Legal

Nustro Operator Rulebook

Scheme rules, fee schedule, and governance commitments for the Nustro scheme on AEA/P rails. Incorporated into the Platform Operator Agreement; rates change only on published notice.

Version1.0
IssuerNustro, LLC, as Operator of the Nustro scheme
Effective dateAugust 11, 2026
DenominationUS dollars; assessed in scheme settlement currency units, at par for USD-pegged settlement tokens.
Governing referencesAEA/P Protocol Specification v0.2.8 · AEAP Operator Reference v1.3 · AEAP Platform Reference v1.3
ClassificationPublic · published at nustro.com/legal/rulebook

1.Scope

This Rulebook states the commercial terms of the Nustro scheme: participation, fees, collection, Platform revenue rights, and enforcement. It binds accredited Platforms through the Platform Operator Agreement each accepts at production accreditation. It governs commercial terms only — identity, verification, escrow, settlement, performance rating, and dispute procedure are governed by the AEA/P Protocol Specification, which is fee-agnostic: all scheme fees exist solely in this Rulebook. Where the two conflict, the Protocol Specification prevails and this Rulebook is amended.

The base version carries the rules needed to operate the scheme in its current configuration: single settlement currency, CONSUMER-demand transactions, and Platforms serving either or both sides of transactions. Everything beyond that is an Extension (Section 9), activated by effective-dated revision without restructuring these rules.

2.Roles

Protocol terms (Principal, Agent, Operator, Platform, economic roles) retain their protocol meanings. The scheme adds:

TermMeaning
Demand-side PlatformPer transaction, the Platform of the demand-side agent. It distributes the wallet surface, delivers Commitment Authorization step-ups, supports the demand-side Principal, and receives the Demand Share.
Supply-side PlatformPer transaction, the Platform of the supply-side agent. It onboards the supply-side Principal, maintains markets and wallet configuration, indexes the agent for discovery, and receives the Supply Share.
Scheme FeeThe Nustro Assessment plus the Demand Share plus the Supply Share on a settled transaction. The Scheme Fee is borne by the settled transaction (Section 5).
Nustro AssessmentThe Scheme Fee component retained by Nustro. Funds escrow custody controls, dispute administration, transaction monitoring, and the registry and switch.
Demand ShareThe Scheme Fee component credited to the demand-side Platform for wallet distribution, Commitment Authorization delivery, Principal support, and dispute intake.
Supply ShareThe Scheme Fee component credited to the supply-side Platform for Principal onboarding, markets and wallet configuration, catalog indexing and discovery, and respondent-side dispute support.
Net Settlement StatementThe monthly per-Platform statement that computes all fees and credits, reconciles on-rail collections, and nets to a single payable or receivable.
CustomerA commercial client of a Platform under which the Platform groups Principals for its own administration, support, and reporting. A Customer has no protocol standing: it is never verified by the Operator (a Platform can, and should, verify its own Customers), appears in no identity document, certificate, or settlement, and gates no transaction, escrow, dispute, or rating behavior. Accountability rests with each Principal.
Table 2.1 — Scheme terms

The scheme has one participant class: the accredited Platform. Demand-side and supply-side designations are positions in a transaction, never classes of company — a Platform’s revenue mix follows its agent mix, and a Platform on both sides of a transaction receives both shares, so the net scheme cost of that transaction is the Nustro Assessment. On a cross-platform transaction, each Platform receives its own side’s share. “Principal” applies uniformly across demand and supply sides.

3.Participation

A Platform account progresses through the readiness ladder EMAIL_PENDING → PROFILE_PENDING → KYB_PENDING → IN_REVIEW → ACCREDITED. Sandbox access begins at PROFILE_PENDING and carries no charge. Accreditation gates production: live certificates, escrow, disputes, and the production credential are available to ACCREDITED Platforms in good standing — statements current, credentials valid, accreditation maintained. Production access is licensed through the Scheme Access fee: monthly, tiered by production agent count (Section 4), and billed through the Net Settlement Statement. The founding cohort program waives it in full against committed transaction volume, on terms set in the Platform Operator Agreement.

