# Tucows

**Canonical:** https://apis.io/providers/tucows/  
**Website:** https://tucows.com  
**APIs profiled:** 2

Tucows is one of the world's largest internet-services and domain companies. Its OpenSRS division runs a wholesale reseller platform for domain-name registration, DNS, TLS/SSL certificates and hosted email, exposed through the OpenSRS API (an XML-over-HTTPS reseller protocol) and the OpenSRS Mail API (OMA). Tucows also operates Wavelo, a telecom BSS/OSS billing, provisioning and subscriber-management platform for communication service providers, and the Ting Internet fiber business. This profile captures the public OpenSRS developer surface — the domains/SSL API, the email provisioning API, authentication, error codes, sandbox, events and lifecycle. Tucows is a Union Square Ventures portfolio company.

## Kin Score — 40.1 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 40.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 45.1 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 49.4 |
| Commercial Clarity | 38.2 |
| Access Clarity | 38.2 |

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

## Agent readiness — 33.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

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

## APIs (2)

- **OpenSRS Domains and TLS/SSL API** — Wholesale reseller API for domain-name lookup, registration, transfer, renewal, DNS-zone management and TLS/SSL certificate ordering. An XML-over-HTTPS POST protocol authenticat...
- **OpenSRS Email API (OMA)** — The OpenSRS Mail API is the provisioning interface for the OpenSRS hosted email system — create, modify and delete mailboxes, aliases, domains and other aspects of the service. ...

## MCP servers (1)

- **Tucows MCP Server**

## Security (2)

- **Tucows Authentication** — apiKey/signature · 2 schemes
- **Tucows Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Infrastructure, Domains, DNS, SSL, Email, Registrar, Telecom

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