Tested MCP Servers
Search the MCP servers of the official registry that were connected to and tested.
What it does
Tested MCP Servers is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 9h ago (live check)Hosted endpoint
https://horizontal.one/api/mcpstreamable-http
In Claude Code: claude mcp add --transport http tested-mcp-servers https://horizontal.one/api/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"tested-mcp-servers": {
"url": "https://horizontal.one/api/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 9h agoONLINE Tested MCP Servers answered an MCP connection on 07 Nov 2026 and introduced itself as one.horizontal/services 0.1.0 (MCP protocol 2025-06-18).
2 tools offered to AI assistants
search_services· Find remote MCP servers from the official MCP Registry that Horizontal connected to and tested. Each result says how the test went (works, needs sign in, broken, unreachable), how many tools the server listed, how fast it answered and when,get_service· Everything Horizontal knows about one server: its registry entry, its addresses and what they ask for, its last tests, the tools it listed (names, descriptions, parameters, and whether it marks them read only or destructive), its warnings a
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://horizontal.one/api/mcp | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| Website | https://horizontal.one/services/ | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| Version | 0.1.0 | DECLARED | SRC-001 Official MCP Registry | 8h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 8h ago |
Change history
- NEW07 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is Tested MCP Servers still online?
Free alerts · no account▲ 0Do you run Tested MCP Servers? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
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<a href="https://electraindex.com/mcp/tested-mcp-servers?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/tested-mcp-servers" alt="Listed on Electra Index"></a>Questions about Tested MCP Servers
How do I connect Tested MCP Servers?
Use the hosted endpoint https://horizontal.one/api/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does Tested MCP Servers offer?
When Electra Index connected on 07 Nov 2026, it listed 2 tools: search_services, get_service. The full list is in "Live check" above.
Is Tested MCP Servers online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 9h ago.