vertaaux-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| PORT | No | HTTP transport port | 8787 |
| GITHUB_TOKEN | No | GitHub API access for `generate_pr` | |
| VERTAAUX_API_KEY | Yes | API authentication key | |
| VERTAAUX_API_BASE | No | API endpoint URL | https://vertaaux.ai/api/v1 |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": true
} |
| resources | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| audit_urlA | [audit] Run a full UX + a11y audit on a live URL. Returns top 5 issues + scores; use get_findings for the full list. Offline mode (localhost/file://) is static-only. |
| audit_repoA | [audit] Static UX + a11y scan of a local codebase tree (React/Vue/Svelte components, HTML templates). Detects missing alt text, unlabeled buttons/inputs/links, placeholder labels. For live pages use audit_url. |
| audit_artifactA | [audit] Audit a captured browser artifact instead of a live URL. Use for CI-run debugging or customer bug reports without re-running the browser. Supports: har (response times, failures, payloads, security headers), lighthouse (a11y + perf JSON). playwright-trace returns INVALID_PARAMS, use audit_url. |
| get_findingsA | [findings] Get findings from a completed audit with pagination + filtering by severity, rule, or change status. Use after audit_url/audit_repo/audit_artifact for detailed findings. |
| explain_findingA | [findings] Deep-dive a specific finding by ID: returns element HTML, screenshot URL, WCAG criteria, user impact, repro steps, before/after fix code. Use after audit_url to expand on a finding from get_findings. |
| suggest_fixA | [fix] PRIMARY framework-aware fix generator. Pass finding_id + audit_id to get an idiomatic search/replace patch (React/Next/Vue/Angular/Svelte/Nuxt detected via nearest package.json). Returns patch + confidence + framework_confidence + needs_human_review. Single (default) or batch (multiple finding_ids). Pipe output into generate_pr or run_verification_suite. vs generate_patch: that's the legacy issue/job ID variant. |
| generate_prA | [pr] OPENS a draft GitHub PR with N a11y patches applied ATOMICALLY via Git Trees (all-or-nothing commit). Refuses overlapping patches (CONFLICT) and unparseable JS/TS/JSX/Vue/Svelte (AST_INVALID via Babel/vue-eslint-parser/svelte/compiler gate). Inputs from suggest_fix (preferred) or generate_patch (legacy). Requires GITHUB_TOKEN; without it, set local_only=true to get patch content. Always creates DRAFT, never auto-merges. |
| run_auditA | [audit] DEPRECATED: use audit_url. Kept for legacy clients only. |
| run_llm_auditA | [audit] LLM-based UX audit of a URL via the VertaaUX provider-agnostic adapter (Mistral/OpenAI/etc.). Returns qualitative narrative on hero clarity, messaging, copy tone, conversion nudges, things rule-based audits miss. vs audit_url: that's rule-based WCAG/a11y. Consumes LLM credits, separate from audit quota. |
| get_auditA | [audit] Fetch the status and (when completed) results of an audit job by ID: status, progress 0-100, 7-category scores, issues array. Poll after audit_url/run_audit/run_llm_audit/audit_a11y with wait=false. Same ID namespace across all of them. |
| get_quotaA | [quota] Get the authenticated account's tier (free/pro), audits remaining in current billing window, reset timestamp, and feature flags. Call before batch audits to avoid mid-run quota errors. |
| get_enginesA | [quota] List audit engine versions on this account: semver-tagged releases plus a 'latest' alias and per-version release notes. Use to pin audits for reproducible deltas or discover newer analyzers. |
| analyze_componentA | [session] Static a11y + UX analysis of one component's source (HTML/JSX/Vue/Svelte/Angular). No browser, no network. Best for pre-commit feedback on a snippet. vs audit_repo: scans the whole codebase tree. vs audit_url: runs the full rule engine on a live page. |
| explain_issueA | [session] Format an INLINE audit issue object into developer-friendly guidance: WCAG explanation, user impact, code-level fix, canonical reference links. No network call. vs explain_finding: that fetches by ID from the backend; this one takes the issue literal you already have. |
| capture_screenshotA | [session] Capture a hosted screenshot of a URL plus the full audit result. CONSUMES 1 audit quota, implemented via audit_url under the hood, not a lightweight headless snapshot. Use mode='basic' for cheapest. Hints (viewport, fullPage, highlightIssues, waitForSelector) are advisory. |
