Zero Core Budget

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io.github.meltingpixelsai/zero-core-budgetv1.0.0

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

Finance & Payments

Source Website Registry entry

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Call this server's tools from your browser. Nothing to install.

https://budget.rugslayer.com/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

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.

agent_idstring, required

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)

categorystring, required

Spending category

amount_usdnumber, required

Amount you're about to spend in USD

service_idstring, required

Service you want to pay for (e.g. 'harvey-tools/scrape_url')

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (6)

check_spend

Argument	Type	Description
agent_id*	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)
category*	string	Spending category
amount_usd*	number	Amount you're about to spend in USD
service_id*	string	Service you want to pay for (e.g. 'harvey-tools/scrape_url')

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "agent_id",
    "service_id",
    "amount_usd",
    "category"
  ],
  "properties": {
    "agent_id": {
      "type": "string",
      "description": "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)"
    },
    "category": {
      "enum": [
        "security",
        "trading",
        "social",
        "content",
        "data",
        "infrastructure",
        "other"
      ],
      "type": "string",
      "description": "Spending category"
    },
    "amount_usd": {
      "type": "number",
      "minimum": 0,
      "description": "Amount you're about to spend in USD"
    },
    "service_id": {
      "type": "string",
      "description": "Service you want to pay for (e.g. 'harvey-tools/scrape_url')"
    }
  },
  "additionalProperties": false
}

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.

Argument	Type	Description
period*	string	Report period
agent_id*	string	Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "agent_id",
    "period"
  ],
  "properties": {
    "period": {
      "enum": [
        "day",
        "week",
        "month"
      ],
      "type": "string",
      "description": "Report period"
    },
    "agent_id": {
      "type": "string",
      "description": "Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it"
    }
  },
  "additionalProperties": false
}

health

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

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {},
  "additionalProperties": false
}

list_tools

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

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {},
  "additionalProperties": false
}

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.

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

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "agent_id",
    "daily_limit_usd",
    "weekly_limit_usd"
  ],
  "properties": {
    "agent_id": {
      "type": "string",
      "description": "Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it"
    },
    "category_limits": {
      "type": "object",
      "description": "Optional per-category weekly limits (e.g. {security: 1.0, content: 2.0})",
      "additionalProperties": {
        "type": "number"
      }
    },
    "daily_limit_usd": {
      "type": "number",
      "maximum": 10000,
      "minimum": 0.001,
      "description": "Maximum daily spending in USD"
    },
    "weekly_limit_usd": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0.001,
      "description": "Maximum weekly spending in USD"
    }
  },
  "additionalProperties": false
}

report_spend

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

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

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "agent_id",
    "service_id",
    "amount_usd",
    "category"
  ],
  "properties": {
    "agent_id": {
      "type": "string",
      "description": "Your agent's name. It belongs to the wallet you pay from: only calls paid from that wallet can read or change it"
    },
    "category": {
      "enum": [
        "security",
        "trading",
        "social",
        "content",
        "data",
        "infrastructure",
        "other"
      ],
      "type": "string",
      "description": "Spending category"
    },
    "amount_usd": {
      "type": "number",
      "minimum": 0,
      "description": "Amount spent in USD"
    },
    "service_id": {
      "type": "string",
      "description": "Service that was used"
    },
    "value_received": {
      "type": "string",
      "description": "Description of value received"
    },
    "outcome_success": {
      "type": "boolean",
      "description": "Whether the service call succeeded"
    }
  },
  "additionalProperties": false
}