Account & Chain Activity

Subscan API

Name: Subscan API
Brand: PubFi
Availability: InStock

Subscan API gives your app or agent a reliable way to read chain activity and account state across 70+ chains, including Polkadot, Kusama, Moonbeam, Midnight, and more, so you can ship user-facing crypto features without building core indexing first.

All products Read API docs

What your team gets

Pull chain activity, balances, governance, staking, and asset data from Substrate and selected EVM ecosystems through one production-ready API surface.

Get explorer-grade chain data without running your own indexing stack
Support wallet views, portfolio tracking, governance flows, and account monitoring
Use authenticated endpoints with predictable rate-limit behavior

Best for these workflows

Wallet, explorer, and portfolio experiences
Governance, staking, and account intelligence workflows
Agents that need dependable chain lookups before taking action

Usage Tutorial

Quick Start

curl --location 'https://pubfi.ai/api/gateway/subscan/polkadot/api/scan/account/tokens' \
  --header 'Authorization: Bearer pf_sk_live_xxx' \
  --header 'Content-Type: application/json' \
  --data '{
    "address": "13YMK2efcJncYrXsaJCvHbaaDt3vfubdn75r4hdVxcggU4n2"
  }'

Recommended for product integration. Call the PubFi gateway with your own PubFi API key, and keep usage tracking unified in the dashboard.

Open reference: Subscan Conventions

Core data surfaces

accounts and balancesblocks and extrinsicsgovernance and stakingassets, tokens, and EVM data

These are the main objects and resources your product or agent can read directly when integrating this API.