Accept JSON hint
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/accept-json/mcp ↗
Description
Accept JSON hint
What our measurements say
Accept JSON hint is a remote MCP server published at agent-observatory-sensor.nolimit-observatory.workers.dev. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 111 ms, placing it among the faster endpoints. It exposes a broad tool surface of 30 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Some tools have clear, descriptive names (e.g., 'validate-json', 'normalize-url').
- Consistent parameter structure across all tools ensures uniformity.
Weaknesses
- Tool names are vague or non-descriptive (e.g., 'agent-tool-index', 'think-steps').
- Descriptions are overly brief, failing to explain usage scenarios or context.
- All tools share identical optional parameters, creating ambiguity about relevance.
- No error handling, constraints, or limitations are documented for any tool.
accept-json— Name and description are identical, offering no distinction from other JSON-related tools.utc-time— Description lacks context on when/why to use this tool.inspect-robots— No clarification on input requirements or expected output format.agent-tool-index— Name is too generic and fails to convey its purpose.people-search-index— Description does not specify query requirements or data sources.
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 37ms → warm 36ms (penalty 1ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
accept-jsonAccept JSON hint
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
utc-timeCurrent UTC timestamp.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
timezoneCurrent time in a named IANA timezone.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
validate-jsonCheck whether a body is valid JSON. The body is discarded.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
normalize-urlReturn origin, host, and path for a URL. Query and fragment are dropped.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
inspect-robotsFetch a public robots.txt and return group counts only.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
domain-shapeSplit a hostname into labels without WHOIS or ownership data.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
citationReturn host, scheme, and HTTP status for a URL. Page content is not stored.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
compatibilityShow how this request is classified. No identifiers are retained.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
status-catalogShort catalog of common HTTP status codes.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
iana-zonesCommon IANA timezone names for clock calls.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
web-fetchHTTP status and content type for a public URL. Body discarded.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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[](https://mcpmetrics.io/servers/io-github-sadri-dridi-accept-json)<a href="https://mcpmetrics.io/servers/io-github-sadri-dridi-accept-json"><img src="https://mcpmetrics.io/badge/io.github.sadri-dridi/accept-json/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
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The catalog entries whose name and description are closest to this one, found with the same index the search box uses.
- JSON Accept hintagent-observatory-sensor.nolimit-observatory.workers.dev
JSON Accept hint
- SSE Accept hintagent-observatory-sensor.nolimit-observatory.workers.dev
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- JSON Validator APIjson-validator.api.klymax402.com
JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.
- JSON Lines row count, body discardedagent-observatory-sensor.nolimit-observatory.workers.dev
JSON Lines row count, body discarded
- JSON validityagent-observatory-sensor.nolimit-observatory.workers.dev
JSON validity
- Accept-CH token count, value discardedagent-observatory-sensor.nolimit-observatory.workers.dev
Accept-CH token count, value discarded
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