Start using Fiber AI for free

Most teams switch to Fiber AI because they’re tired of stale data, broken filters, and bloated contracts—and they want to prove a better data layer works before they commit dollars. That’s exactly why we let you start using Fiber AI for free.

Fiber AI is a live B2B data API suite that lets you and your AI agents search and enrich people, company, and job data in real time. You get API endpoints nobody else has (email→person, partial-identity search, live LinkedIn fetch) and you only pay for successful calls once you move past free usage.

The Quick Overview

• What It Is: A live B2B data API suite (plus MCP server support) for people, company, and job search, enrichment, and real-time LinkedIn fetch.
• Who It Is For: Growth, outbound, and recruiting teams—and the engineers building AI sales agents or internal tools for them.
• Core Problem Solved: LinkedIn and legacy data vendors hide the best filters inside UIs and ship stale data that bounces; Fiber AI gives you always-fresh, API-native access to the same (and better) filters with verified contacts.

How It Works

You create a Fiber AI account, grab an API key, and immediately start hitting live endpoints for people search, company search, job search, reverse email lookup, contact enrichment, and LinkedIn live fetch. Free usage is designed so you can wire Fiber into your stack, test agentic workflows, and validate bounce rates before paying a cent.

1. Sign Up & Get Your API Key:

   • Go to fiber.ai and click Get started.
   • Enter your first name, last name, and email, then continue.
   • Confirm your email if prompted, then sign in to access the dashboard and API key.

2. Test Core Endpoints With Free Calls:

   • Use your API key to call people/company/job search endpoints.
   • Try the email→person reverse lookup to resolve old CRM records and inbound signups.
   • Run LinkedIn live fetch to test real-time profile and company pulls.

3. Integrate Into Workflows & Scale:

   • Wire Fiber into your outbound sequences, recruiting stack, or AI sales/recruiter agents.
   • Measure verified contact yield and bounce rate on a small batch.
   • Once it proves out, upgrade to a paid plan and scale list-building or agentic workflows with higher rate limits.

Features & Benefits Breakdown

Core Feature	What It Does	Primary Benefit
People / Company / Job Search APIs	Search 850M+ professionals, 40M+ companies, and 30M+ jobs with filters LinkedIn and Apollo don’t expose (funding, accelerators like YC, tech stack, headcount growth, job changes, education).	Build hyper-specific prospect and candidate lists that legacy tools can’t find, directly via API or through AI agents.
Email→Person & Contact Enrichment	Turn a work or personal email into a full work identity (title, company, location, work history) and verified contact details, using 16+ providers and waterfall validation.	Recover value from inbound signups and old CRM rows while keeping bounce rates <1% and protecting deliverability.
Real-Time LinkedIn Live Fetch	Pull live LinkedIn profile or company data (including posts and engagement) on demand, not from a stale warehouse.	Power AI sales agents and targeting workflows with up-to-date role changes, activity, and audience lists.

Ideal Use Cases

• Best for outbound teams replacing Apollo/ZoomInfo: Because you can search by funding round, accelerator (YC, Techstars), headcount growth, open roles, tech stack, and role constraints in one API call, then enrich with verified work emails using waterfall validation.
• Best for AI agent builders and recruiting teams: Because Fiber gives you natural-language and structured search endpoints plus LinkedIn live fetch, so agents can build and refresh prospect/candidate lists programmatically instead of scraping or screen-scraping UIs.

Limitations & Considerations

• Free usage is for evaluation, not perpetual bulk export: It’s designed to validate coverage, precision, and bounce rates—not to indefinitely run your full outbound engine for free. Once you see it works, you’ll need a paid tier for higher volume and rate limits.
• Some advanced/custom endpoints require a plan or conversation: For very high-volume, custom filters, or bespoke endpoints, we typically move you to a paid plan with custom credits and dedicated support.

Pricing & Plans

Fiber AI pricing is credit-based: you only pay for successful calls (data found). Free usage lets you test the APIs and verify that we beat your current vendor’s coverage and bounce rate before you spend.

Typical structure:

• A free evaluation tier when you first sign up so you can:

  • Pull live LinkedIn profiles and companies.
  • Run people/company/job searches against your real ICP.
  • Test email→person enrichment on your own CRM or inbound leads.

• Prospector: Best for lean teams needing high-yield outbound without breaking the bank. Starts around $300/mo ($250/mo paid annually) and is built for teams ready to scale outbound, staffing, or AI agents with higher volumes and rate limits.

Larger teams (RevOps, agencies, AI platforms) usually move to custom credit bundles with dedicated Slack support, custom rate limits, and the option to request new endpoints.

Frequently Asked Questions

How do I actually start using Fiber AI for free?

Short Answer: Create an account on fiber.ai, sign in, grab your API key, and start calling the APIs with the included free usage.

Details:
Go to https://fiber.ai and click Get started. On the sign-up page, enter your first name, last name, and email address and continue. Once your account is created (“Just a second! We are setting up your account”), sign in with your email and password. From the dashboard, you’ll get your API key and documentation links so you can start hitting people search, company search, job search, email→person, and LinkedIn live fetch endpoints immediately. The free usage is enough to integrate locally, test a proof-of-concept workflow, and validate that Fiber returns more and better contacts than your current vendor.

What can I test on the free tier to know if Fiber can replace my current tools?

Short Answer: Rebuild one real workflow—like your top outbound campaign or a critical recruiting search—end-to-end with Fiber’s APIs and compare yield and bounce rate.

Details:
Pick a specific, non-trivial query that your current tools struggle with. For example:

• “Senior PMs at US legal tech startups (11–200 employees) using React, funded in the last 18 months, with promotions in the last 12 months.”
• “Healthcare companies in the Midwest hiring for operations roles, with YoY headcount growth >20%.”
• “Founders who went through YC W24, now hiring their first GTM lead.”

Use Fiber’s search endpoints to run that exact profile, then:

1. Export the list and compare it against Apollo/ZoomInfo/LinkedIn Sales Navigator for coverage and precision.
2. Use contact enrichment to pull work emails and phones, and send a small, controlled campaign.
3. Measure bounce rate, open rate, and reply rate.

Customers typically see higher match rates, <1% bounces (backed by our four-layer bounce detection and waterfall validation), and more net-new targets that LinkedIn and legacy vendors simply can’t surface.

Summary

Starting with Fiber AI for free lets you prove, with real data and real campaigns, that a live, API-native data layer beats scripts bolted onto LinkedIn Sales Navigator or stale warehouses from ZoomInfo/Apollo. You get access to unique endpoints—email→person, partial-identity search, LinkedIn live fetch—plus high-yield person/company/job search filters that your AI agents and outbound teams can’t get anywhere else.

Use the free tier to wire Fiber into your stack, rebuild one or two critical workflows, and verify that we deliver more targets and fewer bounces at a lower cost per meeting. Once you see it, scaling up is just a matter of moving to the right credit bundle.

Next Step

Get Started