API Tools

writ.money

An MCP payment server that lets agents check spending policies and budgets, make payments, fetch auditable receipts, and provision sandbox access.

1 endpoint6 known toolsFirst detected September 20, 2026Last detected September 20, 2026

ENDPOINT 1

https://writ.money/mcp

No auth detected

MCP server metadata

Name: writ
Version: 1.0.0

Capabilities

tools

Server instructions

Writ gives this agent a budget it cannot exceed. Test money only: nothing here is real. Start with fastpay_sandbox_join. It provisions a sandbox agent for this session and keeps its credential, so every other tool authenticates automatically. Then fastpay_pay (a blocked payment moves no money and says why), fastpay_get_receipt, and fastpay_verify, which replays the ledger so you can check the balances yourself.

Known tools 6

fastpay_list_policies

Show the calling agent's spending policy: remaining budget, per-payment cap, daily cap, and which categories it is allowed to pay for.

Potential side effects

fastpay_check_budget

Return the agent’s remaining spendable budget (budget minus what it has already spent) and whether it is active/frozen.

Inferred read-only

fastpay_pay

Attempt a payment on behalf of the agent.

Potential side effects

fastpay_get_receipt

Fetch the signed, auditable receipt for a completed payment by its authorization id.

Potential side effects

fastpay_sandbox_join

Provision yourself a FREE sandbox — no credential, no human, no signup.

Inferred read-only

fastpay_verify

Replay the append-only ledger and compare it to live state — the audit any tenant (or skeptic) can run.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.writ]
url = "https://writ.money/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "writ": {
      "type": "http",
      "url": "https://writ.money/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: writ
Remote MCP URL: https://writ.money/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "writ": {
      "url": "https://writ.money/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "writ": {
      "type": "http",
      "url": "https://writ.money/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "writ",
  "transport": "streamable-http",
  "url": "https://writ.money/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.