# Crescendo Lab

**Canonical:** https://apis.io/providers/crescendo-lab/  
**Website:** https://cresclab.com  
**APIs profiled:** 1

Crescendo Lab is a Taiwan-based, Asia-leading AI omnichannel customer communication software company (cresclab.com) serving 800+ global brands, and a LINE Biz-Solutions Gold Partner. Its platform spans MAAC (AI marketing automation), CAAC (conversational applications), and DAAC (data intelligence) across LINE, WhatsApp, SMS, email, and social channels. Its developer-facing surface is MAAC Go (sms.cresclab.com) — a self-serve, NCC-compliant Taiwan SMS API with a published OpenAPI spec, first-party Node/Python SDKs, a CLI, an official MCP server, and delivery webhooks. Surfaced as a 500 Global portfolio company and enriched into the API Evangelist network.

## Kin Score — 58.5 / 100 (strong)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (-0.5 from 59.0).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 56.4 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 80.4 |
| Commercial Clarity | 76.3 |
| Access Clarity | 76.3 |

Regulatory layer — **Telecommunications**: 34.7 (matched via tags).

## Agent readiness — 38.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | documented |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | derived |
| 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 |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (5)

- **Crescendo Lab Broadcast API** — Bulk (1-to-many) SMS. Small batches dispatch inline; >30 recipients queue asynchronously.
- **Crescendo Lab Contacts API** — Address book with NCC-consent tracking.
- **Crescendo Lab SMS API** — Transactional (1-to-1) SMS send + status.
- **Crescendo Lab Teams API** — Cost-attribution teams. Tag sends with a team to see which team sent/spent how much (shared wallet — reporting only, not a wallet split).
- **Crescendo Lab MAAC Go API** — The MAAC Go API API from Crescendo Lab — 0 operation(s) for maac go api.

## MCP servers (1)

- **MAAC Go MCP** — Official hosted + local MCP server for MAAC Go (Crescendo Lab's self-serve Taiwan SMS platform). Lets Claude / Cursor / Windsurf / Codex send SMS, run broadcasts, pull logs, and...

## Security (2)

- **Crescendo Lab Authentication** — http · 1 scheme
- **Crescendo Lab Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Crescendo Lab Plans Pricing**

## Tags

Company, SMS, Messaging, Marketing Automation, Customer Engagement, Taiwan, Omnichannel, MCP

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