Surface design
We decide exactly what to expose — the tools, resources, and boundaries — so agents get power without the footguns.
Custom MCP Server
An MCP server that lets any agent safely use your tools, data, and APIs.
- Price
- From $12K
- Timeline
- 3–5 weeks
- Terms
- Fixed scope
We build one MCP server that lets any agent use your tools, data, and APIs — safely.
Named tools with typed schemas, auth and permissions, observability, and integration tests, in TypeScript — plus a private deploy or registry submission, across three to five weeks.
MCP is the universal protocol: one server works across Claude Code, Codex, Cursor, and any MCP client. Build it once and the investment compounds instead of locking you in.
Build the tools
TypeScript MCP server, named tools with typed schemas, auth and permissions, and structured error handling.
Harden + test
Observability, integration tests against real calls, and rate and permission scoping.
Ship
Private deploy or registry submission, plus a runbook — one server, every MCP client.
What the engagement covers
- What to expose (and not)
- Tools vs resources
- Blast-radius boundaries
Agents get exactly the power they need — no accidental 'delete production' tool.
- Typed input schemas
- Clear descriptions
- Deterministic outputs
Tools an agent calls correctly the first time, because the schema tells it how.
- Token + scope model
- Per-tool permissions
- Audit log
Every call is authenticated, scoped, and logged — you can see who did what.
- Call traces
- Error surfacing
- Usage metrics
You can see how agents use your tools, and debug fast when they don't.
- Integration tests
- Real-call fixtures
- CI
The server is tested against real calls, not just types — so it holds under agents.
- Private deploy or registry
- Versioning
- Runbook
One server works across Claude Code, Codex, Cursor, and any MCP client — the investment compounds.
What you receive
Tangible artifacts you keep, whether or not you continue past this engagement.
Deliverables · 8 included
- 01TypeScript MCP server
- 021–5 named tools
- 03Auth + permissions layer
- 04Observability
- 05Error handling
- 06Integration tests
- 07Private deploy or registry submission
- 08Runbook
A working server, delivered typed and tested — not a proof of concept.
The tool schema an agent reads, the surface it exposes, the permissions around it, and the clients it works across. A sample is shown; yours wraps your stack.
A tool schema
The typed contract an agent reads to call your tool correctly the first time.
01// a named tool an agent calls correctly02export const createInvoice = tool({03 description: 'Create a draft invoice',04 input: {05 customerId: z.string(),06 amount: z.number().positive(),07 },08 access: 'write · scoped',09 handler: createInvoiceImpl,10})The implementation is adapted to the qualified workflow and reviewed before release.
The tool surface
Named, scoped actions — each authenticated and audited.
write · scoped
Auth + tests
Every tool authenticated, scoped, and covered by real-call tests.
per-tool
- Input
- Representative case
- Evidence
- Trace and expected outcome
The states demonstrate the review UI. They are not evaluation results.
What we measure
Agree the baseline, source and acceptance criteria before release.
- Baseline
- Measured with the buyer
- Source
- Named system of record
- Acceptance
- Agreed before release
Targets and observed results belong to the qualified workflow, not a sample dashboard.
Illustrative product scenes · never client results
Plus: Private deploy or registry submission · a runbook · 30 days of async Q&A.
Built for
Exposing internal tools to agents
A safe, typed, audited surface over your stack — instead of hand-rolling function-calling per vendor.
Making a proprietary API agent-accessible
Your API, wrapped as MCP tools any agent can use correctly and safely.
Standardizing agent access
One protocol across every client, so tool access isn't rebuilt for each new agent.
Questions, answered
Common questions
Start with one useful decision.
Bring the workflow and the person responsible. We scope the exact number with you, and sign a mutual NDA before any code or data is shared.
From $12K · 3–5 weeks