MCPInstall

convex-billing

by convexBackend & APIs

Add Stripe billing/payments to the Convex app via @convex-dev/stripe (checkout + webhook + gating).

Installs
36.2K
Last 24h
+393
Trending rank
#778
Security
Pass

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/convex/agent-skills --skill convex-billing
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads convex-billing automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

Security audits

Independent scans of the skill's instructions and bundled files.

Gen Agent Trust Hub PassSAFE ·The skill provides standard instructions for integrating Stripe billing into a Convex application using the official @convex-dev/stripe component. No security issues were detected.
Socket PassNo alerts
Snyk PassLOW ·Risk: LOW · No issues

SKILL.md

The instructions your agent reads when the skill is triggered.

<!-- GENERATED from convex-agents content/capabilities/billing.json — do not edit by hand. -->

Add billing / payments

Wire Stripe to Convex using @convex-dev/stripe: a checkout action, an httpAction webhook registered by the component (signature-verified automatically), subscription state stored in the component's tables, and server-side gating via a query.

Workflow

  1. Install the component: npm install @convex-dev/stripe.
  2. Create convex/convex.config.ts: 
    import { defineApp } from 'convex/server';
import stripe from '@convex-dev/stripe/convex.config.js';
const app = defineApp();
app.use(stripe);
export default app;
  3. Store Stripe keys in Convex env (use the env micro power): STRIPE_SECRET_KEY (sk_test_… / sk_live_…) and STRIPE_WEBHOOK_SECRET (whsec_…).
  4. Create convex/http.ts to register the webhook route (the component handles signature verification automatically): 
    import { httpRouter } from 'convex/server';
import { components } from './_generated/api';
import { registerRoutes } from '@convex-dev/stripe';
const http = httpRouter();
registerRoutes(http, components.stripe, { webhookPath: '/stripe/webhook' });
export default http;
  5. Create convex/billing.ts with a checkout action and a subscription-gate query: 
    import { action, query } from './_generated/server';
import { components } from './_generated/api';
import { StripeSubscriptions } from '@convex-dev/stripe';
import { v } from 'convex/values';
const stripeClient = new StripeSubscriptions(components.stripe, {});
export const createSubscriptionCheckout = action({
  args: { priceId: v.string() },
  returns: v.object({ sessionId: v.string(), url: v.union(v.string(), v.null()) }),
  handler: async (ctx, args) => {
    const identity = await ctx.auth.getUserIdentity();
    if (!identity) throw new Error('Not authenticated');
    const customer = await stripeClient.getOrCreateCustomer(ctx, { userId: identity.subject, email: identity.email, name: identity.name });
    return await stripeClient.createCheckoutSession(ctx, { priceId: args.priceId, customerId: customer.customerId, mode: 'subscription', successUrl: `${process.env.SITE_URL ?? 'http://localhost:3000'}/?success=true`, cancelUrl: `${process.env.SITE_URL ?? 'http://localhost:3000'}/?canceled=true`, subscriptionMetadata: { userId: identity.subject } });
  },
});
export const isSubscribed = query({
  args: {},
  returns: v.boolean(),
  handler: async (ctx) => {
    const identity = await ctx.auth.getUserIdentity();
    if (!identity) return false;
    const subscriptions = await ctx.runQuery(components.stripe.public.listSubscriptionsByUserId, { userId: identity.subject });
    return subscriptions.some((sub) => sub.status === 'active' || sub.status === 'trialing');
  },
});
  6. Run npx convex dev --once — it will install the component and push the functions. Verify output shows ✔ Installed component stripe.
  7. In Stripe Dashboard → Webhooks: add endpoint https://<deployment>.convex.site/stripe/webhook, subscribe to checkout.session.completed, customer.subscription.*, invoice.*, payment_intent.*. Copy the signing secret as STRIPE_WEBHOOK_SECRET.

Rules

  • Use @convex-dev/stripe (npm: @convex-dev/stripe@^0.1.4) — it handles webhook signature verification internally via registerRoutes; do NOT write a manual constructEvent webhook.
  • Stripe keys live in Convex env (use the env micro power): STRIPE_SECRET_KEY and STRIPE_WEBHOOK_SECRET.
  • Gate on server-stored subscription state via isSubscribed query (reads component tables), not client claims.
  • convex/convex.config.ts must import from '@convex-dev/stripe/convex.config.js' (not .ts) — the .js extension is required by the Convex bundler.

FAQ

What does the convex-billing skill do?

Add Stripe billing/payments to the Convex app via @convex-dev/stripe (checkout + webhook + gating).

How do I install convex-billing?

Run npx skills add https://github.com/convex/agent-skills --skill convex-billing in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/convex-billing/ (personal) or .claude/skills/convex-billing/ (project).

Which AI agents can use convex-billing?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is convex-billing safe to install?

Security partners have reviewed it: Gen Agent Trust Hub passed; Socket passed; Snyk passed. As with any skill, read the SKILL.md and bundled scripts before installing.

Who maintains convex-billing?

It is published by convex in convex/agent-skills. It has 36,210 recorded installs.

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