Agent skill

Payment Gateway Integration

Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance.

Install Payment Gateway Integration

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a claude-code

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

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration --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/secondsky/claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .claude/skills/payment-gateway-integration && 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/

Paste into Claude Code

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .claude/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/secondsky/claude-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .agents/skills/payment-gateway-integration && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .agents/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/secondsky/claude-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .cursor/skills/payment-gateway-integration && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .cursor/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/secondsky/claude-skills.git --path plugins/payment-gateway-integration/skills/payment-gateway-integration

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/secondsky/claude-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .gemini/skills/payment-gateway-integration && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .gemini/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/secondsky/claude-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .github/skills/payment-gateway-integration && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .github/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add secondsky/claude-skills --skill payment-gateway-integration -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install secondsky/claude-skills payment-gateway-integration --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/secondsky/claude-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/payment-gateway-integration/skills/payment-gateway-integration .opencode/skills/payment-gateway-integration && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "payment-gateway-integration" agent skill from https://github.com/secondsky/claude-skills/tree/main/plugins/payment-gateway-integration/skills/payment-gateway-integration into .opencode/skills/payment-gateway-integration/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "payment-gateway-integration", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: payment-gateway-integration
GitHub stars: 227
Token cost: ~722 tokens
SKILL.md length: 132 words
Files: 2 (incl. references)
Skills in repo: 169
Repo updated: Sep 28, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance.

Implementing checkout flows
SKILL.md covers Stripe Integration (Node.js), Webhook Handling, PayPal Integration and Security Checklist, plus 1 more section
Needs STRIPE_SECRET_KEY and STRIPE_WEBHOOK_SECRET
Recurring billing

What it does

Payment Gateway Integration is an agent skill from secondsky/claude-skills. Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance. Use when implementing checkout flows, recurring billing, or handling refunds and disputes.

Its SKILL.md is about 720 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/paypal-integration.md`).

It sits in Backend & APIs, covering Webhooks. It works with PayPal and Stripe. The repository describes itself as: Production-ready skills for Claude Code CLI - Cloudflare, React, Tailwind v4, and AI integrations. The licence is MIT.

When your agent uses it

Implementing checkout flows
Recurring billing
Handling refunds and disputes

Example prompts

“Use the payment-gateway-integration skill to integrate payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI…”
“/payment-gateway-integration”

Requirements

Node.js
A credential in STRIPE_SECRET_KEY
A credential in STRIPE_WEBHOOK_SECRET

What it can do on your machine

Read from SKILL.md and the folder at commit 8837836. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
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 javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- STRIPE_SECRET_KEY
- STRIPE_WEBHOOK_SECRET
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Payment Gateway Integration loads about 722 tokens when it runs, and up to ~2.5k if it reads all its reference files. Until then it costs about 59 tokens; SKILL.md has 132 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~59
When it runs · the whole SKILL.md, loaded when a task matches: ~722
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.5k

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 secondsky/claude-skills at commit 8837836, republished under its MIT licence (© secondsky). 132 words, ~722 tokens.

Download SKILL.mdSave it as .claude/skills/payment-gateway-integration/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: payment-gateway-integration
description: Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance. Use when implementing checkout flows, recurring billing, or handling refunds and disputes.
license: MIT

Payment Gateway Integration

Integrate secure payment processing with proper error handling and compliance.

Stripe Integration (Node.js)

javascript

const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);

class PaymentService {
  async createPaymentIntent(amount, currency, customerId) {
    return stripe.paymentIntents.create({
      amount: Math.round(amount * 100), // Convert to cents
      currency,
      customer: customerId,
      automatic_payment_methods: { enabled: true }
    });
  }

  async createSubscription(customerId, priceId) {
    return stripe.subscriptions.create({
      customer: customerId,
      items: [{ price: priceId }],
      payment_behavior: 'default_incomplete',
      expand: ['latest_invoice.payment_intent']
    });
  }

  async refund(paymentIntentId, amount = null) {
    const params = { payment_intent: paymentIntentId };
    if (amount) params.amount = Math.round(amount * 100);
    return stripe.refunds.create(params);
  }
}

Webhook Handling

javascript

app.post('/webhooks/stripe', express.raw({ type: 'application/json' }), (req, res) => {
  const sig = req.headers['stripe-signature'];

  let event;
  try {
    event = stripe.webhooks.constructEvent(req.body, sig, process.env.STRIPE_WEBHOOK_SECRET);
  } catch (err) {
    return res.status(400).send(`Webhook Error: ${err.message}`);
  }

  switch (event.type) {
    case 'payment_intent.succeeded':
      await handlePaymentSuccess(event.data.object);
      break;
    case 'invoice.payment_failed':
      await handlePaymentFailed(event.data.object);
      break;
  }

  res.json({ received: true });
});

