SEO Validation Skill
The tool
Let your agent audit web pages. Call it as an MCP tool to scan a URL for SEO issues — missing alt tags, meta tags, multiple H1s and more.
Once your client is connected to the VerveKit MCP server, this appears in its tool list as SEOValidationSkill. It is read-only and open-world: it fetches, it never mutates anything on your side, so most clients will call it without asking you to confirm.
{
"name": "SEOValidationSkill",
"arguments": {
"url": "https://www.example.com"
}
}What that looks like in a conversation
You don't name the tool — the model picks it. Asking about https://www.example.com in the terms this source covers is enough for it to reach for SEOValidationSkill on its own.
Connecting
One server URL covers every skill in the catalog, including this one. Authorization is OAuth — the client opens a browser once and there is no key to paste into a config file.
{
"mcpServers": {
"vervekit": {
"url": "https://api.vervekit.com/v1/mcp"
}
}
}https://api.vervekit.com/v1/mcpPer-client setup — Claude Desktop, Cursor, VS Code, ChatGPT — is on the MCP setup page.
Arguments
These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made.
| Argument | Type | Example | Description |
|---|---|---|---|
urlRequired | string | https://www.example.com | The URL of the web page to validate the SEO metrics of |
What the model gets back
The result carries a structuredContent object matching the tool's declared outputSchema, so a client can read fields without parsing prose. status is "ok" on success and error is null; a null field means the value wasn't available for that input, not that the call failed.
{
"status": "ok",
"error": null,
"data": {
"url": "https://apiverve.com",
"passed": false,
"issueCount": 6,
"issues": [
"Image missing 'alt' attribute: '/assets/img/hero-diagram.png'",
"Image missing 'alt' attribute: '/assets/img/logo-mark.svg'",
"External link missing 'rel' attribute: 'https://twitter.com/apiverve'",
"External link missing 'rel' attribute: 'https://github.com/apiverve'",
"External link missing 'rel' attribute: 'https://status.apiverve.com'",
"Missing meta 'keywords' tag in head"
],
"checks": {
"hasTitle": true,
"titleLength": 54,
"hasMetaDescription": true,
"metaDescriptionLength": 158,
"hasMetaKeywords": false,
"h1Count": 1,
"hasCanonical": true,
"hasViewport": true,
"imagesTotal": 8,
"imagesMissingAlt": 2,
"externalLinksTotal": 10,
"externalLinksMissingRel": 3
},
"seoScore": 93,
"grade": "A"
}
}Fields
| Field | Type | Example | Description |
|---|---|---|---|
url | string | https://apiverve.com | The validated URL that was analyzed for SEO issues |
passed | boolean | false | Whether the URL passed all SEO validation checks |
issueCount | number | 6 | Total number of SEO issues found on the page |
issues | array | ["Image missing 'alt' attribute: '/assets/img/hero-diagram.png'","Image missing 'alt' attribute: '/assets/img/logo-mark.svg'","External link missing 'rel' attribute: 'https://twitter.com/apiverve'"] | Array of SEO issues found (missing alt tags, missing meta tags, multiple H1s, etc.) |
checks | object | {…} | Structured per-rule breakdown of the on-page SEO signals behind the issue list, exposed as booleans, counts and lengths |
checks.hasTitle | boolean | true | Whether the page has a non-empty <title> tag in the head |
checks.titleLength | number | 54 | Character length of the title (null when absent); ~50-60 characters is the common recommendation |
checks.hasMetaDescription | boolean | true | Whether the page has a meta description tag |
checks.metaDescriptionLength | number | 158 | Character length of the meta description (null when absent); ~150-160 characters is the common recommendation |
checks.hasMetaKeywords | boolean | false | Whether a meta keywords tag is present (largely deprecated for ranking) |
checks.h1Count | number | 1 | Number of H1 tags on the page; exactly one is recommended |
checks.hasCanonical | boolean | true | Whether the page declares a canonical link tag |
checks.hasViewport | boolean | true | Whether the page declares a mobile viewport meta tag |
checks.imagesTotal | number | 8 | Total number of <img> elements on the page |
checks.imagesMissingAlt | number | 2 | Number of images missing an alt attribute |
checks.externalLinksTotal | number | 10 | Total number of external (http/https) links on the page |
checks.externalLinksMissingRel | number | 3 | Number of external links missing a rel attribute |
seoScorePremium | number | 93 | Composite 0-100 on-page SEO health score, weighted by real ranking impact (title, meta description and H1 weigh most; image-alt and link-rel penalties scale with the proportion of elements affected). Higher is better |
gradePremium | string | A | Letter grade derived from the score: A (90+), B (80+), C (70+), D (60+) or F |
Failure modes
Errors come back as tool errors with a sentence the model can act on, not a bare status code.
| Status | What it means |
|---|---|
400 / 422 | The arguments didn't validate. The message names the offending one. |
401 | The OAuth session is invalid or expired — reconnect the server. |
403 | Out of credits. Not a bad key — the month's allowance is spent. |
404 | This skill isn't part of VerveKit. Check the catalog. |
429 | Brief rate limit. Retrying after a moment succeeds. |
Other ways to use SEO Validation Skill
Set up SEO Validation Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.
Frequently asked questions
Do I have to tell the agent to use SEOValidationSkill?
No. The tool's name and description are in the model's context once the server is connected, so it selects the tool when the question calls for it. Naming it explicitly works too and is useful when you want to force the call.
Does connecting the server expose every tool at once?
Yes — one connection lists the whole VerveKit catalog. Clients with a tool budget can usually filter the list; the credit cost is per call, so an unused tool costs nothing.
What does a call cost?
5 credits each time the tool actually runs. A model that reasons about the tool without calling it costs nothing.
Is there a REST version of this?
Yes — the same source is available as a plain HTTPS endpoint on APIVerve, linked above. Same data, same credits, same account.