Claude Connector Development. Your product, inside Claude.
We build remote MCP servers that work as Claude connectors, with OAuth sign-in, clear tools and a directory-ready submission, reviewed by an engineer before anything ships.
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- CROturn traffic into leads
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What a Claude connector is
Let Claude work with your product
A Claude connector is a remote MCP server that Claude can use on behalf of a signed-in user. Anthropic's docs say one connector catalog serves Claude on the web, desktop and mobile, plus Claude Code and Cowork. Users can add any server by URL as a custom connector, or find it in Anthropic's connectors directory once it is listed.
We build the server, design the tools, add OAuth sign-in and prepare the directory submission. We also built LedgerMCP, our own MCP-native bookkeeping product, which users connect to Claude.
Read what Claude connectors are and how to get listed in the Claude connectors directory first if you are new to this.
What we build
Claude connector development services
Remote MCP server
Your connector on an https address, built with the official SDKs and tested in Claude and Claude Code.
OAuth sign-in
OAuth 2.0 for authenticated services, so each user connects their own account with narrow scopes.
Tool design
Clear names under 64 characters, a title on every tool, and read and write actions kept separate.
Directory submission
Privacy policy, docs, support contact and a populated test account, as Anthropic's submission page asks.
MCP Registry listing
A listing in the open MCP Registry too, which Anthropic notes is separate from its own directory.
Maintenance
Spec updates, new tools and fixes after Anthropic's review feedback.
What Anthropic checks
Built for the connectors directory
Anthropic's submission requirements and review criteria (checked 6 November 2026) shape how we build:
- An https server URL
- OAuth 2.0 where sign-in is needed
- A title plus a read-only or destructive hint on every tool
- No catch-all tools mixing reads and writes
- Tool names of 64 characters or fewer
- No instructions to the model hidden in descriptions
- Privacy policy, docs and support contact
- A populated test account for reviewers
- No money transfers or AI media generation
Anthropic says new submissions are scanned automatically and listed as Community connectors by default, and some are escalated to a Verified review. It doesn't publish a review timeline, so we don't promise a listing date.
The process
How a Claude connector project runs
Scope, build, test and submit, with a person signing off at each step.
Scope
Which jobs users should do from Claude, which data they need and what must stay in your product.
Design the tools
Names, inputs, outputs, annotations and scopes, written down before code.
Build
The server and OAuth flow, built with Claude Code and reviewed by an engineer.
Test
Tested as a custom connector in Claude and Claude Code, and with the MCP Inspector.
Submit
We prepare the directory submission with your team, since an account owner submits it.
Maintain
Monitoring, updates and responses to review feedback.
Pricing
Quoted per project
Claude connector projects are quoted as a fixed scope after a short call. The price depends on the number of tools, sign-in and the systems involved. See MCP server development cost for what drives it.
Ask for a quote →Before you build
Guides for connector teams
How connectors work, how the directory reviews them and how to launch.
What Are Claude Connectors? Directory vs Custom Connectors Explained
Claude connectors explained for software companies: directory vs custom connectors, which plans can add them, where they work, and the remote MCP underneath.
Read the guide →How to Get Your MCP Server Listed in Claude's Connectors Directory
How a company submits a remote MCP server to Anthropic's Claude connectors directory: who can submit, the 10 portal steps, review rules and a prep checklist.
Read the guide →How to Publish a Remote MCP Server to the MCP Registry Under Your Company Domain
Publish a hosted MCP server to the official MCP Registry under your company domain: DNS or HTTP proof, a remote server.json, mcp-publisher and CI releases.
Read the guide →MCP Server Launch Checklist: Auth, Tools, Registry, Directories and Your Website
A pre-launch checklist for a public MCP server: auth, tool annotations, docs per AI app, registry server.json, Claude and ChatGPT submissions, and analytics.
Read the guide →
Project Managers who will work with you on your project!
Irina S.hello@eseospace.com
Benjamin G.ben@eseospace.com
David G.david@eseospace.comWork with us
Talk to the team behind your project
Tell us what you need and we’ll match you with the right people.
Book a Discovery Call
Jeanette M.jeanette@eseospace.com
Mark S.mark@eseospace.com
Maryna P.maryna@eseospace.com
FAQ
Common questions
Do users need the directory to use our connector?
Who can submit to the Claude connectors directory?
Does a listing in the MCP Registry put us in Claude?
Can you guarantee a Verified listing?
Will the same server work in ChatGPT?
Want your product in Claude?
Book a free strategy call. Tell us what users should be able to do from Claude, and we'll outline the tools, the submission checklist and a fixed quote.
Book a Strategy Call →
