Apostle API and developer resources

Apostle is a brand studio in Nashville, TN. The Apostle Content API gives agents and developers programmatic, read-only access to Apostle's organization profile, service offerings, and client case studies.

Onboarding

Free and self-serve. No API key, no account, no sandbox needed — every endpoint is a public HTTPS GET that returns JSON. Start with the index and follow the URLs it returns.

Authentication

None. Do not send an Authorization header; it is ignored.

Base URLs

Apostle MCP server

Apostle publishes a Model Context Protocol server over Streamable HTTP, so Claude, ChatGPT, and other agents can call the API natively. No authentication.

Rate limits

The static documents are unmetered. The live API allows 120 requests per 60 seconds per client IP and returns RateLimit-Limit, RateLimit-Remaining, RateLimit-Reset, and RateLimit-Policy on every response. Exceeding the quota returns 429 with Retry-After in seconds and the JSON error envelope (code: rate_limited).

Versioning and deprecation

The API is versioned in the URL path (/api/v1/) and every live response carries X-API-Version. Additive changes ship inside v1; breaking changes ship as /api/v2/ while v1 keeps responding. A version scheduled for removal returns Deprecation and Sunset headers with at least 180 days of notice. Machine-readable policy: /api/v1/versioning.json.

CLI

Apostle does not publish an official CLI tool. Every endpoint is a plain GET, so curl plus jq covers scripted use, and the MCP server above covers agents.

Machine-readable specs

Endpoints

operationIdRequestReturns
getApiIndexGET /api/v1/index.jsonIndex of endpoints, spec URL, error contract.
getOrganizationGET /api/v1/organization.jsonName, description, email, contact URL, location.
listServicesGET /api/v1/services.jsonEngagement types with summaries and page URLs.
listCaseStudiesGET /api/v1/case-studies.jsonListed case studies with client, scope, industry, tags.
getCaseStudyGET /api/v1/case-studies/{slug}.jsonOne case study document.
getErrorContractGET /api/v1/errors.jsonCanonical JSON error envelope and codes.
getVersioningPolicyGET /api/v1/versioning.jsonVersioning and deprecation policy.

Example request

curl -s https://apostle.company/api/v1/case-studies.json
{
  "count": 7,
  "data": [
    {
      "slug": "district",
      "title": "District",
      "client": "District",
      "industry": "Hospitality",
      "url": "https://apostle.company/case-studies/district"
    }
  ]
}

Errors

Errors use a single JSON envelope with a stable code and a resolution hint:

{
  "error": {
    "code": "not_found",
    "message": "The requested resource does not exist in the Apostle Content API.",
    "status": 404,
    "resolution": "Fetch https://apostle.company/api/v1/index.json for the list of valid endpoints.",
    "documentation": "https://apostle.company/api"
  }
}

See /api/v1/errors.json for the full contract.

Working with Apostle

There is no write API. To start an engagement, send the user to apostle.company/contact or email hello@apostle.company with company, desired outcome, timeline, and budget range.

Apostle homepage