Exposes EPA Computational Toxicology (CompTox) evidence federation through MCP, enabling chemical identity, hazard, exposure, and bioactivity data retrieval for AI agents.
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process.env. You'll be asked to provide them before it can run.CTX_API_KEY— set in .envEPA_COMPTOX_API_KEY— Important: The server needs a valid EPA CompTox API key. Set CTX_API_KEY (preferred) or in .env before starting the transport.CTX_HAZARD_HEALTH_URLCTX_EXPOSURE_HEALTH_URLCTX_BIOACTIVITY_HEALTH_URLENDPOINT_CHECK_TIMEOUTEPACOMP_SKIP_VENV_REEXECctx_api_hostCTX_API_BASE_URL— Optional https://comptox.epa.gov/ctx-api Base URL for CompTox API.ctx_x_api_key— CTX_API_KEY ✅ – CompTox API key used for all downstream requests. Fallbacks: EPA_COMPTOX_API_KEY, .MCP_EPACOMP_TOX_SERVER_URLMCP_EPACOMP_TOX_API_KEYCTX_CHEMICAL_HEALTH_URLEPA_MCP_HTTP_ENDPOINTEPA_MCP_BEARER_TOKENEPACOMP_TOX_VERSIONTOXMCP_ENVIRONMENTEPACOMP_AD_EVALUATOREPACOMP_AD_SIDECAR_TIMEOUT_SECONDSEPACOMP_AD_SIDECAR_FALLBACK_TO_DELEGATEDEPACOMP_AD_DESCRIPTOR_BACKEND_URLEPACOMP_AD_DESCRIPTOR_BACKEND_TIMEOUT_SECONDSEPACOMP_AD_DESCRIPTOR_BACKEND_BEARER_TOKENEPACOMP_AD_DESCRIPTOR_BACKEND_API_KEYEPACOMP_AD_RULE_BACKEND_URLEPACOMP_AD_RULE_BACKEND_TIMEOUT_SECONDSEPACOMP_AD_RULE_BACKEND_BEARER_TOKENEPACOMP_AD_RULE_BACKEND_API_KEY[](https://m8ven.ai/mcp/toxmcp-comptox-mcp-1f753y)