How do I get a Fiber AI API key?

Getting a Fiber AI API key takes a few minutes and gives you live access to people, company, job, and LinkedIn data you can wire straight into your product, growth stack, or AI agents. Here’s exactly how to get your key, what to expect once you’re in, and how to keep it secure.

The Quick Overview

What It Is: A secure credential that authenticates your requests to Fiber AI’s live B2B data APIs (and MCP server), so you can programmatically search and enrich people, companies, and jobs.
Who It Is For: Developers, growth teams, RevOps, recruiting teams, and AI agent builders who want API endpoints nobody else has and only want to pay for successful data calls.
Core Problem Solved: You stop being blocked by UI-only tools like LinkedIn Sales Navigator/Recruiter and slow legacy data vendors; instead, your stack gets direct, verified data over API with credits that only burn on data found.

How It Works

You create a Fiber AI account, verify your email, then generate an API key from your dashboard. That key authenticates calls to endpoints like people_search, company_search, email_to_person, contact_enrich, and real-time LinkedIn fetch. You can rotate keys, manage usage, and connect them to your agents or backend services.

Create Your Fiber AI Account: Sign up with your work email so we can tie usage, credits, and support to the right team.
Generate Your API Key in the Dashboard: Once logged in, you create a key that you’ll use in your HTTP authorization header or MCP config.
Plug It into Your Stack and Monitor Usage: Add the key to your app, workflows, or AI agents, then watch credit consumption and refine queries for better yield and lower cost.

Step-by-Step: How to Get a Fiber AI API Key

1. Sign up for Fiber AI

Go to https://fiber.ai.
Click Get started (top right).
On the “Create your account” screen, enter:
- First name
- Last name
- Email address (ideally your work email)
Click Continue and follow any verification steps sent to your email.

If you already have an account, click Log in instead and skip to the dashboard step.

2. Log in to your dashboard

Visit https://fiber.ai and click Log in.
On the “Sign in to Fiber AI” page, enter:
- Email address
- Password
Click Continue to access your account.

Once you’re in, you’ll land on your dashboard where you can manage credits, see docs, and generate API keys.

3. Generate an API key

Inside the dashboard (exact navigation may evolve as we ship new features):

Go to your API or Developer section.
Look for API Keys or Access Tokens.
Click Create new API key.
Optionally:
- Name the key (e.g., prod-backend, staging-agents, growth-zapier).
- Scope/label it based on environment or use case.
Save the key somewhere secure (password manager, environment variables). You won’t want to expose this in client-side code or public repos.

If you don’t see API key options in your dashboard (or are unsure where to click), book time via the demo link at the bottom of this page—we’ll walk you through it and make sure you’re set up correctly.

4. Authenticate your first API call

Once you have your key, you’ll attach it in the authorization header when calling Fiber endpoints.

Example curl pattern (pseudo):

curl -X POST https://api.fiber.ai/v1/people_search \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_FIBER_API_KEY" \
  -d '{
    "title": ["Head of Growth", "VP Growth"],
    "locations": ["San Francisco Bay Area", "New York City"],
    "company_headcount": {"min": 50, "max": 1000},
    "funding_stage": ["Series A", "Series B", "Series C"],
    "technologies": ["Salesforce", "HubSpot"]
  }'

You’ll get:

Hyper-specific profiles that LinkedIn Sales Navigator can’t reach
Verified contact data (work email, sometimes personal, phones)
Up-to-date signals like headcount growth and job changes

For AI agents using MCP, you’ll instead plug the API key into your MCP server configuration so the agent can hit Fiber endpoints via tools.

Features & Benefits Breakdown

Core Feature	What It Does	Primary Benefit
Unified API key auth	One key authenticates people, company, job, email→person, and LinkedIn APIs	Simple integration; fewer secrets to manage
Success-based billing	Credits only burn when data is found	Predictable cost; 4x cheaper than Apollo/ZoomInfo in practice
High-veracity contacts	Uses waterfall validation + four layers of bounce detection	<1% bounce rates; protects domain reputation

Using Your API Key with Fiber’s “NOBODY Has This” Endpoints

Once you’ve got the key, you unlock the endpoints that make Fiber different from Apollo, ZoomInfo, People Data Labs, and Crustdata.

Email → Person (reverse lookup)

Turn a work or personal email into a full identity and work profile.

Example: Enrich inbound signups who used @gmail.com addresses.

curl -X POST https://api.fiber.ai/v1/email_to_person \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_FIBER_API_KEY" \
  -d '{
    "email": "founder123@gmail.com"
  }'

Use it to:

Tie personal email signups back to work identities
Enrich old CRM contacts with updated roles and companies
Power retargeting and lead scoring without guessing

People Search (agentic and filter-based)

Run “LinkedIn Recruiter on steroids” via API.

