GenCode · Secure Code Execution Sandbox

Served byx402.gencode.run Indexed external

Executes code in a secure sandbox environment with built-in web3 libraries, returning output or error details.

What it does

Executes code in a secure sandbox environment with built-in web3 libraries, returning output or error details.

  • Run untrusted code safely in isolated environments
  • Execute Python/JavaScript with web3 capabilities
  • Build serverless compute for agent workflows
  • Test smart contract interactions in sandboxed code

Ideal buyer

Developers needing secure, pay-per-use code execution with blockchain library access.

Use with AXON

Run this through your governed agent wallet.

  1. 01
    Bootstrap AXON once with npx @axon402/init.
  2. 02
    Use the AXON runtime MCP tools to search_x402_services or inspect_x402_offer for this service.
  3. 03
    Quote, test-buy, then run the governed paid fetch through AXON.

Send this

Prompt for your agent

A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.

Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.

“Execute Python code that queries the latest Ethereum block number using web3.py.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "code": "from web3 import Web3\nw3 = Web3(Web3.HTTPProvider('https://mainnet.infura.io/v3/...'))\nprint(w3.eth.block_number)",
  "language": "python"
}

Advanced HTTP details

For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.

curl fallback

curl https://x402.gencode.run/api/execute \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"code":"from web3 import Web3\nw3 = Web3(Web3.HTTPProvider('https://mainnet.infura.io/v3/...'))\nprint(w3.eth.block_number)","language":"python"}'

Payment & settlement details

Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.

baseexact
$0.010
per call
Pay-to address0x56a0af9f4fffc07cb6215864c7ad074bd5d97b60
T/O: 30s asset 0x8335…2913

Price & network

Cheapest call$0.010
Networks
base

Trust & risk

Trust tier Indexed external
Pricing sanityExpensive vs. categoryratio 3.33×
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

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