generated: '2026-08-23'
method: searched
source: https://prolonlife.com/llms.txt
description: >-
  L-Nutra's agent instruction document states that the MCP endpoint is rate-limited per IP and that
  agents should back off on HTTP 429, but publishes no number, window or burst. A live tools/list
  response returned no RateLimit-*, X-RateLimit-* or Retry-After header, so an agent has no runtime
  signal to read — only the instruction to retry after it has already been refused.
limit_count: 0
limits: []
signaling:
  status_code_on_exhaustion: 429
  headers_returned: []
  headers_observed_on_200: [x-request-id, x-shopify-ucp-mcp-api-version]
  retry_guidance: 'Back off on 429 responses.'
scope: per-IP
endpoints:
- https://prolonlife.com/api/ucp/mcp
- https://l-nutrahealth.com/api/ucp/mcp
- https://l-nutraprofessional.com/api/ucp/mcp
note: >-
  Honest zero: rate limiting is acknowledged in prose but no quantified limit is published anywhere
  on an L-Nutra host, and no header exposes the remaining budget at runtime.