B2B Lead Enrichment

io.github.Diego-Costa-TechPublished by GitHub account Diego-Costa-Techv1.0.0Updated Oct 24, 2026

Remote MCP server to enrich company profiles with structured B2B data and confidence scores.

VerifiedStreamable HTTPWeb executableData & AnalyticsBusiness & Commerce

Overview

AI-generated overview

Remote MCP server that enriches a B2B company profile from its domain with firmographic, technographic, intent and contact data plus a confidence score.

What you can do
  • Enrich a company by domain into a structured profile with firmographics, technology stack, buying-intent signals, contact data and a confidence score.
  • Request only the attribute types you need and list required fields.
  • Receive derived insights such as expansion or buying-intent notes alongside the raw data.
When to use it
Useful when an assistant has to qualify a lead, research a company before a sales call, enrich a list of companies for a campaign, or inspect a prospect's tech stack and intent signals.
Requirements
A remote streamable HTTP endpoint; no local runtime needed. An API key obtained by signing up on the provider's site, sent as an Authorization Bearer header (or an API_KEY environment variable in the Claude Desktop example). Network access to the provider's host.
Before you install
The API key is a paid credential and must be kept private. Usage is metered: the free tier allows 100 enrichments, the Pro tier is $49/month with overage charges, and billing applies to successful high-confidence enrichments. Company domains you submit are sent to a third-party service, and rate limits apply per tier.

Installation

In SourceWeft

  1. Open B2B Lead Enrichment in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Diego-Costa-Tech%2Flead-enrichment-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "b2b-lead-enrichment": {
      "type": "http",
      "url": "https://lead-enrichment-mcp.agent-infra.workers.dev/mcp"
    }
  }
}

README

B2B Lead Enrichment MCP API

The MCP-native API that AI agents use to enrich B2B company profiles with structured data.

Live Production URL

https://lead-enrichment-mcp.agent-infra.workers.dev

Status: Live and accepting requests

Quick Start

bash
# Test the APIcurl https://lead-enrichment-mcp.agent-infra.workers.dev/health
# Enrich a company (replace with your API key)curl -X POST https://lead-enrichment-mcp.agent-infra.workers.dev/mcp \  -H "Authorization: Bearer YOUR_API_KEY" \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"enrich_lead","arguments":{"domain":"stripe.com"}}}'

Pricing

TierMonthlyPriceOverage
Free100 enrichments$0N/A
Pro10,000 enrichments$49/month$0.05/enrichment
EnterpriseUnlimitedContact usCustom

Billing: Only for successful, high-confidence enrichments (confidence > 0.6). No charge for failed or low-quality enrichments.

Get an API Key

  1. Visit https://lead-enrichment-mcp.agent-infra.workers.dev
  2. Sign up for free tier or upgrade
  3. Copy your API key

MCP-Native for AI Agents

This API is built on the Model Context Protocol (MCP), making it natively discoverable and callable by AI agents like Claude, Cursor, and ChatGPT.

Claude Desktop

Add to claude_desktop_config.json:

json
{  "mcpServers": {    "lead-enrichment": {      "command": "npx",      "args": ["-y", "@anthropic-ai/mcp-server-lead-enrichment"],      "env": {        "API_KEY": "your-api-key-here"      }    }  }}

Cursor

Add in Cursor Settings > MCP > Add New Server:

json
{  "mcpServers": {    "lead-enrichment": {      "type": "http",        "url": "https://lead-enrichment-mcp.agent-infra.workers.dev/mcp",      "headers": {        "Authorization": "Bearer your-api-key-here"      }    }  }}

VS Code Copilot

Create .vscode/mcp.json:

json
{  "servers": {    "lead-enrichment": {      "transport": "streamable-http",        "url": "https://lead-enrichment-mcp.agent-infra.workers.dev/mcp",      "headers": {        "Authorization": "Bearer your-api-key-here"      }    }  }}

ChatGPT GPTs

Use the OpenAPI schema:

https://lead-enrichment-mcp.agent-infra.workers.dev/openapi.json

API Endpoints

MethodEndpointDescription
POST/mcpMCP JSON-RPC endpoint
GET/healthHealth check
GET/.well-known/mcp-server.jsonMCP Server Card
GET/openapi.jsonOpenAPI 3.1 spec
GET/docsHuman-readable docs
GET/test/enrich?domain=stripe.comTest endpoint (auth required)

Example Response

For stripe.com:

json
{  "companyName": "Stripe, Inc.",  "industry": "Fintech",  "employeeCount": "5000+",  "revenue": "$1B+",  "technologies": [    "React",    "Ruby on Rails",    "PostgreSQL",    "Redis",    "Kubernetes",    "AWS"  ],  "intentSignals": [    "Recently hired 3 Sales VPs in Q2 2026",    "Expanding EU operations with new Dublin office"  ],  "confidenceScore": 0.95,  "enrichedAt": "2026-06-19T12:00:00.000Z",  "insights": [    "High buying intent: Recently hired multiple sales VPs indicating expansion phase",    "Enterprise-grade requirements suggest need for robust security and compliance features",    "European expansion signals potential need for multi-currency and regional compliance"  ]}

The enrich_lead Tool

When to Use

  • Qualify a lead before outreach
  • Research a company before a sales call
  • Enrich a list of companies for a campaign
  • Understand a prospect's technology stack
  • Detect buying intent signals

Input

ParameterTypeRequiredDescription
domainstringYesCompany domain (e.g., "stripe.com")
attributesstring[]NoData types: firmographic, technographic, intent, contacts
requiredFieldsstring[]NoFields that must be present

Error Handling

All errors follow RFC 9457 Problem Details format:

json
{  "type": "https://api.lead-enrichment-mcp.com/errors/rate-limit-exceeded",  "title": "Rate Limit Exceeded",  "detail": "You have exceeded the rate limit...",  "status": 429,  "extensions": {    "code": "RATE_LIMIT_EXCEEDED",    "retry_after": 60  }}

Rate Limits

TierBurstSustained
Free10 req/sec5 req/sec
Pro50 req/sec20 req/sec

Development

bash
# Install dependenciesnpm install
# Start local dev servernpm run dev
# Deploynpm run deploy

Tech Stack

  • Hono (TypeScript) - Fast, lightweight web framework
  • Cloudflare Workers - Edge runtime
  • Zod - Schema validation with .describe() annotations
  • MCP SDK - Model Context Protocol
  • Stripe - Metered billing

License

MIT

Source: README.md at commit beab1ec

Tools

1

enrich_lead

Enrich Company Profile

Enrich a B2B company profile with structured firmographic, technographic, intent, and contact data. This tool should be called when an AI agent needs to gather detailed information about a company before crafting a personalized outreach, generating a lead score, or making a sales recommendation.

ParametersdomainrequiredattributesrequiredFields

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.