YouTube Channel Finder

YouTube

Operated by Sourcelane✓ verified

Find YouTube channels by keyword-based niche queries and return a vetted, de-duplicated list of channels enriched with identity data, audience size and reach metrics, recent activity and engagement analytics, upload cadence, geographic tags, business contact emails and social/external links, and provenance information about which keyword and rank surfaced each channel. The connector searches channel listings for given topic phrases, analyzes recent uploads to compute current average views/likes/comments, engagement rate, shorts share and posting frequency, classifies channels into size tiers (nano, micro, mid, macro, mega), extracts creator-provided tags and topic categories, and harvests About-page links and labeled external contacts for outreach. Results can be filtered by audience size, country, recent activity window, and per-keyword limits; channels matched across multiple keywords are deduplicated and each match includes which search keyword found it and its search rank.

Verified Sep 28, 3:56 AM

$0.01

per channel

Up to 100 per call. Only pay for results returned; failed calls are refunded.

What people use it for

Influencer discovery: build shortlists of creators in a niche within a subscriber-size range with engagement and contact details.
Sponsorship and outreach lists: find active channels with business emails and social handles for partnership campaigns.
Competitor research: map channels competing for a topic and benchmark size, cadence, and engagement.
Niche validation: assess how many active channels exist for a topic before launching a channel or product.
Lead generation: locate brand or company channels (agencies, e-commerce, SaaS) publishing on a subject.
Market sizing: aggregate subscribers and views by country for a category.

Trust & reliability

7d uptime trend

Window	Uptime	Success rate	p50	p95
24h	—	—	—	—
7d	—	—	—	—
30d	—	—	—	—

Calling contract

Call it through Sourcelane's gateway or MCP server. We run the connector, apply your agent's spend guardrails, and bill only the results returned.

Call it via Sourcelane

curl -X POST https://api.usesourcelane.com/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"youtube-channel-finder","params":{"keywords":["vegan cooking"],"maxChannelsPerKeyword":5},"maxResults":10}'

Request params

Field	Type	Required	Description
`keywords`	array	required	Niche or topic keywords to search channels for, one per line (e.g. "home espresso", "vegan cooking", "personal finance for students").
`maxChannelsPerKeyword`	integer	optional	Maximum number of matching channels to return for each keyword after filters are applied. Set 0 for as many as possible (up to 1,000 per keyword). Capped at 100 per call.
`minSubscribers`	integer	optional	Only return channels with at least this many subscribers. 0 = no minimum.
`maxSubscribers`	integer	optional	Only return channels with at most this many subscribers. 0 = no maximum. Useful for targeting micro-influencers (e.g. 10,000-100,000).
`countries`	array	optional	Optional two-letter country codes (US, GB, AU, DE,...). Only channels that publicly declare one of these countries are returned. Leave empty for all countries.
`lastUploadWithinDays`	integer	optional	Only return channels that uploaded a video within this many days. 0 = no activity filter.
`includeRecentActivity`	boolean	optional	Analyze each channel's 10 latest uploads to compute last upload date, uploads per month, average views, likes, comments, engagement rate, and Shorts share. Adds a little runtime per channel.
`includeLinks`	boolean	optional	Read each channel's About panel to collect external links (website, Instagram, TikTok, X, Facebook, LinkedIn, Discord, Patreon) and extract business emails from the description.

Each result contains

Field	Type	Description
`channelId`	string	Channel Id
`channelUrl`	string	Channel Url
`handle`	string	Handle
`title`	string	Title
`description`	string	Description
`thumbnailUrl`	string	Thumbnail Url
`subscriberCount`	integer	Subscriber Count
`totalViews`	integer	Total Views
`videoCount`	integer	Video Count
`avgViewsPerVideo`	integer	Avg Views Per Video
`sizeTier`	string	Size Tier
`country`	string	Country
`joinedAt`	string	—
`channelKeywords`	array	—
`topicCategories`	array	—
`externalLinks`	array	—
`lastUploadAt`	string	—
`recentVideosAnalyzed`	integer	—
`uploadsPerMonth`	number	—
`avgViewsRecent`	integer	—
`avgLikesRecent`	integer	—
`avgCommentsRecent`	integer	—
`engagementRate`	number	—
`shortsShareRecent`	integer	—
`latestVideoTitle`	string	—
`latestVideoUrl`	string	—
`email`	string	—
`allEmails`	array	—
`website`	null	—
`instagram`	null	—
`tiktok`	null	—
`twitter`	null	—
`facebook`	null	—
`linkedin`	null	—
`discord`	null	—
`patreon`	null	—
`otherLinks`	array	—
`searchKeyword`	string	—
`searchRank`	integer	—

Use YouTube Channel Finder from Claude, ChatGPT or Cursor

Pick your tool and connect in under a minute. Then just ask — for example: “Get the transcript of this video and turn it into a blog outline: <url>”

Connect Claude

Web, desktop and mobile. Paste one URL.

1Copy your personal connector URL
2In Claude open Settings → Connectors → Add custom connector
3Paste the URL and click Add — done

Manual setup (config files, REST, Python) +

Claude Code

Adds the Sourcelane MCP server with your key as a header.

terminal

claude mcp add --transport http sourcelane https://api.usesourcelane.com/mcp \
  --header "Authorization: Bearer sl_live_your_agent_key"

Claude Desktop (config file)

Alternative to the connector URL: add to claude_desktop_config.json, then restart Claude.

claude_desktop_config.json

{
  "mcpServers": {
    "sourcelane": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://api.usesourcelane.com/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ],
      "env": {
        "AUTH_HEADER": "Bearer sl_live_your_agent_key"
      }
    }
  }
}

Cursor & Windsurf

Add to ~/.cursor/mcp.json (or Windsurf's mcp_config.json).

mcp.json

{
  "mcpServers": {
    "sourcelane": {
      "url": "https://api.usesourcelane.com/mcp",
      "headers": {
        "Authorization": "Bearer sl_live_your_agent_key"
      }
    }
  }
}

VS Code

Save as .vscode/mcp.json. VS Code prompts for your key once.

.vscode/mcp.json

{
  "servers": {
    "sourcelane": {
      "type": "http",
      "url": "https://api.usesourcelane.com/mcp",
      "headers": {
        "Authorization": "Bearer ${input:sourcelane-key}"
      }
    }
  },
  "inputs": [
    {
      "type": "promptString",
      "id": "sourcelane-key",
      "description": "Sourcelane agent key",
      "password": true
    }
  ]
}

ChatGPT Custom GPT (Actions)

Create a GPT → Actions → Import from URL, then Authentication: API Key, Bearer.

OpenAPI schema URL

https://usesourcelane.com/openapi.json

REST

One POST. Pass maxResults to cap cost.

curl

curl -X POST https://api.usesourcelane.com/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"youtube-channel-finder","params":{"keywords":["vegan cooking"],"maxChannelsPerKeyword":5},"maxResults":10}'

Python, LangChain, CrewAI, OpenAI Agents SDK…

Wrap the REST call as a tool, or point an MCP client at the endpoint.

python

import requests

res = requests.post(
    "https://api.usesourcelane.com/v1/call",
    headers={"Authorization": "Bearer sl_live_your_agent_key"},
    json={
        "listing": "youtube-channel-finder",
        "params": {"keywords":["vegan cooking"],"maxChannelsPerKeyword":5},
        "maxResults": 10,
    },
    timeout=300,
)
body = res.json()
print(body["receipt"]["chargedMicros"], "micro-USD for", body["receipt"]["results"], "results")
print(body["data"])

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