Best MCP server development companies with real proof

On public evidence, Boldare and Intuz are the strongest MCP server development companies to shortlist right now. Boldare shows the most MCP work you can open yourself, and Intuz has the clearest client project tied to MCP. RaftLabs and mcp-agency.com are the picks if you want a published price before the first call.

We wrote this guide, so weigh that. We left ourselves out of the ranking. Where we fit is in a box at the end.

Who this is for: a business that wants an outside team to build an MCP server, so Claude, ChatGPT, or another AI client can use its product or data. If you aren’t sure you need one, read when a business needs an MCP server first. Who should look elsewhere: if your API already has an OpenAPI spec and you only need a basic server, a generator may be enough. See platforms, not agencies.

Why another list

We read the “best MCP development company” lists that ranked for this question on 2026-10-13. Most were written by an agency that ranks itself near the top: Intuz (Intuz first), RaftLabs (RaftLabs second), and n8n Lab (n8n Lab first). n8n Lab also notes that Boldare ranks itself highly on its own blog. Rapid Innovation’s list calls Rapid Innovation “the undisputed leader in Model Context Protocol development”. Phosai Labs doesn’t list itself, but its first pick is LOW/CODE Agency, and it says “we work alongside LOW/CODE Agency”.

Phosai gets the test right: “Always ask for a production case study before engaging any MCP agency.” So this list scores only what you can check.

How we scored them

Each company gets 0, 1, or 2 points on five criteria, for a total out of 10. We only counted what we could open on a public page on 2026-10-13. A low score means we found little public evidence. It doesn’t mean the work is bad. A lot of MCP work is internal and under NDA.

Ties go to the named client score, then the live server score, then reviews. We also sent an MCP request to /mcp on every company’s own domain. None answered as an MCP server. That says nothing about servers they built for clients on other domains.

The scores at a glance

Sort by the named client column alone and only three companies score at all: Boldare, Intuz, and mcp-agency.com. Nobody scores 2. That’s the state of the market in late 2026: lots of MCP service pages, very little named client proof.

1. Boldare: best for seeing real MCP work before you buy

• Live server (1): their MCP service page says Boldare “runs its own public RFQ MCP server”, so an AI agent can send them a project brief. The page gives no URL, so we couldn’t test it.
• Named client (1): their five deployments post includes one outside client, “a Polish public organization managing knowledge in the culture sector”, unnamed. The other four are Boldare’s own systems, such as a CMS publishing server its marketing team uses daily.
• Open code (1): MCP Farmer, an open-source CLI for scaffolding, testing, and auditing MCP servers. 6 stars on GitHub (checked 2026-10-13).
• Price (1): no MCP price. The service page gives timelines: about 2 to 3 weeks for a single-API server and 4 to 6 weeks for a multi-source server with OAuth. Clutch lists a $25,000+ minimum and $50 to $99 an hour.
• Reviews (2): 4.8 from 63 reviews on Clutch, covering all their work.

Pick them if you want a team that uses MCP on its own systems every day. Their minimum rules out small projects.

2. Intuz: best for an SMB that wants a named client story

• Live server (0): none found.
• Named client (1): the TransIQ Logistics case study describes a natural-language analytics agent for a logistics company. The MCP link is in a separate blog post, which says the agent chain “accessed data only through a controlled MCP layer” over 500M+ operational records. Phosai and n8n Lab both call it the most checkable MCP case study among agencies.
• Open code (1): a build tutorial.
• Price (1): Clutch lists a $10,000+ minimum and $50 to $99 an hour.
• Reviews (2): 4.8 from 54 reviews on Clutch.

Pick them if you want a mid-size US-facing firm with one client MCP story you can ask about. Intuz also wrote a list that ranks Intuz first.

3. RaftLabs: best for a published price and an honest self-assessment

• Live server (0): none found.
• Named client (0): RaftLabs says so itself: “It has not published a standalone MCP server case study on this list.”
• Open code (1): a development guide.
• Price (2): “A production MCP server typically scopes into the $20,000-$40,000 range”, at “$29-$49/hr with fixed-price engagements and milestone payments” (RaftLabs, checked 2026-10-13).
• Reviews (2): 4.9 from 20 reviews on Clutch, $10,000+ minimum.

Pick them if you want a price range before the call and a team that’s candid about its own gaps.

4. mcp-agency.com: best for fixed euro packages

• Live server (0): the site links a sandbox demo at demo.mcp-agency.com. Our request to it failed with a TLS certificate error on 2026-10-13.
• Named client (1): the Nervatura case study covers an MCP server and chat layer for Nervatura, an open-source ERP. The page calls it a “strategic partnership”, so it’s unclear whether Nervatura is a paying client.
• Open code (1): the Nervatura repository contains MCP code. 22 stars (checked 2026-10-13).
• Price (2): MCP Foundation about €5,000, MCP Growth about €10,000, and MCP Enterprise from about €30,000, all plus VAT and called indicative (mcp-agency.com, checked 2026-10-13).
• Reviews (0): none found. The site names no owner, address, or team.

Pick them for a small, packaged build at a known price. Ask who you’d be working with before you pay.

