REST API
Simple, predictable v2 endpoints authenticated with an x-api-key header. Search, enrich, validate, and activate from any language.
Developers
The developer toolkit for B2B data
One REST API, typed SDKs for Python and TypeScript, an MCP server for your AI tools, and composable GTM skills for agents. Ship your first workflow in minutes.
WORKFLOW
DEVELOPER TOOLKITLIVEBLITZ API · V2
One API, every surface
Whether you write the code, your team does, or your agent does, BlitzAPI meets you where you build.
Official SDKs
Fully typed Python and TypeScript clients with auto-pagination, automatic retries, and client-side rate limiting built in.
AI-native tooling
An MCP server that puts every BlitzAPI endpoint and the docs inside your AI tools, and Blitz Skills that package entire GTM playbooks for coding agents.
Pick your interface
Python SDK: blitz-api-pySync and async clients over httpx, Pydantic v2 models, typed request filters, and auto-pagination. pip install blitz-api-py, Python 3.10+.TypeScript SDK: blitz-api-jsFetch-based client with Zod-validated types, ESM and CommonJS builds, and retries with backoff. npm install blitz-api-js, Node 20+.MCP ServerAdd https://api.blitz-api.ai/mcp to Claude, Cursor or VS Code and sign in: your AI tool searches and enriches people, companies and jobs, with one tool per endpoint and the docs built in.Blitz SkillsComposable agent playbooks for GTM: scope an ICP, generate a runnable SDK script, and audit the integration before you run at scale.
First call
The same call, three ways
A LinkedIn profile URL in, a verified work email out. Same endpoint, same parameters, same response. You pick the interface, not the API.
curl -X POST https://api.blitz-api.ai/v2/enrichment/email \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"person_linkedin_url":"https://www.linkedin.com/in/example-person"}'from blitz_api import BlitzAPI
client = BlitzAPI() # reads BLITZ_API_KEY
email = client.enrichment.email(
person_linkedin_url="https://www.linkedin.com/in/example-person"
)
if email.found:
print(email.email)import { BlitzAPI } from "blitz-api-js";
const client = new BlitzAPI(); // reads BLITZ_API_KEY
const email = await client.enrichment.email({
person_linkedin_url: "https://www.linkedin.com/in/example-person",
});
if (email.found) console.log(email.email);200 OK
foundemailall_emails[]From key to first result
Get your API key
Sign up, grab your key, and send it in the x-api-key header on every request. Keep it server-side, never in client code.
Install an SDK
pip install blitz-api-py or npm install blitz-api-js. Both read BLITZ_API_KEY from your environment and expose the same namespaces.
Make your first call
Turn a LinkedIn profile URL into a verified work email in a few lines, or run your first people search with typed, autocompleted filters.
Scale it up
Auto-pagination, retries with backoff on 429 and 5xx, and client-side rate limiting keep your batch jobs inside your limits.
AI-native tooling
BlitzAPI inside your AI tools
The BlitzAPI MCP server gives Claude, Cursor or VS Code one tool per API endpoint, the documentation and built-in GTM skills. Ask for data in a chat, or have your assistant write the script that pulls it: same endpoints, same parameters, same responses.
MCP server URL
Plug https://api.blitz-api.ai/mcp into Claude, Cursor, VS Code or any MCP-compatible tool, then sign in with your BlitzAPI account or send your API key.
Fewer hallucinations
Your assistant reads the actual API reference before it calls an endpoint, instead of guessing endpoints and parameter names.
BLITZAPI → YOUR AI TOOLSLIVE
ONE TOOL PER ENDPOINT · DOCS · SKILLS
Where to go next
The endpoints you'll call first.
ProductPeople Search APIFind the right B2B contacts at scale. Search people by company, role, location, seniority, and signals to build cleaner prospecting workflows.
ProductCompany Search APISearch and discover companies by industry, size, location, keywords, and signals. Build markets, identify accounts, and create better prospecting workflows.
ProductEmail Enrichment APIFind verified B2B emails using real signals and catch-all validation. Enrich contacts, improve deliverability, and power outbound workflows at scale.
ProductWaterfall ICP APIFind the best decision makers inside any target company using a prioritized ICP cascade. Identify the right contacts for ABM, outbound, and enrichment.
Frequently asked questions
How do I authenticate?
Every request carries your key in the x-api-key header. The SDKs read it from the BLITZ_API_KEY environment variable. Always call BlitzAPI from your backend, never expose the key in browsers or mobile apps.
Which languages are supported?
The REST API works from any language. Official SDKs cover Python (blitz-api-py, Python 3.10+) and TypeScript/JavaScript (blitz-api-js, Node 20+ or any runtime with global fetch).
How are rate limits handled?
Your plan sets the rate, per endpoint: 10 requests per second on Start, 25 on Scale, a custom rate on Build Your Infra. Each endpoint has its own budget, so calls to different endpoints run in parallel without competing. Per-endpoint details and headers are listed in the API reference; the SDKs handle retries and backoff for you.
What is the difference between the MCP server and Blitz Skills?
The MCP server connects your AI tool to BlitzAPI itself: one tool per endpoint to search and enrich people, companies and jobs, plus the docs. Blitz Skills package playbooks, scripts, prompts and workflows your agent runs on top of the API. Use the MCP server to pull data from a chat, and Skills to make a workflow repeatable.
Is there a docs-only MCP server?
Yes. https://docs.blitz-api.ai/mcp gives your AI tool the documentation only, with no account and no records used. The main server, https://api.blitz-api.ai/mcp, already includes the docs through its docs tools, so you don't need both.
