Instagram Niche Influencer Finder

Instagram

Operated by Sourcelane✓ verified

A tool to find Instagram accounts that match a plain-English niche description by expanding that description into search keywords and hashtags, discovering accounts via Instagram account search and authors of top hashtag posts, verifying live profiles, and enriching each match with profile metadata (display name and biography), category labels, audience metrics (follower, following, and post counts), publicly available contact details (email and phone when exposed), verification and business-account status, and a short relevance explanation and discovery source. The connector applies automated keyword/hashtag expansion, dual discovery channels (search + hashtag authors), live-profile verification, and semantic matching to produce structured account records suitable for influencer identification, list building, and market analysis.

Verified Sep 28, 12:10 AM

$0.013

per niche account

Up to 76 per call. Only pay for results returned; failed calls are refunded.

What people use it for

Influencer discovery: build lists of creators in a product or content niche without knowing usernames.
Lead generation: locate business accounts in a vertical and extract publicly exposed contact details.
Competitor and market research: map active creators in a niche and quantify audience sizes.
Micro-influencer campaigns: target smaller accounts by restricting audience-size range to surface mid- and micro-influencers.
Outreach list building: assemble targeted account lists for outreach and campaign planning.

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://cool-puffin-608.convex.site/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"instagram-niche-finder","params":{"niche":"sustainable fashion bloggers","maxItems":5},"maxResults":10}'

Request params

Field	Type	Required	Description
`niche`	string	required	Describe the niche or audience you want to find, in plain English - e.g. 'sustainable fashion bloggers', 'yoga instructors in London', 'new mom lifestyle creators'.
`maxItems`	integer	optional	Maximum number of matching accounts to return. Set 0 for no limit (bounded by how many relevant accounts can be discovered). Capped at 76 per call.
`minFollowers`	integer	optional	Only include accounts with at least this many followers. Set 0 to disable the filter.
`maxFollowers`	integer	optional	Only include accounts with at most this many followers - useful for targeting micro-influencers. Set 0 to disable the filter.
`includePrivate`	boolean	optional	Include private accounts in the results. Private accounts still expose their name, bio, and follower counts, but their posts are not visible.

Each result contains

Field	Type	Description
`niche`	string	Niche
`username`	string	Username
`url`	string	Url
`userId`	string	User Id
`fullName`	string	Full Name
`biography`	string	Biography
`category`	null	Category
`followerCount`	integer	Follower Count
`followingCount`	integer	Following Count
`mediaCount`	integer	Media Count
`isPrivate`	boolean	Is Private
`isVerified`	boolean	Is Verified
`isBusiness`	boolean	—
`externalUrl`	null	—
`publicEmail`	null	—
`publicPhone`	null	—
`profilePicUrl`	string	—
`discoveredVia`	string	—
`matchedTerms`	array	—
`relevanceReason`	string	—

Use Instagram Niche Influencer Finder from Claude, ChatGPT or Cursor

Pick your tool and connect in under a minute. Then just ask — for example: “Pull the last 20 posts from @natgeo and tell me which formats get the most engagement.”

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://cool-puffin-608.convex.site/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://cool-puffin-608.convex.site/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://cool-puffin-608.convex.site/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://cool-puffin-608.convex.site/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://sourcelane-amber.vercel.app/openapi.json

REST

One POST. Pass maxResults to cap cost.

curl

curl -X POST https://cool-puffin-608.convex.site/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"instagram-niche-finder","params":{"niche":"sustainable fashion bloggers","maxItems":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://cool-puffin-608.convex.site/v1/call",
    headers={"Authorization": "Bearer sl_live_your_agent_key"},
    json={
        "listing": "instagram-niche-finder",
        "params": {"niche":"sustainable fashion bloggers","maxItems":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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