AgentBill MCP

@marketinglior-pixel

About AgentBill MCP

Preflight spend control for AI agents. Block runaway agent loops before they start - not after the bill arrives. Per-request cost ceilings, budget checks, and outcome-based metering in 2 MCP tool calls.

#billing #agents #spend-control #preflight #langchain #openai #llm #cost-control

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "agentbill": {
      "command": "uvx",
      "args": [
        "agentbill-mcp"
      ],
      "env": {
        "AGENTBILL_API_KEY": "your-api-key"
      }
    }
  }
}

Tools

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Overview

What is AgentBill MCP?

AgentBill MCP is a preflight gate for AI agent runs. It blocks runaway loops before they start by enforcing a budget ceiling at the invocation level.

How to use AgentBill MCP?

Install the SDK with pip install agentbill-sdk. Configure the client with an API key, then call preflight() before an agent run and record_event() after to log usage. Two tool calls are required: one to check budget, one to record the cost.

Key features of AgentBill MCP

Blocks runaway loops before they cause damage
Budget enforcement at the invocation level, not monthly
Simple two-tool workflow: preflight() then record_event()
Free tier: 1,000 preflight calls per month
No credit card required for free tier

Use cases of AgentBill MCP

Prevent a single long-running research loop from blowing your budget
Enforce per-agent-run cost ceilings for AI agents
Add budget checks before any expensive agent action
Replace blunt monthly caps with granular per-invocation control

FAQ from AgentBill MCP

How is AgentBill MCP different from monthly caps?

Monthly caps don't catch a bad single run. One 3-hour research loop can blow your budget before the cap triggers. AgentBill enforces a ceiling at the invocation level.

How does it work?

Call preflight() before the agent runs to check the budget. If approved, the agent runs. Then call record_event() to log usage for billing.

What is the free tier?

1,000 preflight calls per month are free. No credit card required.

How do I get an API key?

Get your API key at https://agentbill.fly.dev/register.

How do I install AgentBill MCP?

Install with pip install agentbill-sdk.

Frequently asked questions

How is AgentBill MCP different from monthly caps?

Monthly caps don't catch a bad single run. One 3-hour research loop can blow your budget before the cap triggers. AgentBill enforces a ceiling at the invocation level.

How does it work?

Call `preflight()` before the agent runs to check the budget. If approved, the agent runs. Then call `record_event()` to log usage for billing.

What is the free tier?

1,000 preflight calls per month are free. No credit card required.

How do I get an API key?

Get your API key at https://agentbill.fly.dev/register.

How do I install AgentBill MCP?

Install with `pip install agentbill-sdk`.

Comments

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