delightful open-sourceobservability you own

Open-source observability you own, queried with SQL

Warning

Strada is still a work in progress. Breaking changes may happen at any time. If you run into any issues, please open a GitHub issue.

Strada replaces Sentry, Datadog, and Google Analytics with a single open-source stack built on OpenTelemetry. Your data lives in your own ClickHouse database. You query it with SQL from the CLI. Agents can monitor, debug, and fix issues end-to-end without touching a browser.

1npm install @strada.sh/sdk

123456import { initStrada, captureException, track } from "@strada.sh/sdk"

initStrada({ projectId: "01JTHG...", token: process.env.STRADA_TOKEN, service: "api" })

// errors, traces, logs, metrics, custom events
// all flow through standard OpenTelemetry to your database

What Strada replaces

   Sentry                                                       ─┐
   errors, alerts, issue grouping                                │
                                                                 │
   Datadog                                                       │
   traces, logs, metrics                                         ├────►  Strada
                                                                 │
   Google Analytics                                              │       one CLI
   pageviews, sessions, custom events                            │       one database
                                                                 │       one SQL dialect
   Grafana                                                       │
   dashboards, visualizations, query & alerts                   ─┘

All data lands in the same ClickHouse database, queryable with the same SQL. No context switching between tools.

The Strada Node SDK bundle is 4.8× smaller than Sentry's Node SDK when bundled with esbuild. Smaller bundles mean faster cold starts in Vercel, AWS Lambda, Cloudflare Workers, and other serverless runtimes. Strada stays small because it is a thin layer on top of standard OpenTelemetry, not a proprietary vendor SDK you have to rip out later.

Bundle size, esbuild ESM, node18 target

Strada SDK   400.5 kB  ██████████
Sentry SDK  1908.6 kB  ████████████████████████████████████████████████

Sentry is 4.8× larger.

Use cases

Run SQL queries from agents: agents call strada query "SELECT ..." to answer any question about your system. Raw ClickHouse SQL, no proprietary API
List and inspect issues: agents run strada issues list to see error groups, read stacktraces, identify regressions, and open fix PRs
Read logs to debug issues: agents query otel_logs filtered by trace ID, session, or time range to reconstruct what happened before a failure
Analyze and improve performance: agents query span durations, identify slow endpoints, compare p95 latency across releases
Monitor payment funnels: track checkout_started and purchase_completed as custom events. Query success rates with SQL to catch drops early
Debug by user session: errors, pageviews, custom events, and backend traces for a single user in one query. Join across otel_errors, otel_logs, and otel_traces
Correlate errors with revenue: compare error rates before and after a fix against conversion events to measure impact
Replace Google Analytics: browser pageviews, sessions, referrers, devices, all stored in the same ClickHouse tables as errors and traces

How it works

   Browser SDK                  Node SDK                   Workers SDK
   pageviews, track, errors     traces, logs, metrics      captureException
        │                            │                            │
        │      OTLP HTTP/JSON        │      OTLP HTTP/JSON         │
        ▼                            ▼                            ▼
   ┌───────────────────────────────────────────────────────────────────────┐
   │                      Strada OTLP Collector                            │
   │                 (Cloudflare Worker, open source)                      │
   └────────┬─────────────────┬──────────────────┬──────────────────┬──────┘
            │                 │                  │                  │
            ▼                 ▼                  ▼                  ▼
       otel_traces        otel_logs        otel_metrics       otel_errors
            │                 │                                      ▲
            │                 └─────────────▶ extract exceptions ────┘
            ▼
       otel_analytics_pages       ◀────────── materialized views
       otel_analytics_sessions

Every feature maps to a standard OpenTelemetry signal:

Errors = OTel log records or span events with exception.* attributes, extracted into otel_errors
Traces = OTel spans with parent/child relationships in otel_traces
Logs = OTel log records in otel_logs
Metrics = OTel gauges, sums, histograms in otel_metrics_*
Analytics = browser OTel pageview spans, aggregated by materialized views
Custom events = OTel log records with event.name attribute

Quick start

1. Create your database

12strada database create
# Authenticates with Tinybird, deploys all tables and materialized views

2. Create a project

12345strada projects create my-app
# Returns a project ID, ingest endpoint, and a server-side token

strada setup --project my-app
# Saves this folder's default org/project in ~/.strada/config.json

strada setup binds the current folder to an organization and project. After setup, CLI commands run against that project implicitly, so you do not need to pass --project my-app to every command.

