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initializeNegotiate
tools/listDiscover
tools/callInvoke
initialize
The handshake. Returns protocolVersion (2025-06-18), server name/version (Credicorp v1.0.0) and capabilities.
{ "jsonrpc":"2.0","id":1,"method":"initialize","params":{} }tools/list
Returns each tool with its full input schema — the authoritative source for arguments.
{ "jsonrpc":"2.0","id":2,"method":"tools/list","params":{} }tools/call
Invokes a tool by name with an arguments object.
{ "jsonrpc":"2.0","id":3,"method":"tools/call","params":{ "name":"ListProducts","arguments":{} } }Or just read the card
A plain GET on the endpoint returns the server card — protocol, identity and a tool summary — without any JSON-RPC.
Frequently asked questions
Which method returns the tool input schemas?
tools/list. The GET server card gives names and descriptions; tools/list gives the full schemas.
Do I have to call initialize first?
A compliant MCP client does, to negotiate the protocol. For a quick manual test you can call tools/list or tools/call directly with curl.
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