Diaspora metro snapshot — directory counts by metro and category

Counts of African and Caribbean diaspora business listings in the Ni Biashara directory (nibiashara.com) by metro and by category, with contact-field coverage, computed from the live directory at call time. Filter by metro and/or category, or omit both for the whole directory. Counts only, no business-level fields. Counts reflect the directory, not a census.

$0.02 per call — paid in USDC on Base over the x402 protocol, settled by Coinbase. No API key, no signup.

Parameters

Call it (any x402 client)

# 1. GET without payment → HTTP 402 with PAYMENT-REQUIRED (price, payTo, scheme "exact")
curl -i "https://agents.nibiashara.biz/shelf/diaspora-metro-snapshot?metro=&category="

# 2. Sign the payment (EIP-3009 transferWithAuthorization, gasless) and retry
#    with the PAYMENT-SIGNATURE header → response body is the delivery.

With the official JS client the whole flow is one wrapped fetch:

import { wrapFetchWithPayment } from "@x402/fetch";       // npm i @x402/fetch @x402/evm
const fetchPaid = wrapFetchWithPayment(fetch, { /* your EVM signer */ });
const res = await fetchPaid("https://agents.nibiashara.biz/shelf/diaspora-metro-snapshot?metro=&category=");
const data = await res.json();

Or install the MCP server (https://agents.nibiashara.biz/mcp, registry id biz.nibiashara/shelves) and use the job-named tool for this shelf, or buy_shelf as an escape hatch.

Example response (illustrative shape, not a live rate)

{
  "query": {
    "metro": "Houston"
  },
  "total_listings": 0,
  "by_metro": [],
  "by_category": [],
  "illustrative": true
}

Delivers

JSON { total_listings, by_metro[], by_category[], contact_coverage_pct, available_metros, available_categories, basis, source, as_of }

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