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vastlint

https://vastlint.org/mcp

answers a handshake

Registry name: io.github.aleksUIX/vastlint
Reports itself as: vastlint 0.9.0
Protocol version: 2025-03-26
Transport: sse
HTTP status: 200
Latency: 262 ms
Tools: 15
Checked: 2026-09-06T03:03:24Z

Tools it reports

validate_vast
validate_vast_url
inspect_vast
list_rules
explain_rule
fix_vast
get_adcp_capabilities
list_content_standards
create_content_standards
get_content_standards
update_content_standards
delete_content_standards
calibrate_content
validate_content_delivery
list_creatives

Check it yourself

curl -s -X POST https://vastlint.org/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"}}}'