API · MCP · Schema v1.0

Query a domain's structural gate result.

The same structural signal that powers the audit — reachability, legibility, content type, and the derived gate result — callable over REST and MCP. Bands only. No fabricated scores.

Authentication

Get an API key

Pass it as a bearer token: Authorization: Bearer ak_live_…

REST

Classify a domain

curl https://aater.ai/api/v1/classify/stripe.com \
  -H "Authorization: Bearer ak_live_…"

Response — schema-locked v1.0:

{
  "schema_version": "1.0",
  "domain": "stripe.com",
  "gates": {
    "reachability": "pass",
    "legibility": "structured",
    "contentType": "informational"
  },
  "bottleneck": null,
  "impact": "All gates pass. No structural barrier to AI extraction.",
  "classified_at": "2026-06-02T12:00:00Z",
  "report_url": "https://aater.ai/score/stripe.com"
}

Three gates are evaluated in order: Reachability — can AI crawlers and fetchers reach the domain? Legibility — can AI extract structured, meaningful content? Content Type — what kind of content does the domain surface to AI systems? When a gate fails, bottleneck names it and detail explains why. Results are cached aggressively; a fresh audit runs only when a domain has never been classified.

Limits

Rate limits

Tier

Plan

Monthly

Burst

Free

Classify

25 requests

60 / min

Observe

500 requests

60 / min

Certify

1,500 requests

60 / min

Exceeding the monthly quota returns 429 quota_exceeded.X-RateLimit-Remaining is returned on every call.

MCP

For AI agents

Agents can query a domain's structural gate result before they cite, recommend, or extract from it. Add the server to any MCP-compatible client:

{
  "mcpServers": {
    "aater-ai": { "url": "https://aater.ai/api/mcp" }
  }
}

Tools: classify_domain · get_classification · install_pulse.