| compare_competitorsA | [session] Audit your site vs N competitor URLs in parallel, return side-by-side scores + top-5 differentiators with optional industry benchmarks. Best for positioning, pitch decks, quarterly scans. vs diff_audits: that compares two existing audit IDs (free); this runs N+1 fresh audits (consumes N+1 quota). |
| generate_patchA | [fix] LEGACY issue-based fix generator (no framework detection). Returns search/replace patch + confidence + explanation. vs suggest_fix (PREFERRED): framework-aware (React/Vue/Angular/Svelte), finding-based, JSX-idiomatic patches. Use generate_patch only for legacy job_id/issue_id consumers. |
| run_verification_suiteA | [audit] PRE-deploy patch verification: test a proposed patch (search/replace + CSS selector) against a live URL in a sandboxed browser BEFORE you commit. Runs before/after axe-core, returns score delta + rule pass. vs verify_fixes: that's POST-deploy URL-vs-baseline comparison; this is patch-vs-live in isolation. |
| create_pr_commentA | [pr] Generate a PER-FILE GitHub PR comment with in-line |
| create_webhookA | [webhook] Register an HTTPS endpoint to receive audit event notifications (audit.completed, audit.failed, etc.). Outgoing requests are HMAC-SHA256-signed via your secret in |
| list_webhooksA | [webhook] List webhooks on the account: ID, URL, subscribed event types (audit.completed, audit.failed, etc.), active status, last-delivery timestamp. Use before create_webhook (avoid duplicates) or delete_webhook (look up ID). |
| delete_webhookA | [webhook] DESTRUCTIVE: permanently delete a webhook by ID; future events stop delivering. No soft-delete. Look up ID via list_webhooks. |
| create_scheduleA | [schedule] Create a recurring audit on a cron schedule. Best for daily a11y regression checks, weekly competitor diffs, post-deploy smoke audits. Returns id + next_run_at. Set alert_on_fail / alert_on_score_drop + score_threshold to trigger webhook_url + email_recipients alerts. Counts against monthly quota. |
| get_scheduleA | [schedule] Read full config of an audit schedule by ID: cron, target URL, audit mode, enabled, alerts (alert_on_fail / alert_on_score_drop + score_threshold), webhook_url, email_recipients, last/next_run_at. Look up ID via list_schedules. |
| list_schedulesA | [schedule] List all audit schedules on the account: ID, target URL, cron, mode, enabled, alert config, next_run_at. Use before update_schedule or delete_schedule to look up the ID. |
| update_scheduleA | [schedule] Partial update of an audit schedule (all fields except id are optional). Use list_schedules to look up ID. Common: pause via enabled=false, change cadence via cron_expression, add score-drop alerts. |
| delete_scheduleA | [schedule] DESTRUCTIVE: permanently delete an audit schedule by ID; future runs are cancelled. Prefer update_schedule with enabled=false to pause without losing config. Look up ID via list_schedules. |
| audit_a11yA | [a11y] Multi-engine a11y audit on a URL (axe-core + AccessLint + VertaaUX analyzers). Returns normalised WCAG findings with machine-actionable fix suggestions. Set baseline_name to save for later diff_a11y. |
| diff_a11yA | [a11y] SECONDARY a11y diff using NAMED baselines (saved earlier via audit_a11y with baseline_name). Returns regressions + fixes + unchanged + net-change summary. vs diff_audits: prefer that, works with any audit IDs, full 7-category coverage. Use diff_a11y only when you already have a named a11y baseline. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
| quick_audit | Run a quick UX audit on a URL and summarize the top issues with fix recommendations. |
| fix_accessibility | Audit a URL for accessibility issues, generate patches, and prepare a PR comment. |
| compare_ux | Compare your site against competitors and identify UX gaps. |
| monitor_regression | Set up automated monitoring for a URL with score drop alerts. |
| audit_codebase | Run static analysis on a local codebase to find accessibility issues in component code. |
| audit_and_fix_all | Run a full autonomous remediation cycle: audit a URL, generate framework-idiomatic fixes for every critical/serious finding, open a PR, and verify the fixes landed. |
| continuous_quality_gate | Compare a PR preview URL against a main-branch baseline and return a pass/block quality decision with a PR comment artifact. |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
| Guideline: Buttons | Best practices for buttons. |
| Guideline: Forms | Best practices for forms. |
| Guideline: Navigation | Best practices for navigation. |
| Guideline: Color Contrast | Best practices for color contrast. |
| Guideline: Error States | Best practices for error states. |
| Guideline: Content Clarity | Best practices for content clarity. |
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