linktree-common-errors

Testing & Quality

Diagnose and fix Linktree common errors. Trigger: "linktree error", "fix linktree", "debug linktree".

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Source SKILL.md: https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/HEAD/plugins/saas-packs/linktree-pack/skills/linktree-common-errors/SKILL.md

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Linktree Common Errors

Overview

Linktree's API manages link-in-bio profiles, individual links, appearance settings, and analytics. Common integration errors include URL validation failures when adding links with unsupported schemes, profile-not-found errors from incorrect username lookups, and analytics data lag that causes empty responses for recently created links. Analytics data lags 15-30 minutes behind real-time, which frequently causes confusion when verifying newly created links. This reference covers HTTP errors, link management issues, and analytics-specific quirks that affect Linktree API consumers.

Error Reference

Code	Message	Cause	Fix
`400`	`Invalid URL format`	Link URL missing scheme or malformed	Ensure URLs include `https://` prefix and pass URL validation
`401`	`Authentication failed`	API key invalid or expired	Regenerate key at linktr.ee developer portal
`403`	`Plan feature restricted`	Endpoint requires Pro/Premium plan	Upgrade plan or use alternative endpoint for free tier
`404`	`Profile not found`	Username does not exist or is deactivated	Verify username spelling; check profile is active
`404`	`Link not found`	Link ID deleted or belongs to another profile	List links first to confirm valid IDs
`409`	`Duplicate link`	Same URL already exists on profile	Check existing links before adding; update instead of create
`422`	`Validation error`	Title too long or thumbnail URL invalid	Title max 100 chars; thumbnail must be valid image URL
`429`	`Rate limited`	Exceeded 100 requests/minute	Implement exponential backoff; check `Retry-After` header

Error Handler

interface LinktreeError {
  code: number;
  message: string;
  category: "auth" | "rate_limit" | "validation" | "not_found";
}

function classifyLinktreeError(status: number, body: string): LinktreeError {
  if (status === 401 || status === 403) {
    return { code: status, message: body, category: "auth" };
  }
  if (status === 429) {
    return { code: 429, message: "Rate limited", category: "rate_limit" };
  }
  if (status === 404) {
    return { code: 404, message: body, category: "not_found" };
  }
  return { code: status, message: body, category: "validation" };
}

Debugging Guide

Authentication Errors

Linktree API keys are passed via Authorization: Bearer header. Keys are scoped per account, not per profile. A 403 may indicate a plan-level restriction rather than a credentials issue -- verify the endpoint is available on your current plan tier before regenerating the key. Free-tier keys cannot access analytics or appearance customization endpoints.

Rate Limit Errors

The API enforces 100 requests/minute per key. Batch link creation using array endpoints when available. Analytics endpoints have stricter limits (30/min). Use the Retry-After header value and implement exponential backoff starting at 1 second.

Validation Errors

Link URLs must include the https:// or http:// scheme. Custom schemes (e.g., mailto:, tel:) are not supported via API. Titles are capped at 100 characters. Thumbnail URLs must resolve to valid image formats (PNG, JPG, GIF). Profile appearance updates fail silently if the theme ID does not exist -- validate theme availability first.

Error Handling

Scenario	Pattern	Recovery
Link validation fails	URL missing scheme	Prepend `https://` and retry
Analytics returns empty	Data not yet available	Analytics lag 15-30 min; retry after delay
Profile lookup fails	Username typo or deactivated	Search by email if available; confirm active status
Duplicate link on create	Same URL already on profile	Fetch existing links, update instead of create
Bulk link import partial failure	Some URLs invalid	Parse error array, fix URLs, retry failed items

Quick Diagnostic

# Verify API connectivity and key validity
curl -s -o /dev/null -w "%{http_code}" \
  -H "Authorization: Bearer $LINKTREE_API_KEY" \
  https://api.linktr.ee/v1/profile

Resources

Next Steps

See linktree-debug-bundle.