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Crypto ExchangesExchange profile

K33 Markets: OTC quotes, Nordic funding, custody and API access

K33 Markets offers principal crypto dealing, eight-fiat bank funding and custody. Its all-in spreads, conditional RFQ execution, turnover threshold, API limits and Norwegian MiCA permissions define the practical account proposition.

By Editorial deskOperating status: ActivePublished Sources checked
  • K33 Markets AS is the client counterparty; K33 AB is the separately listed parent.
  • Standard fees are embedded in the bid/ask quote, while Vault and loan arrangements have separate terms.
  • June 2026 terms require expected annual volume above US$100,000, conflicting with the older private-account FAQ.
  • The documented API can quote and trade but leaves deposits and withdrawals to the user interface.

K33 Markets is a Norwegian crypto broker offering direct spot dealing, custody and bank funding for private, corporate and institutional clients. It trades as the customer’s counterparty and hedges externally, rather than matching every customer against a public exchange order book. The service is especially relevant to clients needing Nordic-currency banking, a dealing relationship and programmatic execution.[1][4][19]

The current website describes roughly 30 crypto-assets and eight fiat currencies. Two pages differ on the exact asset and pair counts, so these should be treated as catalogue indications rather than a fixed executable universe. More consequentially, the June 2026 client agreement sets a commercial onboarding policy of expected annual volume above US$100,000; the FAQ still shows a lower US$25,000 threshold for private accounts. Prospective clients should obtain the applicable acceptance terms from the desk.[1][2][3]

OTC spot dealing, RFQ orders and corporate access

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Reference table01

Trading functions and execution boundaries

Trading functions and execution boundaries
FunctionPublished mechanismWhat the client must check
Request for quoteK33 displays an all-in price for a specific pair and quantity.Accept within the quoted validity period and confirm that the system has accepted the trade.Source 4Source 3
Principal counterpartyThe client buys from or sells to K33 Markets AS.K33’s external hedging arrangement affects whether the accepted request can be completed.Source 4
Smart LimitA price condition triggers an automated RFQ attempt for the specified quantity.It is an all-or-none price instruction, not a public order-book order guaranteed to fill at first touch.Source 3Source 2
REST executionQuote, execute, query orders and retrieve balances or order history.The manual uses fill-or-kill orders; price and full size must be executable together.Source 10
WebSocket dataA documented stream of indicative quotations.An indicative tick is not the same as an accepted firm RFQ.Source 11
Corporate accountsThe product page supports multiple authorised users.The client organisation remains responsible for permissions and timely written revocation of a user’s authority.Source 1Source 3
Separate custody / loansVault offers tailored safekeeping; the group also markets crypto-backed borrowing.Vault and lending require their own terms and should not be inferred from a standard trading account.Source 12Source 13Source 14

A Smart Limit can remain active until its trigger, cancellation, a preset timeout or a provider risk decision. On activation, the system requests a quote; if the exact price and quantity cannot be executed, the transaction may not occur. The terms and FAQ describe the retry mechanism differently, so a strategy should not depend on an assumed exact number of retries. Retain the completed-trade notice rather than treating a trigger notification as proof of a fill.[3][2]

K33’s execution policy includes a last-look feature: it may reject a request if the external hedge cannot be completed on acceptable terms. A displayed quote or a client click therefore should not be treated as a final position before system acceptance and confirmation. If a fresh quote is offered, the client can decide whether to accept it. This distinction matters most during abrupt price movements or for a large, less liquid trade.[4][3]

Spread-based trading costs and separate custody agreements

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Public charging model

Public charging model
ItemPublished treatmentScope or qualification
Opening a standard accountNo opening charge.Acceptance and expected-activity requirements still apply.Source 8Source 2
TradingNo separate standard trading fee; remuneration is in the bid/ask quotation.The execution policy includes costs and a discretionary markup in that quote.Source 2Source 4
Cash and crypto depositsNo K33 deposit charge in the FAQ.Banks, intermediaries or the sending platform can apply their own charges.Source 2
WithdrawalsThe FAQ and contract state no K33 withdrawal fee; K33 covers the documented on-chain cost.This does not establish instant release or exemption from destination verification.Source 2Source 3
Standard custodyNo separate standard custody charge in the client agreement.The account still pays the economic cost embedded in trading quotes when it trades.Source 3Source 2
K33 VaultSeparate agreement and commercial terms.Tailored withdrawal controls and other Vault arrangements can override standard-account provisions.Source 3Source 12
Crypto-backed loanIndividually negotiated loan amount, term and loan-to-value.Interest, margin calls and liquidation terms must be read in the actual loan agreement.Source 13

