Invisible bot shield for HTML forms: the browser solves a proof of work and your server checks it.
Connect Remote server
claude mcp add --transport http bot403 https://bot403.com/mcp
{
"mcpServers": {
"bot403": {
"url": "https://bot403.com/mcp"
}
}
}
{
"servers": {
"bot403": {
"type": "http",
"url": "https://bot403.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://bot403.com/mcp
Tools
This server asks for a key before it lists its tools. Connect it with your own key to see them.
Details
| Endpoint | https://bot403.com/mcp (Streamable HTTP) |
| First published | 23 Oct 2026 |
| Last updated | 23 Oct 2026 |
| Registry name | com.bot403/bot403 |
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