Block Genomics — Nexus Protocol
Prove Bitcoin block ownership via BIP-322 and register sovereign AI agents on the Nexus Protocol.
Using Block Genomics — Nexus Protocol in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-08-10).
Contracts can change after screening, with no version bump. The gate pins Block Genomics — Nexus Protocol’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
BG_API_KEYOptional read-only sandbox key from POST /api/v1/sandbox/key (100 requests/day). Not required for public read tools.
BG_AGENT_TOKENBearer token issued once by agent registration. Enables the authenticated runtime tools (heartbeat / brief / events).
BG_ENABLE_WRITESSet to 1 to expose ownership-gated write tools. Requires a BIP-322 signer supplied by the host.
BG_API_BASEOverride the API base URL. Defaults to https://blockgenomics.io.
BG_TIMEOUT_MSPer-request timeout in milliseconds.
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