DEVELOPER
API
RESTful and GraphQL interfaces for every metric. Ingest events, query dashboards, manage alerts, and export reports — all with sub-100ms response times.
REST
& GraphQL
47ms
Avg Response
99.99%
Availability
10K
Req/sec limit
Authentication
All API requests require an API key passed via the Authorization header.
Keys are scoped to specific permissions and can be rotated without downtime.
https://api.fastmetrics.it.com/v4/metrics
Core Endpoints
Ingest one or more events. Supports batch payloads up to 1MB.
"events": [{
"type": "purchase",
"revenue": 149.99,
"currency": "USD",
"user_id": "usr_8f2k...",
"timestamp": "2026-02-17T14:32:00Z"
}]
}
Retrieve a specific metric with time-series data. Supports granularity from 1s to 1d.
"metric_id": "revenue_total",
"value": 842950.00,
"change_pct": 24.8,
"series": [{ "t": "...", "v": ... }]
}
List all dashboards for the authenticated workspace. Supports pagination and filtering by tag.
Create a new alert rule. Supports threshold, anomaly detection, and composite conditions.
Generate a data export job. Returns a signed URL when the export is ready. Supports CSV, Parquet, and JSON formats.
Retrieve enriched user profile with computed LTV, cohort assignment, and engagement score.
Client SDKs
JavaScript / TypeScript
Browser, Node.js, Deno, and Bun compatible.
Python
Python 3.9+. Async support via httpx.
Go
Go 1.21+. Zero dependencies.
Rate Limits
Starter
1,000 req/s
50M events/month included
Growth
5,000 req/s
500M events/month included
Enterprise
10,000+ req/s
Unlimited. Custom SLA.