Media

Ayrshare MCP — Media (validation)

There is one media tool: mcp__ayrshare__validate_media. It HEAD-checks that a media URL is reachable and reports the content type, so you can confirm an image/video URL is usable before attaching it to a post.

The key concept — Ayrshare MCP does not store media. There is no upload, no media library, and no resize tool. You reference media by its public URL in a post's mediaUrls array (see ../post/SKILL.md). validate_media is how you check that URL is reachable and the right content type before posting. There is no upload/list/resize step.

If a user asks to "upload", "store in the library", or "resize for Instagram": there is no MCP tool for that. The agent must obtain a publicly hosted URL (e.g. on the user's CDN, S3, or any public host) at the correct dimensions, validate it, then attach the URL to the post. Route the user to supply a hosted URL.

• API base (REST endpoint the tool wraps): https://api.ayrshare.com/api
• Media is referenced by URL in a post's mediaUrls array — see ../post/SKILL.md.

Function table

Tool	Purpose	Method + Endpoint	Required inputs	Optional inputs
mcp__ayrshare__validate_media	HEAD-check that a media URL is reachable and report its content type, before using it in a post	POST /media/urlExists	mediaUrl (a single media URL string)	— (none)

Per-platform media constraints to check before posting (dimensions, aspect ratios, size, duration) are in references/limits.md. Example payloads are in references/examples.md.

Auth note

validate_media only HEAD-checks that a media URL is reachable, so it is effectively profile-agnostic, and it does not take a profileKey argument (it is one of the few tools excluded from per-call profile selection). The Business API key (HTTP Bearer) is configured when the MCP server is installed; see ../getting-started/SKILL.md for installation, the full auth model, and Which tools accept profileKey.

Usage guidance

• The reliable sequence before a post with media: (1) obtain a publicly reachable URL for the media (the user's CDN/S3/any public host) — there is no upload tool; (2) call mcp__ayrshare__validate_media with that mediaUrl to confirm it's reachable and the content type is what you expect; (3) pass the validated URL(s) into mcp__ayrshare__create_post's mediaUrls. Validating first turns a post-time failure into a clear, early error.
• validate_media answers "will this URL work at all" — is it reachable, and is it the content type you expect. It does not transform, resize, or store the media.
• No resize tool — supply correctly-sized media by URL. Each network has different dimension/aspect-ratio requirements (see references/limits.md). The agent must supply media already sized for each target platform; the MCP cannot resize. If a post targets several networks with conflicting requirements, host the correctly-sized variant for each and attach the right URL per platform.

Gotchas

• Validate BEFORE posting. The most common media failure is a bad or unreachable URL surfacing only when mcp__ayrshare__create_post runs. Run mcp__ayrshare__validate_media first to catch it early; a post referencing a URL that 404s or is the wrong content type will fail.
• No upload / no library / no resize. The MCP only validates a URL. If the user wants media "uploaded", "stored", or "resized", explain there is no such tool — they must host the media at a public URL (at the right dimensions) and reference it by URL. Don't claim media was uploaded or resized.
• Constraints are per-platform — there is no resize tool to fix them. Each network has different dimension/aspect-ratio/size/duration requirements (e.g. Instagram square/portrait vs an X landscape image vs a 9:16 story). One asset is rarely valid everywhere. Check references/limits.md and supply a correctly-sized URL per target platform.
• Media must be reachable before create_post references it. Don't put an unvalidated URL in mediaUrls. Confirm with validate_media first, then reference that URL (cross-link: ../post/SKILL.md).
• validate_media takes no profileKey argument (it only checks a URL, so it is one of the few tools excluded from per-call profile selection). The profile-scoped tools do accept a profileKey argument (see getting-started).
• On failure, explain — don't auto-retry. When validate_media reports an unreachable or wrong-type URL, surface that to the user (and use mcp__ayrshare__explain_error if a numeric error code came back) rather than auto-retrying. A 4xx means the URL is unreachable, the wrong type, or the API key is wrong; fix the input, don't loop. A 429 gets at most one retry after a short delay. (Mirror of the global retry-safety rule — full version in getting-started.)