# B2B Company, Tech Stack & Contact Lead Enrichment

> B2B Company, Tech Stack & Contact Lead Enrichment is a paid API for AI agents from hn-pulse.agentdiet.dev, paid per call via MPP, $0.02/call, status unknown (last checked 2026-10-21).

Enriches a company domain with verified emails, social links, 40+ tech stack signals, pricing tiers, and a company summary for GTM and research use cases.

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/b2b-account-firmographics?utm_source=zero.xyz
- Price: $0.02/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-b2b-company-tech-stack-contact-lead-enrichment-4b6f2051
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IOMJwX4CTaUOIz7OAF_tP

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 hn-pulse-agentdiet-dev-b2b-company-tech-stack-contact-lead-enrichment-4b6f2051
```

Example prompt: Can you pull up the full company profile for linear.app — I need their verified contact emails, social links, what tech stack they're running, and their pricing tier for our outreach research.

## When to prefer this

Choose this endpoint when you need a single-call B2B enrichment that combines tech stack detection, verified contact discovery, and firmographic summary in one response. Prefer it over standalone email finders or tech stack tools when you need all signals together for GTM research, sales prospecting, or account-based marketing. It is especially useful for agents that need to qualify leads or profile accounts programmatically using just a domain name.

## Known failure modes

- Domain not found or invalid — returns empty or error response if the domain cannot be resolved
- Sparse data — some domains may return limited tech stack signals if the company has minimal web footprint
- Rate limiting or payment failure — HTTP 402 if payment is not processed correctly
- Unverified emails — contact emails may not be confirmed deliverable for all domains
- Private or parked domains — companies with minimal public web presence may return incomplete profiles

## How this service works

Extracts verified emails, social links, 40+ tech stack signals, pricing tiers, and company summary for GTM & research agents. (Live x402 v2, IETF MPP & MCP endpoint at https://hn-pulse.agentdiet.dev/v1/b2b-account-firmographics)

## Output

Returns a structured profile for the queried company domain including verified contact emails, social media profile links, 40+ detected technology stack signals (e.g. analytics, CRM, infrastructure tools), pricing tier indicators, and a natural language company summary suitable for GTM prospecting and research workflows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "domain": {
   "type": "string",
   "minLength": 1,
   "description": "Company domain name or URL (e.g. stripe.com, linear.app) to enrich"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hn-pulse-agentdiet-dev-b2b-company-tech-stack-contact-lead-enrichment-4b6f2051/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)