Resend
Resend is wiring itself into every agent runtime it can reach, and now adding the controls to stop a send.
Comparison · Infra & APIs
Jaeger vs Knock
A side-by-side editorial comparison of Jaeger and Knock — release velocity, themes, recent moves, and the top alternatives to consider.
Jaeger vs Knock: at a glance
| Feature | Jaeger | Knock |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 3.8 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | mcp, trace-summaries, elasticsearch, clickhouse | notifications, developer-infrastructure, rbac, workflow-automation |
| Last editorial update | 15d ago | 14h ago |
| Website | Visit → | — |
What is Jaeger?
Jaeger folds its MCP server into the query service and drops Elasticsearch 6
Jaeger's 2.x line is releasing roughly monthly, and two threads dominate. The storage layer is being modernised and pruned — Elasticsearch 6 support removed, rotation and index-cleaner feature gates promoted to beta, ClickHouse gaining TLS and analyzer fixes, configurable max trace duration. The other thread is the query surface: a lightweight trace-summaries endpoint added in 2.19 then given a native Elasticsearch implementation in 2.20, and the MCP extension merged into the query extension.
What is Knock?
Knock is hardening for enterprise buyers while its agent takes over the analysis work.
Knock ships weekly, in small, legible increments across three lanes: account governance (custom roles, passkeys), workflow primitives (wait-for-event, branch rebasing), and data ingress (Amplitude, Clay). The newest entry adds granular custom roles, which closes the last obvious gap in account-level access control. Alongside that, the in-product agent gained analytics, letting teams interrogate delivery performance without building reports.
Jaeger vs Knock: editorial side-by-side
Jaeger
3.8INFRA · APIS
Jaeger folds its MCP server into the query service and drops Elasticsearch 6
◆ Current state
Jaeger's 2.x line is releasing roughly monthly, and two threads dominate. The storage layer is being modernised and pruned — Elasticsearch 6 support removed, rotation and index-cleaner feature gates promoted to beta, ClickHouse gaining TLS and analyzer fixes, configurable max trace duration. The other thread is the query surface: a lightweight trace-summaries endpoint added in 2.19 then given a native Elasticsearch implementation in 2.20, and the MCP extension merged into the query extension.
◆ Where it's heading
Jaeger is treating machine consumption of traces as a first-class query path rather than an add-on. Merging jaegermcp into jaegerquery means the MCP surface ships wherever query ships, and trace summaries give both the UI and any agent a cheap way to scan results before pulling full traces. On storage, the direction is fewer supported backends maintained better, with ClickHouse steadily gaining parity.
◆ Prediction
Expect the trace-summaries path to become the default for search across storage backends, and further ClickHouse feature work as the Elasticsearch surface is trimmed rather than extended.
Knock
6.3INFRA · APIS
Knock is hardening for enterprise buyers while its agent takes over the analysis work.
◆ Current state
Knock ships weekly, in small, legible increments across three lanes: account governance (custom roles, passkeys), workflow primitives (wait-for-event, branch rebasing), and data ingress (Amplitude, Clay). The newest entry adds granular custom roles, which closes the last obvious gap in account-level access control. Alongside that, the in-product agent gained analytics, letting teams interrogate delivery performance without building reports.
◆ Where it's heading
Two arcs run in parallel. The infrastructure lane is buying enterprise credibility — roles, passkeys, audit-grade permissions — the checklist items that decide procurement rather than daily use. The data lane keeps widening what can trigger a workflow: product analytics from Amplitude, enriched rows from Clay, internal Slack channels as a destination. Together they push Knock from a notification API toward the messaging control plane, with the agent as the layer that explains what the plane did.
◆ Prediction
Expect the roles work to continue into audit logs or scoped API keys, since granular permissions without an activity trail is an incomplete enterprise story. More data sources are likely on the same cadence, with the CRM and warehouse categories the obvious remaining gaps.
Alternatives to Jaeger and Knock
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Jaeger or Knock.
DNSControl
DNSControl v5 is feature-frozen with a ship date, and rc9 is pure provider cleanup
Casdoor
Casdoor is spending its release cadence moving auth checks from the client to the server
ESPHome
ESPHome ships on a calendar, and the August beta train is now five builds deep
Strimzi
Strimzi's 1.2.0 candidate closes with a logging fix and nothing else
Prowler
Prowler's assistant decides what to do with findings; the patches keep the scanner honest
See all Jaeger alternatives → · See all Knock alternatives →
Recent activity from Jaeger and Knock
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoKnockCustom roles and permissions
- 6d agoKnockPower internal Slack alerts
- 7d agoKnockCategory + tag management
- 13d agoKnockAmplitude data source
- 20d agoKnockAnalytics in the Knock agent ⚡
- 21d agoKnockWait for event function
- 1mo agoJaegerMCP merges into the query service; Elasticsearch 6 support removed ⚡
- 2mo agoJaegerLightweight trace-summaries endpoint arrives in the v3 API
- 3mo agoJaegerHeader forwarding to storage backends and UI base-path autodetection
- 4mo agoJaegerClock-skew and jitter fixes; metrics storage exposed to the UI
- 5mo agoJaegerLegacy remote-sampling response format removed; Go 1.25.7 required
- 6mo agoJaegerPatch: default span kind in operations endpoint
Frequently asked questions
What is the difference between Jaeger and Knock?
They serve adjacent needs but don't currently overlap on shipped themes. Knock is currently shipping more aggressively (velocity 6.3 vs 3.8), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Jaeger better than Knock?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Knock is currently shipping more aggressively (velocity 6.3 vs 3.8), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Jaeger?
Top Jaeger alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jaeger alternatives" section above for the current picks, or visit /alternatives/jaeger for the full list with editorial commentary on each.
What are the best alternatives to Knock?
Top Knock alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Knock alternatives" section above for the current picks, or visit /alternatives/knock for the full list with editorial commentary on each.