# Business Frameworks – Buyer Tier Classifier (market/buyers)

> Business Frameworks – Buyer Tier Classifier (market/buyers) is a paid API for AI agents from business-frameworks.matryoshka-paradigms.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-13).

Sorts a market node's buyers into four credit-quality tiers (cash-funded investment grade through speculative/merchant) and records the marginal demand tier mix for use in pricing power and credit shock analysis.

## Facts

- Endpoint: GET https://business-frameworks.matryoshka-paradigms.workers.dev/node/market/buyers?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/business-frameworks-buyer-tier-classifier-market-buyers-56f778b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TrYhCkVDF3I9WT6UocQtD

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 business-frameworks-buyer-tier-classifier-market-buyers-56f778b4
```

Example prompt: Before I score pricing power for the distribution node, classify its buyers into credit tiers — cash-funded investment grade down through merchant and speculative — and give me the marginal demand tier mix so I know how demand will behave under a credit shock.

## When to prefer this

Use this endpoint as a prerequisite step before invoking pricing power scoring or credit shock transfer logic within the Business Frameworks / Matryoshka Paradigms suite. It is specifically designed for structured credit-tier segmentation of buyers at a market node, not general customer segmentation or CRM analytics. Prefer it when you need a theoretically grounded, four-tier framework that distinguishes cash-funded investment grade from merchant and speculative demand, and when the downstream decision requires knowing who the marginal buyer is.

## Known failure modes

- Missing or invalid node identifier may return an empty or error response
- No buyer data available for the specified node results in an incomplete tier breakdown
- Network or worker timeout on the Cloudflare Workers edge returns a 5xx error
- Payment not included or insufficient USDC (below $0.03) results in a 402 payment required response

## How this service works

Business Frameworks · business-frameworks/market/buyers@1.2 — sort a node's buyers into four tiers by credit standing and funding structure, from cash-funded investment grade to merchant and speculative, and record the tier mix of marginal demand: who pays decides how demand behaves under stress. Call before scoring pricing power or transferring a credit shock; returns 320 tokens of original synthesis (terse variant 140) with related handles; free layer at /catalogue.

## Output

Returns approximately 320 tokens of original synthesis (or a terse 140-token variant) classifying the node's buyers into four tiers by credit standing and funding structure, the tier mix of marginal demand, and related framework handles for downstream steps like pricing power scoring or credit shock transfer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-frameworks-buyer-tier-classifier-market-buyers-56f778b4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from business-frameworks.matryoshka-paradigms.workers.dev](https://www.zero.xyz/host/business-frameworks.matryoshka-paradigms.workers.dev/llms.txt)