Environment variables

An MCP server states in the source which environment variables it reads. This page counts the names and lists which entries name the same one.

Ordinary and secret required variables are two different raw declarations and therefore stand side by side. They are never added into one figure: a name can appear in both, and the sum would then be wrong.

Ordinary environment variables: 1,417 distinct names across 654 entries

Secret required variables: 373 distinct names across 403 entries

Names given by more than one entry

Variable name	As an ordinary variable	As a secret required variable
`APIFY_TOKEN`	30 (4.6 %)	30
`RUST_LOG`	21 (3.2 %)	0
`SKIP_HEALTH_CHECKS`	8 (1.2 %)	0
`ANTHROPIC_API_KEY`	7 (1.1 %)	1
`ENABLED_TOOLGROUPS`	7 (1.1 %)	0
`OPENAI_API_KEY`	6 (0.9 %)	0
`EVM_PRIVATE_KEY`	5 (0.8 %)	1
`NWC_URI`	4 (0.6 %)	0
`UNRAID_API_KEY`	4 (0.6 %)	4
`UNRAID_API_URL`	4 (0.6 %)	0
`AWS_REGION`	3 (0.5 %)	0
`AWS_SECRET_ACCESS_KEY`	3 (0.5 %)	1
`CORTEX_TOKEN`	3 (0.5 %)	0
`DATABASE_URL`	3 (0.5 %)	1
`GOTIFY_APP_TOKEN`	3 (0.5 %)	0
`GOTIFY_CLIENT_TOKEN`	3 (0.5 %)	0
`GOTIFY_URL`	3 (0.5 %)	0
`HEADLESS`	3 (0.5 %)	0
`LLM_API_KEY`	3 (0.5 %)	0
`PORT`	3 (0.5 %)	0
`SYNCLINE_API_KEY`	3 (0.5 %)	3
`TIMEOUT`	3 (0.5 %)	0
`WALLET_PRIVATE_KEY`	3 (0.5 %)	0
`X402_PRIVATE_KEY`	3 (0.5 %)	0
`AGENT_PRIVATE_KEY`	2 (0.3 %)	1
`API_KEY`	2 (0.3 %)	2
`APPRISE_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`APPRISE_RMCP_REPO`	2 (0.3 %)	0
`APPRISE_RMCP_VERSION`	2 (0.3 %)	0
`APPRISE_TOKEN`	2 (0.3 %)	0
`APPRISE_URL`	2 (0.3 %)	0
`ARCANE_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`ARCANE_RMCP_REPO`	2 (0.3 %)	0
`ARCANE_RMCP_VERSION`	2 (0.3 %)	0
`AWS_ACCESS_KEY_ID`	2 (0.3 %)	1
`BRIGHTDATA_API_KEY`	2 (0.3 %)	0
`BUDGET_SATS`	2 (0.3 %)	0
`CANDIDATEHUB_API_BASE`	2 (0.3 %)	0
`CANDIDATEHUB_TOKEN`	2 (0.3 %)	2
`CORTEX_API_TOKEN`	2 (0.3 %)	0
`CORTEX_HOME`	2 (0.3 %)	0
`CORTEX_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`CORTEX_RMCP_REPO`	2 (0.3 %)	0
`CORTEX_RMCP_VERSION`	2 (0.3 %)	0
`FIDACY_ENGINE_API_KEY`	2 (0.3 %)	0
`FIDACY_MODE`	2 (0.3 %)	0
`FIRECRAWL_API_KEY`	2 (0.3 %)	0
`FORGE_API_KEY`	2 (0.3 %)	1
`GCS_BUCKET`	2 (0.3 %)	0
`GCS_PROJECT_ID`	2 (0.3 %)	0
`GEMINI_API_KEY`	2 (0.3 %)	0
`GOTIFY_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`GOTIFY_RMCP_REPO`	2 (0.3 %)	0
`GOTIFY_RMCP_VERSION`	2 (0.3 %)	0
`HTTP_ALLOWED_HOSTS`	2 (0.3 %)	0
`HTTP_ALLOWED_ORIGINS`	2 (0.3 %)	0
`HTTP_HOST`	2 (0.3 %)	0
`HTTP_PORT`	2 (0.3 %)	0
`LLM_API_BASE_URL`	2 (0.3 %)	0
`LLM_MODEL`	2 (0.3 %)	0
`LLM_PROVIDER`	2 (0.3 %)	0
