D grade
protocol-mismatch
80 score
200 ms
0.0% uptime over 2 measured probes
AS13335 CLOUDFLARENET - Cloudflare, Inc., US · US
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/antlr-ok/mcp
mcp first seen 2026-09-17 · last seen 2026-09-19 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| Official MCP Registry | ANTLR grammar rule count, body discarded | ANTLR grammar rule count, body discarded | io.github.sadri-dridi/antlr-ok |
| Agenstry | ANTLR grammar rule count, body discarded | mcp:io.github.sadri-dridi/antlr-ok |
Same host
a2a × 1 agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive mcp × 2340 robots × 1 · 1 alive sigdir × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/3975704"><img src="https://agentprobe.org/badge/3975704.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-18 22:04 | protocol-mismatch | 80 | 404 | HTTP/1.1 | 200 | detailscapabilities {"tools_count":30,"tools":["antlr-ok","utc-time","timezone","validate-json","normalize-url","inspect-robots","domain-shape","citation","compatibility","status-catalog","iana-zones","web-fetch","fetch-status","github-repo-shape","weather-hint","memory-key-count","file-path-ok","browser-url-ok","think-steps","search-query-len","hn-front-count","lib-docs-hint","playwright-url-ok","figma-url-shape","jira-key-shape","geo-hint","calc-eval","wiki-title-ok","agent-tool-index","people-search-index"],"tools_more":false}meta {"final_url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/antlr-ok/mcp","era":"modern","missing":"server/discover","supported_versions":[],"server_capabilities":{},"transport":"streamable-http","http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 404 | |
| 2026-09-17 21:04 | protocol-mismatch | 80 | 404 | HTTP/1.1 | 260 | detailscapabilities {"tools_count":30,"tools":["antlr-ok","utc-time","timezone","validate-json","normalize-url","inspect-robots","domain-shape","citation","compatibility","status-catalog","iana-zones","web-fetch","fetch-status","github-repo-shape","weather-hint","memory-key-count","file-path-ok","browser-url-ok","think-steps","search-query-len","hn-front-count","lib-docs-hint","playwright-url-ok","figma-url-shape","jira-key-shape","geo-hint","calc-eval","wiki-title-ok","agent-tool-index","people-search-index"],"tools_more":false}meta {"final_url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/antlr-ok/mcp","era":"modern","missing":"server/discover","supported_versions":[],"server_capabilities":{},"transport":"streamable-http","http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 404 |