MCP servers, called rather than listed

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.

serverresulttoolshost
mcp-ai
https://api.mcp.ai/p_portal_transparencia_bolsa
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_bpc
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_busca
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_ceaf
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_ceis
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_cepim
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_cnep
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_convenios
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_leniencia
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_peti
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_repasse
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_safra
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_seguro
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_portal_transparencia_servidor
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ap_macapa_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ap_santana_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_camacari_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_ilheus_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_juazeiro_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_salvador_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_salvador_nada_consta
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ba_salvador_nfs
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ce_caucaia_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ce_fortaleza_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ce_fortaleza_cpom
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ce_jaguaretama_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_cpom
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_anapolis_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_aparecida_goiania_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_campos_verdes_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_catalao_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_firminopolis_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_goiania_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_itumbiara_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_jatai_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_morrinhos_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_perolandia_licitacoes
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_rio_verde_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_go_uruacu_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ma_balsas_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_ma_sao_luis_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_araujos_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_belo_horizonte_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_belo_horizonte_cndiptu
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_belo_horizonte_iptu
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_betim_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_contagem_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_contagem_nfs
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_divinopolis_cnd
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_pref_mg_itaguara_cne
answers a handshake 7 api.mcp.ai
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