`LLMINTEL_API_KEY`	2 (0.3 %)	0
`LLMINTEL_BASE_URL`	2 (0.3 %)	0
`LNBITS_ADMIN_KEY`	2 (0.3 %)	0
`LNBITS_URL`	2 (0.3 %)	0
`LND_MACAROON`	2 (0.3 %)	0
`LND_REST_HOST`	2 (0.3 %)	0
`LOG_LEVEL`	2 (0.3 %)	0
`LOGI_API_URL`	2 (0.3 %)	0
`MAX_PAYMENT_USDC`	2 (0.3 %)	0
`MCP_RESOURCE_FILESYSTEM_ROOT`	2 (0.3 %)	0
`MCP_RESOURCE_STORAGE`	2 (0.3 %)	0
`OPTIMIZE_FOR`	2 (0.3 %)	0
`PHOENIXD_PASSWORD`	2 (0.3 %)	0
`PHOENIXD_URL`	2 (0.3 %)	0
`RARCANE_API_KEY`	2 (0.3 %)	2
`RARCANE_API_URL`	2 (0.3 %)	0
`RPC_URL`	2 (0.3 %)	0
`SGP_DIRECTORY_API_KEY`	2 (0.3 %)	0
`SKILL_TOKEN`	2 (0.3 %)	1
`SOLANA_RPC_URL`	2 (0.3 %)	0
`STRATEGY_CONFIG_PATH`	2 (0.3 %)	0
`SYNAPSE_CONFIG_FILE`	2 (0.3 %)	0
`SYNAPSE_HOME`	2 (0.3 %)	0
`SYNAPSE_HOSTS_CONFIG`	2 (0.3 %)	0
`SYNAPSE_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`SYNAPSE_RMCP_REPO`	2 (0.3 %)	0
`SYNAPSE_RMCP_VERSION`	2 (0.3 %)	0
`TAILSCALE_API_KEY`	2 (0.3 %)	2
`TAILSCALE_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`TAILSCALE_RMCP_REPO`	2 (0.3 %)	0
`TAILSCALE_RMCP_VERSION`	2 (0.3 %)	0
`UNIFI_API_KEY`	2 (0.3 %)	2
`UNIFI_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`UNIFI_RMCP_REPO`	2 (0.3 %)	0
`UNIFI_RMCP_VERSION`	2 (0.3 %)	0
`UNIFI_URL`	2 (0.3 %)	0
`UNRAID_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`UNRAID_RMCP_REPO`	2 (0.3 %)	0
`UNRAID_RMCP_VERSION`	2 (0.3 %)	0
`YARR_PLEX_TOKEN`	2 (0.3 %)	0
`YARR_PLEX_URL`	2 (0.3 %)	0
`YARR_RADARR_API_KEY`	2 (0.3 %)	0
`YARR_RADARR_URL`	2 (0.3 %)	0
`YARR_RELEASE_BASE_URL`	2 (0.3 %)	0
`YARR_REPO`	2 (0.3 %)	0
`YARR_SONARR_API_KEY`	2 (0.3 %)	0
`YARR_SONARR_URL`	2 (0.3 %)	0
`YARR_VERSION`	2 (0.3 %)	0
`YTDL_RMCP_BINARY_VERSION`	2 (0.3 %)	0
`YTDL_RMCP_RELEASE_BASE_URL`	2 (0.3 %)	0
`YTDLP_ACOUSTID_CLIENT_KEY`	2 (0.3 %)	0
`YTDLP_PLEX_TOKEN`	2 (0.3 %)	0
`YTDLP_PLEX_URL`	2 (0.3 %)	0

Listed are the 114 names named by at least 2 entries. The remaining 1,303 names appear in exactly one entry; their page does exist, but it would be the thinner version of that one entry page. It is therefore kept out of the index and not linked from here.

Which format the source states

`string`	330
`boolean`	10
`number`	10
`filepath`	8

The format comes from the source field format. It is a vendor's statement about its own variable and is neither checked nor added to here.

Version of the extraction rule: 1.1. The names are formed by splitting the stored raw declaration at the separator this registry set when reading it in. Counted across the 21,996 published entries.

tracevero · https://tracevero.com/en/werkzeuge/variablen