.bio domains

The .bio domain is a versatile extension that reads as biography, biology, or organic life, giving it appeal across personal profiles, life sciences, and natural and organic brands. A name plus .bio suits a personal bio page and link hub, a biotech company, or an organic food brand equally well. Individuals use it for profile and portfolio pages, scientists and biotech firms for research sites, and sustainable brands for storefronts, all under a domain rich in meaning. Registration is open to anyone worldwide with no restrictions and follows standard yearly terms. Because the three letters carry several strong associations, brandable names remain available and flexible where a common gTLD would be crowded. For a personal profile, a life-sciences project, or a natural and organic brand, ending the address in .bio puts a meaningful, adaptable word directly into the domain.

.bio domain details

Type	Generic Top-Level Domain
Registry	Identity Digital
Registration	$56.00/yr
Renewal	$56.00/yr
WHOIS privacy	Free
DNSSEC	Supported
Registration period	1 to 10 years

Register .bio domains with an AI agent

OSIR is an AI-native registrar. Every .bio domain can be registered, renewed, and managed through natural language using Claude, ChatGPT, or any agent that supports the Model Context Protocol (MCP).

Frequently asked questions

How do I register a .bio domain?: Search for the .bio name you want, confirm it is available, and complete checkout - or ask an MCP-compatible AI assistant to do it for you. Registration through OSIR starts at $56.00/yr and includes free WHOIS privacy, DNSSEC, and anycast DNS.
Can I register a .bio domain with Claude or ChatGPT?: Yes. OSIR supports the Model Context Protocol (MCP) with 82 tools, so any MCP-compatible AI assistant - including Claude Desktop, Cursor, and Copilot - can search, register, and manage .bio domains on your behalf.
What is included with a .bio domain registration?: Every .bio domain registered through OSIR includes anycast DNS, DNSSEC support, free WHOIS privacy protection, registrar lock, and full API and MCP access. Registration starts at $56.00/yr.
How much does it cost to renew a .bio domain?: .bio renewal is $56.00/yr through OSIR. Prices include ICANN fees and a 3% or $0.30 processing fee (whichever is greater). There are no hidden fees.