BuiltWith tools for AI agents

Call BuiltWith's API on your own BuiltWith account. Connect it once in the Relvo app; Relvo adds its credentials and charges no usage fee.

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Compose the request, copy the prompt, and run it in your agent. It runs on your connected BuiltWith account.

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BuiltWith
Open Relvo
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Supported BuiltWith tools

Every BuiltWith endpoint Relvo can call on your connected account, with no Relvo usage fee.

23 tools
Get account limits and credit costsbuiltwith__get_account_infoBuiltWithyour accountGet API credit usagebuiltwith__get_usageBuiltWithyour accountLook up a domain's technologies and metadatabuiltwith__lookup_domainBuiltWithyour accountSubmit a bulk domain lookupbuiltwith__submit_bulk_domain_lookupBuiltWithyour accountGet bulk lookup job statusbuiltwith__get_bulk_domain_lookup_statusBuiltWithyour accountGet bulk lookup job resultsbuiltwith__get_bulk_domain_lookup_resultBuiltWithyour accountGet technology additions and removalsbuiltwith__get_technology_changesBuiltWithyour accountList sites using a technologybuiltwith__list_sites_using_technologyBuiltWithyour accountAsk a natural language website list questionbuiltwith__ask_website_listBuiltWithyour accountGet relationships between sitesbuiltwith__get_site_relationshipsBuiltWithyour accountGet free technology group summarybuiltwith__get_free_domain_summaryBuiltWithyour accountFind domains by company namebuiltwith__find_domains_by_companyBuiltWithyour accountFind domains related to an IP or attributebuiltwith__find_domains_by_tagBuiltWithyour accountGet technology recommendationsbuiltwith__get_technology_recommendationsBuiltWithyour accountGet redirect historybuiltwith__get_redirect_historyBuiltWithyour accountGet keywords for a domainbuiltwith__get_domain_keywordsBuiltWithyour accountSearch websites containing a keywordbuiltwith__search_sites_by_keywordBuiltWithyour accountGet technology trend metadatabuiltwith__get_technology_trendsBuiltWithyour accountSearch websites selling productsbuiltwith__search_sites_by_productBuiltWithyour accountGet trust and fraud signalsbuiltwith__get_domain_trustBuiltWithyour accountSemantic search of technologies and categoriesbuiltwith__search_technologiesBuiltWithyour accountGet company registration numbersbuiltwith__get_company_registrationsBuiltWithyour accountSearch the MCP server registrybuiltwith__search_mcp_registryBuiltWithyour account

Set up Relvo for BuiltWith

Pick the client you use, then pick a route: Automatic is that client's own link, command or prompt, and Manual is the same install done by hand. Both end at the same OAuth sign-in, with every tool on the BuiltWith shelf behind one connector.

Automatic way

Open the plugin page with the details ready.

ChatGPT takes custom MCP servers as plugins. The button opens the right page; copy the name and URL into the form and authorise once.

Open ChatGPT plugins

  1. Add a custom MCP server

    On the plugins page, click + and choose Add custom MCP server.

  2. Fill in the connection

    NameRelvo
    Connectionhttps://app.relvo.si/mcp

  3. Authorise and create

    Pick OAuth, tick the confirmation and click Create as a plugin. Approve Relvo in the browser window ChatGPT opens.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

Custom MCP servers are set up in ChatGPT on the web, not in the mobile app. Connect once and every chat can call Relvo.

Manual way

Set it up from ChatGPT's settings.

The same connector, reached through the settings menu instead of the plugin page.

  1. Open Apps & Connectors

    In ChatGPT, open Settings → Apps & Connectors and create a new custom connector.

  2. Name it Relvo

    NameRelvo

  3. Point it at Relvo

    Connectionhttps://app.relvo.si/mcp

  4. Authenticate

    Choose OAuth, continue, and approve Relvo in the browser. ChatGPT saves the connector to your account.

  5. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Automatic way

One link fills in the dialog.

On a desktop browser this opens Claude's Add custom connector form with Relvo's name and MCP URL already in place. Click Add and sign in — there is nothing to type.

Add the Relvo connector

  1. Open the dialog

    Click the button above in the browser where you are signed in to Claude. Customize → Connectors opens with the custom-connector form ready.

  2. Add and authorise

    Click Add, then choose Sign in now under Authentication. Relvo signs you in over OAuth, so no token or API key is pasted into Claude.

  3. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

Manual way

The same connector, typed by hand.

Use this on a phone, in a locked-down workspace, or whenever you would rather add the connector through Claude's own menu.

  1. Open Connectors

    In Claude, go to Customize → Connectors and choose + Add → Add custom connector.

  2. Name the connector

    NameRelvo

  3. Paste the MCP URL

    Server URLhttps://app.relvo.si/mcp

  4. Sign in

    Click Add, choose Sign in now under Authentication, and approve Relvo in the OAuth window. The Relvo tools appear under the connector.

  5. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Automatic way

One command, then one sign-in.

The CLI registers Relvo with HTTP transport and writes it into your Claude Code config; authentication happens in the browser.

  1. Run the command

    BASH
    claude mcp add --transport http relvo https://app.relvo.si/mcp

  2. Authenticate once

    Open a session and run /mcp. Choose Relvo → Authenticate; Claude Code opens Relvo's OAuth page and stores the token for the project.

  3. Check the list

    BASH
    claude mcp list

    Relvo shows as connected, with every catalog tool behind it.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

The command uses local scope by default. Add --scope user to make Relvo available in every project, or --scope project to share it through the repository.

Manual way

Write it into .mcp.json.

