Recurring Revenue.
Self-Enforcing.

The billing infrastructure for Solana. Subscriptions, usage metering, and agent budgets, all enforced at the protocol level. Not the application level. Live on devnet. Build with the SDK today.

Start Building Dashboard Coming Soon

import { createVelaClient } from "@vela/sdk";

const vela = createVelaClient({ connection, wallet });

const { data: plan } = await vela.createPlan({
  amount: 50_000_000n,        // 50 USDC
  frequency: 30n * 86_400n,   // Every 30 days
  maxPulls: 12n,
});

await vela.createSubscription({
  planAddress: plan.address,
  merchantAddress: wallet.publicKey,
});

import { createVelaClient } from "@vela/sdk";

const vela = createVelaClient({ connection, wallet });

await vela.createAgentMandate({
  agent: agentWallet.publicKey,
  splUsdcMint: USDC_MINT,
  dailyLimit: 10_000_000n,     // 10 USDC/day
  lifetimeCap: 300_000_000n,   // 300 USDC total
  minPullAmount: 100_000n,
  minPullInterval: 60n,
  services: [{ name: "gpt-4o", dailyLimit: 5_000_000n }],
  fundedAmount: 50_000_000n,
});

import { createVelaClient } from "@vela/sdk";
import { BN } from "@coral-xyz/anchor";

const vela = createVelaClient({ connection, wallet });

await vela.createUsagePlan({
  planId: new BN(1),
  unitName: new TextEncoder().encode("api-calls".padEnd(32, "\0")),
  tiers: [
    { upTo: new BN(1000), ratePerUnit: new BN(1000), padding: new BN(0) },
    { upTo: new BN(10000), ratePerUnit: new BN(500), padding: new BN(0) },
  ],
  maxChargePerPeriod: new BN(50_000_000),
  settlementFrequency: new BN(30 * 86_400),
});

Phantom

Backpack

Helius

Squads Protocol

Arcium MPC

Token-2022

x402

TukTuk

Phantom

Backpack

Helius

Squads Protocol

Arcium MPC

Token-2022

x402

TukTuk

One Protocol. Three Interfaces.

Ship billing your way.

SDK and CLI for full control today. No-code dashboard for merchants coming soon. Agent mandates if the spender isn't human.

Merchants

Zero code. Full control.

Plan creation and management
Payment links with QR codes
Invoicing and revenue analytics
Subscriber self-service portal

View Merchant Docs

Developers

TypeScript SDK. 30+ methods.

Instruction builders and validators
Webhooks for real-time events
Checkout and portal sessions
x402 HTTP payment standard

Read the Docs

AI Agents

Spend authority with hard limits.

Daily and lifetime spending caps
Per-service budget isolation
On-chain budget verification
Pause, resume, and revoke

Agent Guide

Beyond payments.
Infrastructure.

Subscriptions, usage tiers, and agent budgets. All running on Token-2022 transfer hooks. The protocol validates. The network enforces. You ship.

Protocol-Enforced Mandates

The smart contract is the arbiter. Exact amount, exact frequency, exact duration, all cryptographically scoped. Overcharge the mandate? The transfer hook rejects the transaction before it touches the ledger.

Mandate Config

Max Monthly Limit 50.00 USDC

Frequency Enforced Every 30 dys

Agent Mandates

Give AI agents a wallet with walls. Daily caps, lifetime budgets, per-service isolation. The agent spends. The protocol enforces the ceiling.

Usage-Based Billing

Up to five pricing tiers with per-period charge caps. Metering runs through Arcium, so usage data stays encrypted end-to-end. Competitors see transfers, never volume.

Merchant Dashboard

Create plans, generate payment links, send invoices, track churn. A complete billing operations layer for merchants. Coming soon.

Payment Links

A link and a QR code. Share it anywhere. Hosted checkout handles the wallet connection, wrapping, and mandate creation. Track conversion from click to active subscriber.

Subscriber Portal

Your subscribers manage themselves. View active plans, download invoices, switch tiers, or cancel. No tickets required.

Soulbound Credentials

Subscribers receive a non-transferable Token-2022 NFT. Gate your apps natively on-chain without an API call. It's just a balance check.

Encrypted Billing Logic

Powered by Arcium MPC. Four circuits process billing on encrypted inputs. Validators confirm the transfer. They never see the amount, the rate, or the business logic behind it.

Architecture

How VelaPay Operates

01

Scope & Sign

One transaction. The subscriber approves a mandate that locks in the terms: price, frequency, duration, and caps. Flat-rate subscription, usage plan, or agent budget. The PDA holds the rules. Nothing else needs to.

02

Validate & Transfer

Every pull routes through the Token-2022 Transfer Hook. Time window, authorization, amount ceiling, and budget caps must all pass. One fails, the entire transaction reverts. No partial state. No dispute.

03

Automate & Observe

The relayer processes maturing mandates without permission or intervention. Invoices generate on execution. Subscribers self-manage through the portal. Merchants watch revenue, cohorts, and churn from the dashboard in real time.

ERC-20 Style

Approve Infinite

REJECTED

Mandate PDA

amount: 50,000,000

interval: every 30 days

asset: USDC

Subscriber Signature Verified

Transfer TransferHook::Execute

Time Valid

Auth Valid

Amt Valid

Transaction Approved

CRANK

Radical Protocol Economics

Legacy billing taxes gross revenue. Per-call agent platforms take a cut of every inference. VelaPay runs on base Solana compute. Flat cost regardless of billing model, volume, or mandate type.

~$3,200

Legacy Web2

~$140

Other Chains

$12

VelaPay

* Based on $100,000 in billing volume via 1,000 transactions/month across subscriptions, usage, and agent mandates.

2.9% + 30¢ Base Solana Compute

Recurring Revenue. Self-Enforcing.