MockHero

Generate realistic relational test data — 156 field types, 22 locales, JSON/CSV/SQL, free previews.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Generate realistic relational test data — 156 field types, 22 locales, JSON/CSV/SQL, free previews.

    How to connect

    How to connect MockHero to Claude

    The server address to paste into Claude settings:

    https://mockhero.dev/mcp/agent

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect MockHero to ChatGPT

    The server address to paste into ChatGPT settings:

    https://mockhero.dev/mcp/agent

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect MockHero to Cursor

    The server address to paste into Cursor settings:

    https://mockhero.dev/mcp/agent

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (9)

    Raw names from tools/list. Only developers need these.

    estimate_agent_usageEstimate MockHero agent-plan cost before generating data. No login or API key is required; include an API key only when you want the estimate to use actual daily usage.
    create_agent_checkoutCreate a loginless Polar Checkout URL for MockHero's metered agent plan. Polar is the Merchant of Record for checkout, tax collection, and remittance. The card payment step needs a human: present the returned url to your operator together with the estimate_agent_usage cost, keep the claim_token private, then poll check_agent_checkout_status and call claim_agent_api_key once paid.
    check_agent_checkout_statusPoll a Polar checkout created by create_agent_checkout using the returned claim_token.
    claim_agent_api_keyClaim the MockHero API key after Polar marks the loginless agent checkout as paid. The key is returned once.
    generate_test_dataGenerate realistic JSON, CSV, or SQL test data from structured tables or a plain-English prompt. Explicit table schemas up to 100 records can run free as a proof-of-work preview; plain-English prompt generation, larger requests, and production usage require a MockHero API key.
    generate_from_templateGenerate realistic test data from a pre-built MockHero template: ecommerce, blog, saas, or social. Small template previews up to 100 records can run free; larger or production usage requires a MockHero API key.
    detect_schemaConvert SQL CREATE TABLE statements or one sample JSON object into a MockHero schema that can be passed to generate_test_data.
    list_field_typesList MockHero field types, descriptions, parameters, and examples before building a schema.
    list_templatesList MockHero's pre-built schema templates for ecommerce, blog, SaaS, and social apps.