generated: '2026-07-19'
method: searched
source: https://docs.fiddler.ai/integrations/agentic-ai-and-llm-frameworks/agentic-ai/mcp-server
signaling:
  headers:
  - X-RateLimit-Limit
  - X-RateLimit-Remaining
  - X-RateLimit-Reset
  - Retry-After
  status_on_exceed: 429
limits:
- surface: MCP server
  limit_count: 120
  window: minute
  scope: per API key
  source: https://docs.fiddler.ai/integrations/agentic-ai-and-llm-frameworks/agentic-ai/mcp-server
- surface: Guardrails free trial
  limit_count: 200
  window: day
  scope: per model per day
  source: https://www.fiddler.ai/trial
notes: >-
  The core REST API signals rate limits via standard X-RateLimit-* headers and
  returns HTTP 429 with Retry-After when exceeded. Published numeric limits are
  documented for the MCP server (120 req/min per API key) and the 14-day
  Guardrails free trial (200 API requests per model per day). Production REST API
  quotas depend on the customer deployment.