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Agent skill

Apollo Hello World

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Create a minimal working Apollo.io example. An agent skill from jeremylongshore/tons-of-skills-marketplace.

MITAuto-check passedBackend & APIs

Install Apollo Hello World

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill apollo-hello-world -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace apollo-hello-world --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/apollo-hello-world .claude/skills/apollo-hello-world && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
apollo-hello-world
GitHub stars
2.8k
Token cost
~1.5k tokens
SKILL.md length
302 words
Files
1
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Create a minimal working Apollo.io example. An agent skill from jeremylongshore/tons-of-skills-marketplace.

  • Works in 4 steps: Search for People (No Credits Consumed) → Enrich a Single Person (Consumes 1 Credit) → Enrich an Organization (Consumes 1 Credit) → …
  • Starting a new Apollo integration
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 4 more sections
  • Reaches api.apollo.io and linkedin.com; needs APOLLO_API_KEY and API_KEY

What it does

Apollo Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. 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".

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code

It sits in Backend & APIs, covering GraphQL. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Starting a new Apollo integration
  • Testing your setup
  • Learning basic Apollo API patterns
  • With phrases like apollo hello world

Example prompts

  • “apollo hello world”
  • “apollo example”
  • “apollo quick start”
  • “/apollo-hello-world”

Requirements

  • Python 3
  • A credential in APOLLO_API_KEY
  • A credential in API_KEY
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Search for People (No Credits Consumed)
  2. Enrich a Single Person (Consumes 1 Credit)
  3. Enrich an Organization (Consumes 1 Credit)
  4. Python Equivalent

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript and python).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.apollo.io
    • linkedin.com

    Also links to:

    • docs.apollo.io

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • APOLLO_API_KEY
    • API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Apollo Hello World loads about 1.5k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 302 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~74
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 302 words, ~1,525 tokens.

Download SKILL.mdSave it as .claude/skills/apollo-hello-world/SKILL.md (or your agent's skills folder).
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
compatibility
Designed for Claude Code
version
1.13.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, apollo, api, testing

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.

typescript
// 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}`);
  });
  return data;
}

searchPeople().catch(console.error);
Step 2: Enrich a Single Person (Consumes 1 Credit)

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

typescript
// Enrich by email, LinkedIn URL, or name+domain combo
async function enrichPerson() {
  const { data } = await client.post('/people/match', {
    email: 'tim@apollo.io',
    // 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)
typescript
// 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
python
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

Examples

Start with the free people search against an organization you are authorized to research and confirm the credentials, response shape, and pagination without requesting contact details. For the first credit-consuming check, use a public organization domain and set a one-credit test budget; retain only the returned company-level fields needed to verify the integration. Do not use a real person’s email as a tutorial fixture or print a response containing personal contact data. If authentication fails, the response is empty, or the budget guard is unavailable, stop before enrichment and correct the configuration.

Error Handling

ErrorCauseSolution
401 UnauthorizedMissing or invalid x-api-key headerCheck APOLLO_API_KEY env var
422 UnprocessableMalformed request bodyVerify JSON payload structure
429 Rate LimitedExceeded requests/minuteWait and retry with exponential backoff
Empty people arrayNo matches for filtersBroaden titles/seniority or use different domain

Resources

Next Steps

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

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/.curated/apollo-hello-world of jeremylongshore/tons-of-skills-marketplace.

Open the folder on GitHubat commit cfae287

Compare with similar skills

Apollo Hello World next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Apollo Hello World compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Apollo Hello World this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.5kAutomated safety check: PassMIT
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API DesignerJeffallan/claude-skills12k1 repos~2kAutomated safety check: PassMIT
GraphQL Operations with CodegenChrisWiles/claude-code-showcase6.1k3 repos~1.5kAutomated safety check: PassNone
Supabasecurvenote/curvenote1705 repos~2.2kAutomated safety check: PassCustom licence
API Design Principlesjh941213/my-cc-harness12518 repos~3.4kAutomated safety check: PassNone

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Categories

Questions about Apollo Hello World

What does Apollo Hello World do?

Create a minimal working Apollo.io example. An agent skill from jeremylongshore/tons-of-skills-marketplace. Apollo Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace.io example.

When should I use Apollo Hello World?

Apollo Hello World fits situations like: starting a new Apollo integration; testing your setup; learning basic Apollo API patterns; with phrases like apollo hello world.

How do I install Apollo Hello World in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill apollo-hello-world -a claude-code`. Or copy the skill folder (skills/.curated/apollo-hello-world in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/apollo-hello-world in your project. Claude Code loads it when a task matches its description.

How do I install Apollo Hello World in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill apollo-hello-world -a codex`. Or copy the skill folder (skills/.curated/apollo-hello-world in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/apollo-hello-world in your project. Codex loads it when a task matches its description.

Can I use Apollo Hello World in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill apollo-hello-world -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/apollo-hello-world, .gemini/skills/apollo-hello-world, .github/skills/apollo-hello-world and .opencode/skills/apollo-hello-world in your project.

What does Apollo Hello World need to run?

Going by SKILL.md and its folder, Apollo Hello World needs credentials named APOLLO_API_KEY and API_KEY. Our summary lists: Python 3; A credential in APOLLO_API_KEY; A credential in API_KEY. Its frontmatter pre-approves these tools: Read, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.

Does Apollo Hello World access the network?

SKILL.md names 3 domains. In commands or code: api.apollo.io and linkedin.com; the agent is likely to contact these when it follows the instructions. As links in the text: docs.apollo.io. This is read from the text; nothing was executed.

Is Apollo Hello World safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Apollo Hello World use?

Apollo Hello World is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Apollo Hello World use?

About 1.5k tokens (SKILL.md is roughly 6.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Apollo Hello World?

Skills that share tags, products or a category with Apollo Hello World: Nodejs Backend Patterns (ever-works/ever-works, 162 stars), API Designer (Jeffallan/claude-skills, 12k stars), GraphQL Operations with Codegen (ChrisWiles/claude-code-showcase, 6.1k stars) and Supabase (curvenote/curvenote, 170 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Apollo Hello World?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.