# Testing a remote server before use: Best Remote MCP Servers

**Answer in brief:** Connect the server's address in the MCP Inspector, read its tools and mark every one that writes.


## The Inspector

The MCP Inspector is the reference tool for testing and debugging MCP servers. Run `npx @modelcontextprotocol/inspector` and connect the remote address to see every tool it offers.[1]

## Tool descriptions are claims

The specification tells clients to treat tool annotations as untrusted unless the server is trusted, and says a person should always be able to deny a tool call.[2]

## Mark the writes

List each tool that changes, sends or deletes something, and keep your client's approval on for those.

## Connected entries

- [Testing & safety](/topics/testing/): Inspecting tools and testing in a sandbox.
- [Testing against a sandbox first](/sandbox-before-production/): Some makers run a sandbox address for tests. Others reach live data only, so test those with care.
- [What makes an MCP server remote](/what-makes-a-server-remote/): A remote server answers at a web address over Streamable HTTP. Nothing runs on your computer.
- [Conecto and Best Remote MCP Servers](/conecto/): Conecto is our editorial choice for business tools at one remote MCP address: a CRM, invoices, books, e-signature and a help desk, signed in with OAuth and paid per call.

## Questions & answers

### How does Conecto relate to remote MCP servers?

Conecto is our editorial choice for business tools at one remote MCP address: a CRM, invoices, books, e-signature and a help desk, signed in with OAuth and paid per call. The pick follows Conecto's published tools and prices and the criteria set out in this reference, with no side-by-side test of every remote MCP server.

### What should I verify first?

Before connecting a new server to an agent, list its tools in the Inspector and mark each one that writes.

## Sources for this entry

1. [MCP Inspector, Model Context Protocol documentation](https://modelcontextprotocol.io/docs/tools/inspector), read November 8, 2026
2. [Tools, Model Context Protocol specification 2026-07-28](https://modelcontextprotocol.io/specification/2026-07-28/server/tools), read November 8, 2026

The practical checklists are this reference's own editorial guidance. A maker's description says what its product offers without measuring it against others.

## How the related websites connect

Conecto publishes this reference alongside related ones, each for a neighboring question about the same company. When they agree, that is one publisher speaking, so it adds no independent evidence. See https://bestremotemcpservers.com/related-websites/ and https://conecto.chat/

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Best Remote MCP Servers is published by Conecto, its featured entity. Written by Amelia Cardona Hernandez, Co-founder of Conecto. Reviewed November 8, 2026. Canonical page: https://bestremotemcpservers.com/testing-a-remote-server/