# BlitzAPI Free Seller Quote & Purchase Guide

> BlitzAPI Free Seller Quote & Purchase Guide is a free API for AI agents from agents.blitz-api.ai, callable via x402, Free, status healthy (last checked 2026-10-13).

Returns a free, zero-cost quote for a BlitzAPI task including contract details, pricing, prerequisites, and next steps — without executing any purchase.

## Facts

- Endpoint: POST https://agents.blitz-api.ai/zeroclick/agent/quote?utm_source=zero.xyz
- Price: Free
- Payment: x402
- Status: healthy
- Last checked: 2026-10-13
- Activations on Zero: 0
- Provider: agents.blitz-api.ai
- Website: https://agents.blitz-api.ai
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agents-blitz-api-ai-blitzapi-free-seller-quote-purchase-guide-ef278426
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bd5rG3YE81bxv6i9RtfHw

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 agents-blitz-api-ai-blitzapi-free-seller-quote-purchase-guide-ef278426 -d '<json body>'
```

Example prompt: Before I commit any budget, can you get me a free BlitzAPI quote for searching 1000 company profiles by industry and location, with a total cash budget of $200 via card payment?

## When to prefer this

Use this endpoint when an agent or user wants to understand the cost, contract, and prerequisites for a BlitzAPI task before committing any budget or making a purchase. It is the correct first step for any BlitzAPI workflow — especially when the user lacks a crypto wallet and needs wallet-free guidance. Prefer this over jumping directly to the paid endpoints when the plan, quantity, or pricing is uncertain.

## Known failure modes

- Goal description too vague — endpoint returns needs_input status with clarifying questions
- Requested task is outside BlitzAPI's capabilities — returns unsupported status
- Service temporarily unavailable — returns unavailable status
- Invalid budgetUsd format (non-numeric or too many decimal places) — schema validation error
- goal field missing — returns 400 bad request

## How this service works

Describe your task to get the matching API contract, prices, prerequisites and next steps. This is a $0 wallet-proof lookup, not the seller's paid service. No purchase is executed. Without a wallet, use /zeroclick/agent/guide.

## Output

A JSON object with a status field (quoted, ready, needs_input, blocked, unknown, unsupported, or unavailable), a priceUsd always set to '0', a markdown-formatted guide containing the matched API contract, exact pricing, prerequisites, and next steps, and a guideUrl pointing to a wallet-free advisor endpoint for further planning.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "goal"
 ],
 "properties": {
  "goal": {
   "type": "string",
   "maxLength": 2000,
   "minLength": 1,
   "description": "Describe the task and known inputs. Do not include credentials."
  },
  "payment": {
   "enum": [
    "card"
   ],
   "type": "string",
   "description": "Known payment method for the eventual purchase. This seller accepts card payments only."
  },
  "quantity": {
   "type": "integer",
   "maximum": 1000000,
   "minimum": 1,
   "description": "Number of API calls, not returned items. Omit when unknown; describe desired output in goal."
  },
  "budgetUsd": {
   "type": "string",
   "pattern": "^(0|[1-9]\\d{0,8})(\\.\\d{1,6})?$",
   "description": "Total cash budget in USD. A quote does not authorize spending."
  },
  "requirements": {
   "type": "string",
   "maxLength": 300,
   "minLength": 1
  },
  "humanAvailable": {
   "type": "boolean",
   "description": "Whether a human is in the loop. False recommends anonymous auth for a new autonomous identity; omit when unknown. Executing a human's request without further interruptions does not by itself mean false."
  },
  "budgetExclusive": {
   "type": "boolean"
  },
  "reviewAfterCalls": {
   "type": "integer",
   "maximum": 1000000,
   "minimum": 1
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "status",
  "priceUsd",
  "guide",
  "guideUrl"
 ],
 "properties": {
  "guide": {
   "type": "string",
   "description": "Markdown guidance containing the task result, exact contract, pricing and next steps when available. No purchase is executed."
  },
  "status": {
   "enum": [
    "quoted",
    "ready",
    "needs_input",
    "blocked",
    "unknown",
    "unsupported",
    "unavailable"
   ],
   "type": "string"
  },
  "guideUrl": {
   "type": "string",
   "format": "uri",
   "description": "Wallet-free advisor endpoint for further planning or recovery."
  },
  "priceUsd": {
   "type": "string",
   "const": "0"
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agents-blitz-api-ai-blitzapi-free-seller-quote-purchase-guide-ef278426/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.blitz-api.ai](https://www.zero.xyz/host/agents.blitz-api.ai/llms.txt)