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tunnel-knowledge-base

https://api.tunnelpowered.com/api/mcp

answers a handshake

Registry name: com.tunnelpowered/knowledge-base
Reports itself as: tunnel-knowledge-base 1.1.0
Protocol version: 2025-06-18
Transport: streamable-http
HTTP status: 200
Latency: 871 ms
Tools: 17
Checked: 2026-09-06T02:57:07Z

Tools it reports

search_businesses
get_business
check_merchant_verification
ask_business
ask_business_freeform
check_escalation
check_commitment
get_rate_card
request_quote
check_availability
commit_order
cancel_order
reschedule_order
request_order_change
contact_business
check_replies
send_followup

Check it yourself

curl -s -X POST https://api.tunnelpowered.com/api/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"you","version":"0"}}}'