When you belong to multiple organizations or have multiple projects, run setup inside each app folder:

1234567cd ~/code/acme-api
strada setup
# pick Acme / api

cd ~/code/personal-site
strada setup
# pick Personal / frontend

The mapping is stored outside your repo in ~/.strada/config.json, not committed to source control. Strada resolves config by walking up from the current working directory and using the closest matching folder scope:

1234567891011121314{
  "scoped": {
    "/": {
      "sessionToken": "...",
      "baseUrl": "https://strada.sh"
    },
    "/Users/me/code/acme-api": {
      "orgId": "01HORG...",
      "orgName": "Acme",
      "projectId": "01HPROJ...",
      "projectSlug": "api"
    }
  }
}

3. Send telemetry

strada projects create prints a token once. Use that token in trusted server runtimes like Node.js, Vercel, and Cloudflare Workers. If you need another one later, run strada tokens create --scope ingest production-server. Browser apps should omit token; browser ingest is anonymous and rate limited because browser secrets are public.

1234567891011121314151617181920212223242526272829import { initStrada, captureException, track, startSpan } from "@strada.sh/sdk"

initStrada({
  projectId: "01JTHG5M7XPQR8KNCZ0W4D",
  token: process.env.STRADA_TOKEN,
  service: "api",
  environment: "production",
  version: "1.2.0",
  enabled: !import.meta.hot,
})

// enabled: false keeps OTel APIs local but sends nothing to ingest.
// In Vite/RSC dev servers, import.meta.hot is truthy during HMR.

// capture errors
try {
  await processPayment(order)
} catch (err) {
  captureException(err)
}

// create traces (auto-ends span, auto-records errors)
await startSpan({ name: "process-order" }, async (span) => {
  span.setAttribute("order.id", "ord_123")
  await processOrder(order)
})

// track custom events
track("purchase_completed", { plan: "pro", amount: 49 })

4. Query from the CLI

1234567891011121314151617181920212223242526272829# list error groups from the last 24 hours
strada issues list --since 24h

# view a specific error with stacktrace
strada issues view <fingerprint>

# browse recent logs
strada logs --since 1h
strada logs --min-level error --since 24h
strada logs --search "timeout" --service api

# filter by any attribute with --where (-w)
strada logs -w "mapContains(LogAttributes, 'event.name')"          # custom events only
strada logs -w "LogAttributes['user.id'] = 'user_123'"             # specific user
strada logs -w "LogAttributes['exception.type'] = 'TypeError'"     # specific error type

# log volume by service and severity
strada logs stats --since 24h

# run any SQL query
strada query "SELECT count() FROM otel_errors WHERE ExceptionType = 'TypeError'"

# browser analytics
strada analytics pages --since 7d
strada analytics overview --since 7d

# custom events with attribute filters
strada analytics events -w "LogAttributes['custom.plan'] = 'pro'"    # events from pro users
strada analytics events -w "LogAttributes['user.id'] = 'user_123'"   # events from a user

Terminal UI

Run strada with no arguments to launch an interactive terminal UI for browsing your observability data. The TUI uses termcast and requires Bun. If you run it under Node, it re-spawns with Bun automatically.

1strada

The TUI has four views, switchable via the navigation dropdown (Ctrl+P):

Issues — error groups sorted by frequency, with stacktraces and event counts
Logs — log records with severity coloring and full attribute detail
Traces — trace list with a span tree view showing parent/child hierarchy using tree-drawing characters
Analytics — KPIs, top pages, browsers, countries, referrers, and custom events

The dropdown also lets you switch projects and time ranges (5 min to 30 days). Service filtering is in the action panel (Ctrl+K). All selections persist across sessions.