Zero commission is not zero trading cost. The relevant test is the all-in price for the exact quantity against a contemporaneous alternative, including any cash-currency conversion. Buying and immediately selling also exposes the client to both sides of the quoted spread. Historical K33 articles contain example spread figures, but they are not a universal current tariff and are not used here as a guaranteed percentage.[20][4][2]

The conflicts disclosure acknowledges K33’s economic interest as principal counterparty and the possibility of differentiated commercial pricing based on objective criteria. Clients with a separately agreed commercial schedule should check how it interacts with the screen quotation. The inspected public documents do not identify a separate numeric inactivity fee; account suspension or closure rights are a distinct issue from charging for an inactive account.[7][3]

Eight fiat currencies, crypto funding and release times

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Funding and withdrawal arrangements

Funding and withdrawal arrangements
MovementPublished routeOperational condition
Supported cash currenciesNOK, SEK, DKK, EUR, GBP, CHF, USD and CAD.Use the correct bank instructions and currency for the account; a currency balance is different from a stablecoin balance.Source 2Source 1
Fiat depositBank transfer to the specified Norwegian banking arrangement.The FAQ says funds are credited during business hours after arrival. Bank arrival and platform credit are separate stages.Source 2
Fiat withdrawalRequest through the platform to a verified bank destination.The FAQ describes 1–3 business days; bank, AML and other exceptions can extend completion.Source 2Source 3
Crypto depositUse the supported asset and exact network in the account.Network confirmations and manual review may be needed, with slower handling outside business hours.Source 2Source 5
Crypto withdrawalSelect a whitelisted destination and submit the instruction through the platform.Manual release is described as usually taking hours in business hours; the contract’s broader processing conditions still govern.Source 2Source 3
Stablecoin networksThe FAQ specifies ERC-20 rather than TRC-20 for its documented stablecoin route.Confirm the current token/network screen before sending; a token ticker alone does not identify a compatible deposit.Source 2
API movement of assetsThe REST manual confines deposits and withdrawals to the user interface.A bot able to trade is not thereby able to initiate an external transfer through the documented API.Source 10

The public phrase about no size limitations needs a practical qualification. K33 can request source-of-funds evidence, apply account risk controls and set instrument-specific quantity and precision limits. The linked REST manual itself contains minimum and maximum quantities by pair and says deployment details can change. Obtain current limits for the intended instrument and account instead of sizing a transaction from a broad marketing statement.[2][3][10]

The quoted processing times are not interchangeable. A bank transfer might have arrived but still await account allocation; crypto might be visible on-chain but still require confirmation or manual review; an approved withdrawal might still wait for a bank or network. For a time-sensitive trade, establish that the account balance is available and that the intended receiving destination is approved before relying on a specific execution or payout deadline.[2][5][3]

Standard safekeeping, Vault and key-control responsibilities

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Custody layers and their consequences

Custody layers and their consequences
ArrangementPublished structureBoundary
Standard crypto custodyClient assets are separated from K33’s own assets, with pooled wallets and an internal entitlement ledger.Segregation from the company does not require a distinct blockchain address for every client.Source 5
Fiat holdingThe FAQ identifies segregated holdings in a Norwegian SpareBank 1 bank account.This is a provider statement about its banking arrangement, not evidence of a specific deposit-insurance payout to each platform user.Source 2
Security technologyThe custody policy identifies Fireblocks MPC infrastructure, with keys controlled by K33.Fireblocks is described as a technology provider rather than the holder of customer funds.Source 5
K33 VaultIndividual arrangements can include bespoke withdrawal rules and inheritance planning.The Vault agreement controls its costs, approvals and release conditions.Source 12Source 3
Custody lossThe contract provides liability for attributable loss, capped at the asset’s market value when lost.A legal liability rule is different from an insurer promising reimbursement after any event.Source 3

The custody policy says K33 is not currently using another crypto custodian for the described service. It distinguishes its own key management from licensed third-party technology. If the custody arrangement changes, the client agreement provides for notification and an opportunity to withdraw before migration. New deposit or withdrawal addresses can follow a migration, so previously saved instructions should be rechecked after a service-change notice.[5][3]

Two-factor authentication and destination whitelisting are central controls. The FAQ directs lost-password or lost-authenticator cases to [email protected]. Public guidance does not establish a universal post-reset lock duration or a self-service recovery time. A corporate user’s authority also persists until a properly communicated revocation has been processed; changing local access to a computer alone is not the same as removing that person’s account authority.[2][3]

