Ruby on Rails

require "json"
require "net/http"

uri = URI("https://api.cosmicjs.com/v3/buckets/#{ENV.fetch("BUCKET_SLUG")}/objects")
uri.query = URI.encode_www_form(
  read_key: ENV.fetch("BUCKET_READ_KEY"),
  query: { type: "posts" }.to_json,
  limit: 20
)
posts = JSON.parse(Net::HTTP.get(uri)).fetch("objects")

Writes use Authorization: Bearer and the write key. Keep both keys in the environment or Rails credentials.

FAQ

Is there a Ruby gem?

No. Use Net::HTTP or Faraday against https://api.cosmicjs.com/v3.

How is the query passed?

As a URL parameter named query whose value is JSON, for example {"type":"posts"}.

How much does Cosmic cost?

Project plans are Free ($0), Builder ($99/mo), Team ($299/mo), Business ($499/mo), Enterprise (custom pricing). Yearly billing saves 10%. Workspace plans are Small Workspace ($999/mo) and Large Workspace ($2,999/mo), and they start with a 30-day free trial. Allowances, add-on rates, and the rest of the pricing FAQ are plain text at https://www.cosmicjs.com/pricing.md.

Are API keys required, and is content private?

Each Bucket has a read key and a write key in Bucket Settings > API Access. GET requests use the read key. POST, PATCH, and DELETE use the write key as Authorization: Bearer. Do not put the write key in a browser bundle, a mobile app, or a NEXT_PUBLIC_ variable. SAML single sign-on is on Large Workspace and Enterprise. The audit log is append-only. Text versions: https://www.cosmicjs.com/security.md and https://www.cosmicjs.com/docs/dashboard/audit-log.md.

Can an agent create a Cosmic project without an existing account?

Yes. POST https://dapi.cosmicjs.com/v3/agents/sign-up provisions a free-tier project and bucket tied to a human email, with no existing Cosmic account. The human claims it with the emailed one-time code. The playbook is https://www.cosmicjs.com/docs/ai-onboarding.md.