400+ data APIs for agents: UK companies, property, trade, tenders, recalls, sanctions. Free tier
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":"fourzerotwo","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.
Not distributed through a package registry we index.
| when | check | result | http | latency | detail |
|---|---|---|---|---|---|
| 2 h ago | mcp initialize | ok | 200 | 153 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 9 h ago | mcp initialize | ok | 200 | 222 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 16 h ago | mcp initialize | ok | 200 | 196 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 24 h ago | mcp initialize | ok | 200 | 132 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 31 h ago | mcp initialize | ok | 200 | 203 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 2 d ago | mcp initialize | ok | 200 | 181 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 2 d ago | mcp initialize | ok | 200 | 169 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 2 d ago | mcp initialize | ok | 200 | 119 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 2 d ago | mcp initialize | ok | 200 | 201 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
| 3 d ago | mcp initialize | ok | 200 | 255 ms | server fourzerotwo 1.1.0 · protocol 2025-06-18 · 3 tools |
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.