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  5. Fiber AI API

Fiber AI API logo

Fiber AI API

Community
17 tools

$0.02 – $3.00/call

<100 calls

Reach anyone on the planet with verified contacts. Fiber AI delivers the most accurate contact data, period.

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Fiber Search Companies From Text
fiber_search_companies_from_text

Takes free-form text (e.g., 'Series A startups in USA with 50–200 employees') and returns a list of matching companies. The endpoint interprets natural language queries and applies structured filters such as industries, funding stages, headcount ranges, and locations to identify relevant companies.

flat

$1.08/call

Fiber Find Person By Email
fiber_find_person_by_email

Do a reverse lookup: given an email address, find someone's LinkedIn profile and personal details. Note: if you also have the person's name, company, etc., you'll get better results with the Kitchen Sink endpoint, where you can pass all the information you have.

flat

$0.08/call

Fiber Kitchen Sink Company Lookup
fiber_kitchen_sink_company_lookup

Search for a company using a variety of parameters such as LinkedIn slug, LinkedIn URL, name, etc. Returns complete company data if found.

flat

$0.02/call

Fiber Fetch Linkedin Profile Posts
fiber_fetch_linkedin_profile_posts

Fetches recent posts from a LinkedIn profile. Returns a paginated feed of posts with optional cursor for pagination. Each page returns up to 50 posts.

flat

$0.08/call

Fiber Fetch Linkedin Post Comments
fiber_fetch_linkedin_post_comments

Fetches paginated comments for a LinkedIn post. Each page contains up to 10 comments.

flat

$0.08/call

Fiber Investor Search
fiber_investor_search

Search for investors with flexible filtering capabilities

flat

$3.00/call

Fiber Validate A Single Email
fiber_validate_a_single_email

Checks if a given email is likely to bounce using a waterfall of strategies. Works for catch-all email addresses, which are increasingly common yet hard for other APIs to validate.

flat

$0.04/call

Fiber Company Search
fiber_company_search

Search for companies using filters

flat

$0.02/call

Fiber Kitchen Sink Person Lookup
fiber_kitchen_sink_person_lookup

Search for a person using a variety of parameters such as LinkedIn slug, LinkedIn URL, or their current company information. Returns profile data for the person if found.

flat

$0.02/call

Fiber Live Fetch Linkedin Company
fiber_live_fetch_linkedin_company

Returns an enriched company with details for a given LinkedIn company identifier

flat

$0.08/call

Fiber Convert Text Into Company Search Filters
fiber_convert_text_into_company_search_filters

Takes free-form text (e.g., 'Series A startups in USA with 50–200 employees') and converts it into a structured set of filters for company search. This endpoint helps transform natural language queries into standardized search parameters such as industries, funding stages, headcount ranges, locations, and more.

flat

$0.08/call

Fiber Search Profiles From Text
fiber_search_profiles_from_text

Takes free-form text (e.g., 'Software engineers in US with 5+ years of experience') and returns a list of matching profiles. The endpoint interprets natural language queries and applies structured filters such as job titles, seniority, skills, locations, past jobs, education, and languages to identify relevant people.

flat

$1.08/call

Fiber Convert Text Into Profile Search Filters
fiber_convert_text_into_profile_search_filters

Takes free-form text (e.g., 'Software engineers in US with 5+ years of experience') and converts it into a structured set of filters for profile search. This endpoint helps transform natural language queries into standardized search parameters such as job titles, skills, seniority, locations, past experiences, education, languages, and more.

flat

$0.08/call

Fiber People Search
fiber_people_search

Search for people using filters

flat

$0.02/call

Fiber Live Fetch Linkedin Profile
fiber_live_fetch_linkedin_profile

Returns an enriched profile with details for a given LinkedIn profile identifier

flat

$0.08/call

Fiber Job Postings Search
fiber_job_postings_search

Search for job postings with flexible filtering capabilities

flat

$1.00/call

Fiber Fetch Linkedin Post Reactions
fiber_fetch_linkedin_post_reactions

Fetches paginated reactions of a specific type for a LinkedIn post. Each page contains up to 10 reactions.

flat

$0.08/call

Connect Fiber AI API tools
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​

Cursor

Claude Code

Claude Desktop

Windsurf

VS Code

Cline

Roo Code

ChatGPT

Gemini CLI

Amazon Q

Goose

Augment

n8n

API / cURL

AI SDK

TypeScript SDK

Add to ~/.cursor/mcp.json
{
  "mcpServers": {
    "fiber": {
      "url": "https://fiber.mcp.xpay.sh/mcp?key=YOUR_API_KEY"
    }
  }
}
Or connect all tools

Access all tools (including Fiber AI API) through a single MCP connection.

https://mcp.xpay.sh/mcp?key=***
{
  "mcpServers": {
    "xpay": {
      "url": "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"
    }
  }
}
Agent Discovery

Machine-readable catalogs for LLM agents and automation.

llms.txt — Human-readable tool catalog
curl https://xpay.tools/llms.txt
agents.txt — Structured JSON for agents
curl https://xpay.tools/agents.txt
skill.md — Claude Code skill
curl https://xpay.tools/skill.md
Pricing

Pay per tool call. No subscriptions.

17 Fiber AI API tools available
Frequently Asked Questions

Fiber AI API is an API provider available on xpay with 17 tools. Reach anyone on the planet with verified contacts. Fiber AI delivers the most accurate contact data, period. All tools are pay-per-call with no monthly fees.

Fiber AI API tools are priced at $0.02–$3 per call. You only pay when you use a tool — there are no subscriptions or monthly fees. New accounts get $5 in free credits to try any tool.

Add xpay's MCP server to your AI client (Claude Code, Cursor, VS Code, Windsurf, or Cline) with the endpoint: https://mcp.xpay.sh/mcp?key=YOUR_API_KEY. Once connected, use xpay_discover to find Fiber AI API tools, then xpay_run to execute them. For Claude Code: claude mcp add --transport http xpay "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"

Fiber AI API provides 17 tools: fiber search companies from text, fiber find person by email, fiber kitchen sink company lookup, fiber fetch linkedin profile posts, fiber fetch linkedin post comments, and 12 more. Each tool can be called independently and has its own pricing.

No. With xpay, one API key gives you access to all 17 Fiber AI API tools plus 1000+ tools from 80+ other providers. You don't need to sign up for Fiber AI API's API directly — xpay handles authentication, billing, and rate limiting.

Yes. Every new xpay account gets $5 in free credits. You can use these credits to try any Fiber AI API tool — no credit card required. Sign up at xpay.tools to get started.

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