# NO HANDS AI Budget Check

> NO HANDS AI Budget Check is a paid API for AI agents from nohands-coinbase-bazaar.bytoken2023.workers.dev, paid per call via x402, $0.020005/call, status unknown (last checked 2026-11-02).

Compares a requested spend amount against a supplied remaining budget and per-transaction limit, returning an advisory policy decision (ALLOW/REVIEW/BLOCK) without reserving or authorizing funds.

## Facts

- Endpoint: POST https://nohands-coinbase-bazaar.bytoken2023.workers.dev/x402/v1/policy/budget-check?utm_source=zero.xyz
- Price: $0.020005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/no-hands-ai-budget-check-ca2692d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KnMMnemHzks_-BetJ8XgJ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability no-hands-ai-budget-check-ca2692d1 -d '<json body>'
```

Example prompt: Before making this $25 USDC purchase, check whether it fits within my remaining budget of $80 USDC with a per-transaction limit of $50 USDC for agent 'agent-123' doing an 'api_purchase' — and flag it for review if it goes above $40.

## When to prefer this

Use this endpoint when an AI agent needs a lightweight, advisory pre-spend check before executing a payment — especially when enforcing per-transaction caps, remaining budget headroom, or auto-approval thresholds without any side effects. Prefer it over full authorization flows when you only need a policy decision, not a fund reservation.

## Known failure modes

- Invalid number format in requested_amount or remaining_budget returns a validation error
- requested_amount or remaining_budget fields missing causes a 400 bad request
- Currency enum value not in [USDC, USDT, USD] is rejected
- Pattern violations on agent_id or purpose fields cause schema errors
- Service unavailability returns a 5xx error

## How this service works

Compare caller-supplied requested spend with supplied budget and transaction limits. Advisory policy calculation only; it does not reserve funds, enforce a wallet limit or authorize payment.

## Output

Returns an advisory policy result (e.g. ALLOW, REVIEW, or BLOCK) indicating whether the requested spend fits within the supplied remaining budget and per-transaction limit, along with reasoning. Does not reserve, hold, or authorize any funds — purely advisory.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "purpose": {
   "type": "string",
   "example": "api_purchase",
   "pattern": "^[A-Za-z0-9._:-]{2,120}$",
   "description": "Purpose code for the requested spend."
  },
  "agent_id": {
   "type": "string",
   "example": "agent-123",
   "pattern": "^[A-Za-z0-9._:-]{1,128}$",
   "description": "Caller-defined agent or principal id."
  },
  "currency": {
   "enum": [
    "USDC",
    "USDT",
    "USD"
   ],
   "type": "string",
   "example": "USDC",
   "description": "Policy currency."
  },
  "idempotency_key": {
   "type": "string",
   "maxLength": 128,
   "description": "Optional idempotency key for deterministic decision replay."
  },
  "remaining_budget": {
   "type": "string",
   "example": "100",
   "pattern": "^[0-9]+(?:\\.[0-9]{1,6})?$",
   "description": "Remaining budget available to this agent."
  },
  "requested_amount": {
   "type": "string",
   "example": "250",
   "pattern": "^[0-9]+(?:\\.[0-9]{1,6})?$",
   "description": "Requested spend amount."
  },
  "per_transaction_limit": {
   "type": "string",
   "example": "150",
   "pattern": "^[0-9]+(?:\\.[0-9]{1,6})?$",
   "description": "Maximum amount allowed in one transaction."
  },
  "auto_approval_threshold": {
   "type": "string",
   "pattern": "^[0-9]+(?:\\.[0-9]{1,6})?$",
   "description": "Optional amount above which REVIEW is required even when budget fits."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/no-hands-ai-budget-check-ca2692d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nohands-coinbase-bazaar.bytoken2023.workers.dev](https://www.zero.xyz/host/nohands-coinbase-bazaar.bytoken2023.workers.dev/llms.txt)