# o11y

> O11y Client-Side Instrumentation & Observability Library

Latest version **266.18.0** (published 2026-09-04) · BSD-3-Clause license · 0 weekly downloads

## Install

```sh
npm install o11y
pnpm add o11y
yarn add o11y
bun add o11y
```

## Health

**Score 55/100 (C)** — status: active.

Positive: esm support; no vulnerabilities; recently updated; high maintenance score.

Warnings: low downloads; no types; low quality score.

## Facts

| | |
|---|---|
| Version | 266.18.0 |
| Published | 2026-09-04 |
| First published | 2021-02-13 |
| Weekly downloads | 0 |
| License | BSD-3-Clause |
| TypeScript types | none |
| Module format | ESM + CommonJS |
| Dependencies | 3 |
| Unpacked size | 2.5 MB |
| Known vulnerabilities | 0 (+4 in 1 direct dependencies) |
| Install scripts | no |
| Author | Instrumentation Team |
| Maintainers | mkavone, lwc-admin, rafiquemt, lozforce, diervo |

## Links

- npm: https://www.npmjs.com/package/o11y
- Repository: git@git.soma.salesforce.com:instrumentation/o11y-client
- npm.io page: https://npm.io/package/o11y

## Dependencies (3)

- [protobufjs](https://npm.io/package/protobufjs.md) 7.5.6
- [web-vitals](https://npm.io/package/web-vitals.md) ^5.1.0
- [o11y_schema](https://npm.io/package/o11y_schema.md) 264.105.0

## Recent versions

- 266.18.0 (latest) — 2026-09-04
- 258.22.0 (core-258-patch) — 2025-11-18
- 2.0.2 (canary) — 2021-09-02
- 266.17.0 — 2026-09-02
- 266.16.0 — 2026-09-02
- 266.15.0 — 2026-08-31
- 266.14.0 — 2026-08-28
- 266.13.0 — 2026-08-10
- 266.12.0 — 2026-08-10
- 266.7.0 — 2026-08-06
- 266.6.0 — 2026-08-04
- 266.5.0 — 2026-08-04
- 264.26.0 — 2026-07-28
- 264.20.0 — 2026-06-25
- 264.19.0 — 2026-06-25
- … 165 more at https://npm.io/package/o11y/versions

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_Source: https://npm.io/package/o11y · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._