Real public holiday lookup for 206 countries via a rule-based calendar engine. Paid via x402.
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"lookup-holiday","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
No successful checks in the window.
Not distributed through a package registry we index.
| when | check | result | http | latency | detail |
|---|---|---|---|---|---|
| 5 d ago | mcp initialize | failed | 404 | 19 ms | http 404 |
| 12 d ago | mcp initialize | failed | 404 | 10 ms | http 404 |
| 19 d ago | mcp initialize | failed | 404 | 38 ms | http 404 |
| 26 d ago | mcp initialize | failed | 404 | 11 ms | http 404 |
| 1 mo ago | mcp initialize | failed | 404 | 14 ms | http 404 |
| 1 mo ago | mcp initialize | failed | 404 | 8 ms | http 404 |
| 1 mo ago | mcp initialize | failed | 404 | 13 ms | http 404 |
| 1 mo ago | mcp initialize | failed | 404 | 30 ms | http 404 |
| 1 mo ago | mcp initialize | failed | 404 | 42 ms | http 404 |
| 1 mo ago | mcp initialize | ok | 200 | 479 ms | server lookup-holiday 1.0.0 · protocol 2025-06-18 · 1 tools |
No hidden text found in the tool definitions.
Text a person reading a tool definition does not see and a model does. Invisible characters can be pasted in by accident; this says what is there, not why. Covers tools only, not prompts or resources.
Attributed to the source that supplied each field. Treated as claims, not facts.
No long description beyond the summary.
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
Every source is kept verbatim. Field changes are logged as events.