apollo-hello-world

name	apollo-hello-world
description	Create a minimal working Apollo.io example. Use when starting a new Apollo integration, testing your setup, or learning basic Apollo API patterns. Trigger with phrases like "apollo hello world", "apollo example", "apollo quick start", "simple apollo code", "test apollo api".
allowed-tools	Read, Write, Edit
version	1.13.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","apollo","api","testing"]
compatibility	Designed for Claude Code

Apollo Hello World

Overview

Minimal working example demonstrating the three core Apollo.io API operations: people search, person enrichment, and organization enrichment. Uses the correct x-api-key header and api.apollo.io/api/v1/ base URL.

Prerequisites

• Completed apollo-install-auth setup
• Valid API key configured in APOLLO_API_KEY environment variable

Instructions

Step 1: Search for People (No Credits Consumed)

The People API Search endpoint finds contacts in Apollo's 275M+ database. This endpoint is free — it does not consume enrichment credits, but it also does not return emails or phone numbers.

// hello-apollo.ts
import axios from 'axios';

const client = axios.create({
  baseURL: 'https://api.apollo.io/api/v1',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': process.env.APOLLO_API_KEY!,
  },
});

// People Search — POST /mixed_people/api_search
async function searchPeople() {
  const { data } = await client.post('/mixed_people/api_search', {
    q_organization_domains_list: ['apollo.io'],
    person_titles: ['engineer'],
    person_seniorities: ['senior', 'manager'],
    page: 1,
    per_page: 10,
  });

  console.log(`Found ${data.pagination.total_entries} contacts`);
  data.people.forEach((person: any) => {
    console.log(`  ${person.name} — ${person.title} at ${person.organization?.name}`);
  });
   data;
}

().(.);

Step 2: Enrich a Single Person (Consumes 1 Credit)

The People Enrichment endpoint returns full contact details including email and phone.

// Enrich by email, LinkedIn URL, or name+domain combo
async function enrichPerson() {
  const { data } = await client.post('/people/match', {
    email: '[e-mail]',
    // Alternative identifiers:
    // linkedin_url: 'https://www.linkedin.com/in/...',
    // first_name: 'Tim', last_name: 'Zheng', organization_domain: 'apollo.io',
    reveal_personal_emails: false,
    reveal_phone_number: false,
  });

  if (!data.person) {
    console.log('No match found');
    return;
  }

  const p = data.person;
  console.log(`Name:     ${p.name}`);
  console.log(`Title:    ${p.title}`);
  console.log(`Email:    ${p.email}`);
  console.log(`Company:  ${p.organization?.name}`);
  console.log(`LinkedIn: ${p.linkedin_url}`);
}

Step 3: Enrich an Organization (Consumes 1 Credit)

// Organization Enrichment — GET /organizations/enrich
async function enrichOrg() {
  const { data } = await client.get('/organizations/enrich', {
    params: { domain: 'apollo.io' },
  });

  const org = data.organization;
  if (!org) { console.log('No org found'); return; }

  console.log(`Company:    ${org.name}`);
  console.log(`Industry:   ${org.industry}`);
  console.log(`Employees:  ${org.estimated_num_employees}`);
  console.log(`Revenue:    ${org.annual_revenue_printed}`);
  console.log(`HQ:         ${org.city}, ${org.state}, ${org.country}`);
  console.log(`Tech Stack: ${org.current_technologies?.slice(0, 5).map((t: any) => t.name).join(', ')}`);
}

Step 4: Python Equivalent

import os, requests

API_KEY = os.environ['APOLLO_API_KEY']
BASE = 'https://api.apollo.io/api/v1'
HEADERS = {'Content-Type': 'application/json', 'x-api-key': API_KEY}

# People search (free)
resp = requests.post(f'{BASE}/mixed_people/api_search', headers=HEADERS, json={
    'q_organization_domains_list': ['apollo.io'],
    'person_titles': ['engineer'],
    'page': 1, 'per_page': 5,
})
for p in resp.json().get('people', []):
    print(f"  {p['name']} — {p.get('title', 'N/A')}")

# Org enrichment (1 credit)
resp = requests.get(f'{BASE}/organizations/enrich',
    headers=HEADERS, params={'domain': 'apollo.io'})
org = resp.json().get('organization', {})
print(f"Company: {org.get('name')} ({org.get('estimated_num_employees')} employees)")

Output

• People search results (name, title, company — no emails)
• Enriched person with email, phone, LinkedIn URL
• Enriched organization with industry, headcount, revenue, tech stack

Error Handling

Error	Cause	Solution
401 Unauthorized	Missing or invalid x-api-key header	Check APOLLO_API_KEY env var
422 Unprocessable	Malformed request body	Verify JSON payload structure
429 Rate Limited	Exceeded requests/minute	Wait and retry with exponential backoff
Empty people array	No matches for filters	Broaden titles/seniority or use different domain

Resources

• People API Search
• People Enrichment
• Organization Enrichment
• Find People Using Filters

Next Steps

Proceed to apollo-local-dev-loop for development workflow setup.