Project scope lives in a file, so the whole team gets Relvo without running a command.

  1. Add the server

    JSON · .mcp.json
    {
  "mcpServers": {
    "relvo": {
      "type": "http",
      "url": "https://app.relvo.si/mcp"
    }
  }
}

    Create .mcp.json in the project root and add relvo as an HTTP server.

  2. Reload and sign in

    Start a Claude Code session, run /mcp, choose Relvo → Authenticate, then reload. The tools are available in that project.

  3. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

The same entry works for every project when it is added at user scope instead of project scope. All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Automatic way

Hand the setup to Hermes.

Hermes can edit its own config, so one instruction is enough: it writes Relvo into mcp_servers, reloads, and reports the tools it can now call.

  1. Copy the setup prompt

    PROMPT
    Add Relvo as a remote MCP server named "relvo": url https://app.relvo.si/mcp, auth oauth. Follow https://app.relvo.si/SKILL.md, reload MCP, then list the Relvo tools.

  2. Paste it into a Hermes session

    Hermes adds the remote server to ~/.hermes/config.yaml and reloads its MCP connections.

  3. Approve the sign-in

    Open the OAuth link Hermes prints and approve Relvo once. The token is cached, so later sessions do not ask again.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

Manual way

Add it to ~/.hermes/config.yaml.

Two settings and one reload — the same entry Hermes would write itself.

  1. Open the config

    Edit ~/.hermes/config.yaml, the file Hermes reads at start-up.

  2. Add the server

    YAML
    mcp_servers:
  Relvo:
    url: https://app.relvo.si/mcp
    auth: oauth

  3. Reload and sign in

    In a session, run /reload-mcp, then approve the OAuth prompt Hermes shows. Tokens are cached under ~/.hermes/mcp-tokens/.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Automatic way

Hand the install to Cursor.

The button opens Cursor's MCP install dialog with the server name and URL already attached.

Add Relvo to Cursor

  1. Open the install prompt

    Click the button on the machine where Cursor is installed. Cursor receives a server named relvo pointing at https://app.relvo.si/mcp.

  2. Install and authenticate

    Confirm the install, then click Authenticate. Cursor completes Relvo's OAuth in the browser.

  3. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

The install link opens Cursor directly, so it does nothing in a browser that has never installed the editor.

Manual way

Edit ~/.cursor/mcp.json.

Use the global or the project file when you want the entry under your own control.

  1. Open the MCP config

    Edit ~/.cursor/mcp.json for every project, or .cursor/mcp.json inside the repository for one.

  2. Add Relvo

    JSON
    {
  "mcpServers": {
    "relvo": {
      "url": "https://app.relvo.si/mcp"
    }
  }
}

  3. Reload Cursor

    Save the file and reload the window. Relvo appears in the MCP panel, and Authenticate finishes the sign-in.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Automatic way

Ask the Bot to wire it up.

Grok Bot configures connections from the conversation, so the quickest route is a single instruction with Relvo's address.

  1. Copy the setup prompt

    PROMPT
    Add a custom MCP server called relvo at https://app.relvo.si/mcp with OAuth sign-in, then list the Relvo tools.

  2. Paste it into a Bot chat

    The Bot repeats the server name and URL and asks you to confirm. Check them and select Add it.

  3. Authorise

    Select Authorize on the card the Bot sends and approve Relvo in the browser once. The Bot can then call the catalog from any chat.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The client picks the matching operations and runs them on your connected account.

Manual way

Name the server yourself in the chat.

Grok Bot's settings have no field for a server URL; custom MCP servers are added from the conversation.

  1. Describe the server

    NameRelvo
    Server URLhttps://app.relvo.si/mcp

    Ask the Bot to add a custom server with this name and URL. Say custom server, or it may offer a catalog plugin instead.

  2. Confirm

    The Bot repeats the name and URL. Check that the URL is https://app.relvo.si/mcp, then select Add it.

  3. Authorise

    Select Authorize on the card the Bot sends, sign in and allow access. The Relvo tools appear once you are signed in.

  4. Ask for the right tool

    PROMPT
    Using Relvo, find the right BuiltWith tool to get account limits and credit costs and run it on my BuiltWith connection. Return BuiltWith's response as it comes back.

    The agent picks the matching operations, runs them on your connection, then relays the provider's response verbatim.

All 23 BuiltWith operations run on your connected BuiltWith account. Relvo charges no usage fee; BuiltWith may bill that account on its own plan.

Use BuiltWith with any agent

Pick the client you already use. Every one reaches the same catalog through one Relvo key.

All agents
ChatGPTUse BuiltWith with ChatGPTClaudeUse BuiltWith with ClaudeClaude CodeUse BuiltWith with Claude CodeHermes AgentUse BuiltWith with Hermes AgentCursorUse BuiltWith with CursorGrok BotUse BuiltWith with Grok BotCodexUse BuiltWith with CodexOpenClawUse BuiltWith with OpenClawAny MCP ClientUse BuiltWith with Any MCP Client

Explore other platforms

Other shelves in the same catalog. One key reaches all of them.

Browse all platforms
Google SearchBrowse Google Search in the Relvo app. Inspect each tool and compare providers before running a call.11 endpointsXBrowse X in the Relvo app. Inspect each tool and compare providers before running a call.332 endpointsInstagramBrowse Instagram in the Relvo app. Inspect each tool and compare providers before running a call.208 endpointsTikTokBrowse TikTok in the Relvo app. Inspect each tool and compare providers before running a call.231 endpoints

Frequently asked questions

Short answers about the key, the price and the call itself.

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