Example: “Senior PMs at legal tech startups in SF/Seattle, recently promoted, with law degrees.”

curl -X POST https://api.fiber.ai/v1/people_search \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_FIBER_API_KEY" \
  -d '{
    "titles": ["Senior Product Manager"],
    "industries": ["Legal Tech"],
    "locations": ["San Francisco Bay Area", "Seattle"],
    "education_keywords": ["Juris Doctor", "JD", "law"],
    "promotion_window_months": 12,
    "company_headcount": {"min": 20, "max": 500}
  }'

This is where Fiber replaces LinkedIn Recruiter/Sales Navigator for programmatic use cases.

Company Search

Find companies using the exact signals your outbound or agents need:

YC / accelerator flags
Funding stage & round recency
Headcount MoM/QoQ/YoY growth
Specific tech stack from job postings
Open roles for specific functions

Example: Seed–Series B YC-backed SaaS companies hiring for RevOps and growing 20%+ YoY.

curl -X POST https://api.fiber.ai/v1/company_search \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_FIBER_API_KEY" \
  -d '{
    "tags": ["yc"],
    "funding_stages": ["Seed", "Series A", "Series B"],
    "job_keywords": ["RevOps", "Revenue Operations"],
    "headcount_growth_yoy_min": 20,
    "industry": ["SaaS"]
  }'

Real-Time LinkedIn Fetch

Live fetch of LinkedIn profiles or companies for AI agents and workflows:

Pull latest headline, summary, roles, and activity
Grab commenters/reactors on posts and enrich them
Keep CRM/personas up to date without manual scraping

Your same API key authenticates these calls—no separate credential needed.

Ideal Use Cases

Best for AI sales agents and outbound engines: Because they need always-fresh people/company data, not CSV exports, and Fiber’s API key unlocks agentic search across 850M+ professionals and 40M+ companies with success-based pricing.
Best for recruiting and talent intelligence: Because recruiters can replicate and surpass LinkedIn Recruiter via API, using filters like promotions, specific education, and headcount growth that LinkedIn doesn’t expose programmatically.

Limitations & Considerations

Server-side usage required: Your API key is sensitive. Don’t embed it in client-side JavaScript or public repos; instead, keep it in environment variables, backend services, or secure secret managers.
Rate limits & plan caps: Each plan has rate limits and credit allocations. If you’re building high-throughput systems (e.g., AI agents doing thousands of micro-queries/hour), you’ll likely want a higher tier with custom limits.

Pricing & Plans

Fiber AI runs on a credit-based, success-first model: you only pay for successful calls where data is found. Teams commonly see 80%+ cost savings vs. legacy vendors like ZoomInfo, Apollo, and PDL because they’re not burning spend on empty responses or bloated licenses.

From a plan perspective, think in terms of:

Builder / Startup: Lower monthly credit allotment and standard rate limits.
Growth / Enterprise: High credit volumes, custom endpoints, higher rate limits, and priority Slack support directly with the Fiber team.

Exact pricing and quotas evolve as we add endpoints and scale capacity, so the best way to get the most accurate tier for your use case is to talk with us directly.

Growth Plan: Best for teams (growth, RevOps, recruiting) needing consistent monthly volumes, multi-environment keys, and room to scale agentic search.
Enterprise / Custom Plan: Best for companies needing very high throughput, SLAs, custom endpoints (e.g., specific GEO patterns or niche signals), and deeper integration support.

Frequently Asked Questions

Do I need a paid account to get a Fiber AI API key?

Short Answer: You can get started without committing to a large contract, but real value comes from production usage on a paid plan.

Details:
You’ll create an account and can often explore endpoints in a low-friction way before scaling. Once you’re ready to power outbound engines, recruiting workflows, or AI agents at volume, you’ll move to a paid plan so you get enough credits, higher rate limits, and direct support. Either way, the mechanism to get an API key is the same: sign up, log in, generate the key from your dashboard.

Can I use one Fiber AI API key across multiple environments?

Short Answer: Technically yes, but operationally it’s better to have separate keys.

Details:
For security and observability, treat keys like you treat database credentials:

Use separate keys for production, staging, and local.
Name keys clearly in the dashboard so you can track where usage is coming from.
Rotate or revoke keys quickly if an environment is compromised.

You can generate multiple keys under the same account, so your production agents, growth automations, and internal tools don’t share the same secret.

Summary

Getting a Fiber AI API key is the unlock that lets you replace UI-bound tools like LinkedIn Sales Navigator, ZoomInfo, Apollo, and Crustdata with live, verified data over API. You sign up, log in, generate a key, and immediately start hitting endpoints like people_search, company_search, email_to_person, and real-time LinkedIn fetch. Your key is your single credential for everything: agentic search, enrichment, reverse email lookup, and LinkedIn live fetch—backed by waterfall validation, four layers of bounce detection, and a success-based pricing model where you only pay for data found.

Next Step

Get Started