mcpbeat

MockHero MCP Server

io.github.dinosaur24/mockhero
not responding

MockHero is listed as active in the registry but did not answer our last check. 38 installs a week from npm. It exposes 9 tools. Last commit 9 Jul 2026.

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

Installs per day peak 52 · avg 10 · -38% w/w
a month agotoday
Uptime history 39 hours of history · worst hour 0%
39 hours agonow
9.8%
Uptime 24h
9 of 92 checks
9
Tools
read from the server
770 ms
Response time
average over 24h
38
Installs / week
npm and PyPI

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add mockhero --transport http https://mockhero.dev/mcp/agent
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mockhero": {
      "url": "https://mockhero.dev/mcp/agent"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mockhero]
url = "https://mockhero.dev/mcp/agent"
.cursor/mcp.json
{
  "mcpServers": {
    "mockhero": {
      "url": "https://mockhero.dev/mcp/agent"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mockhero": {
      "url": "https://mockhero.dev/mcp/agent"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

agent
check_agent_checkout_status
Poll a Polar checkout created by create_agent_checkout using the returned claim_token.
create_agent_checkout
Create 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.
generate
generate_from_template
Generate 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.
generate_test_data
Generate 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.
claim
claim_agent_api_key
Claim the MockHero API key after Polar marks the loginless agent checkout as paid. The key is returned once.
detect
detect_schema
Convert SQL CREATE TABLE statements or one sample JSON object into a MockHero schema that can be passed to generate_test_data.
estimate
estimate_agent_usage
Estimate 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.
field
list_field_types
List MockHero field types, descriptions, parameters, and examples before building a schema.
templates
list_templates
List MockHero's pre-built schema templates for ecommerce, blog, SaaS, and social apps.

Endpoints

URLTransportStateLatencyChecked
https://mockhero.dev/mcp/agent streamable-http answering 91 ms 1 min ago

MockHero — questions

Answers built from our own checks of this server.

What can MockHero do?
It exposes 9 tools, read directly from the server on our last check. Among them: check_agent_checkout_status, claim_agent_api_key, create_agent_checkout, detect_schema, estimate_agent_usage, generate_from_template and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is MockHero mostly used for?
Its tools cluster around agent and generate. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is MockHero working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 9 of 92 checks got a reply (9.8%), average response time 770 ms. The bar chart above shows every period we have measured.
The registry lists MockHero as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect MockHero?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does MockHero need an API key?
No. MockHero completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is MockHero?
It answers our handshake in 770 ms on average, which is faster than 10% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use MockHero?
The npm package @mockherodev/mcp-server was installed 38 times in the last week. Week over week that is -38%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is MockHero open source?
Yes — it is published under the MIT licence, written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.