io.github.meltingpixelsai/zero-core-budget

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Agent spending mgmt, budget tracking, ROI. Zero Core Budget.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "zero-core-budget": {
      "url": "https://budget.rugslayer.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (6)

• list_tools

  List all available Harvey Budget tools with pricing and input requirements. Use this for discovery.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• health

  Check Harvey Budget server status, uptime, and payment network configuration.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• register_agent

  Register an agent with daily and weekly budget limits, or update them. The agent_id belongs to the wallet that pays for this call: call check_spend, report_spend and get_spending_report from the same wallet.

  Parameters:

  • agent_id (required) — string — Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it
  • daily_limit_usd (required) — number — Maximum daily spending in USD
  • weekly_limit_usd (required) — number — Maximum weekly spending in USD
  • category_limits — object — Optional per-category weekly limits (e.g. {security: 1.0, content: 2.0})

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• check_spend

  Pre-spend budget approval check. Verifies daily/weekly/category limits, estimates ROI from your own past spends with this service, and suggests cheaper alternatives you have used. Call this BEFORE paying for any service.

  Parameters:

  • agent_id (required) — string — Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it (register it first)
  • service_id (required) — string — Service you want to pay for (e.g. 'harvey-tools/scrape_url')
  • amount_usd (required) — number — Amount you're about to spend in USD
  • category (required) — string — Spending category

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• report_spend

  Record a completed spend with optional outcome tracking. Call this AFTER paying for a service to track spending and build ROI history.

  Parameters:

  • agent_id (required) — string — Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it
  • service_id (required) — string — Service that was used
  • amount_usd (required) — number — Amount spent in USD
  • category (required) — string — Spending category
  • value_received — string — Description of value received
  • outcome_success — boolean — Whether the service call succeeded

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_spending_report

  Detailed spending analytics report. Returns total spent, category breakdown, top services with ROI, and optimization recommendations. Use to understand spending patterns and find inefficiencies.

  Parameters:

  • agent_id (required) — string — Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it
  • period (required) — string — Report period

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.