# Credits & Subscription - SMB Sales Boost API

Starter, Growth, and Scale plans use a credit-based system where each lead queried or exported costs 1 credit. Use these endpoints to purchase additional permanent credits or manage your subscription.

**Credit balance:** Your current credit balance is always available via `GET /api/v1/me` \- see the monthlyCredits, monthlyCreditsRemaining, permanentCredits, and totalCreditsRemaining fields.

### Endpoints

`POST /api/v1/purchase-credits`

Purchase additional permanent credits using your saved payment method (charged off-session via Stripe). Minimum 100 credits. Pricing: Starter 10¢/credit, Growth 7.5¢/credit, Scale 5¢/credit. Only available for Starter, Growth, and Scale plans.

`POST /api/v1/subscription/cancel`

Cancel your subscription at the end of the current billing period. Your access continues until the period ends.

### Purchase Credits Parameters

creditCount (required, integer) - Number of credits to purchase (minimum 100).

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### API Documentation Sections

[Introduction](/docs/api/introduction) | [Programmatic Purchase](/docs/api/programmatic-purchase) | [Authentication](/docs/api/authentication) | [Rate Limits](/docs/api/rate-limits) | [User Profile](/docs/api/user-profile) | [Leads](/docs/api/leads) | [Filter Presets](/docs/api/filter-presets) | [Keyword Lists](/docs/api/keyword-lists) | [Email Schedules](/docs/api/email-schedules) | [Export Formats](/docs/api/export-formats) | [Export History](/docs/api/export-history) | [Account Settings](/docs/api/account-settings) | [AI Features](/docs/api/ai-features) | [Export Blacklist](/docs/api/export-blacklist) | [Error Handling](/docs/api/error-handling) | **Credits & Subscription** | [MCP Server](/docs/api/mcp-server) | [Integrations](/docs/api/integrations)

[View Full API Documentation](/docs/api)

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