Built on OpenTelemetry

OpenTelemetry is the industry standard for observability. It defines a common format for traces, logs, and metrics that works across every language, framework, and cloud provider.

Strada is 100% OpenTelemetry. The SDK is a thin wrapper around the official OTel SDKs that configures providers, exporters, and a few convenience helpers. You can use your existing OTel setup to send data to Strada. It will just work.

   your code ──► initStrada() + captureException() + track()
                        │
                        │  configures standard OTel providers
                        ▼
           TracerProvider           LoggerProvider          MeterProvider
                 │                        │                       │
                 └────────────────────────┼───────────────────────┘
                                          │
                                          │  OTLP HTTP/JSON
                                          ▼
                                  Strada Collector
                                 (Cloudflare Worker)
                                          │
          ┌─────────────┬─────────────────┼─────────────────┬──────────────┐
          ▼             ▼                 ▼                 ▼              ▼
     otel_traces    otel_logs        otel_errors      otel_metrics    otel_analytics
   ┌──────────────────────────────────────────────────────────────────────────────────┐
   │                          ClickHouse (your database)                                │
   └──────────────────────────────────────────────────────────────────────────────────┘

If you already have OTel instrumentation, point your OTLP exporter at your Strada ingest endpoint. No SDK swap needed.

Strada adds a few extra attributes on top of standard OTel to enable error tracking and analytics:

Attribute	Purpose
`session.id`	Per-tab browser session UUID for grouping pageviews
`visitor.id`	Anonymous browser identity from `strada_vid`; powers unique visitor counts
`user.id`	Signed-in user identity, propagated via W3C Baggage
`event.name`	Distinguishes custom events from ordinary logs
`exception.mechanism.type`	How an error was captured (onerror, unhandledrejection, etc.)
`exception.mechanism.handled`	Whether user code caught the error
`exception.fingerprint`	Custom grouping override for error deduplication

These are regular OTel attributes. Any OTel SDK can set them.

Using Strada without the SDK

Strada speaks standard OTLP HTTP/JSON. Any OpenTelemetry SDK in any language can send data to Strada using environment variables alone. No @strada.sh/sdk needed.

The OTel spec defines three env vars that cover endpoint, auth, and protocol:

123OTEL_EXPORTER_OTLP_ENDPOINT=https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh
OTEL_EXPORTER_OTLP_HEADERS="authorization=Bearer str_abc123..."
OTEL_EXPORTER_OTLP_PROTOCOL=http/json

OTEL_EXPORTER_OTLP_HEADERS is a comma-separated list of key=value pairs. The OTel SDK adds them as HTTP headers on every export request. authorization=Bearer str_abc123... becomes the standard Authorization: Bearer str_abc123... header that the Strada collector expects.

OTEL_EXPORTER_OTLP_PROTOCOL must be http/json. Strada does not support gRPC or protobuf. Most OTel SDKs default to protobuf, so this env var is required.

Node.js (without Strada SDK)

1234567891011import { NodeSDK } from "@opentelemetry/sdk-node"
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http"
import { OTLPLogExporter } from "@opentelemetry/exporter-logs-otlp-http"
import { SimpleLogRecordProcessor } from "@opentelemetry/sdk-logs"

// env vars are read automatically by the exporters
const sdk = new NodeSDK({
  traceExporter: new OTLPTraceExporter(),
  logRecordProcessors: [new SimpleLogRecordProcessor(new OTLPLogExporter())],
})
sdk.start()

12345OTEL_EXPORTER_OTLP_ENDPOINT=https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh \
OTEL_EXPORTER_OTLP_HEADERS="authorization=Bearer str_abc123..." \
OTEL_EXPORTER_OTLP_PROTOCOL=http/json \
OTEL_SERVICE_NAME=my-api \
node app.js

