D grade
card-invalid
30 score
1555 ms
0.2 version
0.0% uptime over 5 measured probes
AS16509 AMAZON-02 - Amazon.com, Inc., US · US
https://www.promptster.dev/.well-known/ai-agent.json
a2a first seen 2026-09-07 · last seen 2026-09-11 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| Agenstry | Promptster | a2a_agent:www.promptster.dev |
Same host
agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive mcp × 1 · 1 alive robots × 1 · 1 alive sigdir × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/10441"><img src="https://agentprobe.org/badge/10441.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-11 11:24 | card-invalid | 30 | 200 | HTTP/1.1 | 1555 | 0.2 | detailscapabilities {"era":"0.3","skills_count":0,"skills":[],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://www.promptster.dev/.well-known/ai-agent.json","card":{"name":"Promptster","version":null,"provider":null,"documentationUrl":null},"missing_fields":["version","skills","defaultInputModes","defaultOutputModes"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | missing ['version', 'skills', 'defaultInputModes', 'defaultOutputModes'] |
| 2026-09-10 10:21 | card-invalid | 30 | 200 | HTTP/1.1 | 1685 | 0.2 | detailscapabilities {"era":"0.3","skills_count":0,"skills":[],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://www.promptster.dev/.well-known/ai-agent.json","card":{"name":"Promptster","version":null,"provider":null,"documentationUrl":null},"missing_fields":["version","skills","defaultInputModes","defaultOutputModes"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | missing ['version', 'skills', 'defaultInputModes', 'defaultOutputModes'] |
| 2026-09-09 09:41 | card-invalid | 30 | 200 | 2314 | 0.2 | detailscapabilities {"era":"0.3","skills_count":0,"skills":[],"streaming":null,"push_notifications":null,"security_schemes":[],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://www.promptster.dev/.well-known/ai-agent.json","card":{"name":"Promptster","version":null,"provider":null,"documentationUrl":null},"missing_fields":["version","skills","defaultInputModes","defaultOutputModes"],"vantage":"us-east-1"} | missing ['version', 'skills', 'defaultInputModes', 'defaultOutputModes'] | |
| 2026-09-08 08:39 | connect-fail | 2190 | detailsmeta {"vantage":"us-east-1"} | LocalProtocolError: Invalid input ConnectionInputs.SEND_HEADERS in state ConnectionState.CLOSED | ||||
| 2026-09-07 07:40 | connect-fail | 1131 | detailsmeta {"vantage":"us-east-1"} | h2: Invalid input ConnectionInputs.SEND_SETTINGS in state ConnectionState.CLOSED |