Built on AT Protocol & Tempo Blockchain

Global social payments.

The payments layer for the open social web. The Atmosphere isn't one app, it's an everything ecosystem. Atmosphere Money is its financial infrastructure: instant settlement, native stablecoins, and seamless payments across every app, agent, and identity in the Atmosphere.

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USDAT & EURAT stablecoins  ·  Built on Tempo  ·  Powering Atpay

AT Protocol
Social identity protocol layer
~$0.001
Target cost per transaction
< 0.5s
Finality on Tempo
USDAT · EURAT
USD & EUR stablecoins
The Protocol

Money, native to the Atmosphere.

AT Protocol gave the world a decentralized social graph. Atmosphere Money adds the financial layer, a programmable stablecoin and settlement network designed from the ground up for apps built on atproto.

  • Permissionless: any app on the Atmosphere can integrate payments without approval or gatekeepers.
  • Composable: payments are first-class primitives that compose with atproto identity, data, and social graphs.
  • Interoperable: settle in any stablecoin via Tempo's native DEX; all roads lead to the same liquidity pool.
  • Developer-first: a single SDK handles wallets, transactions, fee sponsorship, and reconciliation.
  • User-ownership: wallets are self-custodial by design. Users can export their private key at any time and move funds to any compatible wallet, preventing lock-in and staying true to the open, self-sovereign ethos of AT Protocol. Learn more →
Core Infrastructure
Tempo Settlement Layer
Atmosphere Money is natively settled on Tempo, a purpose-built payments blockchain with sub-second finality, stablecoin gas, and dedicated payment lanes that never compete with other traffic.
AT Protocol Identity
Payments are tied to atproto DIDs. Your handle is your payment address. Apps can request, split, and settle payments using the same identity graph your users already have.
Stablecoin-Native
No volatile gas tokens. Transactions are denominated and settled in USD stablecoins. Atmosphere Money's native stablecoins (USDAT and EURAT) are fully collateralized and redeemable 1:1.
Single SDK Integration
One SDK. Wallet creation, transaction signing, gas sponsorship, payment requests, and reconciliation, all exposed through a clean async API designed for atproto developers.
Programmable Payments
Schedule, split, and automate payments with smart accounts. Subscriptions, microtransactions, creator splits, and agentic commerce, all composable at the protocol level.
Full Auditability
Every transaction carries structured metadata, invoice IDs, cost centers, memo fields, making reconciliation against existing accounting systems straightforward and auditable.
Stablecoins

Two coins.
The whole Atmosphere.

Atmosphere Money issues two native stablecoins, USDAT pegged to the US Dollar and EURAT pegged to the Euro. Fully collateralized, instantly redeemable, and purpose-built for the high-frequency, low-value transactions that define social applications.

  • Full fiat collateralization: USD and EUR reserves held with regulated custodians, audited regularly.
  • Instant mint & redeem: on-ramp and off-ramp directly through the Atmosphere Money API in either currency.
  • Cross-stablecoin swaps: apps can accept USDC, USDT, EURC, or any major stablecoin; USDAT and EURAT handle routing.
  • Compliance-ready: KYC/AML hooks built into the protocol for apps operating in regulated environments globally.
$

USDAT

Atmosphere Dollar · Pegged 1:1 to USD · Tempo native

Coming soon
Peg
1 : 1 USD
Settlement
Tempo
Gas cost
~$0.001
€

EURAT

Atmosphere Euro · Pegged 1:1 to EUR · Tempo native

Coming soon
Peg
1 : 1 EUR
Settlement
Tempo
Gas cost
~€0.001
Both stablecoins launch on Tempo mainnet. Testnet integration available now, reach out to start building before launch.
For Developers

Payments in your atproto app, in minutes.

Atmosphere Money is designed for developers building on the AT Protocol. Whether you're building a social app, a creator platform, or a marketplace, drop in the SDK and you have payments.

  • atproto-native: integrates directly with your existing DID resolution and lexicon schema.
  • Gas sponsorship: sponsor transactions for your users so they never see a blockchain fee.
  • Automatic revenue splits: define split rules once — the protocol distributes funds to creators, moderators, hosts, and curators at settlement with no reconciliation overhead.
  • Webhooks & events: real-time payment events over your existing atproto firehose subscription.
  • Testnet available: start building today on Tempo testnet with no mainnet commitment.
Read the docs View on GitHub
atmosphere-money.ts 
// Automatic revenue split on a subscription payment
import { AtmosphereMoney } from '@atmosphere/money'

const client = new AtmosphereMoney({
  network: 'mainnet',
  sponsorGas: true,
})

// $5 subscription split across all contributors
await client.createSplit({
  from: 'did:plc:subscriber',
  amount: 5.00,
  currency: 'USDAT',
  recipients: [
    { did: 'did:plc:creator',   share: 0.70 },
    { did: 'did:plc:moderator', share: 0.15 },
    { did: 'did:plc:curator',   share: 0.10 },
    { did: 'did:plc:pds-host',  share: 0.05 },
  ],
})
// All recipients paid atomically in ~0.5s
The Living Ecosystem

Every stakeholder, financially rewarded.

