Cerul

Where video becomes citable.

Stop scrubbing. Start searching. The video search API for agents — meaning-based, grounded, timestamped.

Docs · API Reference · Pricing · · ·

demo.mp4

Why Cerul

Web pages are easy for AI agents to search. Video is not.

Most video search today is limited to transcripts — what was said. Cerul goes further by indexing what is shown: slides, charts, product demos, code walkthroughs, whiteboards, and other visual evidence.

Note

Cerul is in active development. The API is live at cerul.ai — sign up to get a free API key.

Quickstart

Claude Code plugin

Install the official Cerul plugin in Claude Code:

/plugin marketplace add cerul-ai/cerul-plugin-cc
/plugin install cerul@cerul-plugin

Source: cerul-ai/cerul-plugin-cc.

Use with your AI agent

Copy this and send it to your agent (Claude Code, Codex, Cursor, etc.):

Install the Cerul video search skill: mkdir -p ~/.claude/skills/cerul && curl -fsSL https://raw.githubusercontent.com/cerul-ai/cerul/main/skills/cerul/SKILL.md -o ~/.claude/skills/cerul/SKILL.md && cat ~/.claude/skills/cerul/SKILL.md

Your agent will install the CLI, set up credentials, and start searching videos as a tool.

Or install via the skills CLI:

npx skills add cerul-ai/cerul

Install for specific agents

# Claude Code
mkdir -p ~/.claude/skills/cerul && curl -fsSL https://raw.githubusercontent.com/cerul-ai/cerul/main/skills/cerul/SKILL.md -o ~/.claude/skills/cerul/SKILL.md

# Windsurf
mkdir -p ~/.codeium/windsurf/skills/cerul && curl -fsSL https://raw.githubusercontent.com/cerul-ai/cerul/main/skills/cerul/SKILL.md -o ~/.codeium/windsurf/skills/cerul/SKILL.md

# OpenCode
mkdir -p ~/.config/opencode/skills/cerul && curl -fsSL https://raw.githubusercontent.com/cerul-ai/cerul/main/skills/cerul/SKILL.md -o ~/.config/opencode/skills/cerul/SKILL.md

# Cline / Cursor
mkdir -p .claude/skills/cerul && curl -fsSL https://raw.githubusercontent.com/cerul-ai/cerul/main/skills/cerul/SKILL.md -o .claude/skills/cerul/SKILL.md

CLI

curl -fsSL https://cli.cerul.ai/install.sh | bash
cerul search "Sam Altman on AI video generation tools"

Inline video frame previews are supported in iTerm2, WezTerm, and Kitty. Enable with cerul config and toggle Images on. Other terminals show text-only results.

MCP (Model Context Protocol)

Connect any MCP-compatible client to the hosted endpoint (replace with your API key):

# Claude Code
claude mcp add --transport streamable-http "https://api.cerul.ai/mcp?apiKey=YOUR_API_KEY" cerul

# Codex
codex mcp add --url "https://api.cerul.ai/mcp?apiKey=YOUR_API_KEY" cerul

Also works with Claude Desktop, Cursor, Windsurf, and other MCP clients.

SDK & API

Python

pip install cerul

from cerul import Cerul

client = Cerul(api_key="YOUR_API_KEY")
results = client.search(query="Sam Altman on AGI timeline", max_results=5)

for r in results:
    print(r.title, r.url)

JavaScript

npm install cerul

import { cerul } from "cerul";

const client = cerul({ apiKey: "YOUR_API_KEY" });
const result = await client.search({ query: "Sam Altman on AGI timeline", max_results: 5 });

for (const r of result.results) {
  console.log(r.title, r.url);
}

cURL

curl "https://api.cerul.ai/v1/search" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "Sam Altman on AGI timeline", "max_results": 5}'

Full API spec: openapi.yaml | cerul.ai/docs

License

Licensed under Apache 2.0.

Community

Questions, feedback, or just want to follow along? Join the conversation — pick whichever community is closest to you.

🇨🇳 中国 (China) — scan to join the WeChat group:

微信群 (WeChat)
「Cerul.ai 官方社群」

🌍 International — chat with users and contributors worldwide on Discord:

Heads up: the WeChat QR rotates periodically and may expire. If a scan fails, ping us on Discord or X / Twitter for the latest invite.

_{Built by @JessyTsui}