YC active company list audit

Raindrop

Raindrop: Sentry for AI Agents. Headquartered in San Francisco, CA, United States. Current operating status: active.

Oomira checked this YC company record against source evidence and keeps the current facts, observed dates, and provenance visible before the interactive app loads.

23 facts4 sources5 superseded claims

What changed in the audit

external name

Sidekick [NOTE -> Raindrop
2026-06-12 · yc-oss record id 29401: field "former_names" includes "Sidekick [NOTE"

external name

this is a duplicate app per request of Diana Hu. old id: zkoticha] -> Raindrop
2026-06-12 · yc-oss record id 29401: field "former_names" includes "this is a duplicate app per request of Diana Hu. old i...

external name

Sidekick -> Raindrop
2026-06-12 · yc-oss record id 29401: field "former_names" includes "Sidekick"

external name

Invisible Tools -> Raindrop
2026-06-12 · yc-oss record id 29401: field "former_names" includes "Invisible Tools"

external name

Dawn -> Raindrop
2026-06-12 · yc-oss record id 29401: field "former_names" includes "Dawn"

Summary: Sentry for AI Agents
Description: Monitor your AI agents the right way. AI engineers use Raindrop to get alerts about silent failures in their AI agents. Raindrop sends you alerts when your AI misbehaves and links...
Website: https://www.raindrop.ai
Hiring: yes
Headquarters: San Francisco, CA, United States
Operating status: active
Industry: B2B

Open the full YC audit or continue into the interactive frozen world below.