Docs / Data

Base

This page lists what Farbeam reads on Base. Live values are on the Base data page. The API returns the same facts from Get a chain.

PropertyValue
API chain idbase
Chain id8453
Familyevm
Native assetETH
Poll wait16 s after each finished poll, 32 s after a failure
large_transfer_indextrue
native_transfersfalse
sampledfalse
Explorer used in linksbasescan.org

#What is indexed

ERC-20 Transfer logs of the five tokens below, at $100,000 or more. Native ETH on Base is not stored.

#Curated tokens

SymbolAddressDecimals
USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA029136
WETH0x420000000000000000000000000000000000000618
USDbC0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA6
cbBTC0xcbB7C0000aB88B473b1f5aFd9ef808440eed33Bf8
DAI0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb18

The curated tokens page explains the list and its prices.

#Sources

PurposeSource
Primary RPChttps://base.drpc.org
Fallback RPChttps://1rpc.io/base, https://base-rpc.publicnode.com
DEX market dataDexScreener, id base
Contract checksGoPlus, id 8453
Trending poolsGeckoTerminal, id base
TVL and stablecoin matchingDefiLlama, name Base

#Measured values

These figures are a snapshot from the API at 2026-11-04T19:33:40.036Z UTC. They are examples, and they change on every poll. They are not targets.

FieldValue
statusok
head53515735
lag_seconds2
rpc_latency_ms353
tx_count of the last block read201
gas_price_gwei0.006
base_fee_gwei0.005
gas_used_ratio0.088
Seconds between reads, from the recent blocks list17.3
Blocks between reads8.7

#Quirks

  • Native ETH is not indexed. A large ETH transfer on Base leaves no row. Wrapped ETH as WETH does.
  • Two USD Coin contracts. USDC is the native Circle token. USDbC is the older bridged token. Both are priced as usd-coin. Filter with token_address if you need one, or use token in ["USDC", "USDbC"] for both.
  • **cbBTC is priced as wrapped-bitcoin.** There is no separate cbBTC price feed in this service.
  • Shared WETH address. 0x4200000000000000000000000000000000000006 is also the WETH address on OP Mainnet. Always pair an address with a chain.
  • Row volume. Base produced more rows than any other chain in early data. On 2026-11-04 UTC, the stats endpoint showed 2,012 Base rows against 689 Ethereum rows over about 27 minutes. Many are hops of one route, so read transfers vs trades before you sum them.

#Try it

curl -s "https://farbeamlabs.com/api/v1/chains/base"
const res = await fetch("https://farbeamlabs.com/api/v1/chains/base");
const { data } = await res.json();
console.log(data.status.status, data.status.head, data.tokens.length);
import requests

data = requests.get("https://farbeamlabs.com/api/v1/chains/base", timeout=30).json()["data"]
print(data["status"]["status"], data["status"]["head"], len(data["tokens"]))

A rule for this chain, from the Beamline examples style: chain == "base" and token == "cbBTC" and usd >= 500k.