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x402-layer x402 Singularity Layer - Enable AI agents to deploy monetized API endpoints,
consume paid services via USDC payments, manage credits, and participate
in a self-sustaining agent economy. Supports Base and Solana networks.
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name x402-layer version 1.0.1 description x402 Singularity Layer - Enable AI agents to deploy monetized API endpoints,
consume paid services via USDC payments, manage credits, and participate
in a self-sustaining agent economy. Supports Base and Solana networks.
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x402 Singularity Layer
x402 is a Web3 payment layer enabling AI agents to:
💰 Pay for API access using USDC
🚀 Deploy monetized endpoints
🔍 Discover services via marketplace
📊 Manage endpoints and credits
Networks: Base (EVM) • SolanaCurrency: USDCProtocol: HTTP 402 Payment Required
Quick Start
1. Install Dependencies
pip install -r {baseDir}/requirements.txt
2. Set Up Wallet
export
"0x..."
export
"0x..."
export
"[1,2,3,...]"
Scripts Overview
🛒 CONSUMER MODE (Buying Services) Script Purpose pay_base.pyPay for endpoint on Base network pay_solana.pyPay for endpoint on Solana network consume_credits.pyUse pre-purchased credits (fast) consume_product.pyPurchase digital products (files) check_credits.pyCheck your credit balance recharge_credits.pyBuy credit packs for an endpoint discover_marketplace.pyBrowse available services
🏭 PROVIDER MODE (Selling Services) Script Purpose create_endpoint.pyDeploy new monetized endpoint ($5) manage_endpoint.pyView/update your endpoints topup_endpoint.pyAdd credits to YOUR endpoint list_on_marketplace.pyPublish endpoint publicly
Consumer Flows
A. Pay-Per-Request (Recommended)
python {baseDir}/scripts/pay_base.py https://api.x402layer.cc/e/weather-data
python {baseDir}/scripts/pay_solana.py https://api.x402layer.cc/e/weather-data
B. Credit-Based Access (Fastest) Pre-purchase credits for instant access without blockchain latency:
python {baseDir}/scripts/check_credits.py weather-data
python {baseDir}/scripts/recharge_credits.py weather-data pack_100
python {baseDir}/scripts/consume_credits.py https://api.x402layer.cc/e/weather-data
C. Discover Services
python {baseDir}/scripts/discover_marketplace.py
python {baseDir}/scripts/discover_marketplace.py search weather
Provider Flows
A. Create Endpoint ($5 one-time) Deploy your own monetized API:
python {baseDir}/scripts/create_endpoint.py my-api "My AI Service" https://api.example.com 0.01
Includes 20,000 test credits.
B. Manage Your Endpoint
python {baseDir}/scripts/manage_endpoint.py list
python {baseDir}/scripts/manage_endpoint.py stats my-api
python {baseDir}/scripts/manage_endpoint.py update my-api --price 0.02
C. Top Up YOUR Endpoint (Provider) Add credits to maintain your endpoint's balance:
python {baseDir}/scripts/topup_endpoint.py my-api 10
Note: This is different from recharge_credits.py which is for CONSUMERS.
D. List on Marketplace Make your endpoint publicly discoverable:
python {baseDir}/scripts/list_on_marketplace.py my-api --category ai --description "AI-powered analysis"
Payment Technical Details
Base (EVM) - EIP-712 Signatures Uses USDC TransferWithAuthorization (EIP-3009):
Gasless for payer
Facilitator settles on-chain
100% reliable
Solana - Versioned Transactions Uses VersionedTransaction with MessageV0:
Facilitator pays gas (from extra.feePayer)
SPL Token TransferChecked instruction
~75% success rate (retry logic included)
Environment Reference Variable Required For Description PRIVATE_KEYBase payments EVM private key (0x...) WALLET_ADDRESSAll operations Your wallet address SOLANA_SECRET_KEYSolana payments JSON array of bytes
API Base URL
Endpoints: https://api.x402layer.cc/e/{slug}Marketplace: https://api.x402layer.cc/api/marketplaceCredits: https://api.x402layer.cc/api/credits/*Agent API: https://api.x402layer.cc/agent/*
Resources
Known Issues ⚠️ Solana payments have ~75% success rate due to facilitator-side fee payer infrastructure issue. Retry logic is included in pay_solana.py. Base (EVM) payments are 100% reliable and recommended for production.
