Connect Claude Code to Notion, Slack and GitHub with one MCP server
Add the CoreSpeed MCP server to Claude Code at user scope, sign in once, connect Notion, Slack and GitHub in the dashboard, and verify with manage__whoami.
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← All postsHow to add one MCP server to Cursor for apps, memory and web search
Add CoreSpeed to ~/.cursor/mcp.json, click Needs login, and Cursor gets your connected apps, durable memory, live web search and media tools from one server.
How to connect ChatGPT to your apps with a custom connector
Turn on Developer mode in ChatGPT (Plus and Pro on the web), create a connector for api.corespeed.io/mcp with OAuth, and sign in to reach your apps and memory.
How to connect Codex to your apps and give it memory
Register CoreSpeed in Codex with codex mcp add, sign in, connect your apps, and add memory rules to AGENTS.md so Codex recalls decisions across sessions.
How to register your own MCP server for your whole organization
An org admin registers any HTTPS MCP server as a remote connector; its tools join tools/list under the org__ prefix with the same sign-in, caps and trail.
How to use your apps and memory inside claude.ai and Claude Desktop
Add CoreSpeed as a custom connector on the Pro, Max, Team or Enterprise plan. It follows your Claude account to desktop and mobile with your apps and memory.
HTTP 200 with isError true: the most common MCP integration bug
A CoreSpeed tool call can fail inside an HTTP 200. How the two error layers differ, which codes to retry, and which ones need a person instead.
One MCP server vs a config file per agent
When a per-client list of local MCP servers is enough, where it stops scaling, and what changes once a team points every client at one remote server.
What is a remote MCP server, and how do you connect one?
A remote MCP server is reached over HTTPS instead of run as a local process. How sign-in works, and how to add one in Claude Code, Codex and Cursor.
What is an MCP gateway, and why do agents need one?
An MCP gateway is one remote MCP server that fronts many tools and app accounts behind one sign-in. What that changes for config, credentials, spend and audit.
What is MCP, explained for teams running several agents
MCP is the JSON-RPC protocol an agent uses to list and call tools on a server. For teams, one remote server means shared connections, one policy and one ledger.
What is SKILL.md, and why is setup one line?
SKILL.md is the root file of an agent skill: a name, a description and instructions. CoreSpeed publishes its setup as one, so a single chat line installs it.
Why is a tool missing from tools/list?
A tool is missing from tools/list because this caller cannot call it now: app not connected, capability off, agent key reach, or a stale session.
Why tools/list is yours, and not a catalog
tools/list on CoreSpeed returns exactly what this sign-in can call. Absence is a decision, presence is neither health nor permission, so never hard-code it.