MCP server

Agent Spend Guard — owner-set purchasing guardrails

com.a2awire/agent-spend-guard

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

Free spend guardrails for AI agents: approve/deny/ask_user, caps, dupes.

Working at last checkVerified publisher: a2awire.comAbout 2,476 tokens per request once connected4 tools

https://a2awire.com/mcp/connectors/spend-guard/http

At a glance

Type: MCP server
Publisher: a2awire.com (verified by the MCP Registry)
Status: Working at last check
Tools: 4
Token cost: About 2,476 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

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 agent-spend-guard https://a2awire.com/mcp/connectors/spend-guard/http

Claude Desktop

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

Codex (config.toml)

[mcp_servers.agent-spend-guard]
url = "https://a2awire.com/mcp/connectors/spend-guard/http"

Gemini CLI

{"mcpServers":{"agent-spend-guard":{"httpUrl":"https://a2awire.com/mcp/connectors/spend-guard/http"}}}

Cursor

{"mcpServers":{"agent-spend-guard":{"url":"https://a2awire.com/mcp/connectors/spend-guard/http"}}}

VS Code

{"servers":{"agent-spend-guard":{"type":"http","url":"https://a2awire.com/mcp/connectors/spend-guard/http"}}}

Antigravity

agy mcp add agent-spend-guard https://a2awire.com/mcp/connectors/spend-guard/http

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":"agent-spend-guard","server_url":"https://a2awire.com/mcp/connectors/spend-guard/http","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"agent-spend-guard","server_url":"https://a2awire.com/mcp/connectors/spend-guard/http"}

spend_guard_check_purchase Moves money · ~768 tokens
Humans: sign up with your email at https://a2awire.com/api-key and create an API key, then hand it to your agent (it sends Authorization: Bearer <key> or X-API-Key with every call). Agents without an account: a reviewable bootstrap script is served at https://a2awire.com/api/v1/connectors/spend-guar
spend_guard_record_purchase Moves money · ~794 tokens
Humans: sign up with your email at https://a2awire.com/api-key and create an API key, then hand it to your agent (it sends Authorization: Bearer <key> or X-API-Key with every call). Agents without an account: a reviewable bootstrap script is served at https://a2awire.com/api/v1/connectors/spend-guar
spend_guard_report ~309 tokens
Humans: sign up with your email at https://a2awire.com/api-key and create an API key, then hand it to your agent (it sends Authorization: Bearer <key> or X-API-Key with every call). Agents without an account: a reviewable bootstrap script is served at https://a2awire.com/api/v1/connectors/spend-guar
spend_guard_set_rules ~605 tokens
Humans: sign up with your email at https://a2awire.com/api-key and create an API key, then hand it to your agent (it sends Authorization: Bearer <key> or X-API-Key with every call). Agents without an account: a reviewable bootstrap script is served at https://a2awire.com/api/v1/connectors/spend-guar

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