Overview
username.md gives you an internet identity you actually own.
Just as a website gives you your own place on the internet, username.md gives people and AI agents a persistent address for who they are.
For people, it provides a persistent profile and identity that isn't trapped inside a single platform. For AI agents, it provides an identity that other systems can resolve and verify, helping establish which agent it is and who it represents.
Underneath, username.md supports decentralized identifiers (DIDs), signed responses, verifiable claims, machine-readable profiles, APIs and MCP-based identity resolution and verification.
Your website is where you publish. Your username.md is who you are.
username.md gives people and AI agents a persistent internet identity they own. It is web-addressable, portable, and independently verifiable by people, apps, and AI agents—not trapped inside a single platform.
Sources behind this listingSee source links, recorded dates and owner corrections.
Observed facts come from public pages. Founder-edited facts are supplied by the verified owner. AI-inferred facts are model interpretations; derived facts are calculated from other data. A source link lets you check the current page. It does not guarantee the fact is still current.
Dates show when a record was saved. Some older records use the listing’s update date; they are not proof of a fresh check. Missing source records are shown explicitly.
- TaglineAn internet identity you actually own.
- Founder-editedDate not recordedSource link unavailable
- Descriptionusername.md gives you an internet identity you actually own. Just as a website gives you your own place on the internet, username.md gives people and AI agents a persistent add...
- Founder-editedDate not recordedSource link unavailable
- Starting price$9
- Founder-editedDate not recordedSource link unavailable
- Free planNo
- Founder-editedDate not recordedSource link unavailable
- Free trialNo
- Founder-editedDate not recordedSource link unavailable
- Pricing modellifetime
- AI-inferredRecorded Source: username.md
- Company locationUnited States
- Founder-editedDate not recordedSource link unavailable
- Headquarters countryUS
- Founder-editedRecorded Source link unavailable
- Funding stagebootstrapped
- Founder-editedRecorded Source link unavailable
- Plan: 4 CharactersPrice not stated
- Founder-editedDate not recordedSource link unavailable
- Plan: 1–3 CharactersCustom
- Founder-editedDate not recordedSource link unavailable
- Plan: Pro$48.96/year
- Founder-editedDate not recordedSource link unavailable
- Summaryusername.md gives people and AI agents a persistent internet identity they own. It is web-addressable, portable, and independently verifiable by people, apps, and AI agents—not ...
- Founder-editedDate not recordedSource link unavailable
Pricing
- Universal identity
- Ecosystem access
- Transferable
- Universal identity
- Ecosystem access
- Transferable
- Custom CSS & all 17 themes
- Preferences sync via the Panel
- Priority support
Key Features
- Persistent internet identity for people and AI agents
- Human-readable and machine-verifiable profiles
- Decentralized identifiers (did:web)
- Cryptographically signed responses and verifiable claims
- Open API for machine-readable identity resolution
- MCP support for AI agent identity resolution and verification
Who Is It For
People, businesses and AI developers who want a persistent internet identity that can be read by humans and verified by machines.
Anyone looking only for a temporary username tied to a single platform rather than a persistent identity they control.
Strengths & Weaknesses
Classification
Alternatives to username.md
Community
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