NerdyData

Find who's using any tech on the web

MCPAPINative readiness

About

What is NerdyData

NerdyData crawls and fully renders millions of websites — including JavaScript execution — to index source code, identify technology fingerprints, and return lists of domains using any specific SaaS product, HTML pattern, or code snippet. It's built for SDRs, BDRs, marketers, and GTM engineers at mid-market and enterprise companies who need to build prospect lists filtered by actual technology usage rather than self-reported firmographic data. The standout capability is code-level search: you can query for any HTML, JavaScript, CSS, HTTP header, cookie, or XHR URL across the entire index, which lets you reverse-engineer a competitor's customer base by searching for their tracking pixel or script tag. Domain enrichment adds company contact details alongside the tech stack data, reducing the number of tools needed to go from signal to outreach. That said, NerdyData stops at the web layer — it doesn't provide contact-level data like verified emails or phone numbers, so you'll need a separate tool to reach the people behind the domains.

Data & Discovery

Capabilities

Key features

Tech-stack lookup

detects which tools a target company uses

Native team chat integration

first-party connectors, no middleware required

Also ships

Chrome extension, official SDK

No-code automation support

works with major iPaaS platforms

Our verdict

Vanderbuild take

NerdyData is a technographic prospecting database we'd put in front of any GTM engineer or SDR team that needs to build lists from actual website behavior rather than guessed firmographics — it's one of the few tools in the Technology Lookup space that searches at the raw code level, not just a curated tech tag layer. The agentic story here is genuinely strong: NerdyData has native MCP server support, meaning you can wire it directly into an AI agent orchestration layer and have it return technographic signals on demand without any custom middleware. Budget for an experienced operator — the free tier caps at 100 rows per report, and the $200/month Basic plan limits domain enrichment to 1,000 domains per month, so vanilla setup leaves value on the table before you've even stress-tested the data. The honest limitation is that NerdyData surfaces domains and tech stacks, not contacts — you'll still need a separate database for verified emails or phone numbers, which adds cost and a join step to any outbound workflow.

Mateusz Sekta

Founder, vanderbuild

The wedge

Agentic stack profile

MCP server

Yes

Live MCP server — agents can call this tool directly.

Public MCP server that exposes agent tools for searching code and domains and exporting reports. Documented tools include get_suggestions, search_code, search_titles, search_descriptions, create_download, get_download, get_domain, and get_domain_technologies; setup uses a .mcp.json entry invoking 'npx @nerdydata/mcp' and authenticates via an NERDYDATA_API_KEY environment variable.

Open MCP →

API

REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →

Agentic readiness

Native

Built for agents from the ground up.

MCP server + agent-friendly API + at least one autonomous workflow out of the box. The bar for 'Native' is high — only a handful of tools currently qualify.

Stack role

Enricher · Data source

Where this tool slots into an agentic pipeline.

Plays the role of Enricher + Data source in an agentic pipeline. Use it to add firmographic, technographic, and signal data to a lead row on the fly; source contacts, companies, and the raw inputs an agent needs to act.

Compare

NerdyData alternatives

Tools that solve a similar problem — compared at a glance.

NerdyData(this tool)

Pricing: Freemium
Budget: $$$
Best for: SDR / BDR, Marketing

Readiness: Native
MCP: Yes
API: REST

Builtwith

Pricing: Freemium
Budget: $$$
Best for: SDR / BDR, RevOps

Readiness: Native
MCP: Yes
API: REST

Wappalyzer

Pricing: Freemium
Budget: $$$
Best for: SDR / BDR, RevOps

Readiness: Native
MCP: Yes
API: REST

Answers

Frequently asked questions

Does NerdyData have an MCP server?

Yes — NerdyData exposes a Model Context Protocol server. Public MCP server that exposes agent tools for searching code and domains and exporting reports. Documented tools include get_suggestions, search_code, search_titles, search_descriptions, create_download, get_download, get_domain, and get_domain_technologies; setup uses a .mcp.json entry invoking 'npx @nerdydata/mcp' and authenticates via an NERDYDATA_API_KEY environment variable. See the MCP docs at https://www.nerdydata.com/mcp.

Does NerdyData have a public API?

Yes — NerdyData ships a REST API. Docs: https://www.nerdydata.com/api.

How much does NerdyData cost?

NerdyData: pricing is freemium, expect higher tier ($$$) spend. Full pricing page: https://www.nerdydata.com/pricing.

Who is NerdyData best for?

NerdyData is built for SDR / BDR, Marketing, GTM Engineer. Fits Mid-market (50-500), Enterprise-sized teams.

How well does NerdyData fit an agentic sales stack?

Tier: Native. Has both an MCP server and an agent-friendly API — drops into an agentic stack with minimal glue code.

Quick spec

MCP serverYes ↗

APIREST ↗

ReadinessNative

Stack roleEnricher, Data source

Pricing

Freemium

$$$

Vendor pricing →

Ideal customer

Growth stage

Scale-up · Enterprise

Company size

Mid-market (50-500) · Enterprise

Best for

SDR / BDR · Marketing · GTM Engineer