[ ● Live product ]

Haia Control Plane for Agentic USDC Execution on Arc

Observe, govern, reconcile, and measure agentic USDC flows across Circle Nanopayments, x402, Wallets, Gateway, and Arc.

Haia turns high-frequency USDC activity into operational intelligence: margin, attribution, policy signals, settlement status, and reliability.

Watch DemoView Grant Deck

Built for the Circle Developer Grants Program · Circle-native integration milestones proposed

ArcUSDCCircle WalletsGatewayNanopaymentsx402
Haia Control Plane — Circle, Arc, USDC, Haia
[ Problem ]

Agentic payments are becoming viable. Operating them is still hard.

Circle Nanopayments and Arc make high-frequency, low-value USDC transactions possible. Developers can now price API calls, agent actions, compute, data, and services per event.

But once payments work, teams still need to answer harder operational questions:

  • Which agents, endpoints, or users are profitable?
  • Where do x402 payment flows fail?
  • Did every off-chain action reconcile with on-chain settlement?
  • Which agent exceeded its budget or attempted abnormal spend?
  • Can this execution history be trusted over time?

Without this layer, agentic commerce stays difficult to operate as a real business.

[ Product ]

Haia is the Control Plane after payments work.

Haia ingests Circle / Arc execution events and turns them into the operational layer teams need to scale agentic USDC flows.

Per-call P&L

Track revenue, cost, and margin for every agent action, API call, endpoint, or customer segment.

Agent Attribution

Understand which agents generate revenue, consume budget, fail payments, or create operational risk.

Policy Guardrails

Apply limits, approvals, allowlists, and anomaly checks before abnormal USDC activity becomes a loss.

Settlement Reconciliation

Match off-chain actions with Circle events and Arc transaction records to prove what was paid, settled, failed, or mismatched.

Execution Reliability

Measure completion, settlement consistency, failed challenge rates, policy violations, and operational quality over time.

See Product Walkthrough
[ Demo ]

Demo: Agentic API monetized with USDC on Arc

In the demo, an AI-powered API accepts USDC payments through a Circle-native flow. Haia Control Plane observes each event from request to settlement.

[ Demo video placeholder ]

The flow
  1. 1Agent invokes a paid API endpoint
  2. 2x402 payment challenge is issued
  3. 3USDC payment is submitted
  4. 4Haia policy check evaluates the action
  5. 5Settlement is reconciled on Arc
  6. 6The service is fulfilled
  7. 7Margin and reliability signals are updated
What Haia shows
  • 50+ nanopayment-style events
  • x402 paid / rejected / failed states
  • Agent-level P&L
  • Endpoint-level margin
  • Failed payment reasons
  • Policy-blocked abnormal spend
  • Settlement reconciliation status
  • Execution reliability score
Watch DemoOpen Demo Mode

Demo mode uses seeded Arc / USDC event data to illustrate the Circle-native integration path. Live Circle webhooks, Arc explorer reconciliation, and SDK instrumentation are proposed grant milestones.

[ Risk & Policy ]

Prevent abnormal agent spend before settlement.

Agentic commerce introduces a new risk surface: autonomous systems can initiate financial actions faster than human operators can review them. Haia adds a policy layer before execution risk compounds.

Policy examples
Max USDC per transactionDaily agent budgetApproved counterparties onlyUnknown recipient step-upHigh failure-rate alertAbnormal spend detectionEmergency kill switch
[ Circle Integration ]

Built around Circle-native execution surfaces.

Haia is not a payment app and not an SDK wrapper. The Circle adapter is the ingestion path. The product is the Control Plane.

Arc

Settlement rail for agentic USDC flows.

USDC

Unit for revenue, cost, and limits.

Circle Nanopayments

Event source for per-action payments.

x402

Payment flow for paid API calls.

Circle Wallets

Wallet activity for agents and apps.

Circle Gateway

USDC balance and movement signals.

CCTP / Bridge Kit

Cross-chain USDC execution context.

Developer Console Webhooks

Live event source for reconciliation.

[ Architecture ]

From Circle events to operational intelligence.

  1. 01

    Ingest

    Capture Circle / Arc execution events.

  2. 02

    Normalize

    Map events into Haia’s model.

  3. 03

    Govern

    Evaluate policies before risk compounds.

  4. 04

    Reconcile

    Match actions with settlement records.

  5. 05

    Measure

    Track margin, failures, and reliability.

  6. 06

    Compound

    Build trusted execution history.

[ Execution History ]

Execution history becomes a strategic asset.

Haia’s core product is the Control Plane: observability, policy, reconciliation, and operational intelligence for agentic USDC execution.

As execution history compounds, the same dataset can later support credit-readiness and stablecoin-native working capital through Reprieve.

Execution signals include
Settlement consistencyCompletion reliabilityFailed payment ratioPolicy violation rateVolume stabilityCounterparty qualityAbnormal spend attempts

This is not the initial grant deliverable. It is the long-term expansion path enabled by the Control Plane.

[ Milestones ]

Proposed Circle grant milestones

  1. M1

    Arc-native event layer

    Arc / USDC demo mode, Circle event presets, seeded nanopayment events, and Circle adapter structure.

  2. M2

    Agentic P&L and attribution

    Per-call P&L, agent-level margin, endpoint-level economics, and x402 funnel analytics.

  3. M3

    Settlement reconciliation

    Off-chain action to Circle event to Arc transaction matching, reconciliation status, and mismatch detection.

  4. M4

    Policy guardrails

    Agent budget policies, unknown counterparty controls, abnormal spend checks, and policy decision logs.

  5. M5

    Developer integration path

    Circle SDK instrumentation, webhook ingestion, partner demo, and co-marketing-ready case study.

View Grant Deck
[ Why Haia ]

Haia makes Arc builders easier to fund, operate, and scale.

Haia helps Circle-based teams prove that agentic USDC flows are not only technically possible, but operationally and economically viable.

For developers

See usage, payments, failures, margin, and settlement faster.

For operators

Control policies, reconciliation, auditability, and agent accountability.

For Circle ecosystem

More successful builders, stronger proof, and higher USDC utility.

Team

Sergey Gorovenko

Sergey Gorovenko

Founder & CEO

Built the technical foundation behind Haia's current system.

Ilia Frolov

Ilia Frolov

CRO & Product Architect

Helped define the operator-layer wedge and shape Haia's current product direction.

Tikhon Slasten

Tikhon Slasten

Development Lead

Leads Haia's 3-person engineering team across runtime and instrumentation.

Anton Patrynika

Anton Patrynika

COO

Drives delivery cadence, operating rhythm, and cross-functional execution.

[ Get in touch ]

Built to make agentic USDC execution operationally viable.

Haia gives Arc builders the Control Plane they need after payments work: observe flows, enforce policies, reconcile settlement, prove margin, and build trusted execution history.

Watch DemoView Grant Deck Contact Team

Ilia Frolov · ilya.frolov@haia.finance