exist.md

prodserver.mcp.exist

tf = exist(endpoint,name,type)

Check for existence of named tools, resources and prompts on the given Model Context Protocol server. name may be a list with multiple names, but type must always be a single string. The output tf is the same size as name. Each element in tf indicates if the corresponding element of name is a known type on the server at endpoint.

Tools, resouces and prompts are three of the primitives potentially hosted by a Model Context Protocol server. Each primitive has a name and a description.

Inputs

Argument	Type	Description	Example
endpoint	string	Network endpoint of MCP server.	"http://localhost:9910/primeSequence/mcp"
name	string	Name of the MCP primitive	"primeSequenceMCP"
type	string	Type of MCP primitive	"tool", "resource" or "prompt"

Outputs

Argument	Type	Description	Example
tf	logical	Does the MCP primitive exist?	true

Optional Inputs (Name/Value pairs)

Pass optional arguments with argument=value syntax following required inputs. For example: timeout=17.

Argument	Type	Description	Default
delay	integer	Number of seconds pause between retries	3
retry	integer	Number of times to retry on HTTP protocol errors (404, for example)	2
timeout	integer	Number of seconds to wait for a reply	60

Examples

Determine if the tool primeSequenceMCP exists on the server running at http://localhost:9910/primeSequence/mcp:

tf = exist("http://localhost:9910/primeSequence/mcp","primeSequenceMCP", "tool")

The return value tf will be a scalar logical true or false.

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Determine if the tools toolOne, toolTwo and toolThree exist on the server http://mcp.mathworks.com:8675/mcp:

tf = exist("http://localhost:9910/primeSequence/mcp",["toolOne", "toolTwo", "toolThree"], "tool")

The return value tf will be a three-element vector of logical values. tf(1) indicates the existence of toolOne, tf(2) the existence of toolTwo and tf(3) the existence of toolThree.