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_sefaz_pr_ipva |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_pr_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_certidao_debitos_cert |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_dec_caixa_postal |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_ipva_darj |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_nfce_completa |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rj_nfce_resumida |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rn_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rn_nfce_resumida |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_ro_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_ro_dec_caixa_postal |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_ro_ipva |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_ro_nfce_completa |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_ro_nfce_resumida |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rr_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rr_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rs_cadin_cfil |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rs_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rs_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rs_nfce_resumida |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_rs_nfce_svrs |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sc_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sc_dec_caixa_postal |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sc_divida_ativa |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sc_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sc_nfe |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_se_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_se_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_cadin |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_cfe |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_cfe_completa |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_debitos_veiculo |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_dec_caixa_postal |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_sp_nfe |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_spu_certidao_imoveis |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_spu_dados_imoveis |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_to_certidao_debitos |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_to_ipva |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sefaz_to_nfce |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_segfy |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_seguro_defeso |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sema_mt_apf |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_sema_pa_ldi |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_senatran_advertencia_escrito |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_senatran_boleto_infracao |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_senatran_download_infracao |
answers a handshake | 7 | api.mcp.ai |
| mcp-ai
https://api.mcp.ai/p_senatran_exame_toxicologico |
answers a handshake | 7 | api.mcp.ai |