# SpecFlow

**Canonical:** https://apis.io/providers/specflow/  
**APIs profiled:** 2

SpecFlow was an open-source BDD (Behavior-Driven Development) testing framework for .NET that allowed teams to write executable specifications in natural language using the Gherkin syntax. Originally developed by TechTalk, it was acquired by Tricentis in 2020 and reached end-of-life on December 31, 2024. The community continuation is Reqnroll, a fork maintaining full backward compatibility.

## Kin Score — 17.0 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 17.0).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 10.7 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| 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 |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **SpecFlow** — SpecFlow is a BDD framework for .NET that bridges the communication gap between domain experts and developers by enabling natural language specifications (Gherkin) to be execute...
- **Reqnroll** — Reqnroll is the open-source community continuation and fork of SpecFlow, maintaining full backward compatibility while supporting .NET 8.0 and .NET 9.0. Created in 2024 after Tr...

## Security (1)

- **Specflow Domain Security** — TLSv1.3

## Plans (1)

- **Specflow Plans Pricing**

## Tags

.NET, BDD, Cucumber, Gherkin, Testing

---

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