The Atmosphere is built by many hands. Fast, cheap, programmable payments let every participant — not just app owners — earn from the value they create. Revenue splits happen at settlement, automatically, with no off-chain reconciliation.

Creators
Tipping & Subscriptions
Followers tip posts and threads or subscribe to feeds directly — settled in USDAT or EURAT, with no platform intermediary taking a cut.
Moderators
Labeller Services
Labellers and moderation services can charge for their work at the protocol level — apps pay per-label or via subscription, automatically.
Infrastructure
PDS & AppView Hosts
PDS operators and AppView providers can receive micropayments for hosting and compute, incentivising a decentralised, robust infrastructure layer.
Curators
Feed & List Builders
Custom feed and list curators earn a share when users subscribe to their feeds — aligning incentives with quality, not virality.
Commerce
P2P Marketplaces
Escrow, dispute resolution, and instant payouts for decentralised marketplace apps — splits distributed on settlement.
Agents
Agentic Commerce
AI agents transacting autonomously — paying for API calls, hiring other agents, and distributing value across the graph with predictable fees.
Agentic Payments

Money for machines.
Native to the Atmosphere.

AI agents on AT Protocol can now transact autonomously, paying for API calls, tipping content they consume, hiring other agents, and settling commerce flows with sub-second finality and predictable fees. MPP (Machine Payments Protocol) support is now live with the Tempo mainnet launch.

  • DID-native agent wallets: every agent gets an atproto identity and a programmable wallet, no separate key management required.
  • Deterministic settlement: agents get guaranteed confirmation in ~0.5s, eliminating retry loops and race conditions in autonomous flows.
  • Predictable fees: fixed ~$0.001 cost per transaction means usage-based billing and microtransaction models are commercially viable at any scale.
  • MPP (Machine Payments Protocol) support: standardized machine-to-machine payment requests and autonomous settlement for agentic commerce.
  • Spending limits & policies: set per-agent budgets, velocity limits, and whitelisted counterparties so agents operate within defined financial guardrails.
  • Composable with social graph: agents can transact with any DID on AT Protocol, human or machine, within the same unified identity and payments layer.
agent-payments.ts 
// Provision an agent wallet tied to its DID
const agent = await client.createAgentWallet({
  did: 'did:plc:agent-xyz',
  spendingLimit: { daily: 50.00, perTx: 5.00 },
  currency: 'USDAT',
})

// Agent pays for an API call autonomously
await agent.pay({
  to: 'did:plc:api-provider',
  amount: 0.001,
  memo: 'inference · run/abc123',
}) // settles in ~0.5s, fee ~$0.001

// Agent-to-agent: hire a sub-agent
await agent.escrow({
  to:     'did:plc:sub-agent',
  amount: 2.50,
  release: 'on:task-complete',
})
Latency
< 0.5s
Deterministic finality
Fee per tx
~$0.001
Fixed, stablecoin-denominated
In development

Introducing Atpay

The consumer wallet for the Atmosphere. Atpay is the native payment app for AT Protocol, letting anyone send, receive, and spend USDAT or EURAT across every app on the open social web. Built on top of Atmosphere Money's infrastructure.

Join the waitlist Partner with Atpay
Atpay
Consumer app · Coming soon
Get in touch

Let's build the open payments web together.

Atmosphere Money is early and moving fast. We're working with app developers, infrastructure partners, and people who want to help shape what payments look like on the open social web.

  • ✓ Payments infrastructure purpose-built for AT Protocol apps
  • ✓ USDAT & EURAT, native stablecoins (USD and EUR) with programmatic mint/redeem and compliance hooks
  • ✓ Settled on Tempo, a Stripe & Paradigm-incubated payments blockchain
  • ✓ Atpay consumer wallet in development, bringing payments to every atproto user
  • ✓ SDK for developers, agentic payment primitives, and cross-app composability
  • ✓ Designed to work across every app, agent, and identity on the Atmosphere

Say hello

Whether you're building on atproto, exploring a partnership, or just curious about what we're working on, we'd love to hear from you.

Coming soon