Python

1pip install opentelemetry-sdk opentelemetry-exporter-otlp-proto-http

12345OTEL_EXPORTER_OTLP_ENDPOINT=https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh \
OTEL_EXPORTER_OTLP_HEADERS="authorization=Bearer str_abc123..." \
OTEL_EXPORTER_OTLP_PROTOCOL=http/json \
OTEL_SERVICE_NAME=my-api \
opentelemetry-instrument python app.py

Go

The Go SDK defaults to protobuf. Set the protocol env var, or use WithEncoding in code:

12345OTEL_EXPORTER_OTLP_ENDPOINT=https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh \
OTEL_EXPORTER_OTLP_HEADERS="authorization=Bearer str_abc123..." \
OTEL_EXPORTER_OTLP_PROTOCOL=http/json \
OTEL_SERVICE_NAME=my-api \
go run .

Or explicitly in code:

123456789import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"

exporter, _ := otlptracehttp.New(ctx,
    otlptracehttp.WithEndpointURL("https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh"),
    otlptracehttp.WithEncoding(otlptracehttp.EncodingJSON),
    otlptracehttp.WithHeaders(map[string]string{
        "authorization": "Bearer str_abc123...",
    }),
)

Per-signal headers

You can set headers per signal if you need different auth for different endpoints:

123OTEL_EXPORTER_OTLP_TRACES_HEADERS="authorization=Bearer str_abc123..."
OTEL_EXPORTER_OTLP_LOGS_HEADERS="authorization=Bearer str_abc123..."
OTEL_EXPORTER_OTLP_METRICS_HEADERS="authorization=Bearer str_abc123..."

Programmatic headers

If you prefer setting headers in code instead of env vars, every OTel exporter accepts a headers option:

12345// Node.js
new OTLPTraceExporter({
  url: "https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh/v1/traces",
  headers: { authorization: "Bearer str_abc123..." },
})

1234567# Python
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter

exporter = OTLPSpanExporter(
    endpoint="https://01JTHG5M7XPQR8KNCZ0W4D-ingest.strada.sh/v1/traces",
    headers={"authorization": "Bearer str_abc123..."},
)

The endpoint URL format is always https://{projectId}-ingest.strada.sh. The project ID comes from strada projects create <slug>.

CLI-first, agent-first

Strada is designed for the terminal. Every operation is a CLI command. No clunky web UI that agents can't use.

123456789strada query "SELECT ..."       # any ClickHouse SQL
strada issues list -p my-app    # error groups, sorted by frequency
strada issues view <fp>         # stacktrace, recent events, metadata
strada logs -p my-app           # browse logs, colored one-line output
strada logs stats -p my-app     # log volume by service and severity
strada analytics pages          # top pages, browsers, countries
strada analytics events         # custom events with properties
strada projects list            # list all projects
strada login                    # device flow auth

Agents can run strada query with raw SQL to answer any question about your system. No rate limits, no API keys to manage, no pagination tokens. Just SQL.

Agent workflows

Give your agents the Strada CLI and they can:

Monitor and auto-fix: run strada issues list, identify the top error, read the stacktrace, find the bug in your codebase, open a PR
Read logs to debug failures: strada logs -p my-app --min-level error --since 1h to see recent errors, then --trace-id to follow a specific request across services
Debug payment flows: strada query "SELECT ... FROM otel_errors WHERE ExceptionMessage LIKE '%stripe%'" to find all errors blocking Stripe subscriptions
Track ROI on bug fixes: correlate error rates with revenue events. Did fixing that TypeError increase successful checkouts?
Build status pages: query uptime and error rates via SQL, render them however you want

1234567891011121314# example: find all unhandled errors in the checkout flow from the last hour
strada query "
  SELECT
    ExceptionType,
    ExceptionMessage,
    count() as occurrences
  FROM otel_errors
  WHERE SpanName LIKE '%checkout%'
    AND MechanismHandled = 'false'
    AND Timestamp >= now() - INTERVAL 1 HOUR
  GROUP BY ExceptionType, ExceptionMessage
  ORDER BY occurrences DESC
  LIMIT 20
" -p my-app

HTTP route performance

Use strada query to find the heaviest HTTP routes by request count and latency. Filter to root spans with ParentSpanId = '' so each row is one HTTP request, not a nested DB query or downstream call. Duration is in nanoseconds; divide by 1e6 to get milliseconds.

