generated: '2026-08-13'
method: probed
source: https://mcp.b12.io/mcp + https://www.b12.io/pricing/
limit_count: 0
note: >-
  B12 publishes NO HTTP rate limit for its MCP surface and returns no rate-limit
  headers. limit_count is an honest zero: it counts published request-rate
  limits, and there are none. What B12 does publish is a plan-attached AI credit
  quota, recorded below as consumption quotas — those govern the product, not
  the endpoint, and an agent cannot read them at runtime.

limits: []

response_headers:
  observed: []
  x_ratelimit: false
  ratelimit_standard: false
  retry_after: false
  exhaustion_status: null
  note: >-
    A live tools/list POST to https://mcp.b12.io/mcp returned only
    cache-control, content-type, date, server (nginx/1.28.1),
    transfer-encoding and connection. No X-RateLimit-*, no RateLimit-*, no
    Retry-After. An agent has no runtime backpressure signal on this surface.

quotas:
- scope: per-account
  kind: ai-credits
  plan: Free
  limit: 5 per day, capped at 30 per month
  source: https://www.b12.io/pricing/
- scope: per-account
  kind: ai-credits
  plan: Website
  limit: 200 per month
  source: https://www.b12.io/pricing/
- scope: per-account
  kind: ai-credits
  plan: Website + Client Engagement
  limit: 300 per month
  source: https://www.b12.io/pricing/
- scope: per-account
  kind: launched-projects
  plan: Website
  limit: 20
  source: https://www.b12.io/pricing/
- scope: per-account
  kind: launched-projects
  plan: Website + Client Engagement
  limit: 30
  source: https://www.b12.io/pricing/

quota_note: >-
  These quotas bind to a signed-in B12 account. The MCP tool is called
  anonymously and returns a signup link rather than a provisioned site, so no
  quota is enforced at the point an agent calls it, and none is reported back.

x-evidence:
  fetched: '2026-08-13'
  probes:
  - url: https://mcp.b12.io/mcp
    method: POST tools/list
    http_status: 200
    headers_returned: [cache-control, content-type, date, server, transfer-encoding, connection]
  - url: https://www.b12.io/pricing/
    http_status: 200