# RevClamp Enterprise -- B2B Revenue & EU VAT Assurance Firewall

> Automated Unpaid Subscription & API Access Blocker, 2-Tier Visa CE 3.0 & First-Party Usage-Log Chargeback Evidence Autopilot (submit: false), and Fault-Tolerant Shopify Plus EU B2B VIES VAT & Net-30 Vault.

## Core Guarantees & Architecture
- **Zero False Lockouts (Entitlement & Agent Circuit Breaker):** Evaluates multi-subscription Stripe accounts (including 2025-03-31.basil item-level current_period_end, 24h incomplete grace, paid-through paused accounts, and 0-14 day custom dunning grace windows) before emitting HMAC-SHA256 signed `revclamp.entitlement.revoke` or `revclamp.entitlement.restore` webhooks (`x-revclamp-signature`).
- **2-Tier Stripe Chargeback Defense (`submit: false`):** Evaluates Visa Compelling Evidence 3.0 (CE 3.0) 120d-365d historical undisputed charges with 128-bit IPv6/IPv4-mapped & device overlap, and appends verified 90-day product usage logs into `evidence[access_activity_log]` within 18,000 UTF-16 code units without overwriting merchant notes.
- **Shopify Plus EU B2B VIES & Net-30 Vault:** Normalizes 27 EU member-state + Northern Ireland (`XI`) VAT prefixes (auto-converting Greece `GR -> EL`), places orders on safe fulfillment hold during EU VIES `MS_UNAVAILABLE` outages with bounded background retries, verifies integer EUR-cent Net-15/30/60 upfront deposits, and exports SHA-256 signed quarterly CSV audit bundles.
- **0% Commission Flat-Rate Pricing:** Free Audit ($0/mo, up to 5,000 events/mo), Starter ($19/mo, up to 100,000 events/mo), Growth ($59/mo, up to 1,000,000 events/mo), Scale ($199/mo, up to 5,000,000 events/mo). Supports Visa/Mastercard and instant on-chain USDC/USDT verification.

## Machine-Readable Endpoints & Model Context Protocol (MCP)
- **MCP Server (JSON-RPC 2.0 Streamable HTTP):** `POST https://app.revclamp.com/api/mcp`
- **MCP Discovery Manifest (.well-known):** `GET https://app.revclamp.com/.well-known/mcp.json`
- **MCP Server Developer Hub:** `GET https://app.revclamp.com/mcp`
- **Transparent 0% Take-Rate B2B Pricing & Plan Comparison:** `GET https://app.revclamp.com/pricing`
- **Machine-Readable Billing & Plan Catalog API (JSON):** `GET https://api.revclamp.com/api/billing/plans`
- **Live System Status & Zero-Trust Security Trust Center:** `GET https://app.revclamp.com/status`
- **Machine-Readable System Status & Security Invariants API (JSON):** `GET https://api.revclamp.com/api/status`
- **Free B2B Diagnostic Tools Hub:** `GET https://app.revclamp.com/tools`
- **Full LLM & Agent Technical Reference:** `GET https://app.revclamp.com/llms-full.txt`
- **Stripe & Next.js 12-Line Middleware Guide:** `GET https://app.revclamp.com/docs/stripe-setup`
- **2-Minute Onboarding Guide:** `GET https://app.revclamp.com/docs/onboarding`
- **B2B Security, GDPR Art. 17 Erasure & Data-Minimization Guide:** `GET https://app.revclamp.com/docs/security-compliance`
- **Enterprise Webhook DLQ, 72h Idempotency & Out-of-Order Recovery Runbook:** `GET https://app.revclamp.com/docs/webhook-dlq-runbook`
- **EU B2B VAT Reverse-Charge & VIES MS_UNAVAILABLE Audit Playbook:** `GET https://app.revclamp.com/docs/vies-vat-exemption-playbook`
- **Free Stripe 2025-03-31.basil Entitlement & Ghost-Usage Auditor:** `GET https://app.revclamp.com/tools/stripe-basil-auditor`
- **Free Visa CE 3.0 Readiness Checker:** `GET https://app.revclamp.com/tools/stripe-ce3-checker`
- **Free 20-ID EU VIES VAT Batch Validator:** `GET https://app.revclamp.com/tools/vies-vat-validator`
- **Free Shopify Plus B2B Net-15/30/60 Deposit & Credit-Note Calculator:** `GET https://app.revclamp.com/tools/b2b-net-terms-calculator`
- **Free Stripe, Shopify & RevClamp Webhook HMAC-SHA256 Signature Tester:** `GET https://app.revclamp.com/tools/webhook-signature-tester`
- **Free B2B 0% Take-Rate Chargeback ROI & Plan-Fit Calculator:** `GET https://app.revclamp.com/tools/b2b-chargeback-roi-calculator`
- **Free Webhook Replay & Out-of-Order State Machine Simulator:** `GET https://app.revclamp.com/tools/webhook-replay-simulator`
- **Free Stripe Dispute Evidence UTF-16 Character Counter & Non-Destructive CE 3.0 Linter:** `GET https://app.revclamp.com/tools/stripe-dispute-evidence-char-counter`
- **Engineering Blog (Stripe basil & EU VIES Deep-Dives):** `GET https://app.revclamp.com/blog`
- **Stripe 2025-03-31.basil & Visa CE 3.0 Routing Deep-Dive:** `GET https://app.revclamp.com/blog/stripe-basil-ce3-routing`
- **EU VIES HTTP 200 Soft-Failure Circuit Breaker Deep-Dive:** `GET https://app.revclamp.com/blog/eu-vies-http200-circuit-breaker`
- **Shopify Plus B2B Net-15/30/60 Integer-Cent Reconciliation Deep-Dive:** `GET https://app.revclamp.com/blog/shopify-b2b-net-terms-integer-cent-reconciliation`
- **Stripe, Shopify & RevClamp Webhook HMAC-SHA256 Raw-Body Pitfalls Deep-Dive:** `GET https://app.revclamp.com/blog/stripe-shopify-webhook-hmac-raw-body-pitfalls`
- **B2B Chargeback 25%-30% Contingency Fees vs. Flat-Rate 0% Take-Rate ROI Deep-Dive:** `GET https://app.revclamp.com/blog/chargeback-contingency-fees-vs-flat-rate-roi`
- **Webhook Idempotency & Out-of-Order Monotonic State Machines Deep-Dive:** `GET https://app.revclamp.com/blog/webhook-idempotency-out-of-order-state-machines`
- **Visa CE 3.0 18,000 UTF-16 Code Unit Dispute Evidence Truncation Pitfalls Deep-Dive:** `GET https://app.revclamp.com/blog/visa-ce3-18k-utf16-evidence-truncation-pitfalls`