PayPal Integration

See references/paypal-integration.md for complete PayPal implementation with:

Order creation and capture
Refund processing
Webhook handling
Frontend SDK integration
Success/cancel callbacks

Security Checklist

Use official SDK only
Verify webhook signatures
Never log full card numbers
Store minimal payment data
Test in sandbox first
HTTPS for all payment routes
Handle all error cases
Use idempotency keys
Implement retry logic

Best Practices

Do:

Use official SDK libraries
Verify all webhook signatures
Log transaction IDs (not card data)
Test in sandbox environment
Handle all payment states
Implement proper error messages

Don't:

Process raw card data directly
Store sensitive payment info
Hardcode API keys
Skip webhook signature validation
Ignore failed payment events
Use test keys in production

Files

SKILL.md and 1 other file (references) in plugins/payment-gateway-integration/skills/payment-gateway-integration of secondsky/claude-skills.

SKILL.md
references/paypal-integration.md

Open the folder on GitHubat commit 8837836

Compare with similar skills

Payment Gateway Integration 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.

Payment Gateway Integration compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Payment Gateway Integration this skillsecondsky/claude-skills	227	—	~722	Automated safety check: Pass	MIT	9 days ago
Payment Integrationaiskillstore/marketplace	430	9 repos	~916	Automated safety check: Pass	None	today
Payment Testingpetrkindlmann/qa-skills	165	—	~4.9k	Automated safety check: Pass	MIT	3 mo ago
Stripe Appsfossasia/eventyay	1.7k	2 repos	~3.6k	Automated safety check: Pass	Apache-2.0	today
Stripe Best Practiceskanchengw/cnllm	175	3 repos	~925	Automated safety check: Pass	Apache-2.0	3 mo ago
Dinero Currency Patternsdinerojs/dinero.js	6.8k	—	~650	Automated safety check: Pass	MIT	2 days ago

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Works with

Questions about Payment Gateway Integration

What does Payment Gateway Integration do?

Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance. Payment Gateway Integration is an agent skill from secondsky/claude-skills. Integrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance.

When should I use Payment Gateway Integration?

Payment Gateway Integration fits situations like: implementing checkout flows; recurring billing; handling refunds and disputes.

How do I install Payment Gateway Integration in Claude Code?

Run `npx skills add secondsky/claude-skills --skill payment-gateway-integration -a claude-code`. Or copy the skill folder (plugins/payment-gateway-integration/skills/payment-gateway-integration in secondsky/claude-skills) into .claude/skills/payment-gateway-integration in your project. Claude Code loads it when a task matches its description.

How do I install Payment Gateway Integration in Codex?

Run `npx skills add secondsky/claude-skills --skill payment-gateway-integration -a codex`. Or copy the skill folder (plugins/payment-gateway-integration/skills/payment-gateway-integration in secondsky/claude-skills) into .agents/skills/payment-gateway-integration in your project. Codex loads it when a task matches its description.

Can I use Payment Gateway Integration 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 secondsky/claude-skills --skill payment-gateway-integration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/payment-gateway-integration, .gemini/skills/payment-gateway-integration, .github/skills/payment-gateway-integration and .opencode/skills/payment-gateway-integration in your project.

What does Payment Gateway Integration need to run?

Going by SKILL.md and its folder, Payment Gateway Integration needs credentials named STRIPE_SECRET_KEY and STRIPE_WEBHOOK_SECRET. Our summary lists: Node.js; A credential in STRIPE_SECRET_KEY; A credential in STRIPE_WEBHOOK_SECRET.

Does Payment Gateway Integration access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Payment Gateway Integration 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 Payment Gateway Integration use?

Payment Gateway Integration 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 Payment Gateway Integration use?

About 722 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.8k tokens, read only when the agent opens those files.

What are the alternatives to Payment Gateway Integration?

Skills that share tags, products or a category with Payment Gateway Integration: Payment Integration (aiskillstore/marketplace, 430 stars), Payment Testing (petrkindlmann/qa-skills, 165 stars), Stripe Apps (fossasia/eventyay, 1.7k stars) and Stripe Best Practices (kanchengw/cnllm, 175 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Payment Gateway Integration?

secondsky (a GitHub user) maintains it in secondsky/claude-skills, which has 227 GitHub stars. The repository holds 169 skills in this directory. The repository was last updated on September 28, 2026.

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

Install Payment Gateway Integration

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Payment Gateway Integration

Stripe Integration (Node.js)

Webhook Handling

PayPal Integration

Security Checklist

Best Practices

Files

Compare with similar skills

Similar skills

More from secondsky/claude-skills

Related

Questions about Payment Gateway Integration