AvaxScanner C-Chain

Developer APIs & Documentation

REST API endpoints and data services for Avalanche C-Chain (C-Chain) and Avalanche Subnets.

Swagger Docs ↗

Accounts & Balances

Query native AVAX balances, multi-address batch balances, ERC-20 token holdings, and transactions.

GET /api/v1/explorer/address/{address}

Gas Tracker & Oracle

Real-time C-Chain gas prices (Gwei), speed tiers, priority limits, and Avalanche Subnets gas matrix.

GET /api/v1/explorer/gas-matrix

Transactions & Receipts

Retrieve transaction status, gas used, decoded event logs, method IDs, and calldata.

GET /api/v1/explorer/tx/{tx_hash}

Smart Contracts

Fetch verified Solidity source code, ABI interface JSON, and submit contract verifications.

POST /verifycontract

Blocks & Telemetry

Inspect latest blocks, validator builders, gas utilization, and live transaction streams.

GET /api/v1/explorer/feed/stream

ERC-20 Tokens

Access token market caps, total supplies, holder counts, transfer logs, and 24h volume.

GET /api/v1/explorer/tokens

Interactive Request Examples

Select language to preview HTTP integration.

curl -X GET "https://avaxscanner.com/api/v1/explorer/vitals?chain=C-Chain" \
  -H "Accept: application/json"

API Plans & Rate Limits

Plan Tier Rate Limit Daily Quota Networks Pricing
Community Free 10 req / sec 100,000 calls / day C-Chain Mainnet + Avalanche Subnets Free ($0/mo)
Developer Pro 50 req / sec 1,000,000 calls / day C-Chain Mainnet + Avalanche Subnets + Fuji Testnet $49 / mo