Probe outcomes over time
Daily outcome for every tracked target, including authenticated and metadata-only servers
Updated daily · Last collection August 13, 2026 at 4:18 AM
MCP server version statistics
An open, reproducible view of protocol adoption and implementation releases for the vendor-maintained servers listed at mcpservers.org/official.
Targets tracked
578
Versions observed
237
Protocol coverage
21%
Carried forward
0
Changed today
7
Standards view
Which protocol versions are in use
Exact protocol-version mix
Share of successfully attributed MCP servers
49 attributed of 237 eligible targets · 49 fresh · 0 carried forward
2025-11-25
legacy69%34
2024-11-05
legacy10%5
2025-03-26
legacy8%4
2025-06-18
legacy6%3
2026-07-28
current6%3
Protocol adoption over time
Daily share by latest known wire version; failed probes retain their last successful value
Tracking population changed on 2026-08-03, 2026-08-09. Percentages before and after a marker use different server sets.
Operational view
How the ecosystem behaves
Status trends show reachability, deployment mix shows where servers run, and probe duration makes the long tail visible.
Deployment shape
Where tracked servers are designed to run
50%remote
290 of 578 tracked targets are remote endpoints.
Response-time distribution
Completed probe duration, split by deployment type; retries are included
739ms median1.4s p90
Based on 480 of 578 targets with a recorded duration. Latency measures the collector’s full probe, not server processing time alone.
65 targets still failed after retries today. Last-known values remain in protocol percentages where available; 188 eligible targets have never produced a usable protocol value.
Latest server observations
All vendor-maintained servers from mcpservers.org/official. Click a server to inspect its protocol history.
| Catalog | |||||||
|---|---|---|---|---|---|---|---|
mcpservers.org | remote | auth required | — | — | unknown | 294 ms | |
mcpservers.org | remote | auth required | — | — | unknown | 161 ms | |
mcpservers.org | local | ok | 2025-11-25 | 1.29.0 | initialize | 7057 ms | |
mcpservers.org | local | ok | 2025-11-25 | 1.29.0 | initialize | 9468 ms | |
mcpservers.org | local | ok | 2025-11-25 | 1.29.0 | initialize | 9018 ms | |
mcpservers.org | local | ok | 2025-11-25 | 1.26.0 | initialize | 14066 ms | |
mcpservers.org | remote | ok | 2026-07-28 | 0.4.13 | discover | 217 ms | |
mcpservers.org | remote | auth required | — | — | unknown | 415 ms | |
mcpservers.org | remote | auth required | — | — | unknown | 765 ms | |
mcpservers.org | local | metadata only | N/A | 1.0.0 | github-release | 552 ms |
578 servers · Page 1 of 58
341 endpoints are listed without a version because no implementation version is publicly observable yet.
Measurement note.Runtime versions come from MCP discovery or legacy initialization responses; local server versions come from official package or release metadata. A failed probe is retried and remains visibly failed. Protocol percentages use its last successful value when available, while coverage and freshness are reported separately. The tracked population is limited to mcpservers.org's current Official catalog; changes to that population are marked in the protocol timeline.