# Agent Letter Desk

**Canonical:** https://apis.io/providers/agentletterdesk-com/  
**Website:** https://agentletterdesk.com/  
**APIs profiled:** 1

Agent Letter Desk provides AI-generated letters that are printed and mailed on behalf of users. The service integrates with AI models like Claude, ChatGPT, Grok, and Mistral Vibe, allowing users to compose letters via chat and have them sent via USPS Certified Mail. It offers features such as guided templates, safeguards, and destination options, targeting both US and EU markets. The platform is currently in invite-only beta, with a waitlist for broader access.

## Kin Score — 17.3 / 100 (emerging)

Scored 2026-11-06 under rubric 0.27.0. Trend: flat (-4.7 from 22.0).

| Facet | Score |
|---|---|
| Discoverability | 57.1 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 19.0 |
| Access Clarity | 31.6 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 20.0 (matched via fallback).

## Agent readiness — 21.6 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | verified |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Paid · Requires approval — onboarding: approval, pricing: paid, trial: no (confidence: medium).

## APIs (1)

- **Agent Letter Desk API** — API documentation referenced but no machine-readable spec found.

## Security (3)

- **Agentletterdesk Com Authentication** — 1 scheme
- **Agentletterdesk Com Domain Security** — TLSv1.3 · HSTS · DMARC
- **Agentletterdesk Com Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Agentletterdesk Com Plans Pricing**

## Tags

Artificial Intelligence, Mail, Certified Mail, LetterService, Automation, Company

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/agentletterdesk-com/). Scores are computed from the provider's own public artifacts under a published rubric.