Every remote server in the official MCP registry, sent one real
initialize handshake. 16,923 servers across
11,823 hosts.
Search what these servers can do · read the measurement
Last checked 2026-09-06. We send a handshake, we do not authenticate and we do not call a tool.
Gated is not broken. 4,068 of these servers answer with a 401 or 403. They are running and want a credential we do not have. A checker that treats them as dead is wrong about 24.0% of the registry before it starts, so we count them separately and always will.
16,923 matching.
| server | result | tools | host |
|---|---|---|---|
| mcp-ai
https://api.mcp.ai/p_protestos_sp |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_psie |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_querido_diario |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_agenda_tribut |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_cafir |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_comprovante |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_cte |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_irpf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_listar_das |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfe |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfse |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfse_emit_det |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfse_emitidas |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfse_rec_det |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nfse_recebidas |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_nirf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_perdcomp |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_pgfn_2via |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_pgfn_2via_list |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_pgfn_devedores |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_radar |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_sal_cadastro |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_sicalc_darf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_simei_dasn |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_simei_mei_eg |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_simples_das |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_simples_dasn |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_simples_mei_eg |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_federal_situacao |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_pf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_pj |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_receita_pj_qsa |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_certid_download |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_certid_pedido |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_certid_recibo |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_info_conta |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_matric_download |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_matric_lista |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_matric_pedido |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registradores_matric_recibo |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registro_civil_val_cert_eletr |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registro_pf_ar |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registro_pf_br |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_registro_pf_mx |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_removebg |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_renda_estimada |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_restituicao_irpf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sancoes_australia |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sancoes_canada |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sancoes_onu |
answers a handshake | 7 | api.mcp.ai |