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.
npx skills add airwallex/airwallex-marketplace --skill airwallex-billing-checkoutgit clone --depth 1 https://github.com/airwallex/airwallex-marketplaceWrote 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.
[](https://agentmods.dev/skills/airwallex/airwallex-marketplace/airwallex-billing-checkout)<a href="https://agentmods.dev/skills/airwallex/airwallex-marketplace/airwallex-billing-checkout"><img src="https://agentmods.dev/badge/skills/airwallex/airwallex-marketplace/airwallex-billing-checkout/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/airwallex/airwallex-marketplace/airwallex-billing-checkout"><img src="https://agentmods.dev/badge/skills/airwallex/airwallex-marketplace/airwallex-billing-checkout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00130 | $0.05040 |
| Opus 5 | $0.00065 | $0.02520 |
| Sonnet 5 | $0.00026 | $0.01008 |
| Haiku 4.5 | $0.00013 | $0.00504 |
Grade B, and why
airwallex-billing-checkout scanned grade B with 2 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 13d 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
const resp = await fetch( 'https://api-demo.airwallex.com/api/v1/billing_checkouts/create', { method: 'POST', Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
> These `curl` snippets use `AIRWALLEX_X_API_VERSION` (same as `.env`). Export it before running (`export AIRWALLEX_X_API_VERSION=...`) or load `.env` with your tooling; the value must satisfy [api-reference.md §2](refer How it starts
The opening of the file, as written. The whole thing — 373 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Airwallex Billing Hosted Checkout
1. Description
This skill guides end-to-end integration of Airwallex Billing Hosted Checkout.
Canonical source: the API steps below distill Hosted Billing Checkout and the related Billing docs. Full mapping in references/api-reference.md. Those pages are authoritative. Prefer them if anything here drifts.
How it differs from HPP (Hosted Payment Page):
| Dimension | HPP (Online Payments) | Billing Hosted Checkout |
|---|---|---|
| Core API | PaymentIntent + redirectToCheckout() |
billing_checkouts/create → returns url |
| Typical use case | One-off payments | Subscriptions / recurring billing / one-off invoices / card-only setup |
| Auto-created resources | None | Customer, Payment Source, Subscription |
Checkout Modes: SUBSCRIPTION · PAYMENT (one-off) · SETUP (card-saving only, requires x-api-version >= 2025-08-29)
2. Trigger
- Mentions "subscription", "recurring billing", "subscription integration"
- Mentions
billing_checkouts, "hosted billing checkout", "billing checkout" - Asks about Product/Price creation, pricing models, free trial, Coupon/discount
- Asks about
subscription.active,subscription.cancelled, or other Billing Webhooks
3. Core Principles
-
Language: Detect the user's language. Code, API fields, and enum values stay in English; explanations and comments localized.
-
Interaction first: When intent is unclear, ask questions per §4 before outputting content; never dump all sections at once
-
Output strategy: Only output sections relevant to the user's needs; use "conclusion → steps" structure
-
Security: Use
<PLACEHOLDER>for sensitive values in code examples -
Environments: Demo =
api-demo.airwallex.com, Production =api.airwallex.com -
API versioning: Minimum
x-api-versionper capability and the current latest are in api-reference.md §2. SetAIRWALLEX_X_API_VERSIONin.env(template api-reference.md §1.1); examples below read that value and do not hardcode a date, so nobody assumes one fixed version is mandatory. If you rely on the account default and omit the header, confirm the default meets the §2 minimums for what you use.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 13d ago First seen · 373 lines · 130 tokens per session scan B e4bcced72b37
airwallex-billing-checkout is a skill published in the GitHub repository airwallex/airwallex-marketplace (5 stars, last pushed yesterday), licensed Apache-2.0. It adds 130 tokens to every session and 5,040 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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