# DataLayer

> B2B enrichment API with 60M companies, 300M verified contacts, and real-time intent signals. Built for developers and AI agents.

DataLayer is a REST API that enriches companies and people by domain, email, LinkedIn URL, or name. Every enrichment includes signals at no extra cost: Google ad spend, web traffic, technographics, funding history, and employee growth. Native MCP server for Claude, Cursor, and any AI agent framework.

## Machine-Readable API Specification

- [OpenAPI 3.1 spec (JSON)](https://api.datalayer.sh/openapi.json): Complete machine-readable API schema with all endpoints, request/response schemas, and authentication details. Use this for programmatic integration.
- [API llms.txt](https://api.datalayer.sh/docs/llms.txt): Full API surface documentation for AI agents.

## Key Facts

- Base URL: https://api.datalayer.sh
- Auth: X-API-Key header (keys start with sk_)
- Free plan: 10 credits, no credit card
- MCP server: npm install @datalayer-sh/mcp
- Interactive docs: https://api.datalayer.sh/docs

## Docs

- [Quickstart](https://datalayer.sh/docs/quickstart): Make your first API call in under 2 minutes
- [Authentication](https://datalayer.sh/docs/authentication): API key auth via X-API-Key header
- [Rate Limits & Credits](https://datalayer.sh/docs/rate-limits): Per-plan rate limits and credit costs per endpoint
- [Error Responses](https://datalayer.sh/docs/errors): Consistent JSON error format with error codes

## API Reference

### Enrichment
- [Enrich Person](https://datalayer.sh/docs/api-reference/enrichment/person): Full professional profile from email, LinkedIn URL, or name+domain. 1 credit.
- [Enrich Company](https://datalayer.sh/docs/api-reference/enrichment/company): Full company profile with technographics, funding, traffic, ad spend. 1 credit.
- [Bulk Enrich Persons](https://datalayer.sh/docs/api-reference/enrichment/person-bulk): Up to 100 people per call. 1 credit per match.
- [Bulk Enrich Companies](https://datalayer.sh/docs/api-reference/enrichment/company-bulk): Up to 100 companies per call. 1 credit per match.

### Lookup
- [People Lookup](https://datalayer.sh/docs/api-reference/lookup/people): Find one person by email, phone, or LinkedIn URL. 1 credit.
- [Company Lookup](https://datalayer.sh/docs/api-reference/lookup/companies): Find one company by domain, LinkedIn URL, or name. 1 credit.

### Search
- [People Search](https://datalayer.sh/docs/api-reference/search/people): Filtered discovery across 300M contacts. 1 credit per result.
- [Company Search](https://datalayer.sh/docs/api-reference/search/companies): Filtered discovery across 60M companies with technographic, funding, traffic filters. 1 credit per result.

### Company Intel
- [Employees](https://datalayer.sh/docs/api-reference/company-intel/employees): List employees at a company by domain. 1 credit.
- [Headcount](https://datalayer.sh/docs/api-reference/company-intel/headcount): Department-level headcount breakdown. 1 credit.
- [Jobs](https://datalayer.sh/docs/api-reference/company-intel/jobs): Open roles by department. 1 credit.
- [Technographics](https://datalayer.sh/docs/api-reference/company-intel/technographics): Full tech stack — CRM, cloud, CMS, analytics, marketing, sales tools. 1 credit.

### Signals
- [Intent Signals](https://datalayer.sh/docs/api-reference/signals/intent): Companies showing buying intent scored 0-100 by Google ad spend, traffic, hiring velocity, employee growth, funding. 5 credits per result.

## MCP Server

Install: npm install -g @datalayer-sh/mcp
Config: set DATALAYER_API_KEY environment variable

11 tools: enrich_company, enrich_person, search_companies, search_people, lookup_person, lookup_company, company_employees, company_headcount, company_technographics, company_jobs, find_intent_signals

Works with Claude Desktop, Cursor, and any MCP-compatible AI agent.

## Pricing

| Plan | Price | Credits | Rate Limit |
|------|-------|---------|------------|
| Free | $0 | 10 one-time | 10/min |
| Starter | $49/mo | 1,000/mo | 30/min |
| Growth | $499/mo | 10,000/mo | 120/min |
| Scale | $1,499/mo | 50,000/mo | 600/min |
| Enterprise | Custom | Custom | Custom |

Top-ups: $0.06/credit, minimum 500 credits ($30), expire 1 year.
Annual billing: 20% off.

## Unique Signals (included free with every enrichment)

- Monthly Google Ads spend
- Monthly web traffic (organic + paid)
- Employee growth rate (LinkedIn)
- Full tech stack (CRM, cloud, CMS, analytics, marketing automation, sales automation)
- Funding history (amount, round, date, lead investors)
- Open roles count by department
- Mobile app and web app detection