36ms median · in‑region
Feature flags. Nothing else.
Boolean toggles at the edge. No rules engine, no dashboard bloat.
Features
On or off. That's it.
No rules engine to learn. No targeting DSL. Just booleans.
Fast everywhere
Flag checks in milliseconds, anywhere in the world.
Pay per sync, not per check
SDKs cache flags locally. You're billed for syncs, not evaluations.
One key, all products
Same account for Gate, Meter, Relay. No credential sprawl.
Try It
Feature Flags
dark_mode
beta_signup
API Response
{
"flags": {
"dark_mode": true,
"beta_signup": false
}
}API Example
Complete Workflow
# 1. Setup
export SOLENOID_KEY="sm_your_api_key_here"
# 2. Set a feature flag
curl -X POST "https://api.solenoid.systems/v1/gate" \
-H "Authorization: Bearer $SOLENOID_KEY" \
-H "Content-Type: application/json" \
-d '{"flag_id":"new_ui","enabled":true}'
# Expected response:
# {"flags":{"new_ui":true}}
# 3. Get all flags configuration
curl "https://api.solenoid.systems/v1/gate/config" \
-H "Authorization: Bearer $SOLENOID_KEY"
# Expected: {"flags":{"new_ui":true,"beta_feature":false}}
# 4. Check specific flag
curl "https://api.solenoid.systems/v1/gate/new_ui" \
-H "Authorization: Bearer $SOLENOID_KEY"
# Expected: {"flag_id":"new_ui","enabled":true}Use Cases
Gradual Rollouts
Roll out features to a percentage of users by toggling flags per cohort.
Kill Switches
Instantly disable a broken feature in production without redeploying.
Environment Separation
Different flag states for staging vs production without code changes.
A/B Testing
Toggle experimental features on/off to measure impact.
Comparison
| Feature | Solenoid Gate | LaunchDarkly | Split.io |
|---|---|---|---|
| Complexity | Boolean only | Full rules engine | Rules + ML |
| Targeting | None | Users/segments/% | Users/attributes |
| Latency | Low p99 edge | Low latency | Low latency |
| Dashboard | None (API-only) | Full-featured | Analytics-heavy |
| Pricing | $0.50/1K syncs | $8.33-$16.67/seat/mo | $33/seat/mo |
| Best for: | Simple on/off flags | Enterprise targeting | Data-driven rollouts |
Pricing as of Feb 2026 for base tiers