| What it does | One API key for every AI model with unified billing and schema-first integration
| API for sending handwritten letters through AI agents and assistants
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| DE
|
|---|
| Pricing model | Not given
| Not given
|
|---|
| Pricing | Pay-as-you-go token-based billing. Video models from $0.0096/second to $2.52/video. LLM models from $0.05/1M input tokens. Audio and image models vary by capability. No subscriptions, no minimums, credits never expire. Failed generations not charged.
| Not given
|
|---|
| Key features | - Single API key for 250+ models across all providers
- Pay-as-you-go billing with no subscriptions or minimums
- Schema-first SDKs for six languages
- Real-time pricing transparency
- Per-project API keys for team access control
- Automatic task polling and webhook support
- Agent integration with OpenClaw and Hermes
- Usage analytics and spending controls
- Credits that never expire
| - Agent policy configuration with send limits and approval settings
- Relationship management with contact details restricted from API
- Moment tracking for birthdays and anniversaries
- Letter quote and pricing with customizable upgrades
- Real-time send tracking with multiple status states
- Address request generation with privacy protection
- Webhook event system with signature verification
- OAuth support for custom connectors like Claude
|
|---|
| What makes it different | - One authentication method unlocks the entire catalog across all AI model providers with no separate credentials to manage
- Transparent per-call pricing billed monthly with no hidden markups and failed requests not charged
- Pre-built typed schemas and constraints delivered through model skills for agent code generation
- Unified billing across all modalities and providers in a single monthly invoice
- Integrates natively into Claude Code, Cursor, and other developer agent environments
| - Same API primitives used in the app itself
- Hands-on compliance with frequency limits and approval workflows
- Model Context Protocol integration for AI assistants
- Hosted MCP server with no installation required
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 35 ● no change since last check | Not checked yet ● no change since last check |
|---|
| Trust Flow (Majestic) | 7 | 0 |
|---|
| Citation Flow (Majestic) | 37 | 0 |
|---|
| Referring domains (Majestic) | 125 | 0 |
|---|
RunAPI
Maison Cartouche