Community MCP · First-party · Free to start
MCP Channel Builder — Community brings API inspection, skill-link checks and setup guidance into your MCP client. Explore the free options below, then set up access on the website.
No card needed for free Builder access. A published listing and enabled account are still required. These public descriptions and examples are not proof of live tool availability.
Free tools, free development and free allowances are different things. Each offering has its own setup and limits; enabling Builder does not automatically enable the others.
Free, read-only tools
Inspect inline API specs, check GitHub skill-link shapes, and get setup guidance from your MCP client.
10,000 admitted attempts per account per UTC month; 60 per fixed minute across keys.
Access: Register, enable the published free Builder listing on the website, then connect with your platform key. Check availability in setup.
No automatic creation, uploads, execution, publication or charges. Errors after admission count; gateway limits also apply.
Free selected skill content
Select 1–20 eligible public/free skills. Search and load their Markdown instructions in your AI client.
10,000 admitted attempts per account per UTC month; 60 per fixed minute across keys.
Access: Sign in, select skills on the website, and use your platform key with the collection-specific configuration. No per-skill subscription required.
Read-only retrieval, not skill execution or whole-directory search. No document credits or overage charges; gateway key limits also apply.
Free allowance + optional paid packs
Publish a named knowledge MCP from your documents. Your customers enable the listing and use ask and list_documents through the marketplace gateway.
200,000 stored characters per owner; 2,000 free asks per caller account per calendar month.
Access: Register and manage documents on the website. Subscribers enable the listing and connect with a platform key.
The listing keeps your name, slug and owner-controlled corpus; customers receive read-only tools. Registration currently publishes, so review sharing first. Extra storage/asks use separate packs.
Free preview + free listing option
Preview the tools from your OpenAPI spec publicly, then create and review a marketplace listing for your API.
Listings can offer free access instead of monthly or usage-based pricing. There is no shared unlimited upstream-API allowance.
Access: Preview on the website without an account. Sign in to publish; subscribers enable access and use a platform key for gateway calls.
Your upstream API still needs hosting and may require provider credentials or incur provider costs. A free listing does not make an external API free.
Free development tier
Build a custom MCP from a template, edit code, test tools, and review your work in the browser.
1 project; 10,000 platform AI tokens per day; 10 calls per owner-only preview.
Access: Sign in and develop on the website. Published marketplace tool access is a separate subscriber/key workflow.
Production hosting requires Pro. Hosting charges and any consumer listing price are separate. Free development is not free production deployment.
Discover more
Look for the Free label and review each listing’s access requirements and limits. Paid first-party products are not included just because an offering is called Community.
Directory links alone do not grant platform-key access. An upstream provider may still require credentials or charge for its service.
Browse marketplace listingsInput: An inline JSON spec
Preview names, descriptions, schemas and security schemes for up to 20 operations. No URL fetching, provider calls or credential tests.
Input: 1–10 GitHub URLs
Check explicit SKILL.md or skill-folder URL shapes. A candidate is not a content, license, safety or catalog verification.
Input: rest, documents or skills
Get free options, allowance boundaries and website setup links. Generic guidance, not an audit of your account or an automatic setup action.
Read-only: no resource creation, document upload, skill execution, deployment, publication, subscription activation, key management or billing changes.
These are static examples, not live calls. After website setup, choose the named tool in your MCP client and provide its arguments. Never add your key to these inputs.
Example request to your assistant
Inspect this small spec and explain the MCP tool it would produce. Do not call the API or publish anything.
Expected outcome
A preview containing one tool named greet with a required string name input, plus a link to create a REST listing. No API request is sent.
mcp-channel-builder/inspect_openapi
{
"spec": {
"openapi": "3.0.3",
"info": {
"title": "Greeting API",
"version": "1.0.0"
},
"paths": {
"/greet": {
"get": {
"operationId": "greet",
"summary": "Greet someone",
"parameters": [
{
"name": "name",
"in": "query",
"required": true,
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "A greeting"
}
}
}
}
}
}
}Example request to your assistant
Does this example URL identify a skill file rather than a generic repository? Only check its structure.
Expected outcome
The first URL is a structural candidate. This is a fictional example URL; no content is fetched and existence, safety, licensing and catalog eligibility are not verified.
mcp-channel-builder/check_skill_sources
{
"urls": [
"https://github.com/example/repository/blob/main/skills/review/SKILL.md"
]
}Example request to your assistant
How do I offer my API as a free MCP? Explain setup and provider-cost boundaries, without creating a listing.
Expected outcome
Website steps for spec review, listing/authentication, free or paid pricing, publication and client access. Provider hosting and costs remain separate.
mcp-channel-builder/get_setup_requirements
{
"capability": "rest"
}Example request to your assistant
What is free for Documents to MCP, and what should I review before sharing? Do not upload anything.
Expected outcome
The free stored-character and monthly ask allowances, separate paid packs, and a warning that document registration currently publishes a listing.
mcp-channel-builder/get_setup_requirements
{
"capability": "documents"
}Example request to your assistant
How do I connect a few eligible free skills using a key I create on the website?
Expected outcome
Select 1–20 eligible skills on the website, then use the collection-specific configuration. No per-skill subscription, installation or script execution.
mcp-channel-builder/get_setup_requirements
{
"capability": "skills"
}Read the public OpenAPI schema and examples. It documents an internal REST adapter; connect through the platform gateway, not those REST paths.
Create or manage your platform API key on the MCP Channel website in Dashboard → API Keys, never through MCP tools. Enter it in your client's configuration, not chat or tool arguments.
Suggest an MCP
No account is required to contact us. Include the public MCP endpoint, registry/package/repository link, and an email address where we can ask follow-up questions. Suggestions are reviewed manually and do not create a listing, prove ownership, grant gateway access, or guarantee directory publication.
Invalid inputs and tool errors count after admission. Lost responses can count; no automatic retries or refunds. Gateway limits may be stricter. Specs allow non-cyclic local references only, with bounded nesting and expansion. Builder does not consume document credits, Skills allowance or paid hosting.
No. Public descriptions and examples are open to everyone, but MCP tool access requires an account, the relevant enablement or selection, and a platform key. No card is needed solely for free Builder access.
No. Register, enable marketplace access, and create/manage keys on the MCP Channel website. The Community tools only explain the steps. Never paste a key in an AI conversation or tool arguments.
No. First-party means operated by the platform, not necessarily free. Review each offering's pricing and limits. Free Builder, Skills and document allowances are independent; production hosting and paid products remain separate.
No. This page makes no tool calls. Authenticated Builder calls are also read-only. Actual creation, upload and publication are separate website workflows. Documents registration currently publishes a listing, so review before sharing.
The setup page checks for a published, eligible Builder listing and working allowance service. If unavailable, do not call the internal REST adapter or share your key with an agent; check setup again later.