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_senatran_infracoes
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_senatran_meus_veiculos_comp
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_senatran_meus_veiculos_info
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_senatran_meus_veiculos_posse
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_senatran_recall
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_senatran_validar_cnh
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_serpro_radar_veiculo
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_siconfi_declaracao
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_similaridade_ar
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_similaridade_br
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_similaridade_mx
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_simples_nacional
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ac
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_al
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_am
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ap
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ba
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ccc
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ccc_completa
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ce
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_df
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_es
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_go
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ma
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ms
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_mt
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_pa
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_pb
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_pe
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_pr
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_rj
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_rn
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_ro
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_rr
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_rs
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_sc
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_se
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_sp
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_suframa
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sintegra_to
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sit_caepi
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sit_trabalho_escravo
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_situacao_cadastral
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_situacao_eleitoral
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sivisa_sp
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sncr_ccir
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_sncr_imoveis
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_stm_certidao
answers a handshake 7 api.mcp.ai
mcp-ai
https://api.mcp.ai/p_stripe
answers a handshake 7 api.mcp.ai
previous page 98 next