Agent-readiness
auth.md
MCP server
llms.txt
OpenAPI
Auth: api_key
Rankings
Overview
Fiber AI is a YC S23 B2B data API platform for AI sales, recruiting, marketing and GTM products.
Best for: AI sales/recruiting product builders, RevOps and growth teams that need fresh B2B data, contact enrichment, advanced prospect search, job-change signals and webhook-driven workflows at API scale.
Pricing
Prospector
$300/mo
Growth
$900/mo
Enterprise
$2400/mo
Bulk API Search
$2000/mo
Hosted, Private Database
Custom
Features
- Company, people and job search APIs with advanced filters
- Reverse email lookup from work or personal email to person profile
- Contact enrichment for work emails, personal emails and phone numbers
- Live LinkedIn company and profile enrichment
- Email bounce detection and verification via waterfalls
- Webhook alerts for enrichment, lookup, search and monitoring events
- Job-change tracking and saved-search monitoring
- Bulk API search for companies, jobs, people, combined search and AI natural-language search
- TypeScript and Python SDKs plus OpenAPI documentation
- MCP server and agent-facing docs for Cursor, Claude, Codex, ChatGPT and Copilot workflows
Pros
- Large claimed B2B coverage with fresh company, people and jobs data
- Developer-friendly API, SDK, webhook and MCP surface area
- Transparent published pricing for several tiers
- Strong fit for embedding data/search/enrichment into AI GTM or recruiting products
Cons
- Not a full CRM, sales engagement platform or inbox sequencer by itself
- Entry self-serve pricing starts at $300/mo, which may be high for individuals
- Some enterprise needs such as private hosted databases, custom endpoints and higher limits require custom pricing
- B2B contact-data usage still requires buyer diligence around compliance, consent and deliverability