# FaultKey · CausalLayer MCP server

Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-smq9sn5jck-cloud-causallayer-mcp
- Repository: https://github.com/smq9sn5jck-coder/causallayer-mcp
- Website: https://faultkey.com

## Install
- Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- Auth: Not captured

## Setup notes
- Remote endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp

## Tools
- submit_incident - Submit an AI incident for deterministic causal liability attribution. Returns a signed CausalCertificate, per-agent liability allocation, evidence-chain completeness, regulatory mapping, and (where keys are configured) a Bitcoin-anchored proof. Cost: 50 credits. Three guardrails apply: PII scan, deterministic-only acknowledgement, and minimum evidence. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- verify_certificate - Independently verify a CausalCertificate end-to-end (signature, Merkle integrity, issuer status against the registry). Cost: 1 credit. In production env, certificates from non-active issuers are rejected. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- verify_certificate_recompute - Independently re-derive a CausalCertificate from its canonical input and compare byte-for-byte against the claimed certificate. This is the strongest verification path: it requires no trust in the issuer or signing key. Cost: 1 credit (same price as verify_certificate). Returns PASS only if every checked field (certificateId, request_hash, merkleRoot, verdict, causalGraph, fourFactorScoring, deviationTaxonomy, euRuleOverlay, cascadeAttenuation, damages, underwriting) matches identically. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- submit_otel_trace - Convert an OpenTelemetry OTLP JSON trace into a FaultKey incident and return the same deterministic CausalCertificate as submit_incident. Each span becomes an event; service.name groups spans into agents; W3C trace_id and span_id propagate as evidence pointers on the causal graph edges. Cost: 50 credits (same as submit_incident). Three guardrails apply: PII scan, deterministic-only acknowledgement, and minimum evidence (auto-satisfied when the trace has at least 1 span). Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- simulate_remediation - Counterfactual remediation simulator. Given a certificate's verdict + fourFactorScoring + agents and a list of remediation IDs from the FK-METHOD-2026-003 catalog, return the apportioned shares each remediation would have produced (in isolation) and the composite shares if they all stack. Every remediation cites a specific statute or standard. GET /api/v2/remediation/catalog for the list of IDs. Cost: 1 credit (same price as verify_certificate). Pure deterministic; same inputs produce a byte-identical result. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- query_jurisdiction_overlay - Multi-jurisdiction overlay (FK-METHOD-2026-004). Given a canonical attributable apportionment (party-id -> share), the union of all jurisdiction role tags on each actor, and the union of jurisdiction-specific flags, return side-by-side post-overlay shares for AU, EU, US, UK, CA (or a chosen subset) with the specific rules that fired in each, citation URLs, and a parties × jurisdictions matrix. v1 ships full implementations for AU and EU; US/UK/CA are research stubs marked `is_stub: true`. Use GET /api/v2/jurisdiction/catalog to discover support and stub status. Cost: 1 credit. Pure deterministic. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- evaluate_prospective_response - Deterministic prospective-evaluation gate (FK-METHOD-2026-006). Pass a ProposedAction BEFORE the agent delivers a response; receive one of three verdicts: 'allow', 'require_revision' (with specific factor-keyed directives), or 'block'. Uses the same four-factor engine that issues post-hoc certificates, so a single incident chains: prospective_pre_image -> response -> certificate -> anchor. This is a policy gate on structured action metadata, NOT a content safety classifier on raw prose. Thresholds are per-jurisdiction (EU strictest, US most permissive); read via GET /api/v2/gate/thresholds. Overrides are allowed but REQUIRE a governance rationale so the audit trail is complete. Cost: 1 credit. Pure deterministic. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- get_anchor_status - Return the index of all CausalLayer Tessera anchor batches, or one batch's full JSON (signed Merkle root, leaves, OpenTimestamps proof reference). FREE. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- query_issuer_registry - Return the CausalLayer issuer registry, or one issuer record. The registry lists all trusted public-key fingerprints, key algorithms, validity windows, and the anchor-log repo for each active issuer. FREE — no API key required. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp
- extract_incident - Claude-powered structured extractor. Parses unstructured text (news articles, court filings, emails, PDFs, incident reports, logs) into the typed JSON schema required by submit_incident. Returns a ready-to-submit incident object with extracted agents, events, severity, jurisdiction, and financial impact. NOTE: This is a pre-processing convenience tool — the deterministic scoring engine itself remains LLM-free. Cost: 10 credits. Endpoint: https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp

## Resources
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## Prompts
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## Metadata
- Owner: io.github.smq9sn5jck-cloud
- Version: 0.2.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: May 16, 2026
- Source: https://registry.modelcontextprotocol.io