Accreditation carries two service scopes, both granted by default: demand-side servicing (wallet credential lifecycle, Commitment Authorization delivery to a Principal surface, dispute intake) and supply-side servicing (Principal onboarding with KYB via a Verifier, markets and wallet configuration, catalog indexing and discovery, respondent-side dispute support). A Platform may omit either scope at accreditation and add it later; scopes attest which servicing obligations a Platform operates, and a Platform earns the share for a side only where it holds that side’s scope.

A Customer is expected to hold its own accreditation once its activity reaches platform scale. Where the Principals grouped under one Customer — or under common control across Customer records — exceed $1,000,000 in settled transaction value over any trailing twelve months, or 10,000 agents concurrently holding production certificates (counted as in Table 4.2; the full first Scheme Access tier), graduation is mandatory: Nustro notifies the Platform, and within 180 days of notice the Customer accredits as a Platform in its own right, its Principals migrating under protocol identity portability. Below the thresholds, a Customer may accredit voluntarily at any time. Where mandatory graduation is not completed in the window, issuance of new production certificates to Principals under that Customer is suspended until it is — existing certificates, agents, and funds are untouched, consistent with Section 8. Graduation transfers accreditation obligations, not the commercial relationship: a graduated Platform may contract any part of its servicing to another accredited Platform, including the Platform it graduated from, on terms the two set; the accountable party under this Rulebook is the accreditation holder. Without a graduation line, a platform-scale Customer would carry a Platform’s economics with none of its accreditation obligations.

4.Fee Schedule

The Scheme sets exactly three prices — the Nustro Assessment, the Demand Share, and the Supply Share — all cost-derived and all borne by the settled transaction through the settlement split and the Net Settlement Statement. Onboarding, configuration, and discovery cost about the same on either side, and the two shares pay for that servicing symmetrically: a Platform earns by hosting and serving agents, on whichever side and on both. No side’s Principals bear a separate scheme charge; what a Platform charges its own Principals beyond the shares is its own pricing.

FeeRateBasis and direction
Nustro Assessment — percentage fee0.40%Of settled transaction value. Retained by Nustro.
Nustro Assessment — switch fee$0.05Per settled transaction. Retained by Nustro.
Demand Share — fixed$0.15Per settled transaction. Credited to the demand-side Platform.
Demand Share — Commitment Authorization delivery$0.10Per Commitment Authorization delivered to a Principal surface. Credited to the demand-side Platform.
Demand Share — recourse0.10%Of settled value where the supply-side agent’s dispute window is non-zero; 0% for final-sale (dispute_window_days = 0, performance-gated under Protocol §7.3.1). Credited to the demand-side Platform.
Supply Share — fixed$0.15Per settled transaction. Credited to the supply-side Platform.
Small-ticket regime0.60% flatSettled value below $5.00: fixed components waived; flat rate divided 0.40% Nustro / 0.10% demand-side Platform / 0.10% supply-side Platform.
Scheme Access feefrom $1,000 / monthPer ACCREDITED Platform; tiered by production agent count (Table 4.2) and billed monthly on the Net Settlement Statement. Founding cohort: waived in full against committed volume. Sandbox: no charge.
Late charge1.5% / monthOn past-due statement balances, or the maximum permitted by law if lower.
Table 4.1 — Base schedule. Applies to CONSUMER-demand transactions, the base configuration; ENTERPRISE-demand rates are Extension X2. No fee keys to agent_rating: rating risk is priced once, through protocol escrow mechanics. Commitment Authorization delivery is event-priced and therefore demand-only; the recourse component sits with the side that delivers recourse.
Scheme Access tierMonthly feePer-agent cost at tier ceiling
Up to 10,000 production agents$1,000$0.10
10,001 – 100,000$3,000$0.03
100,001 – 1,000,000$10,000$0.01
Each additional 1,000,000 or part+$5,000≤ $0.005
Table 4.2 — Scheme Access fee tiers. The billable count is the high-water mark of agents concurrently holding ACTIVE or SUSPENDED production certificates during the statement month; DRAFT agents and sandbox agents never count, so experimentation is never charged. Tiers are flat, not marginal: the fee is the rate of the tier the count falls in. Declining per-agent cost reflects sub-linear registry, certificate, and status-resolution costs.
TransactionNustro AssessmentDemand ShareSupply ShareScheme Fee
$100.00 · 30-day window · CA delivered$0.45$0.35$0.15$0.95 · 0.95%
$1,000.00 · 30-day window · CA delivered$4.05$1.25$0.15$5.45 · 0.55%
$500.00 · final-sale · CA delivered$2.05$0.25$0.15$2.45 · 0.49%
$3.00 · small-ticket regime$0.012$0.003$0.003$0.018 · 0.60%
Table 4.3 — Worked examples, CONSUMER demand. The Scheme Fee is borne by the settled transaction; the shares are credited to the demand- and supply-side Platforms. Effective rates decline with ticket size; against typical card-not-present costs of 2.5–3%, scheme rails price at roughly a fifth to a third of card cost.

