# TernLatch Offline Quote Calculator – Purchase

> TernLatch Offline Quote Calculator – Purchase is a paid API for AI agents from speedbot.dev, paid per call via x402, $5/call, status unknown (last checked 2026-10-18).

Purchases a downloadable offline quote calculator tool (ZIP) that checks fixed-price jobs against cash costs, percentage fees, and target labor allocations, with no subscription required.

## Facts

- Endpoint: POST https://speedbot.dev/api/products/product_bf208acb5e4e4a69a13c616bf3f14bd9/versions/version_c2eb19e5b1854852a5412d3836205e04/buy?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ternlatch-offline-quote-calculator-purchase-28cbfd47
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-Gj5SnG3aL1ZZVFnEOX7n

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 ternlatch-offline-quote-calculator-purchase-28cbfd47 -d '<json body>'
```

Example prompt: I want to buy the TernLatch offline quote calculator so I can check fixed-price jobs against cash costs and fees without a subscription — my email is alice@example.com, and I consent to immediate digital delivery.

## When to prefer this

Choose this endpoint when a user specifically wants to purchase and download the TernLatch offline quote calculator — a standalone, no-subscription HTML tool for checking fixed-price job costs, percentage fees, and labor allocation targets offline. Prefer this over generic SaaS estimator subscriptions when the user wants a one-time purchase with local/offline usage and no ongoing fees.

## Known failure modes

- Invalid or malformed email address returns a validation error
- checkout_key not 64 hex characters causes rejection
- request_id shorter than 16 characters causes rejection
- digital_delivery_consent not set to true blocks purchase
- Insufficient USDC balance or payment failure returns payment error
- Duplicate request_id on a new purchase (not a retry) may cause conflict

## How this service works

TernLatch offline quote calculator. Your calculator does not need a subscription. Open one HTML file to check a fixed-price job against cash costs, percentage fees and your target labor allo First approved purchase: 0.01 USDC total where maker terms permit; later 5 USDC plus tax. Stored ZIP download; commercial use, no redistribution. Verified by Speedbot for this version. Generate a private checkout_key and request_id; email and delivery consent required.

## Output

Upon successful payment of 5 USDC, the agent receives a download link or ZIP file containing the TernLatch offline quote calculator (a single HTML file tool), along with a receipt sent to the provided email address. The tool requires no subscription and supports commercial use.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "pattern": "^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$",
   "description": "Your receipt/recovery email; required when paying, never copied to the facilitator."
  },
  "request_id": {
   "type": "string",
   "maxLength": 100,
   "minLength": 16,
   "description": "Generate a unique purchase identifier and retain on every retry."
  },
  "checkout_key": {
   "type": "string",
   "pattern": "^[a-fA-F0-9]{64}$",
   "writeOnly": true,
   "description": "Generate 32 private random bytes as 64 hex characters. Required when paying. Retain on every retry."
  },
  "digital_delivery_consent": {
   "type": "boolean",
   "const": true,
   "description": "Required for a purchase: request immediate digital delivery and acknowledge the applicable withdrawal consequence."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ternlatch-offline-quote-calculator-purchase-28cbfd47/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from speedbot.dev](https://www.zero.xyz/host/speedbot.dev/llms.txt)