Tempo is a payments-focused, EVM-compatible Layer 1 incubated by Stripe and Paradigm. It's purpose-built for stablecoin payments: fees can be paid in stablecoins rather than a separate volatile gas token, with throughput dedicated to payment traffic.

Which Tempo data does the Zerion API return?

Token balances and decoded transaction history for any Tempo address — enriched with prices, labels, and metadata in the same schema as every other supported chain. That covers the payment use cases Tempo is built for: balances, transfers, and settlement history.

How do I scope a request to Tempo?

Add filter[chain_ids]=tempo to any endpoint — the same REST surface, key, and response shape you use everywhere else. Omit the filter to get one merged feed across all supported chains.

Can AI agents pay for Zerion API calls on Tempo?

Yes. The Zerion CLI supports pay-per-call via the MPP protocol on Tempo — $0.01 USDC per request, no API key needed. Agents pay for exactly the data they use, straight from a wallet.

Why build stablecoin products on Tempo with Zerion?

One integration gives you enriched balances and decoded transfer history on Tempo plus every other chain your users touch — so a payments product can show a complete money view without running indexers per network.

How do I authenticate?

Every request uses HTTP Basic auth with your API key. Create one for free in the dashboard and pass it in the authorization header.

Is there a free tier?

Yes. Create a free API key to start building, then upgrade to Builder or Startup plans as your usage grows.

Tempo API

Stablecoin balances and decoded payment history on Tempo — enriched, production-ready, and served through the same API as 40+ other chains.

Get started Contact sales

Tempo Network Snapshot

Payments-first, EVM-compatible Layer 1 incubated by Stripe and Paradigm, purpose-built for stablecoins: transaction fees are paid in stablecoins rather than a volatile gas token, and throughput is dedicated to payment traffic. Tempo also settles MPP pay-per-call payments for the Zerion CLI, letting AI agents pay $0.01 USDC per API request with no key.

Mainnet

Network status

<1s

Block time

—

Total value locked

<$0.01

Avg gas fee

Key features

Purpose-built for stablecoin payments

Gas payable in stablecoins

EVM-compatible execution

Incubated by Stripe and Paradigm

Dedicated payment-lane throughput

Settles MPP pay-per-call for AI agents

Tempo API endpoints

Portfolio Data

Track Tempo tokens, NFTs, and balances across Tempo & 50+ chains with a single call.

Explore the Portfolio Data API

Performancezerion.eth

$73,377.68

-1.45%· 1W

AssetsTokens

sPENDLE

StakedPendle

$24.3K

+0.72%

yb-WBTC

Yield Basis liquidity for WBTC

$11.9K

0.00%

yb-cbBTC

Yield Basis liquidity for cbBTC

$9.8K

+0.70%

ARB

Arbitrum

$4.3K

-4.25%

UNI

Uniswap

$3.8K

-2.67%

NFTsFloor

CryptoPunks V1

$4.4K

Pi Badge

$1.4K

ShizoPunks

$1.2K

The Llamas

$686.9

One API, every major chain

Tempo, Ethereum, Base, Solana, Arbitrum and 45+ more networks — queried in a single call.

Ethereum

Base

Solana

Arbitrum

Optimism

Ethereum

Base

Solana

Arbitrum

Optimism

Ethereum

Base

Solana

Arbitrum

Optimism

Ethereum

Base

Solana

Arbitrum

Optimism

Ethereum

Base

Solana

Arbitrum

Optimism

Ethereum

Base

Solana

Arbitrum

Optimism

Polygon

Avalanche

BNB Chain

Robinhood

Linea

Scroll

Polygon

Avalanche

BNB Chain

Robinhood

Linea

Scroll

Polygon

Avalanche

BNB Chain

Robinhood

Linea

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Polygon

Avalanche

BNB Chain

Robinhood

Linea

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Polygon

Avalanche

BNB Chain

Robinhood

Linea

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Polygon

Avalanche

BNB Chain

Robinhood

Linea

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Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Zora

Celo

Gnosis

Fantom

Aurora

HyperEVM

Explore all chains →

Why Choose Our
Tempo API?

Ship faster

Go live in minutes, not months

Grab a free key, paste one request, and you're serving portfolio data. No nodes, no indexers, no infra to maintain.

< 5 min to first callGet a free API key

Speed

Fast everywhere your users are

A globally cached edge keeps every query fast, so your app feels instant no matter where your users open it.

~50ms median response

Freshness

Balances update in seconds

Balances, positions, and transactions land within seconds of confirmation. Never stale, never guessing.

Fresh within 1 block

Scale

Scale from one user to millions

One request spans Solana, Ethereum, Base and 50+ chains. The same endpoint carries your first user and your millionth.

50+ chains · billions of calls

Built for Consumer Scale and Enterprise Reliability

The same infrastructure that runs the Zerion wallet — sized for everything from a first prototype to fintech products in production.

1000+

RPS

SLA

Guaranteed

99.9%

Uptime

Stay ahead with the Zerion API

New endpoints, chains, and webhooks — straight to your inbox.

Simple, transparent tiers

Start building for free. Upgrade as you scale.

DeFi Positions, Wallet Portfolio Chart, and Wallet P&L endpoints are limited to 25% of every plan quota and aren’t covered by overages.

Developer

$0forever

For early prototypes and proofs of concept

Get started free

2K requests / day
3 RPS limit
Chat widget
Best effort support

Builder

$149/ month

For shipping MVP without running any Infrastructure

Start building

Up to 250K requests / month
10 RPS
Telegram group
Priority support

Custom pricing & features

For scale-ups & enterprises with high volume or custom needs

Contact sales

2.5M+ requests / month

1,000+ RPS

Slack or Telegram channel

24/7 support

99.9% uptime SLA

Dedicated account manager

What can you build?

Wallets & Stablecoins

Power portfolio views, transaction history, and in-app swaps with one API — across every chain and stablecoin your users hold.

Fintech & Neobanks

Add portfolio charts, PnL, and transaction history to your app — no blockchain node to stand up, no infra to maintain.

AI Agents

Wallet holdings, DeFi positions, and PnL in a single call. Pay per request with x402 on Base — no subscriptions, no keys.

Trusted by the companies you know

From multichain wallets to onchain apps — teams build on Zerion API.

“Zerion API powers Kraken 2.0 with reliable token balances, P&L, and transaction history through one consolidated integration, making it easier to scale to more users.”

Washington SanchezKraken

Read case study

“We've worked with Zerion API since day zero, even before launching Uniswap Wallet. From multichain positions to EIP-7702 batching, they've been key partners.”

Noah CitronEngineering Lead, Uniswap Wallet

Read case study