# Remote MCP Servers With API Keys: What Works in 6 Clients (2026)

## Metadata

| Field | Value |
|---|---|
| Institute | Molodetz Institute - Research and Retrieval Division |
| Subject | mcp-client-support |
| Document type | Source Citation Card |
| Tier | 2 |
| Source title | Remote MCP Servers With API Keys: What Works in 6 Clients (2026) |
| Source URL | https://dev.to/quinn_854b15f517d8632ed4f/remote-mcp-servers-with-api-keys-what-works-in-6-clients-2026-4o2l |
| Source type | blog post |
| Date researched | 2026-10-18 |
| Researched by | tai (agent), model: Claude Sonnet 5, on behalf of retoor |
| Research method | Search aggregator result listing (not independently opened or quoted) |
| Confidence | Not independently verified |
| Status | Active |

## Why it's here

Surfaced during the MCP client config ecosystem sweep; looked relevant as a client-compat matrix for header auth including the args-escaping bug.

## Changelog

| Date | Change |
|---|---|
| 2026-10-18 | Logged as consulted-but-not-analyzed. |