OSIR · The AI-Native Domain Registrar

The Domain Name MCP Server That Registers Domains

OSIR runs a native Model Context Protocol (MCP) server with 105 tools, so Claude, ChatGPT, Cursor, and any MCP-compatible assistant can register and manage domains, DNS, VPS, and email through natural language. To connect Claude, open Settings then Connectors, click Add custom connector, and enter the name OSIR with the remote MCP server URL https://be.osir.com/mcp/http, choosing No sign-in under Authentication: lookups work anonymously and account actions start a login inside the chat. To stay signed in across chats, use https://be.osir.com/mcp/oauth with the public client ID mcp-client. Full walkthrough: Connect OSIR to Claude.

105 MCP tools: availability search, registration, renewal, DNS, transfers
Add as a custom connector in Claude (Settings then Connectors, No sign-in or OAuth)
Same operations available to autonomous agents over the A2A protocol

All 105 tools

The OSIR MCP server exposes 105 tools across 10 categories, plus 11 built-in prompts for common workflows such as finding and registering a name, setting up DNS for a new site, or designing and publishing a website.

Domains & transfers (23)

Search, register, renew, transfer, and configure domains across 450+ TLDs.

checkDomainAvailability checkKeywordAvailability checkKeywordAvailabilitySummary validateDomainName registerDomain renewDomain transferDomain initiateTransfer cancelTransfer getTransferQuote getTransferStatus listPendingTransfers lockDomain unlockDomain updateDomainAutoRenew updateDomainPrivacy updateNameservers getDomainInfo getDomainPricing getDomainExtensions getDomainAuditTrail listUserDomains listCategorizedTlds

Domain name suggestions (6)

Generate brandable, available name ideas with AI.

generateDomainSuggestions bulkDomainSuggestions suggestAlternatives addPrefixToDomain addSuffixToDomain spinDomainWords

DNS (6)

Full DNS record management and zone setup.

createDnsRecord getDnsRecord listDnsRecords updateDnsRecord deleteDnsRecord initializeDnsZone

Nameserver hosts (4)

checkHostAvailability createHost getHostsForDomain deleteHost

Contacts (6)

Manage registrant, admin, and technical contact profiles.

createContact getContact listContacts updateContact deleteContact getContactsForDomain

VPS & servers (16)

Order a VPS, build it with an OS and SSH keys, operate it, and browse dedicated servers.

orderVps buildVpsInstance listVpsOsTemplates listVpsPackages getVpsPackageDetails listVpsLocations listMyVpsInstances countMyVpsInstances getVpsInstanceDetails deleteVpsInstance changeVpsPaymentTerm loginToVpsPanel addSshKey listMySshKeys deleteSshKey getDedicatedServerCatalog

Apps & hosting (13)

Design and publish websites by chat, deploy and operate apps: upload, deploy, status, logs, secrets, and managed databases.

osirSiteDesignBrief osirSitePublish osirAppCreateUpload osirAppDeploy osirAppList osirAppStatus osirAppLogs osirAppSetSecret osirAppProvisionDatabase osirAppDelete osirAppMoveToOwned osirAppGetSource getHostingBundle

Email hosting (11)

Enable email on a domain, verify DNS, and create and manage mailboxes.

listMailPlans getMailboxQuote enableMailDomain listMailDomains getMailDnsRecords verifyMailDns createMailbox listMailboxes setMailboxPassword deleteMailbox getMailboxUsage

Billing & payments (8)

Check balance, view invoices, preview fees, and pay.

getAccountBalance listInvoices getInvoiceDetails getInvoiceStatistics payInvoice createPaymentSession previewPaymentFees getPaymentTransactions

Account & platform (12)

Profile, authentication, audit logs, and confirmed-action execution.

createAccount verifyAccount getMyProfile getAccountSummary getAuthStatus loginWithDevice checkDeviceLoginStatus logout getMyAuditLogs getRecentActivity getProductCatalog executeConfirmedAction

Setup steps for both connection modes are in Connect OSIR to Claude, and the AI assistant FAQ covers agent safety, confirmation gates, and what an assistant can do without an account.