Illustrative Platform economics, on 100,000 settled transactions per month at a $40 average ticket with Commitment Authorization delivered on 30% and non-zero windows prevailing: demand-side servicing earns approximately $0.22 per transaction ($22,000 per month), supply-side servicing $0.15 per transaction ($15,000 per month), and a Platform serving both sides of that volume earns approximately $0.37 per transaction — roughly $444,000 per year in share credits — before its own on-ramp fees and value-added services. Hosting the other side of the transactions it already serves is the largest revenue action available to a Platform.

5.Collection

The Scheme Fee is borne by the settled transaction. The Settlement Contract splits each payment atomically into operational, escrow, and fee legs; the fee leg deducts from gross proceeds at settlement, peer-to-contract, at the collection rate configured for the provider at registration under the Schedule in force. Funds never transit an Operator-held wallet, and escrow balances are never a source of fee collection. Fee-leg amounts are collections on account.

The monthly Net Settlement Statement is the calculation of record: it computes the exact Scheme Fee per transaction under the Schedule, credits the Demand Share and the Supply Share to the respective Platforms, reconciles fee-leg collections against computed fees, and settles any residual between collection and calculation with the supply-side Platform of the transaction, as the servicing party of the proceeds-bearing agent. Each Platform’s statement nets to a single payable or receivable, due within fifteen days in the scheme settlement currency. Per-transaction amounts accumulate without rounding; the netted balance rounds to the smallest settleable unit.

6.Platform Revenue

A Platform earns the Demand Share on every settled transaction in which it serves the demand side, and the Supply Share on every settled transaction in which it serves the supply side. It may additionally charge Principals for on-ramp services — converting fiat value into the scheme settlement currency and delivering it to the Principal’s self-custodied operational wallet. Because the Principal holds the operational keys, the Platform holds no stored value in this flow; the charge is a service fee, disclosed at wallet setup. On-ramp fees and value-added services are the Platform’s own pricing; the Scheme neither sets nor caps them. All Platform charges to a Principal are disclosed before first assessment.

Discovery conduct: a Platform’s discovery ranking may consider agent attributes and disclosed sponsorship, not hosting Platform. Fuller discovery-neutrality rules are Extension X8.

7.Disputes

Dispute economics are governed entirely by the Protocol Specification and the Scheme levies no dispute fees. Arbitrator compensation is the protocol bounty — clamp(disputed_amount × bounty_rate, bounty_min, bounty_max), with all three parameters configured per agent — funded from the respondent’s escrow, competing for arbitrators in the dispute pool, and topped up automatically where a dispute remains unassigned (Protocol §8.5). The applicant never pays. Pre-arbitration resolution within the respondent’s resolution window incurs no bounty. Frivolous filing is deterred at protocol level: filing requires verifiable transaction history with the respondent, submissions are rate-limited, and adverse outcomes affect the applicant’s rating.

