x402 Singularity Compute

Provision and manage GPU/VPS instances paid with USDC via the x402 payment protocol.

Base URL: https://compute.x402layer.cc Networks: Base (EVM) • Solana Currency: USDC Protocol: HTTP 402 Payment Required

Access Note: Preferred access is SSH public key. If no SSH key is provided, a one-time password fallback can be fetched once via API.

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Quick Start

1. Install Dependencies

pip install -r {baseDir}/requirements.txt

2. Set Up Wallet

Option A: Base (EVM) Private Key

export PRIVATE_KEY="0x..."
export WALLET_ADDRESS="0x..."

Option B: Solana Private Key

export SOLANA_SECRET_KEY="base58-or-json-array"
export SOLANA_WALLET_ADDRESS="YourSolanaAddress"
export COMPUTE_AUTH_CHAIN="solana"

Create COMPUTE_API_KEY (optional) for management endpoints:

python {baseDir}/scripts/create_api_key.py --label "my-agent"

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⚠️ Security Notice

IMPORTANT: This skill handles private keys for signing blockchain transactions.

• Never use your primary custody wallet - Create a dedicated wallet with limited funds
• Private keys are used locally only - They sign transactions locally and are never transmitted
• For testing: Use a throwaway wallet with minimal USDC

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Scripts Overview

Script	Purpose
browse_plans.py	List available GPU/VPS plans with pricing
browse_regions.py	List deployment regions
provision.py	Provision a new instance (x402 payment, --months or --days)
create_api_key.py	Create an API key for agent access (optional)
list_instances.py	List your active instances
instance_details.py	Get details for a specific instance
get_one_time_password.py	Retrieve one-time root password fallback
extend_instance.py	Extend instance lifetime (x402 payment)
destroy_instance.py	Destroy an instance
solana_signing.py	Internal helper for Solana x402 payment signing

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Instance Lifecycle

Browse Plans → Provision (pay USDC) → Active → Extend / Destroy → Expired

Instances expire after their prepaid duration. Extend before expiry to keep them running.

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Workflows

A. Browse and Provision

# List GPU plans
python {baseDir}/scripts/browse_plans.py

# Filter by type (gpu/vps/high-performance)
python {baseDir}/scripts/browse_plans.py --type vcg

# Check available regions
python {baseDir}/scripts/browse_regions.py

# Generate a dedicated SSH key once (recommended for agents)
ssh-keygen -t ed25519 -N "" -f ~/.ssh/x402_compute

# Provision an instance for 1 month (triggers x402 payment)
python {baseDir}/scripts/provision.py vcg-a100-1c-2g-6gb lax --months 1 --label "my-gpu" --ssh-key-file ~/.ssh/x402_compute.pub

# Provision a daily instance (cheaper, use-and-throw)
python {baseDir}/scripts/provision.py vc2-1c-1gb ewr --days 1 --label "test-daily" --ssh-key-file ~/.ssh/x402_compute.pub

# Provision for 3 days
python {baseDir}/scripts/provision.py vc2-1c-1gb ewr --days 3 --label "short-task" --ssh-key-file ~/.ssh/x402_compute.pub

# Provision on Solana
python {baseDir}/scripts/provision.py vc2-1c-1gb ewr --months 1 --label "my-sol-vps" --network solana --ssh-key-file ~/.ssh/x402_compute.pub

# ⚠️ After provisioning, wait 2-3 minutes for Vultr to complete setup
# Then fetch your instance details (IP, status):
python {baseDir}/scripts/instance_details.py <instance_id>

B. Manage Instances

# Optional: create a reusable API key (avoids message signing each request)
python {baseDir}/scripts/create_api_key.py --label "my-agent"

# List all your instances
python {baseDir}/scripts/list_instances.py

# Get details for one instance
python {baseDir}/scripts/instance_details.py <instance_id>

# Optional fallback if no SSH key was provided during provisioning
python {baseDir}/scripts/get_one_time_password.py <instance_id>

# Extend by 1 day
python {baseDir}/scripts/extend_instance.py <instance_id> --hours 24

# Extend by 1 month
python {baseDir}/scripts/extend_instance.py <instance_id> --hours 720

# Extend on Solana
python {baseDir}/scripts/extend_instance.py <instance_id> --hours 720 --network solana

# Destroy
python {baseDir}/scripts/destroy_instance.py <instance_id>

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x402 Payment Flow

1. Request provision/extend → server returns HTTP 402 with payment requirements
2. Script signs payment locally:
3. Base: USDC TransferWithAuthorization (EIP-712)
4. Solana: signed SPL transfer transaction payload
5. Script resends request with X-Payment header containing signed payload
6. Server verifies payment, settles on-chain, provisions/extends instance

For Solana, transient facilitator failures can happen. Retry once or twice if you get a temporary 5xx verify error.

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Plan Types

Type	Plan Prefix	Description
GPU	vcg-*	GPU-accelerated (A100, H100, etc.)
VPS	vc2-*	Standard cloud compute
High-Perf	vhp-*	High-performance dedicated
Dedicated	vdc-*	Dedicated bare-metal

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Environment Reference

Variable	Required For	Description
PRIVATE_KEY	Base payments	EVM private key (0x...)
WALLET_ADDRESS	Base mode	Base wallet address (0x...)
SOLANA_SECRET_KEY	Solana mode	Solana signer key (base58 or JSON byte array)
SOLANA_WALLET_ADDRESS	Solana mode	Solana wallet address (optional if derivable from secret)
COMPUTE_AUTH_CHAIN	Solana/base auth override	base or solana
COMPUTE_API_KEY	Optional	Reusable API key for compute management endpoints

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API Reference

For full endpoint details, see references/api-reference.md.

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Resources

• 📖 Documentation: studio.x402layer.cc/docs/agentic-access/x402-compute
• 🖥️ Compute Dashboard: compute.x402layer.cc
• 🌐 x402 Studio: studio.x402layer.cc