MCP server

Sandbox-truth probe for agent frameworks

com.textforagents/sandbox-truth-probe

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Measured sandbox verdicts: 7-axis probe, signed pinned receipt. Cached $0.25, fresh $2.50.

At a glance

Type

MCP server

Publisher

textforagents.com (verified by the MCP Registry)

Status

Working at last check

Tools

5

Token cost

About 282 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http sandbox-truth-probe https://textforagents.com/products/sandbox-truth-probe/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.sandbox-truth-probe]
url = "https://textforagents.com/products/sandbox-truth-probe/mcp"

Gemini CLI

{"mcpServers":{"sandbox-truth-probe":{"httpUrl":"https://textforagents.com/products/sandbox-truth-probe/mcp"}}}

Cursor

{"mcpServers":{"sandbox-truth-probe":{"url":"https://textforagents.com/products/sandbox-truth-probe/mcp"}}}

VS Code

{"servers":{"sandbox-truth-probe":{"type":"http","url":"https://textforagents.com/products/sandbox-truth-probe/mcp"}}}

Antigravity

agy mcp add sandbox-truth-probe https://textforagents.com/products/sandbox-truth-probe/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"sandbox-truth-probe","server_url":"https://textforagents.com/products/sandbox-truth-probe/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"sandbox-truth-probe","server_url":"https://textforagents.com/products/sandbox-truth-probe/mcp"}

Tools

• sandbox_cached_verdict ~70 tokens
  Look up whether a cached verdict exists (delivery is paid over x402 on the HTTP surface).
• sandbox_frameworks ~43 tokens
  List probeable fixtures and the real-population status.
• sandbox_gate ~70 tokens
  Dispatch-gate evaluation: pin, DEAD-FLAG and stale-hash refusal.
• sandbox_verify_receipt ~56 tokens
  Verify a receipt against the pinned signer key.
• sandbox_watch_status ~43 tokens
  Your watch subscriptions and current cached verdicts.

Browse

• Running code

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