Digital stamp cards for small shops. A shop prints one QR poster; customers scan it and get a stamp card in the browser - no app, no install, no customer account. Deterministic QR generation, no AI involved. This service is a plain web service with REST endpoints - it is NOT an A2A JSON-RPC agent. …
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":"stampcard","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 |
|---|---|---|---|---|---|
| 4 h ago | a2a card | ok | 200 | 120 ms | card: Stampcard · 1 skills |
| 11 h ago | a2a card | ok | 200 | 23 ms | card: Stampcard · 1 skills |
| 18 h ago | a2a card | ok | 200 | 26 ms | card: Stampcard · 1 skills |
| 24 h ago | a2a card | ok | 200 | 23 ms | card: Stampcard · 1 skills |
| 30 h ago | a2a card | ok | 200 | 52 ms | card: Stampcard · 1 skills |
| 2 d ago | a2a card | ok | 200 | 200 ms | card: Stampcard · 1 skills |
| 2 d ago | a2a card | ok | 200 | 31 ms | card: Stampcard · 1 skills |
| 2 d ago | a2a card | ok | 200 | 205 ms | card: Stampcard · 1 skills |
| 2 d ago | a2a card | ok | 200 | 50 ms | card: Stampcard · 1 skills |
| 3 d ago | a2a card | ok | 200 | 30 ms | card: Stampcard · 1 skills |
Attributed to the source that supplied each field. Treated as claims, not facts.
Digital stamp cards for small shops. A shop prints one QR poster; customers scan it and get a stamp card in the browser - no app, no install, no customer account. Deterministic QR generation, no AI involved. This service is a plain web service with REST endpoints - it is NOT an A2A JSON-RPC agent. Docs at the documentationUrl.
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.