# VenturePulse Market Size Analyzer

> VenturePulse Market Size Analyzer is a paid API for AI agents from venturepulse-nine.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).

Generates a credible TAM/SAM/SOM market sizing analysis using both bottom-up and top-down methodologies, with comparable company benchmarks, stress-test questions, and VC defense strategies

## Facts

- Endpoint: GET https://venturepulse-nine.vercel.app/api/startup/market-size
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/venturepulse-market-size-analyzer-9dcabc7d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NQd4ga7Jds9dDlWioAW3t

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 venturepulse-market-size-analyzer-9dcabc7d
```

Example prompt: Can you build a full TAM/SAM/SOM market sizing analysis for my B2B HR software startup targeting mid-market US companies, using both bottom-up and top-down approaches, and give me the comparable companies and the tough questions VCs will ask so I can defend the numbers?

## When to prefer this

Choose this endpoint when a founder needs to build or validate market sizing specifically for a fundraising pitch deck or VC meeting, and requires not just numbers but the reasoning, benchmarks, and defensive talking points that accompany those numbers. It is distinct from generic market research tools because it outputs investor-facing narrative alongside the quantitative estimates and anticipates VC scrutiny.

## Known failure modes

- Insufficient market context provided — returns generic or low-confidence estimates
- Niche or highly novel market with limited comparable data — comparable company list may be sparse
- Overly broad sector description results in imprecise TAM/SAM/SOM segmentation
- Service unavailability returns HTTP 402 or 5xx with no analysis
- Geographic scope ambiguity may produce global estimates when regional ones were intended

## How this service works

Startup funding intelligence API. VC round data, investor matching, pitch deck scoring, term sheet decoding, cap table modeling, global accelerator directory, market sizing, legal formation, comparable deals, and due diligence prep. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.

## Output

Returns a structured market sizing report including TAM, SAM, and SOM estimates derived from both bottom-up and top-down methodologies, a list of comparable public and private companies with relevant metrics, anticipated VC stress-test questions about the market size assumptions, and guidance on how to credibly defend each figure in a fundraising context.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lang": {
       "type": "string",
       "description": "en | es | fr | de | ja | pt | it | nl | ko | zh | ar (default: en)"
      },
      "approach": {
       "type": "string",
       "description": "top-down | bottom-up | both (default: both)"
      },
      "geography": {
       "type": "string",
       "description": "global | us | eu | uk | apac | latam | mena | africa | specific country (default: global)"
      },
      "description": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sam": {
   "value_usd": "$22B",
   "explanation": "English-speaking markets with cloud-first SMEs under 50 employees",
   "sam_pct_of_tam": 12
  },
  "som": {
   "value_usd": "$440M",
   "explanation": "Realistic 5-year capture assuming 2% SAM penetration",
   "years_to_som": "5"
  },
  "tam": {
   "value_usd": "$180B",
   "explanation": "Global SME accounting software market per IDC 2025 report",
   "methodology": "top-down",
   "growth_rate_pct": "12% CAGR"
  },
  "bottom_up_build": "4.2M target SMEs × $105 avg annual subscription = $441M at full penetration"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/venturepulse-market-size-analyzer-9dcabc7d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from venturepulse-nine.vercel.app](https://www.zero.xyz/host/venturepulse-nine.vercel.app/llms.txt)