Is this the same as SkedCast’s developer documentation?

No — this hub links free, focused reference tools; the full REST API reference, MCP server and SDK documentation live on the separate developer docs site.

Do these tools require a SkedCast account?

No — every tool linked from this hub runs free in your browser with no sign-up required.

Where do the rate limits and posting limits come from?

From SkedCast’s own registry of real, current platform limits, the same data the product itself enforces, not a hand-typed or estimated list.

Can I test my webhook signing logic here?

Yes — the webhook signature tester computes an HMAC signature from a payload and secret and compares it to a signature you paste in, entirely client-side.

Does this hub cover SkedCast’s MCP server for AI agents?

It links to the agent prompt library and the MCP docs, but the full tool catalog and setup steps live on the dedicated AI agents and developer docs pages.

Is the publishing feature matrix here too?

Yes — it links to the post-type support matrix, which shows which post types (Stories, Reels, carousels, polls and more) each platform supports.

Free tools

Social media API tools for developers

A hub of SkedCast’s free reference tools for developers integrating social publishing — rate limits, webhook signature verification, hashtag and posting limits, media specs, and the publishing feature matrix — plus links to the real API reference, MCP server and SDK docs for building against SkedCast itself.

Social media API tools: lookups and checkers

API rate limit lookup

Real, current rate limits per platform so you can pace calls before you hit a 429.

Webhook signature tester

Verify an HMAC webhook signature against a payload and secret, entirely client-side.

Hashtag limits by platform

The real, enforced hashtag cap per platform — and which platforms enforce none.

Character and posting limits by platform

Text length caps and posting-frequency limits for every platform, in one lookup.

Video length limits by platform

Minimum and maximum video duration per platform before an upload is rejected.

Media spec checker

Check an image or video file against a platform’s real format, size and duration rules.

Publishing feature matrix

Which post types — Stories, Reels, carousels, polls, native scheduling — each platform supports.

Platform permission / scope explainer

Exactly which OAuth scope (or credential) SkedCast requests per platform, and why.

For building against SkedCast itself

The tools above are free reference lookups. To build against SkedCast’s own REST API, MCP server, or SDK, use the real developer documentation.

Developer docs (API, MCP, SDK)Agent prompts for scheduling

How to use the developer tools hub

Pick the reference you need. Each card links to one focused free tool: API rate limits, webhook signatures, hashtag and posting limits, media specs, or the publishing feature matrix.
Check a platform limit before you build against it. The limit-lookup tools show the real, current caps so you can validate input before calling a platform’s API.
Verify a webhook payload. The webhook signature tester checks an HMAC signature against a payload and secret, entirely in your browser.
Go deeper in the real docs. For SkedCast’s own REST API, MCP server and SDK, use the developer docs — these free tools are reference lookups, not API documentation.
Try SkedCast’s own MCP tools. The agent prompt library shows real example prompts against SkedCast’s documented MCP tool set.

Worked examples

Validating a caption length before publishing

Checking a 3,000-character LinkedIn caption against the posting-limits lookup before sending it to a platform’s API catches an over-length caption locally instead of failing at publish time.

Debugging a webhook integration

Pasting one received payload, its signature header, and your signing secret into the webhook signature tester confirms whether your server is verifying signatures correctly.

Developer tools FAQ

Is this the same as SkedCast’s developer documentation?: No — this hub links free, focused reference tools; the full REST API reference, MCP server and SDK documentation live on the separate developer docs site.
Do these tools require a SkedCast account?: No — every tool linked from this hub runs free in your browser with no sign-up required.
Where do the rate limits and posting limits come from?: From SkedCast’s own registry of real, current platform limits, the same data the product itself enforces, not a hand-typed or estimated list.
Can I test my webhook signing logic here?: Yes — the webhook signature tester computes an HMAC signature from a payload and secret and compares it to a signature you paste in, entirely client-side.
Does this hub cover SkedCast’s MCP server for AI agents?: It links to the agent prompt library and the MCP docs, but the full tool catalog and setup steps live on the dedicated AI agents and developer docs pages.
Is the publishing feature matrix here too?: Yes — it links to the post-type support matrix, which shows which post types (Stories, Reels, carousels, polls and more) each platform supports.

Ready to broadcast everywhere?

Sign up free — no credit card. You land on the Free plan, and you can start a one-time 7-day Studio trial from your workspace whenever you are ready. Connect your first accounts, import a batch, and watch one post fan out across every platform.

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