# Builder.ai

**Canonical:** https://apis.io/providers/builderai/  
**Website:** https://www.builder.ai/  
**APIs profiled:** 0

Builder.ai was a London-based AI-assisted software development platform, originally founded in 2016 as Engineer.ai by Sachin Dev Duggal, that let customers assemble custom web and mobile applications from reusable building blocks orchestrated by an AI assistant branded "Natasha." Positioned as a no-code/low-code "human-assisted AI" app factory, it raised large rounds from investors including Insight Partners, Microsoft, the Qatar Investment Authority and SoftBank's DeepCore. The company collapsed into insolvency and entered administration in 2025 amid a revenue-restatement controversy, and its public web and developer surfaces are no longer operational. This profile is retained in the API Evangelist network as a portfolio-lead record; no live API, developer portal, or documentation could be verified during enrichment.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (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 | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Builderai Domain Security** — DMARC

## Tags

Company, Artificial Intelligence, Application Development, No-Code, Low-Code, App Builder, Software Development, Defunct

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