DataForB2B MCP Server for Claude

Overview

DataForB2B provides a native Model Context Protocol server for B2B data operations. Agents can search people and companies, enrich profiles and domains, and run agentic discovery against a dataset of 800M+ profiles and 75M+ companies without writing custom REST glue code.

The hosted endpoint is https://mcp.dataforb2b.ai/mcp, registered as ai.dataforb2b/dataforb2b. The same dataset is also available through REST and webhooks documented at dataforb2b.ai.

Features

• search_people with 60+ filter columns and typed operators.
• search_companies with 50+ company filters including funding and size.
• enrich_profile to resolve URLs or emails into structured person records.
• enrich_company to resolve domains or names into company records.
• agentic_search for natural-language queries with ranked verified results.
• Streamable HTTP transport for Claude, Cursor, Cline, and Continue.

Use Cases

• Build a VP Sales prospect list for US companies with 501–1000 employees.
• Enrich a LinkedIn profile URL before drafting outreach copy.
• Resolve decision-makers at a target account domain.
• Feed ranked leads into an AI SDR workflow from chat.
• Validate ICP coverage before launching a recruiting search.

Installation

Claude (Connectors)

1. Add a custom connector under Settings → Connectors.
2. Enter https://mcp.dataforb2b.ai/mcp.
3. Configure a Bearer token with your DataForB2B API key.

Claude Code

claude mcp add --transport http dataforb2b https://mcp.dataforb2b.ai/mcp

Add the API key per your client's remote-auth mechanism.

Configuration

{
  "mcpServers": {
    "dataforb2b": {
      "url": "https://mcp.dataforb2b.ai/mcp",
      "type": "http",
      "headers": {
        "Authorization": "Bearer YOUR_DATAFORB2B_API_KEY"
      }
    }
  }
}

Tool responses include credits_used and isError fields for auditing.

Examples

People search

Find VP Sales leaders at US companies with 501-1000 employees who are not open to work.

Company enrichment

Enrich stripe.com and return funding stage, employee count, and industry.

Agentic discovery

Use agentic search to find fintech companies hiring senior compliance officers in Europe.

Security

• Export only the minimum fields required for your workflow.
• Confirm opt-out and outreach policies before emailing enriched contacts.
• Rotate API keys if they were shared in connector screenshots or chat logs.

Troubleshooting

401 unauthorized

Verify the Bearer token matches an active DataForB2B API key.

Empty result sets

Relax filters, check country coverage, and confirm spelling of titles or company names.

Credit exhaustion

Review plan limits at DataForB2B; failed lookups typically do not consume credits.

Schema validation errors

Use JSON-schema typed filters from tool definitions; the model must supply valid operators and column names.