Skip to content
Reading with an AI assistant?View as MarkdownOpen in ClaudeOpen in ChatGPT
SkedCast
Start free

Guides

Social media scheduler with an API: what to check

A social media scheduler with a good API lets you create, read, reschedule and cancel posts, upload media, and hear about results through signed webhooks. Before you build on one, check that it publishes an OpenAPI document, shows rate limits in headers, versions its paths with a deprecation policy, and uses scoped keys. SkedCast's API meets every check.Updated

Browse docs

7 min read

What should a social media scheduler API let you do?#

Everything you would do in the app, from code. That means the whole life of a post (create, read, change, reschedule, cancel and retry), media upload processed to each network's rules, the per-network fields a real post needs, and a way to learn the outcome, because publishing happens later than the request. A scheduler that only accepts a caption and a time is a posting form, not an API you can build a product on.

Which checks matter before you build on a scheduler API?#

CheckWhy it mattersThe standard behind it
Full post lifecycle, not just createYou need to read, reschedule and cancel what you created, not fire and forgetREST resource design
A media upload flow, not just a URL fieldProcessing images and video to each network's limits is where integrations breakPresigned uploads
Signed webhooks for publish resultsPublishing is asynchronous; you need to know when a post went out or failedStandard Webhooks, HMAC-SHA256
Per-network fields documentedTikTok privacy, a Pinterest board, a YouTube title: a generic caption field is not enoughDocumented request schema
A public OpenAPI documentGenerate a typed client and test against the contract instead of proseOpenAPI 3.1
Rate limits in response headersBack off before you are blocked instead of guessingIETF RateLimit headers, Retry-After
Safe retriesA timeout should not create the same post twiceIdempotency-Key header
A versioned path and a deprecation policyA breaking change should come with notice, not land under youPath versioning, RFC 8594 Sunset
Scoped keys or OAuthA leaked key should do no more than the integration needsOAuth 2.1, least privilege

The scheduler API checklist, with the standard each check points to.

How does a scheduled post move through an API?#

You upload the media, create the post with a time and its destinations, and get a 201 that means accepted, not published. At the scheduled time the scheduler publishes to each network, then sends a webhook for each result. Your code listens for that event instead of polling, and retries a failed destination if the event says it can.

Diagram: upload the media, create the post with a time and destinations, the scheduler publishes at that time, and a signed webhook reports each result.
From an API call to a published post.

How does SkedCast's API meet the checklist?#

CheckSkedCast
Post lifecycleCreate, read, edit a draft, and reschedule, cancel or retry each destination
MediaPresign, upload and register, processed for each network
Webhooks44 events, signed with HMAC-SHA256 and sent with the Standard Webhooks headers
Per-network fieldsEvery documented override, such as TikTok privacy or a Pinterest board
ContractA published OpenAPI 3.1 document and typed client libraries
Rate limitsRateLimit-Limit, RateLimit-Remaining and RateLimit-Reset on every response; Retry-After on a 429
RetriesIdempotency-Key on writes: the same key runs once or returns the first result
Versioning/v1 paths; breaking changes announced 90 days ahead with Deprecation and Sunset headers
AccessScoped API keys and OAuth 2.1 for third-party apps

SkedCast's public API, from the API reference and changelog.

Which SkedCast plans include the API?#

API keys and the REST API are included from Studio, and MCP access for AI clients from Solo. See the pricing page for the current plans. Signed webhooks start on Studio. Start with the 5-minute quickstart, see the rate limits and webhooks pages, or read the full API reference.

What should you ask a vendor before you commit?#

  • Does the documentation show real request and response bodies, or only endpoint names?
  • Can you get a webhook the moment a post publishes or fails, and is it signed?
  • Which headers tell you your rate-limit budget, and what happens on a 429?
  • How much notice do you get before a breaking change, and where is it announced?
  • Can you create a key that only reads, or only schedules?

Sources#

OpenAPI Specification 3.1, Standard Webhooks, IETF RateLimit header fields for HTTP, IETF Idempotency-Key HTTP header field, RFC 8594, The Sunset HTTP header field and The OAuth 2.1 Authorization Framework. SkedCast's figures come from its API reference and changelog, 6 November 2026.

apischedulerdevelopercomparisonsocial media scheduler with api

FAQ

What should a scheduler's API cover besides creating posts?
Reading, rescheduling and canceling posts, media upload, webhooks for publish results, and the per-network fields. The checklist above lists each one.
Why does a scheduler API need webhooks?
Publishing is asynchronous. A 201 response means the post was accepted, not that it has published, so you need a webhook or a poll to learn the outcome.
How do I avoid creating the same post twice?
Send an Idempotency-Key with each write and reuse it on a retry. SkedCast runs the request once and returns the first result for the same key.
How do I know my rate limit?
Read the RateLimit-* headers on each response and wait for Retry-After on a 429, rather than hard-coding a delay.
Does SkedCast have a social media scheduling API?
Yes. A REST API with an OpenAPI 3.1 document, signed webhooks, scoped keys and OAuth 2.1, plus an MCP server for AI clients.
Will a SkedCast API change break my integration?
Breaking changes to /v1 are announced at least 90 days ahead in the changelog and through Deprecation and Sunset headers on the affected route.

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.

Start freeLog in to your console