GENCODE · Pay per run with x402 on Base

Generate And Run Agent Code

Pay for code generation and secure sandbox execution only when work happens. Generate and run Python, JavaScript, TypeScript, and Solidity with built-in web3 tooling on Base.

Loading price... Generate + execute Base + smart wallets Python · JS · TS · Solidity

x402 · pay per run

>>> agent.wallet.sign("x402")
runtime ready (python)
execute ▸ swap 50 USDC to 0.0132 ETH
result ▸ {"txHash":"0xB7f5...a30d6b"}
✓ completed in 1.8s

Paid Agent Actions

Monetize generation and execution

Charge USDC for both code generation and sandbox execution with x402. Supports EOAs and ERC-1271 smart wallet signatures.

Agent-Ready

Codegen plus runtime in one surface

Generate playground-ready code, edit it, and execute it in the same flow with Ethereum, Base, and Solana tooling already installed.

Secure Runtime

Isolated cloud execution

Every run executes in an isolated environment with managed limits, timeouts, and sandbox controls.

Live Playground

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Console

Awaiting execution...

API

Paid Endpoints

POST /api/generate (x402 · generate code for a playground tab)
POST /api/execute (x402 · run code in the sandbox)
GET /api/specs
GET /api/specs/:language

Shared Language Surface

Python
JavaScript
TypeScript
Solidity
R
Java
Bash

Libraries

Built-In Libraries

Python · Crypto

web3
eth-account
solana
base58
mnemonic

Python · Data

numpy
pandas
matplotlib

Python · ML

scikit-learn

Python · Utilities

requests
httpx
pyyaml

JavaScript · Crypto

ethers@6
viem
solc
@solana/kit
@scure/bip39

JavaScript · Data

d3-array
danfojs-node
mathjs

JavaScript · ML

ml-matrix
ml-regression

Quickstart

cURL

# 1) request code generation
curl -si -X POST https://x402.gencode.run/api/generate \
  -H "Content-Type: application/json" \
  -d '{"prompt":"hello world","language":"python"}'

# 2) sign PAYMENT-REQUIRED to produce PAYMENT-SIGNATURE

# 3) replay with PAYMENT-SIGNATURE
curl -X POST https://x402.gencode.run/api/generate \
  -H "Content-Type: application/json" \
  -H "PAYMENT-SIGNATURE: <base64>" \
  -d '{"prompt":"hello world","language":"python"}'

# same x402 flow for sandbox execution
curl -X POST https://x402.gencode.run/api/execute \
  -H "Content-Type: application/json" \
  -H "PAYMENT-SIGNATURE: <base64>" \
  -d '{"code":"print(1+1)","language":"python"}'

# supports EOAs and ERC-1271 smart wallets on Base

Generate Request

prompt string (required)
language string (required)
provider string (optional; e.g. gemini)

Execute Request

code string (required)
language string (optional; defaults to python)

Generate Response

{
  "success": true,
  "output": {
    "code": "print('hello world')"
  }
}

Execute Response

{
  "success": true,
  "output": {
    "text": "2"
  }
}

Limits

timeout 30s
max code 10k
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