Question 1

What makes Zerion's Arc API different from other blockchain APIs?

Accepted Answer

Zerion's Arc API gives you real-time wallet data across Arc and 40+ other chains in one unified format — 4,500+ DeFi protocols tracked, enriched with prices, labels, and metadata so you render it without post-processing.

Question 2

How do I get wallet balances and token positions on Arc?

Accepted Answer

Call the wallet positions endpoint — GET /v1/wallets/{address}/positions/ — with filter[chain_ids]=arc to scope results to Arc. One request returns fungible balances and DeFi positions enriched with prices and metadata, with no Arc node or indexer to run.

Question 3

Does the Zerion API track DeFi positions on Arc?

Accepted Answer

Yes. Deposits, staking, liquidity pools, vaults, lending, and borrowing come back as decoded, protocol-labeled positions across 4,500+ protocols — so you don't have to parse Arc contracts or write per-protocol adapters.

Question 4

How do I get full transaction history on Arc — or across every chain in one feed?

Accepted Answer

The transactions endpoint returns decoded, human-readable Arc history — transfers, trades, bridges, approvals, mints — from a wallet's first transaction to the latest block. Drop the chain filter and the same call returns one merged feed across 40+ chains, with PnL and portfolio value over time available alongside.

Question 5

Does the API decode swaps and bridges on Arc?

Accepted Answer

Yes. Transactions are classified by type — trade, bridge, deposit, withdraw, and more — with the assets and amounts on both sides, prices, and fees, so cross-chain activity touching Arc stays legible without manual log parsing.

Question 6

How do I get started with the Zerion API on Arc?

Accepted Answer

Create a free API key in the Zerion dashboard, make your first Arc call from the interactive docs, then follow the guides for balances, positions, and history. Documentation, code examples, a Discord community, and email support are included — enterprise plans add dedicated account management.

Question 7

What are the rate limits, and how reliable is the Arc API?

Accepted Answer

Plans start free for development and scale to 1,000+ RPS with guaranteed SLAs for enterprise, on infrastructure with 99.9% uptime. Self-serve plans can enable usage-based overages with a spending cap you control, so growing Arc traffic doesn't hit a hard 429 wall.

Question 8

Do you provide real-time Arc data, or is it cached?

Accepted Answer

Zerion API serves real-time Arc data with sub-second latency on critical endpoints like prices and balances. We index Arc continuously, so results update within milliseconds of new blocks.

Question 9

Do you support webhooks for real-time Arc notifications?

Accepted Answer

Yes. Zerion API offers webhook subscriptions for real-time Arc notifications, with custom filters and HTTP callbacks to your application endpoints.

Question 10

How quickly does the Zerion API support new chains?

Accepted Answer

New networks are regularly live in the API from day one — Robinhood Chain and Ink both had full support at mainnet launch. Every chain ships in the same enriched format, so adding the next network to your app is a parameter change, not a new integration.

Question 11

Can AI agents use the Zerion API on Arc?

Accepted Answer

Yes. The API is plain JSON over HTTPS with key auth, and the open-source Zerion CLI wraps it so coding agents like Claude Code can read Arc portfolios, track positions, and act onchain. Agents can also pay per call in stablecoins via AgentCash (x402).

Question 12

How do I migrate to Zerion from another Arc data provider?

Accepted Answer

Endpoint-by-endpoint migration guides cover Zapper, Mobula, Moralis, GoldRush (Covalent), DeBank, Dune SIM, Allium, and OneBalance. Most teams remap in days, because one Zerion call typically replaces several indexer calls — start at developers.zerion.io/migrate-to-zerion.

Question 13

Can I use the Arc API for commercial applications?

Accepted Answer

Yes. All paid plans include commercial usage rights. The Arc API powers wallets, fintech companies, trading platforms, portfolio trackers, and DeFi protocols in production.

Question 14

Was Arc supported from day one?

Accepted Answer

Yes. Zerion is listed as a data indexer for Arc, the open stablecoin-native L1, and covers it from mainnet launch — enriched balances, decoded transactions, and DeFi positions through the same API and key as every other chain.

Arc API

Arc Network Snapshot

Key features

Apps built on Arc with the Zerion API

Pulsar

Uniswap Wallet

Privy

Dynamic

Arc API endpoints

Portfolio Data

One API, every major chain

Why Choose Our
Arc API?

Go live in minutes, not months

Fast everywhere your users are

Balances update in seconds

Scale from one user to millions

Built for Consumer Scale and Enterprise Reliability

Stay ahead with the Zerion API

Simple, transparent tiers

Custom pricing & features

What can you build?

Wallets & Stablecoins

Fintech & Neobanks

AI Agents

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Built for developers.
Trusted by enterprises.

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