Free MCP Server Hosting: What You Really Get and the Limits

Free MCP server hosting exists, but it is capped by requests, users or AI runs, and it usually comes with fewer controls. Registries offer free tiers for community servers, managed endpoints like BusinessMCP offer a free plan with small limits, and you can self-host on free infrastructure tiers if you accept the security work yourself.

What “free” usually means

A free tier is a trial with a long fuse. Vendors give away the endpoint and meter the expensive parts. Reading plan tables for the meter is more informative than reading the headline.

Offer	What is free	What is capped	Source
BusinessMCP free plan	Hosted endpoint, no credit card, aggregation of third-party MCP servers	300 monthly unique visitors, 30 AI runs a month (max 5 a day), full-access keys only, no own database	BusinessMCP hosting page
Smithery Hobby tier	Hosting of listed servers	50K requests per month, per BusinessMCP’s comparison	Comparison page
Self-host on a free infrastructure tier	Compute, within the provider’s limits	Your time, plus provider limits that change	Check the provider

The Smithery row is a competitor’s description verified on a given date, so confirm it with Smithery. The BusinessMCP row is the vendor’s own page. Our Smithery note covers the context.

The BusinessMCP free plan in detail

According to the plan table on BusinessMCP’s MCP hosting page, the free plan includes the hosted endpoint, aggregation of third-party MCP servers you connect, and full-access keys. It excludes your own database connection (Starter and above), and scoped key presets arrive at Growth, with custom policies at Business. Usage limits are 300 monthly unique visitors and 30 AI runs a month, capped at 5 a day.

Those numbers tell you what the free plan is for: trying the idea on a small site with a few questions a day. It is not for a team that runs agents continuously. The page also admits the free tier is small and that the first week is mostly OAuth setup, because the endpoint is only useful once sources are connected.

Full-access keys deserve a note. A free key can do whatever the connected sources allow, so keep write-capable connections out of a free trial until you have read the security guidance.

Key takeaway: a free tier is for evaluating fit. Judge it on setup effort and the quality of controls, not on how long it stays free.

Free self-hosting: the real price

Running your own server on a free compute tier costs no money and a fair amount of attention. You still need:

1. An https URL with a valid certificate.
2. Authentication on every request, as described in MCP server hosting with authentication.
3. Secrets stored outside your code.
4. Logs you actually read.
5. A plan for cold starts and restarts, since free tiers often sleep idle services. Whether that applies depends on the provider.

A server with open access because “it is just a test” is the commonest failure. Anyone who finds the URL can call your tools, and tools frequently hold real credentials.

Checklist for judging a free tier

• Does the free plan include authentication, or is it open?
• Are limits per month, per day or per minute, and what happens at the limit: a block, a throttle or an upgrade prompt?
• Can you export your data if you leave?
• Is there a credit card requirement? BusinessMCP states none for its free plan.
• Does the tier include logging, even basic?
• What does the first paid step cost? Pricing structures matter more than the free tier once you grow.

When to move on

Move off free when a limit blocks a real workflow, when more than a few people depend on the server, or when you need scoped keys so one agent cannot see another’s data. Staying free past that point usually costs more in workarounds than a paid tier does. The move might be to a paid managed plan, to a registry’s pay-as-you-go tier, or to your own infrastructure; the platform comparison helps pick.

If you are only exploring, there is one more free option that involves no hosting at all: run the server locally over stdio and learn the protocol first. When you need a shared URL, revisit the options above.

If you are choosing between assistants as well as hosts, MCP server hosting for AI assistants covers client differences.

A one-week trial plan

A free tier is only worth using if you test the right things. Try this sequence on any free plan, including BusinessMCP’s.

1. Day one: connect one read-only source and one AI client. Time how long setup takes.
2. Day two: ask five real questions you would normally answer by hand. Note which the agent answers correctly.
3. Day three: look at the logs. Can you see each tool call, its arguments and its result?
4. Day four: revoke a key and confirm access stops immediately.
5. Day five: hit a limit on purpose, if you can, and see what the plan does at the cap.
6. Day six: try to export your data.
7. Day seven: decide with a written list of what was missing.

Test	Pass looks like
Setup	Under a day, without vendor help
Answers	Agent uses the right tool, cites the source
Logs	Per-call record with tool and arguments
Revocation	Immediate, per key
Cap behaviour	Clear message, no silent failure
Export	CSV or JSON of your data

Free hosting is a fine place to learn what you actually need. Just do not mistake a working demo for a production decision.

Hidden costs on “free” plans

Read the meter, not the banner. A plan limited by monthly unique visitors, as BusinessMCP’s is, behaves differently from one limited by requests, as the Smithery Hobby tier is described. Visitor-based limits depend on your website traffic and are easy to forecast if you already run analytics. Request-based limits depend on how chatty your agents are, and an agent in a loop can burn a monthly allowance in an afternoon.

Three less obvious costs are worth pricing in:

• Migration time. If you build workflows around a free tier’s quirks, moving costs hours. Keep tool names and descriptions portable.
• Setup effort. BusinessMCP’s page says the first week is mostly connecting sources through OAuth. That is a real time cost even when the money cost is zero.
• Missing governance. On the free plan, keys have full access. If an agent misbehaves, the only control is revoking the key, so keep the connected sources read-only until you can scope access.

None of this argues against free tiers. It argues for using them deliberately, with a date on which you decide whether to stay.