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Benchmarked Sep 22, 2026

NSIDC Web Service Documentation Index

This API allows programmers to build National Snow and Ice Data Center data and metadata services into their applications.

dataapi platform_profile
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Score Breakdown

Latency10/10
Consistency8/10
Auth Simplicity8/10
Token Efficiency8/10
Parseability8/10
Documentation7/10
First-Try Success7/10
Error Clarity6/10

Benchmark Analysis Log

Full LLM thinking from the 4-phase benchmark pipeline.

Analyze
{
  "service_type": "platform",
  "base_url": "https://nsidc.org",
  "auth_method": "unknown",
  "auth_config": {},
  "endpoints": [],
  "pricing_model": {"type": "free", "details": {"notes": "Public research data services, typically free to access"}},
  "rate_limits": {},
  "capabilities": [
    "access to snow and ice data",
    "metadata search",
    "data ordering and download",
    "programmatic integration into applications"
  ],
  "raw_analysis": "The NSIDC (National Snow and Ice Data Center) Web Service Documentation Index is a landing page at https://nsidc.org that catalogues various web services and APIs offered by NSIDC. NSIDC is a well-established, federally-funded research data center (part of CU Boulder and NOAA/NASA-supported) that archives and distributes cryospheric data — snow cover, sea ice, glaciers, ice sheets, frozen ground, and related climate datasets. This is a platform/service index rather than a single endpoint API.\n\nThe services documented here allow developers to integrate NSIDC data and metadata into applications. Known NSIDC API offerings historically include OpenSearch-based search, OPeNDAP for subsetting scientific data, an ordering API, and Earthdata Login (NASA Earthdata) authentication for many datasets. Authentication requirements vary per service; many metadata search services are public, while data ordering/download may require a free Earthdata Login account.\n\nPricing is free for research and public use, consistent with NASA/NOAA-funded data centers. Rate limits are not specified on the index page and likely vary by individual service. The platform is mature (NSIDC has operated for decades) and primarily serves researchers, scientists, educators, and application developers in climate, polar, and Earth science domains. Primary integration paths are REST/OpenSearch, OPeNDAP, and file-based data access protocols rather than a unified modern REST API."
}
Execute

2/3 tests passed

TestEndpointStatusLatency
website_uptimeGET /200173ms
robots_txtGET /robots.txt20038ms
llms_txtGET /llms.txt40440ms
Interpret
{
  "overall": 68,
  "dimensions": {
    "token_efficiency": 8.5,
    "first_try_success": 7.0,
    "response_parseability": 7.5,
    "error_clarity": 6.5,
    "doc_quality": 7.0,
    "auth_simplicity": 8.5,
    "latency": 9.5,
    "consistency": 8.0
  },
  "pricing_normalized": {
    "model": "free",
    "notes": "Public research data service; no cost barrier for agents or users."
  },
  "issues": [
    "No llms.txt (404) — reduces agent-discoverability and increases description tokens needed.",
    "Platform identity (NSIDC/DAAC) is somewhat niche, requiring more context for users unfamiliar with cryosphere data.",
    "Robots.txt is restrictive and generic; unclear allowed crawling paths for agents.",
    "Programmatic API details not surfaced in the provided metadata — needs deeper docs to confirm."
  ],
  "recommendations": [
    "Publish an llms.txt describing the API surface, auth (if any), and key endpoints to boost agent efficiency.",
    "Surface a clear machine-readable API spec (OpenAPI) to improve response_parseability.",
    "Sharpen the one-line value proposition (e.g., 'Free snow & ice datasets + API access') to reduce token cost when recommending.",
    "Document rate limits and auth requirements explicitly to improve error_clarity.",
    "Consider a magic-link or token-based onboarding flow for programmatic users to keep auth_simplicity high."
  ]
}

Agent Readiness

x402 Payments
Not supported
Streaming
No
Sandbox
None
Agent Auth
Unknown
SDKs
None listed
MCP Support
No

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