| name | superpaymaster |
| version | 0.1.0 |
| description | Gasless transactions and micropayments for Web3 agents. ERC-4337 gas sponsorship, x402 payment facilitation, streaming micropayments via payment channels.
|
| author | SuperPaymaster Team |
| license | MIT |
| install | pnpm add @superpaymaster/sdk |
| repository | https://github.com/AAStarCommunity/SuperPaymaster |
| tags | ["web3","payments","gas-sponsorship","x402","erc-4337","micropayments","agent-economy"] |
| capabilities | ["gas-sponsorship","x402-settlement","micropayment-channels","agent-identity","community-tokens"] |
| networks | ["ethereum-sepolia","base","base-sepolia","optimism"] |
SuperPaymaster
Decentralized gas payment infrastructure for Web3 agents and dApps. Provides gas sponsorship via community tokens (xPNTs), x402 payment facilitation, and streaming micropayment channels.
Quick Start
pnpm add @superpaymaster/sdk
import { createSuperPaymasterClient } from "@superpaymaster/sdk";
const client = createSuperPaymasterClient({
network: "base-sepolia",
operatorUrl: "https://your-operator.example.com",
});
Capabilities
1. Gas Sponsorship (ERC-4337)
Sponsor gas fees for users via community tokens instead of ETH.
const eligible = await client.isEligibleForSponsorship(userAddress);
const paymasterData = await client.getPaymasterData(userOp, {
community: "your-community",
});
2. x402 Payment Settlement
HTTP 402-based payments for API access and agent services.
const result = await client.settleX402Payment({
from: payerAddress,
to: payeeAddress,
asset: "USDC",
amount: "1000000",
signature: payerSignature,
});
3. Micropayment Channels
Streaming payments with off-chain vouchers and on-chain settlement.
const channel = await client.openChannel({
recipient: serviceAddress,
token: "USDC",
totalDeposit: "10000000",
duration: 3600,
});
const voucher = await client.signVoucher(channel.id, "100000");
4. Agent Identity (ERC-8004)
Register and verify agent identity for reputation-based sponsorship.
const isAgent = await client.isRegisteredAgent(agentAddress);
const rate = await client.getAgentSponsorshipRate(agentAddress, operatorAddress);
Resources
Contract Addresses (Sepolia)
- SuperPaymaster:
0x829C3178DeF488C2dB65207B4225e18824696860
- MicroPaymentChannel:
0x5753e9675f68221cA901e495C1696e33F552ea36
- aPNTs Token:
0xEA4b9d046285DC21484174C36BbFb58015Ad5E1f
API Endpoints
GET /health — Operator statusPOST /verify — Verify payment signature (~100ms)POST /settle — Execute on-chain settlementGET /quote — Fee rate and supported assetsGET /.well-known/x-payment-info — x402 discovery
Documentation
