# Rockmelt

**Canonical:** https://apis.io/providers/rockmelt/  
**APIs profiled:** 0

Rockmelt was a Chromium-based social web browser startup founded in 2008 and backed by Andreessen Horowitz (a16z), designed to integrate Facebook, Twitter, and web feeds directly into the browser chrome. The company was acquired by Yahoo in August 2013 and its products were discontinued shortly after. It was surfaced as an a16z portfolio company and added to the API Evangelist network as a stub. Enrichment confirms the company is defunct with no live web, developer, or API surface.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-21 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).

## Tags

Company, Web Browser, Social, Defunct, Acquired

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