Developer Tools · Productivity
Manifest Check
Check web app manifest installability in chat
Manifest Check runs the same live engine here and in your assistant
Live playground
Use Manifest Check now
Point either tool at a public page or manifest URL and get live installability evidence — the manifest is fetched and validated against the spec, and every declared icon is downloaded and decoded for true pixel dimensions.
Your usage
—
Free forever — create a free account for a bigger monthly allowance that follows you across every app and every assistant.Pooled across every app and surface. Manage usage
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Marketplaces
Open Manifest Check where you already work — every listing runs the same live engine as this page.
- Marketplace listings are on the way. Meanwhile, point any MCP-compatible assistant straight at the live endpoint:
https://powmcp.com/pwa-manifest-check/mcp
Proof
Real apps.Real engines.Real results.
- Application
- Manifest Check
- Category
- Developer Tools
- Platform
- Web
Engine Anatomy
Proof
Manifest Check
What it does
Check web app manifest installability in chat
Preflight a web app's manifest from chat with live spec conformance, Chrome installability, and real icon evidence: fetch the page, resolve the manifest link, validate every field, and fetch and decode each declared icon to prove reachability, true pixel dimensions, and maskable coverage, or compare two deploys under identical limits.
Tools in this application
Manifest Check
manifest_check
manifest_check
Manifest Compare
manifest_compare
manifest_compare
0USD
Free to use with fair-use rate limits.
Manifest Check questions
Scope and boundaries for Manifest Check.
01What does Manifest Check actually check?
Preflight a web app's manifest from chat with live spec conformance, Chrome installability, and real icon evidence: fetch the page, resolve the manifest link, validate every field, and fetch and decode each declared icon to prove reachability, true pixel dimensions, and maskable coverage, or compare two deploys under identical limits.
02What does it never do?
It reports what its pinned engine measured and nothing more — it does not judge quality, correctness of your underlying business decisions, or anything outside its stated scope, and it never fabricates a result.
03What does it cost?
Nothing. Every published app is free to use with fair-use rate limits.
04Can my assistant connect directly?
Yes — any MCP-compatible assistant can connect straight to the canonical endpoint: https://powmcp.com/pwa-manifest-check/mcp. Marketplace listings are conveniences over the same live engine.