Why a custom MCP server vs per-vendor function-calling?

MCP is the universal protocol — one server works across Claude Code, Codex, Cursor, and any MCP client. Function-calling is per-vendor and locks you in. The MCP investment compounds.

Builds

Custom MCP Server

An MCP server that lets any agent safely use your tools, data, and APIs.

Build an MCP server

From $12K

Price

3–5 weeks

Timeline

The engagement

A custom MCP server, built in TypeScript, that connects any agent — Claude Code, Codex, Cursor, or your own — to your internal tools, databases, and APIs. Named tools with auth and permissions, observability, integration tests, and a private deploy or registry submission. One server works across every MCP client, so the investment compounds.

What this engagement covers

What to expose via MCP
Tools + resources
Auth + permissions
Observability
Testing
Private deployment
Runbook

What you actually get

TypeScript MCP server
1–5 named tools
Auth + permissions layer
Observability
Error handling
Integration tests
Private deploy or registry submission
Runbook

Who buys this

Teams exposing internal tools to agents
Platform teams building agentic workflows over their stack
Companies with proprietary APIs to make agent-accessible

Common questions

Newsletter

One letter, every week. Working systems — not hot takes.

Build logs, agentic engineering decisions, agent failures, evals, and what survives real users. Sent weekly, never more.