# Servers that move money, files or messages: Top MCP Servers

**Answer in brief:** Reading carries little risk. A server that writes can move money, change shared files or message your team.


## Payments

Stripe's server signs in with OAuth or an agent API key. From December 2026 it stops accepting full-access secret keys, so move to agent API keys or OAuth by November 30, 2026.[1]

## Designs and messages

Figma's server can write native content to Figma Design, FigJam and Figma Slides.[2] Slack's server can send messages.[3]

## A person can say no

The MCP specification says a person should always be able to deny a tool call.[4] Keep approval on for every tool that pays, posts or edits shared work.

## Connected entries

- [Access & safety](/topics/security/): Sign-in, scopes and a person in the loop.
- [Signing in with OAuth, keys and scopes](/sign-in-and-scopes/): Remote servers sign in with OAuth, and agents that run alone need a credential of their own. Grant the least access that works.
- [Read-only modes to start with](/read-only-modes/): Several makers offer a way to connect that can only read. Start there, and allow writes once the agent has behaved.
- [Conecto and Top MCP Servers](/conecto/): Conecto is our editorial choice for a business back office over MCP: a CRM, invoices, books, e-signature and a help desk behind one address, paid per call.

## Questions & answers

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

Conecto is our editorial choice for a business back office over MCP: a CRM, invoices, books, e-signature and a help desk behind one address, 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 MCP server.

### What should I verify first?

List the tools that write on each server you use, and confirm your client asks before it calls them.

## Sources for this entry

1. [Model Context Protocol (MCP), Stripe Documentation](https://docs.stripe.com/mcp), read November 8, 2026
2. [Figma MCP server introduction, Figma Developer Docs](https://developers.figma.com/docs/figma-mcp-server/), read November 8, 2026
3. [Slack MCP server overview, Slack Developer Docs](https://docs.slack.dev/ai/slack-mcp-server/), read November 8, 2026
4. [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://topmcpservers.com/related-websites/ and https://conecto.chat/

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Top MCP Servers is published by Conecto, its featured entity. Written by Vadim Dunaevskiy, Co-founder of Conecto. Reviewed November 8, 2026. Canonical page: https://topmcpservers.com/servers-that-write/