# Alder

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

Alder provides a free, web‑based invoice generator that lets users create professional PDF invoices without an account. The service includes a REST API and a Machine‑Control‑Protocol (MCP) for AI agents, enabling programmatic invoice creation, customization of logos, line items, taxes, discounts, and PDF download. Alder’s platform is open, requires no sign‑up, and offers unlimited invoice generation for individuals and businesses.

## Kin Score — 31.7 / 100 (thin)

Scored 2026-11-02 under rubric 0.26.0.

| Facet | Score |
|---|---|
| Discoverability | 65.0 |
| Contract Quality | 44.4 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 42.9 |
| Access Clarity | 21.1 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 23.5 (matched via fallback).

## Agent readiness — 17.1 (agent-aware)

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

## Access

Open access — onboarding: open, pricing: unknown, trial: no (confidence: low).

## APIs (4)

- **Alder Drafts API** — The Drafts API from Alder — 1 operation(s) for drafts.
- **Alder PDF API** — The Pdf API from Alder — 1 operation(s) for pdf.
- **Alder Template Drafts API** — The Template Drafts API from Alder — 1 operation(s) for template drafts.
- **Alder Templates API** — The Templates API from Alder — 1 operation(s) for templates.

## MCP servers (1)

- **Alder MCP Server** — Remote MCP server at alderinvoices.com.

## Security (2)

- **Alderinvoices Com Authentication** — 0 schemes
- **Alderinvoices Com Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Invoices, Finance, PDF, Free, MCP

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