12345678910111213141516# top routes by request count, with RPS and latency percentiles
strada query "
  SELECT
    SpanName AS path,
    count() AS total_requests,
    round(count() / 3600, 2) AS rps,
    round(avg(Duration) / 1e6, 1) AS avg_ms,
    round(quantile(0.95)(Duration) / 1e6, 1) AS p95_ms,
    round(max(Duration) / 1e6, 1) AS max_ms
  FROM otel_traces
  WHERE Timestamp >= now() - INTERVAL 1 HOUR
    AND ParentSpanId = ''
  GROUP BY path
  ORDER BY total_requests DESC
  LIMIT 30
" -p my-app

Once you spot a hot route, drill into its per-minute traffic pattern:

12345678910111213# per-minute breakdown for a specific route
strada query "
  SELECT
    toStartOfMinute(Timestamp) AS minute,
    count() AS requests
  FROM otel_traces
  WHERE Timestamp >= now() - INTERVAL 1 HOUR
    AND ParentSpanId = ''
    AND SpanName = 'POST /api/my-route'
  GROUP BY minute
  ORDER BY minute DESC
  LIMIT 60
" -p my-app

quantile(0.95)(Duration) is ClickHouse's built-in percentile function. You can swap 0.95 for 0.5 (median) or 0.99 (p99).

Browser analytics

Browser analytics in Strada is just OTel data sent from the browser. Pageviews are spans. Custom events are log records. Unique visitors use visitor.id (cookie strada_vid). Sessions use session.id in sessionStorage.

1234567891011import { initStrada, track, identifyUser } from "@strada.sh/sdk"

initStrada({
  projectId: "01JTHG5M7XPQR8KNCZ0W4D",
  service: "frontend",
})
// pageview tracking starts automatically

// track custom events
track("signup_started", { plan: "pro", source: "pricing-page" })
track("purchase_completed", { amount: 49 })

User identification uses cookie strada_uid. Unique visitors use cookie strada_vid. Set the account cookie when the user logs in, or call identifyUser({ id }):

12identifyUser({ id: user.id })
identifyUser(null) // logout: clear strada_uid, keep strada_vid

The SDK injects user.id into every span, log, error, and custom event, and propagates it to the backend via W3C Baggage.

Why analytics + errors together matters

All your data is in the same database. You can join errors with analytics:

123456789-- find which pages have the most errors
SELECT
  LogAttributes['url.path'] AS page,
  count() AS error_count
FROM otel_errors
WHERE Timestamp >= now() - INTERVAL 7 DAY
GROUP BY page
ORDER BY error_count DESC
LIMIT 10

12345-- get the full session timeline for a user who hit an error
SELECT Timestamp, ServiceName, SpanName, LogAttributes['event.name'] AS event
FROM otel_logs
WHERE LogAttributes['session.id'] = 'abc-123'
ORDER BY Timestamp ASC

This is hard to do when errors live in Sentry, analytics in Google Analytics, and traces in Datadog. In Strada it's one SELECT.

You own your data

Strada does not host a database for you. Instead, it uses Tinybird (managed ClickHouse) so you're never locked in.

One command setup: strada database create deploys all tables, materialized views, and tokens to your Tinybird workspace
Also runs on plain ClickHouse: point Strada at any ClickHouse instance. Same schema, same queries
Standard OTel schema: column names follow the official OTel ClickHouse exporter. No proprietary format
Self-host everything: the entire infrastructure runs on Cloudflare Workers. Fork the repo and deploy with wrangler deploy
Or use strada.sh: the managed service handles multi-tenancy, auth, team collaboration, and ingestion. You still own the database

