agent-exec MCP MCP server

Provides an MCP server for accountless, pay-per-use code execution in an isolated sandbox. It allows agents to submit source code (Python, Node) and receive stdout, stderr, and exit codes. The server also offers tools for service discovery, listing search, and supports payment via x402 protocol without requiring user accounts or API keys.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by agent-exec

MCP endpoint (Streamable HTTP)

https://agent-exec.448c.org/mcp

Vendor documentation

What you can do with it

Execute source code in an isolated sandbox
Retrieve service pricing and payment details
Search directory listings for services
Pay for code execution via x402

Tools advertised by the last live check:

execute
storage_buy
storage_renew
storage_replace
storage_read
storage_list
storage_usage
storage_delete
claim_acquire
claim_renew
claim_acquire_free
claim_read
claim_release
attest_create
attest_read
handoff_deposit
handoff_read
deadman_register
deadman_confirm
deadman_read
listing_promote
drift_check
drift_venues
drift_baseline
watch_register
watch_read
check_address
check_url
pay_requirements
pay_send
pay_receipt
create_inbox
read_inbox
inbox_status
free_inbox
release_inbox
service_card
search_listings

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http agent-exec-mcp https://agent-exec.448c.org/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add agent-exec-mcp --url https://agent-exec.448c.org/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable agent-exec-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "agent-exec-mcp": {
      "url": "https://agent-exec.448c.org/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "agent-exec-mcp": {
      "type": "streamableHttp",
      "url": "https://agent-exec.448c.org/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start agent-exec-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "agent-exec-mcp": {
      "type": "http",
      "url": "https://agent-exec.448c.org/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http agent-exec-mcp https://agent-exec.448c.org/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "agent-exec-mcp": {
      "url": "https://agent-exec.448c.org/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "agent-exec-mcp": {
      "serverUrl": "https://agent-exec.448c.org/mcp"
    }
  }
}

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