stripe-expert

stripe-expert is an agent for Claude Code from 0xfurai/claude-code-subagents. It costs 25 tokens per session (393 once invoked), scanned A, original, MIT.

A guide to Stripe, a service and API for accepting payments and managing subscriptions and billing.

In plain words
What is it for?
Use it to build checkout and subscription flows, process payments, handle webhooks, support multiple currencies, manage Stripe Connect payments, detect fraud, and track transactions.
Why use it?
It helps prevent payment failures, duplicate processing, insecure key handling, webhook mistakes, and problems with refunds or recurring charges.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/0xfurai/claude-code-subagents/stripe-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for stripe-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/stripe-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/stripe-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/stripe-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/stripe-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 393 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.00393
Opus 5 $0.00013 $0.00197
Sonnet 5 $0.00005 $0.00079
Haiku 4.5 $0.00003 $0.00039

Measured 3d ago against content hash f37374e5be4d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

stripe-expert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/stripe-expert.md · 59 lines

What it actually says

Focus Areas

  • Stripe API integration
  • Payment processing and workflows
  • Subscription management and billing
  • Webhooks and event handling
  • Security compliance with PCI DSS
  • Stripe Connect for multi-party payments
  • Fraud prevention and dispute handling
  • Optimizing checkout experiences
  • Reporting and analytics within Stripe
  • Currency and localization support

Approach

  • Ensure secure API key management
  • Use webhooks to handle asynchronous events
  • Implement retries for idempotency
  • Leverage Stripe's client libraries for language-specific support
  • Validate input data before processing payments
  • Use Stripe's built-in fraud detection tools
  • Monitor account limits and quotas
  • Optimize subscription and invoicing logic
  • Implement thorough logging for transactions
  • Stay updated with Stripe's latest features and enhancements

Quality Checklist

  • Secure handling of sensitive payment information
  • Test transactions in Stripe's test mode
  • Use Stripe's webhooks for real-time event tracking
  • Monitor for any failed charges or refunds
  • Ensure compliance with tax and regulatory requirements
  • Robust error handling and logging in place
  • Consistent and informative user notifications
  • Use Stripe's metered billing for usage-based pricing models
  • Documentation of all workflows and integration points
  • Regular audits of Stripe account and API usage

Output

  • Optimized code for Stripe API calls
  • Secure and efficient payment processing
  • Detailed implementation guides and documentation
  • Comprehensive test coverage for all Stripe interactions
  • Monitoring and alert setup for Stripe activities
  • Periodic compliance and security reviews
  • Integration with CRM and accounting systems
  • Consistent customer experience across platforms
  • Regular feedback loop with business teams for feature updates
  • Performance metrics and KPIs for Stripe usage effectiveness
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 59 lines · 25 tokens per session scan A f37374e5be4d

Subscribe to this mod's changes

stripe-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (995 stars, last pushed 10mo ago), licensed MIT. It adds 25 tokens to every session and 393 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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