Code Sandbox API
Execute Python, JavaScript, SQL code in a sandbox. x402 micropayment.
Installation
Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).
claude mcp add --transport sse code-sandbox-api 'https://code-sandbox.api.klymax402.com/mcp'
{
"mcpServers": {
"code-sandbox-api": {
"type": "sse",
"url": "https://code-sandbox.api.klymax402.com/mcp"
}
}
}
Documentation
Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.
Sommaire
Code Sandbox API
Execute Python, JavaScript, or SQL in a sandbox. Get stdout, execution time, errors. 10s timeout. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"code-sandbox": {
"url": "https://code-sandbox.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
curl -X POST "https://code-sandbox.api.klymax402.com/api/execute" \
-H "Content-Type: application/json" \
-d '{"code":"...","language":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
code_execute_sandbox | POST | /api/execute | $0.02 | Execute code in a sandboxed environment |
code_execute_sandbox
Use this when you need to execute Python, JavaScript, or SQL code in a sandboxed environment and get the output. Supports Python (subprocess), JavaScript (eval), and SQL (in-memory SQLite).
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
code | string | yes | The code to execute |
language | string | yes | Programming language: python, javascript, or sql |
timeout | number | no | Execution timeout in milliseconds (default: 5000, max: 10000) |
Returns
output-- stdout captured from code execution (max 10KB)language-- the language that was executedexecutionTimeMs-- execution duration in millisecondsexitCode-- process exit code (0 = success)error-- error message if execution failed (null on success)
Example response:
{"output":"Hello World\n42\n","language":"python","executionTimeMs":234,"exitCode":0,"error":null}
When to use: running calculations, data transformations, validating code snippets, or querying in-memory databases. Essential when you need computed results rather than static data.
Example agent prompts
- "Execute Python, JavaScript, or SQL code in a sandboxed environment and get the output"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
Questions fréquentes
Qu'est-ce que Code Sandbox API ?
Execute Python, JavaScript, SQL code in a sandbox. x402 micropayment.
Comment installer Code Sandbox API ?
Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport sse code-sandbox-api 'https://code-sandbox.api.klymax402.com/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.
Faut-il une clé API pour Code Sandbox API ?
Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.
Code Sandbox API est-il open source ?
Oui. Son code est sur GitHub sous licence MIT.
Qui maintient Code Sandbox API ?
Il est publié par Br0ski777. AI.tn le référence sans le maintenir ni le recommander.
Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.