Unverified50% confidenceOpinionExact time
If an application merely calls a function within the same process, writing a plain function directly is far simpler than setting up an MCP server.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
When Should You Not Build an MCP Server? AI Engineer Interview Question Explained
youtubeCode & Agents10/16/2026
Related Entities
Related Claims
Partially VerifiedBefore MCP appeared, if developers wanted AI to call external services, they usually had to write Function Calling code separately for each service, and the interfaces of different model providers were mutually incompatible.79% similarUnverifiedWhen an MCP server generates tools, it translates each operation corresponding to an operationId in the OpenAPI specification into a function callable by the model, with the function name, input parameter types, and descriptions all derived from the specification itself.75% similarUnverifiedAn MCP remote server refers to a type of implementation where the tool logic runs outside the user's own process and is called by the model over the network; compared with local tools it adds real-world constraints such as network latency, timeouts, partial failures and billing.74% similarUnverifiedIf you are only defining a few tool functions in a single application for the model to call, Tool Calling is entirely sufficient, and introducing MCP instead adds complexity.74% similarUnverifiedApp Functions greatly simplifies the integration process of MCP (Model Context Protocol).74% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1048231API
curl https://kongchang.com/api/v1/knowledge/claims/1048231MCP
get_claim(id=1048231)