generated: '2026-08-22'
method: probed
source: https://mcp.oe.horizon.auto/mcp
limit_count: 0
note: >-
  No rate limits are published anywhere in Horizon Robotics' developer surface, and none
  are signalled at runtime. Four consecutive anonymous JSON-RPC calls to the Open Explorer
  MCP server (initialize, tools/list, resources/list, resources/read) all returned HTTP
  200 and not one response carried a rate-limit header of any family. An honest zero: the
  provider documents no quota and the edge advertises no budget, so a calling agent has no
  way to pace itself except by observing failures.
limits: []
response_headers:
  ratelimit_draft: []       # RateLimit-Limit / RateLimit-Remaining / RateLimit-Reset — none observed
  x_ratelimit: []           # X-RateLimit-* — none observed
  retry_after: false
  observed_headers:
  - server
  - date
  - content-type
  - content-length
  - x-powered-by
  - cache-control
  - req-cost-time
  - req-arrive-time
  - resp-start-time
  - x-envoy-upstream-service-time
  - x-request-id
exhaustion:
  status_code: null
  observed: false
  note: No 429 was reached or provoked; probing was deliberately light.
docs_searched:
- url: https://github.com/HorizonRobotics/OE-Skills/blob/main/README.en.md
  status: 200
  finding: install instructions only; no quota or throttling statement
- url: https://developer.horizon.auto/docs
  status: 200
  finding: toolchain documentation index; no API quota page
- url: https://doc.oe.horizon.auto/
  status: 200
  finding: OpenExplorer manual (expired TLS certificate); toolchain reference, no service limits
x-evidence:
  fetched: '2026-08-22'
  urls:
  - url: https://mcp.oe.horizon.auto/mcp
    status: 200