MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors

Name: MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors
Author: dev.workers.pathwren.www

MCP serverMCP

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

by dev.workers.pathwren.wwwhomepage ↗v1.3.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability111/111 checks ok

when	check	result	http	latency	detail
3 h ago	mcp initialize	ok	200	90 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
10 h ago	mcp initialize	ok	200	35 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
17 h ago	mcp initialize	ok	200	14 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
23 h ago	mcp initialize	ok	200	16 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
30 h ago	mcp initialize	ok	200	136 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
2 d ago	mcp initialize	ok	200	168 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
2 d ago	mcp initialize	ok	200	16 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
2 d ago	mcp initialize	ok	200	55 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
2 d ago	mcp initialize	ok	200	101 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools
3 d ago	mcp initialize	ok	200	83 ms	server mcp-endpoint-lint 1.0.0 · protocol 2025-06-18 · 7 tools

Tools observed via MCP handshake

whoami — {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — POST that to https://www.pathwren.workers.dev/mcp/lint and the answer
example — {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"example","arguments":{}}} — POST that exact body to https://www.pathwren.workers.dev/mcp/lint an
handshake_report — FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — POST initialize to an MCP endpoint you nam
tools_list_report — FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — Handshake, then tools/list, then check eve
error_conformance — FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — Send five things a real client eventually
discovery_report — FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — GET the documents an MCP client reads BEFO
score_card — FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — Run handshake_report, tools_list_report, e

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No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

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Official MCP Registrydev.workers.pathwren.www/mcp-endpoint-lint

first seen 1 mo ago · fetched 2 d agoopen ↗

Field history (7 recent events)

1 mo ago · declared · version → "1.3.0"
1 mo ago · declared · description → "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"tools/call\",\"params\":{\"name\":\"whoami\",\"arguments\":{}}} free no key"
1 mo ago · declared · publisherName → "dev.workers.pathwren.www"
1 mo ago · declared · summary → "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"tools/call\",\"params\":{\"name\":\"whoami\",\"arguments\":{}}} free no key"
1 mo ago · declared · version → "1.1.0"
1 mo ago · declared · protocols → ["mcp"]
1 mo ago · declared · homepageUrl → "https://www.pathwren.workers.dev/c/mcp-registry-official/mcp-lint.html"

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