I will build custom mcp servers for claude and chatgpt
About this gig
Want Claude or ChatGPT to look up records or use an existing API in your workflow?
I build custom MCP servers that expose agreed API actions as tools. We confirm the client, connection method, and access limits before development. My Meridian portfolio project shows an MCP integration in an AI support workflow.
Basic: one read-only tool for one documented API, tested with one agreed client.
Standard: up to three tools for one API, with its existing authentication method.
Premium: up to five tools across two APIs, with agreed access checks and approval handling for write actions.
Every package includes source code, input validation, tests, and setup instructions. New AI agents, database migrations, custom OAuth services, and ongoing hosting need a separate scope. API and hosting charges are paid by you.
Other MCP clients can be discussed after checking their connection and account requirements.
Before ordering, send the API documentation, intended client, and the actions you need. Mark which actions may change data. I'll confirm compatibility and scope before quoting.
Get to know Cynthia O.
AI app fixes, Python FastAPI backends and MCP integrations
- FromNigeria
- Member sinceJul 2022
- Last delivery3 years
Languages
English
My Portfolio
FAQ
What counts as one MCP tool?
One named action with agreed inputs and outputs, such as searching tickets or reading one order. A tool's complexity still matters, so I review the API and workflow before confirming the package.
Which clients can you connect?
We agree on one client and connection method before ordering. Send the exact Claude, ChatGPT, or other client setup you use. Compatibility depends on its supported transport, plan, and authentication requirements.
Does this include an AI agent?
These packages cover the MCP server and its tools. Building a separate autonomous agent, frontend, or orchestration workflow needs an additional scope.
Can the tools change data?
Yes, where agreed in scope. We define permitted actions and where approval is enforced. Basic is read-only. Write operations need review of both the client and server behaviour.
Are authentication and hosting included?
Standard and Premium cover the connected API's existing authentication method. A new OAuth service, live hosting, or managed infrastructure needs a separate scope. You pay the platform and API fees.
What do I receive?
Source code, configuration instructions, tests, and a demonstration with the agreed client. Setup notes explain how to supply credentials without embedding them in code.

