# Active Membranes

**Canonical:** https://apis.io/providers/active-membranes/  
**Website:** https://www.activemembrane.com/  
**APIs profiled:** 1

Active Membranes is a California water-technology company, founded in 2022 out of research at the UCLA Samueli School of Engineering, that builds electrically conductive "electro-active" reverse-osmosis membranes for desalination and water reuse. Where a conventional RO membrane filters passively and is cleaned after it fouls, Active Membranes embeds conductive material in the membrane's polymer matrix and uses a control unit it calls the Active Box to apply a tunable low electrical potential at the membrane surface, electrostatically repelling scale-forming ions and charged organic foulants in real time. The modules ship in the standard 8-inch by 40-inch spiral-wound format so they retrofit into existing pressure vessels, and are aimed at seawater and brackish desalination, produced-water and industrial reuse. The company reports field results including roughly 48% less irreversible fouling in produced-water reuse, up to 70% longer cleaning cycles in brackish water, and a Ventura County study citing about 57% lower cost and 64% less footprint. It has raised roughly $3.24M in seed funding from Natural Ventures, Echo River Capital and Pacifica Water Solutions, won the 2023 Global Water Summit Water Technology Idol award, and was selected as a Qualified Team in the XPRIZE Water Scarcity competition. Active Membranes sells capital equipment, not software: it operates no developer program, publishes no OpenAPI, GraphQL or SDK, and lists no pricing. It does, however, serve two machine-readable surfaces from its own hostname — a substantial hand-written /llms.txt, and a live, unauthenticated Model Context Protocol endpoint at /_api/mcp exposing nine tools over the public site content. Both are Wix platform features the company chose to enable and advertise rather than first-party engineering.

## Kin Score — 13.6 / 100 (emerging)

Scored 2026-09-06 under rubric 0.19.0.

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 8.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| 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 |

## APIs (1)

- **Active Membranes Site MCP Server** — A live, unauthenticated Model Context Protocol endpoint served from Active Membranes' own hostname at https://www.activemembrane.com/_api/mcp and advertised by the company in it...

## MCP servers (1)

- **Active Membranes Site MCP Server** — Active Membranes serves a live, unauthenticated Model Context Protocol endpoint from its own hostname at https://www.activemembrane.com/_api/mcp. It is the Wix Site MCP runtime,...

## Security (2)

- **Active Membranes Authentication** — 2 schemes
- **Active Membranes Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Active Membranes Plans Pricing**

## Tags

Company, Water, Water Technology, Desalination, Reverse Osmosis, Membranes, Cleantech, Sustainability, Industrial, Hardware, MCP, Agents

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