claim_username — Proof Holdings MCP Tool
claim_username
(claim username) is one of 176 tools on the
Proof Holdings
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call claim_username from your client
- Claude Code Proof Holdings claim_username run in your project directory
- Claude Desktop Proof Holdings claim_username ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Proof Holdings claim_username ~/.cursor/mcp.json
- VS Code Proof Holdings claim_username .vscode/mcp.json
- Zed Proof Holdings claim_username ~/.config/zed/settings.json
- Windsurf Proof Holdings claim_username ~/.codeium/windsurf/mcp_config.json
- Cline Proof Holdings claim_username ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Proof Holdings claim_username ~/.gemini/settings.json
- Grok Proof Holdings claim_username .mcp.json (in your project root)
- ChatGPT Proof Holdings claim_username Settings → Connectors → Advanced → Developer mode
- Claude.ai Proof Holdings claim_username Settings → Connectors → Add custom connector
- LangChain Proof Holdings claim_username pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http mcp-server https://api.proof.holdings/mcpOther tools on this server
- create_verification
- get_verification
- list_verifications
- trigger_verification
- submit_verification_code
- resend_verification
- test_verify
- list_verified_users
- get_verified_user
- start_domain_verification
- check_domain_verification
- wait_for_verification
- create_multi_channel_verification
- get_multi_channel_verification_status
- create_verification_request
- get_verification_request
- get_request_proofs
- list_verification_requests
- get_request_by_reference
- cancel_verification_request
- wait_for_request
- validate_proof
- get_proof_status
- revoke_proof
- list_revoked_proofs
- create_session
- get_session
- wait_for_session
- list_assets
- get_asset
- revoke_asset
- get_current_user
- list_auth_sessions
- revoke_auth_session
- get_usage
- get_platform_summary
- get_settings
- update_settings
- export_data
- search
- get_self_api_key
- get_api_key_usage
- list_templates
- get_default_templates
- get_template
- update_template
- delete_template
- preview_template
- render_template
- get_webhook_stats
- list_webhook_deliveries
- get_webhook_delivery
- retry_webhook_delivery
- get_subscription
- list_profiles
- create_profile
- get_profile
- update_profile
- delete_profile
- set_primary_profile
- list_profile_templates
- update_profile_template
- delete_profile_template
- preview_profile_template
- update_profile_proofs
- get_my_profile
- update_my_profile
- get_profile_assets
- list_emails
- remove_email
- set_primary_email
- start_add_email
- get_add_email_status
- verify_email_otp
- resend_email_otp
- list_phones
- remove_phone
- set_primary_phone
- start_add_phone
- get_add_phone_status
- list_api_keys
- create_api_key
- revoke_api_key
- regenerate_api_key
- start_2fa
- get_2fa_status
- verify_2fa
- verify_2fa_magic_link
- wait_for_2fa
- list_domains
- add_domain
- get_domain
- delete_domain
- verify_domain
- connect_cloudflare
- connect_godaddy
- connect_dns_provider
- add_verification_provider
- get_dns_providers
- verify_domain_with_credentials
- check_domain_credentials
- start_domain_email_verification
- confirm_domain_email_code
- resend_domain_email
- setup_domain_email
- check_domain_email_status
- list_dns_credentials
- create_dns_credential
- delete_dns_credential
- list_my_requests
- list_incoming_requests
- create_user_request
- claim_request_assets
- cancel_user_request
- extend_request
- share_request_email
- start_user_domain_verification
- get_user_domain_verification_status
- check_user_domain_verification
- update_public_proofs
- create_authorization
- get_authorization
- list_authorizations
- revoke_authorization
- export_authorizations
- create_confirmation
- get_confirmation
- list_confirmations
- get_confirmation_approval_link
- wait_for_confirmation
- create_hitl
- get_hitl
- list_hitls
- update_hitl
- delete_hitl
- request_hitl_authorization
- create_chat_id_discovery
- poll_chat_id_discovery
- wait_for_chat_id_discovery
- get_hitl_keys
- upload_hitl_keys
- delete_hitl_keys
- add_challenger
- list_challengers
- remove_challenger
- invite_challenger
- trigger_drill
- create_identity_challenge
- get_identity_challenge
- create_circle
- list_circles
- get_circle
- update_circle
- delete_circle
- add_circle_member
- list_circle_members
- invite_circle_member
- create_circle_member_drill
- remove_circle_member
- add_circle_member_channel
- list_circle_member_channels
- remove_circle_member_channel
- create_delegation
- list_delegations
- get_delegation
- revoke_delegation
- verify_delegation
- verify_delegations
- start_login
- wait_for_login
- create_account
- send_account_email
- wait_for_account_creation
- start_2fa_for_action
- render_auth_link
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.