D grade
protocol-mismatch
80 score
230 ms
1.0 version
0.0% uptime over 6 measured probes
AS16509 AMAZON-02 - Amazon.com, Inc., US · US
https://agents.sayerandstone.com/
a2a first seen 2026-09-17 · last seen 2026-09-22 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| agent-tools.cloud | Sayer & Stone | Lab-grown diamond fine jewelry, made to order and sold direct to agents. Built to be layered and lived in. | a2a:sayer-stone |
Same host
a2a × 1 agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive robots × 1 sigdir × 1 x402 × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/3956309"><img src="https://agentprobe.org/badge/3956309.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-22 16:05 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 230 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-21 16:01 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 384 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-20 15:04 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 432 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-19 14:02 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 816 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-18 13:04 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 682 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-17 13:04 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 412 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["jewelry-purchase"],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://agents.sayerandstone.com/.well-known/agent-card.json","card":{"name":"Sayer & Stone","version":"1.0.0","provider":null,"documentationUrl":"https://agents.sayerandstone.com/llms.txt"},"missing_fields":[],"endpoint_url":"https://agents.sayerandstone.com","binding":"HTTP+JSON","endpoint_status":404,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 404 |