Vastlint
by aleksUIXcommunityv0.6.2
13
Validates VAST XML ad tags against IAB Tech Lab VAST specifications, XML well-formedness, URI/MIME/currency/ad-id rules, and SIMID-related interactive creative rules. It also provides an MCP server with tools for validating, inspecting, listing rules, explaining rules, and auto-fixing VAST tags.
From the registry: Validate VAST, VMAP, and DAAST ad tags against IAB specs. 182 rules, zero dependencies.
Install & configure
Install in your client
Paste into the AI you're chatting with — it will figure out the rest
Please install the `vastlint` MCP server into my current AI client (that's you).
Canonical MCP server config (HTTP transport):
- url: `https://vastlint.org/mcp`
Note: README provides two MCP options: hosted endpoint at https://vastlint.org/mcp (no install, preferred simplest path) and a local stdio server via `cargo install vastlint-mcp` with command `vastlint-mcp`. No environment variables or headers are documented for the hosted endpoint.
Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.Note: README provides two MCP options: hosted endpoint at https://vastlint.org/mcp (no install, preferred simplest path) and a local stdio server via `cargo install vastlint-mcp` with command `vastlint-mcp`. No environment variables or headers are documented for the hosted endpoint.
Tools (6)
validate_vast
Validate VAST XML content and return structured validation results.
validate_vast_url
Validate VAST XML fetched from a URL.
inspect_vast
Inspect a VAST document and return structured information about it.
list_rules
List available validation rules.
explain_rule
Explain a specific validation rule.
fix_vast
Apply supported fixes to a VAST document.
Packages
https://github.com/aleksUIX/vastlint/releases/download/v0.6.2/vastlint-mcp-linux-x86_64.tar.gz
mcpbtransport: stdio
Remote Endpoints
https://vastlint.org/mcp
type: sse
Details
- Language
- Rust
- License
- NOASSERTION
- Released
- Jun 21, 2026
- Last commit
- Jun 2, 2026
- Registry name
- io.github.aleksUIX/vastlint