WebRef (paid)
Web standards and time reference for agents: HTTP codes, retries, deadlines. Paid via x402.
| Endpoint | https://webref.johnaio281.workers.dev/mcp (streamable-http) |
|---|---|
| Registry version | 1.5.0 |
| Now | 14 tools · grade B (86) · pin ts_289689f1e55c5fe2a08b78349d5adb8b · protocol 2025-06-18 |
| First / last listed | 2026-10-25 03:35 UTC / 2026-10-25 03:35 UTC |
| Grade over time | 2026-10-25: B (86), 14 tools |
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Tools: http_status status_for_situation retry_advice mime_type list_mime_types content_type_advice http_method time_until describe_instant weekday_of business_days_between add_duration convert_duration unix_time
http_status | Look up an HTTP status code: what it means, what the client must do, whether it is retryable, whether it is safe to replay, the defining RFC and the common causes. ($0.003 per call) params: code*, detail |
status_for_situation | Find the HTTP status code that matches a described situation, when the code is not known in advance — for example 'the caller is being rate limited' or 'upstream returned garbage'. ($0.005 per call) params: situation* |
retry_advice | Decide how a client should react to a status code: retry with backoff, check the outcome before retrying, or do not retry. Includes a suggested backoff schedule. ($0.005 per call) params: code*, idempotent |
mime_type | Look up a MIME type by full type or by file extension: the top-level type, what it is for, and the usual file extension. ($0.003 per call) params: type, extension |
list_mime_types | List or search MIME types by top-level type or by keyword, for example image types or anything to do with calendars. ($0.003 per call) params: query, topLevel, limit |
content_type_advice | Check whether a Content-Type header matches what an endpoint kind expects, and say what to send instead when it does not. ($0.003 per call) params: contentType*, endpointKind* |
http_method | Describe an HTTP method: whether it is safe, whether it is idempotent, whether it carries a body, and what it is for. ($0.003 per call) params: method* |
time_until | How much time is between two instants: the direction, the total in every unit, and a day/hour/minute/second breakdown. Use it to compute a retry delay, a rate-limit reset, or whether a deadline has passed. ($0.003 per call) params: from*, to* |
describe_instant | Describe an instant: its date, weekday and time in UTC and in Tehran local time (UTC+03:30), plus the Unix timestamp. Use it when a response carries a timestamp and the local date matters. ($0.003 per call) params: at*, timezone |
weekday_of | Which day of the week a date falls on, and whether it is a business day. Use it before scheduling work or setting a deadline that lands on a weekend. ($0.003 per call) params: date*, weekStartsOn |
business_days_between | Count the business days between two dates, excluding weekends. Use it to turn a calendar deadline into a working-day deadline. Public holidays are not excluded, so the count is an upper bound. ($0.005 per call) params: from*, to* |
add_duration | Add a duration to an instant and get the result, in UTC and in Tehran local time. Use it for a TTL, a lock expiry, or a token lifetime. ($0.003 per call) params: at*, amount*, unit |
convert_duration | Convert a duration between units and get it in plain language. Use it to express a timeout in the unit the caller asked for, or to check whether a limit is seconds, minutes or milliseconds. ($0.003 per call) params: value*, from, to |
unix_time | Convert between a date and a Unix timestamp, in either direction. Use it when a payload carries one and the other is needed. ($0.003 per call) params: date, timestamp |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.