                                            ┌──────────────────────────────────────────────┐
   strada.sh (managed) ─────────────────►  │  Your Tinybird workspace                      │
   auth, teams, ingestion, CLI              │                                               │
                                            │  otel_traces ─── otel_logs ─── otel_errors   │
                   OR                       │  otel_metrics ─── otel_analytics_*            │
                                            │                                               │
   self-hosted (fork + wrangler deploy) ──► │  same schema, same tables                     │
   Cloudflare Workers, zero lock-in         │  you own everything                           │
                                            └──────────────────────────────────────────────┘

Why Tinybird

Fast: ClickHouse is columnar, designed for analytical queries. Millions of spans in milliseconds
Just SQL: no proprietary DSL. Standard ClickHouse SQL that your agents already know
Cheap storage: $0.058/GB/month with ZSTD compression. Orders of magnitude less than Datadog
No idle cost: pay only for active queries and ingestion. No traffic = minimal bill
Built-in isolation: JWT row-level filtering scopes each project automatically

See the Tinybird pricing breakdown for detailed cost estimates.

SDK

The SDK works on Node.js, browsers, and Cloudflare Workers. One import path, resolved by export conditions:

1import { initStrada, captureException, track, trace, logs, metrics } from "@strada.sh/sdk"

Runtime	What it sets up
Node.js / Bun	OTel providers, OTLP exporters, process error handlers, graceful shutdown
Browser	WebTracerProvider, pageview spans, session management, error/rejection handlers
Cloudflare Workers	BasicTracerProvider, auto-flush via `waitUntil`, zero overhead when unused

After initStrada(), all standard OTel APIs work: trace.getTracer(), logs.getLogger(), metrics.getMeter(). The SDK re-exports these so you don't need @opentelemetry/api as a dependency.

Convenience helpers (optional, thin wrappers over OTel):

startSpan({ name }, callback) creates a span, auto-ends it, and auto-records errors. No tracer instance needed
captureException(error) normalizes errors, computes fingerprints, emits structured OTel log records
track(name, props) emits custom events as OTel log records with event.name and custom.* attributes
setTags(tags) sets tags merged into subsequent error attributes
flush() / shutdown() for manual lifecycle control

Automatic context propagation

The SDK automatically propagates request context so errors always show where they happened, without any app code.

Browser: every span and log record gets url.path, session.id, visitor.id, and user.id from window.location, sessionStorage, cookie strada_vid (visitor), and cookie strada_uid (account).

Server (Node.js, Workers): captureException() inside an HTTP handler automatically includes the handler's url.path, http.route, and http.method. This works even in nested spans (e.g., a DB query inside an Express handler) because the SDK propagates context from parent to child spans.

1234567GET /api/orders (url.path="/api/orders", http.method="GET")
  │
  ├── db.query (inherits url.path="/api/orders" from parent)
  │     └── captureException(err) → error row has url.path="/api/orders"
  │
  └── POST /v1/payment_intents (keeps its own url.path, not overwritten)
        └── captureException(err) → error row has url.path="/v1/payment_intents"

The SDK also normalizes old OTel semantic conventions (http.target, http.url) into url.path so errors show a clean path regardless of which instrumentation version you use.

Browser-to-server: session.id and user.id propagate from browser to backend via W3C Baggage headers. Backend errors within a browser-initiated request carry the same session and user identity.

See the full SDK documentation for detailed API reference, auto-instrumentation setup, batching config, and browser/server context propagation.

Sourcemaps

Strada does not support sourcemap upload right now. Instead, preserve function and class names in production builds:

12345678910// vite.config.ts
import { defineConfig } from 'vite'

export default defineConfig({
  build: {
    rolldownOptions: {
      output: { keepNames: true },
    },
  },
})

Minifiers shorten variable names to save bytes. But gzip already compresses repeated strings. So the actual transfer size difference is tiny, while you get readable stack traces with zero extra infrastructure. No sourcemap upload steps, no build-time auth tokens, no release matching.

Agent skill

Install the skill to teach AI agents the Strada workflows:

1npx -y skills add remorses/strada

This works with Claude Code, Cursor, Windsurf, and other AI coding agents. The skill teaches them how to use the CLI, query data, debug errors, and work with the OTel schema.