x402 Micropayments Pure Logic

Harvey Budget
MCP Server

Agent Budget Management + ROI Tracking

x402-paid MCP server for agent spending management. Pure logic - no LLM. Track budgets, report spending, analyze ROI, and enforce spending limits across agent operations.

View on GitHub npm @meltingpixels/harvey-budget
harvey-budget
$ curl -X POST https://budget.rugslayer.com/mcp \
-d '{"method": "check_spend", "params": {
"agent_id": "agent-001",
"amount": 0.05,
"service": "harvey-tools"
}}'
 
{
"approved": true,
"remaining_budget": 4.95,
"daily_limit": 10.00,
"daily_spent": 0.35,
"roi_score": 0.78
}
 
Payment: 0.001 USDC via x402

// CAPABILITIES

What It Does

Spend Approval

Pre-check whether a spend fits within agent budget and daily limits. Get instant approval or denial before committing funds.

Spend Reporting

Log every transaction with service, tool, amount, and outcome. Build a complete audit trail of all agent spending activity.

Budget Analytics

Spending reports with daily, weekly, and monthly breakdowns. ROI tracking shows which services deliver the most value.

Agent Registration

Register new agents with custom budget limits and daily caps. Free tool - no payment required to onboard agents.

Daily Limits

Automatic daily spending cap enforcement with configurable thresholds. Prevents runaway agent costs with hard guardrails.

Zero LLM Cost

Pure logic implementation. No AI inference fees on budget operations. Fast, deterministic, and predictable pricing.

// DOCUMENTATION

Connect & Use

MCP Connection

{"mcpServers": {"harvey-budget": {"url": "https://budget.rugslayer.com/sse"}}}

Available Tools

ToolDescriptionPrice
check_spend Pre-approve a spending request $0.001
report_spend Log a completed transaction $0.001
get_spending_report Budget analytics and ROI $0.005
register_agent Register a new agent budget Free
get_health Server health check Free
list_tools List available tools Free

// BUILT WITH

Tech Stack

Hono MCPay Supabase TypeScript x402 Solana

Control your agent spending

Pure logic budget management. No LLM overhead. Pay fractions of a cent per call via x402 USDC.

View on GitHub Back to Portfolio