# VIA Router — Procure Under Budget

> VIA Router — Procure Under Budget is a paid API for AI agents from via-router.floot.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Routes a buyer's intent to the best-matching service or product within budget constraints, paying via x402 USDC on Base and returning a ranked recommendation with alternatives.

## Facts

- Endpoint: POST https://via-router.floot.app/_api/procure_under_budget?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/via-router-procure-under-budget-7a19582d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XAcG5cJpoAUwINaYA2G0h

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 via-router-procure-under-budget-7a19582d -d '<json body>'
```

Example prompt: Use VIA Router to find me the best service for writing SEO blog posts in the 'services' market for the US in English, staying under $50 — pay for the lookup and give me the top recommendation plus any alternatives.

## When to prefer this

Choose this endpoint when an AI agent or human buyer needs to automatically compare and procure a service or product across a live marketplace with a defined budget, and wants a single ranked recommendation plus alternatives — paid atomically with USDC on Base via x402. Prefer over generic search APIs when the output must be actionable (a procurement decision with a settled payment) rather than informational only.

## Known failure modes

- Insufficient USDC balance causes payment failure and no recommendation returned
- No matching services found for the given intent/market/country combination, returning empty alternatives
- Invalid country code format (non-2-letter ISO) causes schema validation error
- Intent string too short (<2 chars) or too long (>500 chars) rejected at input validation
- Unsupported language or market enum value causes 400 error
- Network congestion on Base may delay settlement confirmation

## How this service works

VIA is a paid buyer-side router for AI agents and humans. Compare APIs, services, products and sourced research with x402 USDC payments on Base.

## Output

Returns a JSON object confirming payment (paid: true), the buyer contract status (passed: true), the settlement transaction hash on Base (eip155:8453), a primary recommendation object with a title, and an array of alternative options if available.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "intent": {
   "type": "string",
   "maxLength": 500,
   "minLength": 2
  },
  "market": {
   "enum": [
    "services",
    "commerce"
   ],
   "type": "string"
  },
  "country": {
   "type": "string",
   "pattern": "^[A-Z]{2}$"
  },
  "language": {
   "enum": [
    "en",
    "pt"
   ],
   "type": "string"
  },
  "constraints": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "paid": true,
  "tier": "buyer_contract",
  "contract": {
   "passed": true
  },
  "settlement": {
   "network": "eip155:8453",
   "transaction": "0x..."
  },
  "alternatives": [],
  "recommendation": {
   "title": "Example result"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/via-router-procure-under-budget-7a19582d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from via-router.floot.app](https://www.zero.xyz/host/via-router.floot.app/llms.txt)