Nustro’s dispute administration — triage, pool operation, board formation, enforcement of outcomes — is funded within the percentage fee. Any future dispute administration fee is Extension X5 and is bound by Commitment G3.

8.Enforcement

Statement delinquency escalates on a fixed ladder: at fifteen days past due, a delinquency notice and the late charge; at thirty, suspension of new production certificate issuance; at forty-five, suspension of the Platform’s production certificates, with affected agents failing counterparty verification as agent_suspended until cure; at sixty, termination of participation and certificate revocation, with reinstatement requiring re-accreditation. All enforcement acts on credential status — never on wallets, operational funds, or escrow balances.

9.Extensions

Extensions are scheme capabilities consciously outside the base version. Each activates by effective-dated revision of this Rulebook — rate increases on ninety days’ notice per Commitment G2 — without restructuring the base rules.

IDExtensionActivation condition
X1FX assessmentMulti-currency settlement support. Levied on the converted amount of cross-currency settlements; conversion executes at the platform layer or via a designated liquidity provider — never by Nustro — with reference rate and total spread disclosed to the paying Principal.
X2ENTERPRISE-demand ratesEnterprise agent tier availability. Reduced Demand Share reflecting self-service enterprise Principals.
X3Extended recourse bandVolume in long dispute windows. A higher recourse rate for windows beyond the standard band.
X4Credential-tier ratesTier economics. The Settlement Contract supports a per-provider fee rate sourced from credential tier; the base schedule sets a single standard rate.
X5Dispute administration feeDispute volume exceeding percentage-fee funding. Bound by Commitment G3: priced to cost recovery, charged consistently with the protocol’s respondent-funded model — never to an applicant.
X6Escrow stakingRegulatory and counsel clearance of custody characterization and of slashing and liquidity risk against escrow’s duty to be present for dispute outcomes. Opt-in and yield-shared if adopted.
X7Open-loop rate true-upFirst cross-platform cohort. Full schedule revalidation against measured servicing costs on both sides: Commitment Authorization delivery, support, dispute intake, onboarding, and discovery.
X8Discovery-neutrality rulesCross-platform discovery volume. Fuller conduct rules for ranking, sponsorship disclosure, and audit, extending the base conduct line in Section 6.
X9Activation rebate programsLaunch or growth incentives. Temporary, program-based rebates of Nustro Assessment components on newly activated agents’ volume — for example, until Rated status — under Commitment G7 criteria.
Table 9.1 — Extensions register

10.Governance Commitments

Standing constraints on Nustro’s own conduct as scheme operator, removable only by Rulebook revision that identifies the change explicitly:

IDCommitment
G1Three prices only: the Nustro Assessment, the Demand Share, and the Supply Share. All Platform pricing to Principals is market-set.
G2The Schedule is published with cost-based rationale; rate increases take effect no earlier than ninety days after notice. Decreases and waivers may take effect immediately.
G3Dispute administration is never a profit center; any dispute fee is priced to cost recovery.
G4No fee, discount, or surcharge keys to agent_rating.
G5The AEA/P Protocol Specification remains free of scheme economics.
G6Fee collection occurs only through the Settlement Contract’s atomic fee leg or the Net Settlement Statement — never from escrow, never through Operator-held funds in flight. Enforcement acts on credentials, not funds.
G7The Schedule applies uniformly to all accredited Platforms; waivers are program-based with published criteria, not bilateral concessions.
Table 10.1 — Governance commitments

11.Revision History

VersionDateChanges
v1.0August 11, 2026Initial public edition. Consolidates and supersedes internal drafts v0.1–v0.3.2; published at nustro.com/legal/rulebook and incorporated into the Platform Operator Agreement.
Table 11.1 — Revision history
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