5. LOW/CODE Agency: best for teams building on Anthropic’s stack

• Live server (0): none found.
• Named client (0): their case studies name big clients, but none is tied to MCP.
• Open code (1): a tutorial that builds an MCP server for Claude Code. It uses a bearer token from an environment variable and doesn’t cover OAuth.
• Price (1): Clutch lists a $10,000+ minimum and $50 to $99 an hour.
• Reviews (2): 4.9 from 35 reviews on Clutch.

Phosai Labs ranks them first and works alongside them, so that list isn’t independent. Pick them if you want an agency focused on Claude and the Anthropic stack, and ask for an MCP reference on the first call.

6. Klavis AI: best if you want a platform, not a project

• Live server (1): Klavis hosts MCP server instances you create through its API with a key (GitHub README). We couldn’t test one without an account.
• Named client (0): none found.
• Open code (2): the klavis repository has 5,810 stars and lists “100+ prebuilt integrations out-of-the-box, with OAuth support” (checked 2026-10-13). Last pushed 2026-06-01.
• Price (0): we found no price on the pricing page.
• Reviews (0): no Clutch profile found.

Klavis is a product company. Its homepage now leads with “live environments for training AI agents”. Pick it if you want hosted, prebuilt MCP integrations for common SaaS tools, not a custom server for your own product.

7. Simform: best for a large team that does MCP alongside everything else

• Live server, named client, open code (0 each): we found no MCP page, case study, or code on Simform’s own site. It appears on the Phosai and Intuz lists.
• Price (1): Clutch lists a $25,000+ minimum and $25 to $49 an hour.
• Reviews (2): 4.8 from 88 reviews on Clutch.

Pick them if you already need a big partner for cloud and app work and MCP is one part of it.

8. LeewayHertz: best for regulated enterprises

• Live server, named client, open code (0 each): their AI services page lists MCP among the protocols their agent team uses. We found no MCP case study or code.
• Price (1): Clutch lists a $10,000+ minimum and $50 to $99 an hour.
• Reviews (1): 4.7 from 9 reviews on Clutch.

Pick them for MCP inside a wider enterprise AI program in finance or healthcare, where governance matters more than speed.

9. Rapid Innovation

• Open code (1): a step-by-step build guide and an MCP service page.
• Everything else (0): no named client, server, or price found. A Clutch profile under the same name shows no reviews, and we couldn’t confirm it’s theirs.

Their own list ranks them first and describes MCP partly in terms of “tone constraints” and “ethical boundaries”, which isn’t what the protocol does. Ask for a technical call before you rely on them.

10. n8n Lab

• All criteria (0): n8n Lab’s own list ranks it first, and the evidence it gives is “Published technical content and delivery methodology”. We found no MCP case study, code, price, or review profile.

Pick them only if your project is mostly n8n automation and MCP is a small part of it.

Platforms, not agencies

You may not need an agency at all.

• Cloudflare: a guide to “Deploy a remote MCP server on Cloudflare with optional authentication using Streamable HTTP transport.” Right if you have a developer and want to build it yourself.
• Speakeasy Gram: turns an OpenAPI document into a hosted MCP server (Speakeasy). Right if your API is already well described.
• Klavis AI: hosted, prebuilt integrations for common SaaS tools (scored above).

A generated server exposes your API as it is. That’s often too many tools with too little guidance for a model. Our post on why MCP servers use so many tokens explains the cost of that.

How do you choose an MCP development company?

1. Ask for a live server URL. Paste it into our free MCP server checker. It tests transport, version, tools, OAuth discovery, and error shapes in seconds.
2. Ask for one named client project. Phosai’s rule is a good one: “Not a demo. Not a prototype.” If they can’t name one, ask for a reference call instead. Our guide to vetting an offshore development team covers reference calls and trial tasks.
3. Ask how login works. Our guide to adding OAuth 2.1 login to a remote MCP server covers what good looks like. For a server your customers use, the spec says servers “MUST implement OAuth 2.0 Protected Resource Metadata (RFC9728)”. A vendor should know what that means without looking it up.
4. Ask which spec version they target. The current version is 2026-07-28, which removed sessions. An older SDK still works, but ask who pays to update it.
5. Get a price for the scope. Published quotes run from $3,000 to $700,000 depending on scope. Our MCP server cost estimator shows what each source quotes for yours, with a link to every price list.

Who should pick whom

FAQ

Which company is best for building an MCP server?

On public proof checked 2026-10-13, Boldare and Intuz lead among agencies. Boldare shows the most MCP work in use, and Intuz has the clearest client story tied to MCP. No company we checked publishes a named client case study that clearly says an MCP server was built.

How much does an MCP development company charge?

RaftLabs says a production MCP server “typically scopes into the $20,000-$40,000 range”. mcp-agency.com lists packages from about €5,000 to €30,000+ plus VAT. Both checked 2026-10-13. Most others publish only a Clutch minimum, from $10,000 to $25,000.

How do I check if an MCP agency has real experience?

Ask for a live server URL and test it with a checker, ask for a named client or a reference call, and ask how they handle OAuth for customer-facing servers. A team that has shipped one will answer all three fast.

Can I build an MCP server without an agency?

Yes, if you have a developer. Official SDKs and Cloudflare’s remote MCP guide make a small read-only server a modest project. An agency helps most with per-user OAuth, many tenants, and write tools that need confirmation and audit logs.

If you run an MCP team with public, named work and we missed you, send us the links and we’ll score you by the same rules. For our own service, see MCP server development.