Marketplace Rulebook v1.1 — Listing standards, verification, enforcement, and fees.
The TenzaOne Marketplace operates as a regulated platform for voluntary carbon credit instruments. Three enforcement areas govern all activity: listing standards, verification labels, and suspension/removal. Projects progress through a defined certification track from initial intake to credit issuance, with DAO oversight at key decision points.
Four operational phases define the marketplace roadmap:
Risk scoring (1–5 scale) is assessed across legal/rights, safeguards, MRV complexity, fraud/AML, and delivery risk for every listing.
Eight non-negotiable principles govern all marketplace activity:
Seven listing categories are supported on the marketplace:
All project developers must complete:
Fraud, illegal activity, human rights harm, unresolved land tenure disputes, and double counting are grounds for immediate removal.
AFOLU (Agriculture, Forestry and Other Land Use), high-risk jurisdictions, and contested baselines require enhanced due diligence and LIC (Listing & Integrity Committee) review.
Three categories of labels track every aspect of a project’s status:
KYB verified, UBO disclosed, sanctions cleared, developer track record assessed, governance structure confirmed.
| A | Draft → Pre-Qualified → AI Pre-Assessment |
| B | Methodology Identified → VVB Engaged |
| C | Validation Progress → Monitoring Progress |
| D | Verification Progress → Registered |
| E | Issued |
| F | Retired |
Forward contract, revenue share, fixed income, equity stake, verified credit unit, retired credit.
The Carbon Value & Impact Tracker (CVIT) aggregates 11 KPIs into a single project quality metric (G/A/R rated):
| Additionality | Environmental |
| Permanence Risk | Environmental |
| MRV Confidence | Verification |
| Co-benefit Breadth | Social |
| Community Engagement | Social |
| Financial Viability | Financial |
| Developer Track Record | Governance |
| Regulatory Alignment | Governance |
| Technology Readiness | Technical |
| Scalability Potential | Technical |
| Market Demand | Market |
Six graduated enforcement actions, applied based on severity:
| Action | Timeframe | Severity |
|---|---|---|
| Correction Notice | 14–30 days to remedy | Level 1 Hygiene |
| Visibility Limitation | Until resolved | Level 2 Integrity risk |
| Transaction Hold | Until investigation complete | Level 2 |
| Suspension | Pending full review | Level 3 Serious breach |
| Delisting | Permanent | Level 3–4 |
| Account Termination | Permanent | Level 4 Zero-tolerance |
Fraud, double counting, sanctions violations, illegal activity, human rights violations, evidence tampering.
| Model | Project Side | Investor Side | Minimum |
|---|---|---|---|
| Fixed / Royalty Financing | 2.0% | 0.5% | €5K |
| Carbon Pre-Purchase | 1.0% | 0.5% | €2.5K |
| SAFE / Convertible | 2.5% | 0% | €10K |
Funding Facilitation: 10% success fee on finance fees (disclosed in term sheet, cannot influence listing decisions).
| Fee Type | Phase 1 (Current) | Phase 3 (2028) |
|---|---|---|
| Certificate Transfer | 2.5% | — |
| Spot Trade (Maker) | — | 0.30% (0.10–0.20% high volume) |
| Spot Trade (Taker) | — | 0.60% (0.30–0.50% high volume) |
| Token Transfer / Bridging | — | 0.10–0.50% |
| Custody / Escrow | — | 0.10–0.30% / year |
| Listing Fee | Free (MVP) | TBD |
| Plan | Monthly | Annual |
|---|---|---|
| Developer Free | $0 | $0 |
| Developer Pro | $99 | $999 |
| Developer Studio | $299 | $2,999 |
| Plan | Monthly | Annual |
|---|---|---|
| Investor Explorer | $0 | $0 |
| Investor Pro | $249 | $2,490 |
| Investor Institutional | $1,500+ | $15,000+ |
| Tier | Volume (tCO₂e) | Fee |
|---|---|---|
| Micro | 1,000–2,500 | €90 |
| Small | 2,500–10,000 | €500 |
| Growth | 10,000–50,000 | €2,500 |
| Scale | 50,000–250,000 | €10,000 |
| Enterprise | 250,000+ | €45,000 |
| Service | Range |
|---|---|
| AI Readiness Assessment | $500–$5,000 |
| Investor Diligence Pack | $1,500–$7,500 |
| Certification Support | $1,000–$10,000 |
| MRV / Data Pipeline Setup | $2,500–$25,000 |
| Tier | Monthly |
|---|---|
| MRV Basic | $100 |
| MRV Standard | $350 |
| MRV Verified | $1,000 |