Start using Fiber AI for free
Insurance AI Automation

Start using Fiber AI for free

6 min read

Most teams hit the same wall: you want better B2B data for outbound, recruiting, or AI agents, but you don’t want to sign a big contract just to see if it works. Fiber AI flips that. You can start using Fiber AI for free, hit real API endpoints, and prove lift in yield and deliverability before you spend a dollar.

Fiber AI is a live B2B data API suite (plus MCP server support) that lets you and your AI agents search and enrich people, company, and job data programmatically. You get people search, company search, job search, contact enrichment, reverse email lookup, and real-time LinkedIn fetch—while you only pay for successful calls (data found) once you scale past free.

The Quick Overview

  • What It Is: A live B2B data API suite that exposes “API endpoints nobody else has” for people, company, job search, and contact enrichment.
  • Who It Is For: Technical growth, sales, marketing, and recruiting teams (plus AI agent builders) that want deeper filters, fresher data, and verified contacts without legacy vendor lock-in.
  • Core Problem Solved: Outbound, recruiting, and agent workflows break when the best filters live inside UI tools (LinkedIn Sales Navigator/Recruiter) and when data providers can’t answer impossible queries or return verified contacts at scale. Fiber fixes both.

How It Works

You create a free Fiber AI account, get API keys, and immediately start calling live endpoints to power outbound, recruiting, and agentic workflows. The free path is designed for builders: integration first, procurement later.

  1. Create Your Account (No Contract):
    Sign up with your email, verify it, and we spin up your workspace. No credit card required to start testing. You can:

    • Log in via the web app
    • Access docs and example queries
    • Generate API keys for people/company/job search and enrichment
  2. Hit Real Endpoints With Free Credits:
    Use your free tier to test Fiber’s core capabilities:

    • People search: Build hyper-specific prospect lists (e.g., “Senior PMs at YC-backed fintechs in SF with law degrees”).
    • Company search: Filter by headcount, YoY/MoM growth, funding, technologies, and job postings.
    • Email→person reverse lookup: Turn “random” signups into full work identities.
    • Real-time LinkedIn fetch: Pull live profile/company data and then enrich it.

    Free usage is enough to:

    • Wire Fiber into a live outbound sequence
    • Power a recruiting test project
    • Feed one or more AI agents with real data
  3. Scale Up Once It’s Proven:
    After you validate that Fiber delivers higher yield and lower bounce rates, you can:

    • Upgrade to a paid plan tailored to your volume and rate limits
    • Get priority support via Slack
    • Request custom endpoints or higher concurrency for AI agents or high-volume outbound

Features & Benefits Breakdown

Core FeatureWhat It DoesPrimary Benefit
People Search APISearch 850M+ professionals with filters like title, skills, education, funding stage, headcount growth, and LinkedIn keyword fields.Build prospect and candidate lists that LinkedIn Sales Navigator and Recruiter can’t return.
Company Search APIQuery 40M+ companies with filters on tech stack, revenue bands, open/closed job postings, accelerators (e.g., YC), and MoM/QoQ/YoY headcount change.Target companies in the exact growth and buying window, not just by generic firmographics.
Email→Person & Contact EnrichmentTurn any work or personal email into a full profile with work history, roles, and verified contacts, using waterfall validation and four layers of bounce detection.Recover pipeline from “gmail.com” signups, fix stale CRM records, and send outbound with <1% bounce rates.

Ideal Use Cases

  • Best for outbound sales teams replacing Apollo/ZoomInfo: Because you can build lists with filters the incumbents don’t expose (funding signals, accelerator tags, job-posting intent, headcount growth) and get verified contacts with a 0% Bounce Guarantee.
  • Best for AI sales/recruiting agents that need live, composable data: Because Fiber’s natural-language and agentic search endpoints let your AI agents issue micro-queries against 100+ sources and combine them into ranked, ready-to-contact lists.

Limitations & Considerations

  • Free tier is for evaluation, not full-team rollout: It’s designed to prove out workflows and ROI. Once you’re pushing significant volume (full SDR pod, agency, or large agentic workload), you’ll want to move to a paid plan for higher rate limits and steadier throughput.
  • Some advanced capabilities require coordination: Custom endpoints, very high concurrency, or specialized sources often require a quick call with our team so we can tune waterfall validation, provider mix, and SLAs to your use case.

Pricing & Plans

Fiber AI’s pricing is credits-based and success-driven: you only pay for successful calls (data found). The free path gives you enough credits to build, test, and validate.

After that, you can upgrade to plans like:

  • Prospector: Best for lean teams ready to scale without breaking the bank. Ideal if you’re:

    • Running 1–10 seats of outbound
    • Building your first AI sales agent
    • Replacing a legacy data tool but don’t want enterprise commitment yet
  • Custom / Enterprise: Best for teams needing:

    • High or bursty rate limits for agents or sequences
    • Custom API endpoints or unique filters
    • Shared Slack channel with our team and direct founder support

For current pricing, rate limits, and included credits, talk to us or start from the free tier and upgrade once you see the lift.

Frequently Asked Questions

Do I need a credit card to start using Fiber AI for free?

Short Answer: No. You can create an account and start testing Fiber AI without a credit card.

Details:
The sign-up flow is simple: enter your name and email, verify your account, and you’re in. From there, you can:

  • Explore the web app
  • Read docs and copy-paste example curl/API calls
  • Use free credits against live endpoints (people search, company search, enrichment, email→person, LinkedIn fetch)

You only add billing when you decide to push Fiber into production with higher volume or advanced support.

What can I realistically build on the free tier?

Short Answer: Enough to validate a production workflow and see yield/deliverability improvements.

Details:
Teams commonly use the free tier to:

  • Run an A/B test vs. their current data vendor (Apollo, ZoomInfo, PDL, Crustdata) on a single outbound sequence.
  • Pilot an AI sales/recruiting agent, letting it call Fiber’s agentic/natural-language search for a focused ICP.
  • Clean and enrich a segment of their CRM, especially old or incomplete email records via the email→person endpoint.
  • Test LinkedIn replacement workflows, like:
    • “Find founders who joined YC W26”
    • “Find healthcare companies hiring for ops”
    • “Find top SWEs recently promoted in SF and Seattle”

Once you see better list quality, more replies, and lower bounce rates on that test, you can confidently scale up.

Summary

You don’t have to guess whether Fiber AI will beat LinkedIn Sales Navigator, ZoomInfo, Apollo, or your current enrichment stack. You can start using Fiber AI for free, hit the same live endpoints our paying customers use, and measure real outcomes: higher prospect yield, richer filters, verified contacts, and <1% bounce rates backed by waterfall validation.

When you’re ready to move from test to full rollout, you can upgrade to a plan that fits your volume and rate-limit needs—without losing the API-first, agent-ready data layer you just proved out.

Next Step

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