# Urban Population Growth Macroeconomic Report

> Urban Population Growth Macroeconomic Report is a paid API for AI agents from reportbazaar.app.workbuddy.host, paid per call via x402, $0.09/call, status unknown (last checked 2026-10-02).

Fetches a comprehensive urban population growth report (2015–2025, 20 economies) covering rankings, trends, volatility, and year-by-year matrices, paid per call in USDC via x402.

## Facts

- Endpoint: GET https://reportbazaar.app.workbuddy.host/report/macro-urban-growth?utm_source=zero.xyz
- Price: $0.09/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/urban-population-growth-macroeconomic-report-5ce13295
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gRPrKRJEaTohO4U-HxCkk

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 urban-population-growth-macroeconomic-report-5ce13295
```

Example prompt: Pull the urban population growth report covering 2015 to 2025 across 20 economies and give me the results as JSON — I want rankings, trend lines, and volatility figures.

## When to prefer this

Choose this endpoint when you need a ready-made, multi-economy urban population growth analysis with rankings, trends, and volatility already computed — especially if you want to avoid building your own data pipeline from raw World Bank data. Ideal for agents that need to pay per fetch without managing API keys or subscriptions. Prefer this over generic World Bank API wrappers when you need derived metrics (R², volatility, rankings) rather than raw indicator values.

## Known failure modes

- Payment not included or insufficient USDC via x402 — returns HTTP 402 Payment Required
- Invalid format query parameter value — returns 400 Bad Request
- Service unavailable or upstream data source unreachable — returns 503
- Network timeout on slow connections

## How this service works

Machine-to-machine macroeconomic report API. Pay per fetch in USDC over x402. No accounts, no API keys.

## Output

A structured report covering urban population growth (SP.URB.GROW) for 20 economies from 2015 to 2025, including key findings, a ranking table, share of group totals, trend lines with R-squared, volatility metrics, a full year-by-year data matrix, and coverage/data-quality disclosures. Available in html, json, csv, or summary-csv formats.

## 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": {
      "format": {
       "enum": [
        "html",
        "json",
        "csv",
        "summary-csv"
       ],
       "type": "string",
       "description": "Delivery format. csv is a tidy long panel; summary-csv is one row per economy of derived metrics."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "years": "2015:2025",
  "schema": "/schema/report.json",
  "formats": [
   "html",
   "json",
   "csv",
   "summary-csv"
  ],
  "contains": [
   "key findings",
   "ranking table",
   "share of group total",
   "trend with R²",
   "volatility",
   "full year-by-year matrix",
   "coverage and data-quality disclosure"
  ],
  "economies": 20,
  "indicators": [
   "SP.URB.GROW"
  ],
  "contentType": "text/html",
  "description": "Urban Population Growth Report",
  "freePreview": "/preview/macro-urban-growth",
  "indicatorsLabel": [
   "Urban population growth (annual %)"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/urban-population-growth-macroeconomic-report-5ce13295/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from reportbazaar.app.workbuddy.host](https://www.zero.xyz/host/reportbazaar.app.workbuddy.host/llms.txt)