Five capabilities
Everything a rollout needs. Five of them.
Dynamic config. AI decisions. Automatic safety nets. No 3am pages.
01 — Core
Dynamic Config API
Core REST API for flags, multi-env support, audience targeting, and percentage rollouts. Edge latency <10ms.
- ✓ REST API with SDKs for Node, Python, Go, Java, Ruby, Rust
- ✓ Multi-environment: dev, staging, prod, feature branches
- ✓ Audience rules: user ID, plan, country, custom attributes
- ✓ Percentage rollouts with sticky bucketing
- ✓ Edge evaluation — <10ms latency globally
curl https://api.upstreamapi.com/v1/flags/new-checkout-flow \
-H "Authorization: Bearer $API_KEY" \
-d '{"userId":"u_8821","attributes":{"plan":"team"}}'
# → {"enabled": true, "variant": "v2", "reason": "percentage_rollout"}
02 — Intelligence
AI Rollout Pilot
Define your SLOs. Upstream watches metrics and ramps up automatically — or pauses when something looks off.
- ✓ Define SLO targets: error rate, p95 latency, conversion delta
- ✓ AI evaluates rolling 5-minute metric windows
- ✓ Automatic ramp: 5% → 25% → 50% → 75% → 100%
- ✓ Configurable advancement thresholds per flag
- ✓ Slack + webhook notifications at every stage
03 — Safety
Anomaly Guard
Real-time anomaly detection on business and technical signals. Auto-rollback or human-review pause, based on severity.
- ✓ 1-second anomaly detection intervals
- ✓ Signals: error rate, p95 latency, checkout conversion, custom metrics
- ✓ Severity tiers: auto-rollback (high) or human-review pause (medium)
- ✓ Rollback executes in 0.2s median
- ✓ Full audit trail with "why rollback" reason attached
04 — Codebase Intelligence
Codebase Intelligence
SDK introspects your codebase, maps every flag usage, detects dead flags (unused >30d), and auto-generates docs.
05 — Copilot
Config Copilot
Ask in plain English: "which flags are active for Enterprise customers in EU?" Get answers and 1-click actions.
- ✓ Natural language flag queries in any language
- ✓ 1-click flag enable/disable from chat interface
- ✓ "Show me all flags that touched checkout in the last 7 days"
- ✓ Connects to your Codebase Intelligence graph
Integrations
Works where you work.
Start shipping safely
5 minutes to your first flag.
Free plan. No credit card. Every feature above, at smaller scale.
Get started free