The group’s loan page describes BTC collateral against a USDC loan, with individually agreed loan-to-value and liquidation thresholds. If collateral falls below the contractual level, the borrower may need to add collateral or face a partial or complete sale. The page is an invitation to express interest rather than an approved credit offer, and the disclosures warn that lending can sit outside the regulated MiCA service scope.[13][14]

Account thresholds, verification and access decisions

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Onboarding matters that affect acceptance

Onboarding matters that affect acceptance
RequirementCurrent evidenceHow to resolve it
Age and identityThe application page requires an adult applicant, government-issued ID, address and phone details.Complete the requested identity process and expected-use information.Source 8
Expected annual turnoverJune 2026 terms state a policy of more than US$100,000.The FAQ’s lower private-account figure conflicts; request the current offer and signed terms.Source 3Source 2
Corporate accountBeneficial owners, representatives and authority must be verified.Keep company access and personal transactions separate and update the authorised-user list promptly.Source 3
GeographyThe site markets European access, while authorisation and cross-border availability have a specific legal scope.Confirm acceptance for the actual country and requested service rather than relying on the broad banner.Source 8Source 16Source 17
Account emailThe application page says the email is tied to the account and cannot be changed later.Choose a durable, appropriately controlled address and clarify corporate continuity before onboarding.Source 8

The application page describes a typically same-day KYC review, while the FAQ describes a one-business-day target. Those are onboarding targets, not guaranteed approval times. Additional source-of-funds or corporate-ownership documents can change the timetable. Approval of an account also does not automatically approve every proposed transfer, API connection or separately negotiated custody or credit product.[8][2][3][9]

Desk contact, interruption procedures and complaint escalation

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The Markets FAQ directs account and recovery matters to [email protected], while the public contact page offers a form and [email protected]. Vault advertises a dedicated support line for that service. No general 24/7 staffed telephone dealing commitment was established. Manual funding and crypto release are explicitly associated with business-hour handling in the FAQ, even though quotations and the trading platform operate around the clock.[2][15][12]

Email trading is mentioned in the June 2026 agreement, but it requires separate terms to be accepted. It should not be treated as an automatic emergency replacement for an unavailable platform. During an interruption, use the agreed dealing channel and confirm the status of any request already submitted; an unanswered support email is not evidence that an open instruction was cancelled or a new trade was executed.[3]

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Published customer complaint process

Published customer complaint process
StageActionService target
Written complaintEmail [email protected] or post to the published Oslo address; identify the matter, dates and supporting documents.Use a clear complaint subject and retain the submission.Source 6
Admissibility reviewK33 determines whether the complaint falls within the process and has the required information.Normally within two business days.Source 6
Investigation and responseK33 assesses the evidence and provides its response.Normally within 15 business days; the client is informed if more time is needed.Source 6
Unresolved complaintThe policy identifies Forbrukertilsynet or another appropriate external authority.The body’s jurisdiction and the nature of the dispute determine the available remedy.Source 6

Norwegian MiCA authorisation and cross-border scope

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ESMA’s authorised-provider file identifies K33 Markets AS, LEI 6367008S3JL8VVP6T689, under Norway’s Finanstilsynet with authorisation dated 16 June 2026 and no end date in the inspected record. The listed crypto services are custody and administration, order execution and transfers. The firm’s client contract is therefore the relevant place to identify the regulated counterparty; the listed parent’s stock-market status is a different matter.[16][3]

K33’s 27 August 2026 issuer release says the authorisation was passported into Sweden, Denmark, Finland and Germany after quarter-end. The ESMA row inspected carries an earlier update and an inconsistent final country code, so this profile does not turn the broad European marketing claim into a definitive country-by-country entitlement. Prospective clients outside the established route should obtain confirmation of the contracting entity and available service before funding.[17][16][8]

The disclosure hub also distinguishes the regulated Markets service from research and lending activities that may fall outside MiCA. Permission to execute and custody spot crypto does not itself establish a derivatives, banking or universal lending permission. No additional PSD2 licence is inferred from a passing reference in the conflicts document.[14][16][7]

The Norwegian operator, listed parent and corporate exposure

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Corporate facts and scale measures

Corporate facts and scale measures
ItemVerified or attributed factScope
Trading counterpartyK33 Markets AS; Norwegian organisation number 919578998.The June 2026 client contract identifies the Oslo operator.Source 3
Listed parentK33 AB (publ); the FAQ describes Markets as its wholly owned subsidiary.The parent is listed on Nasdaq First North Growth Market; share ownership is distinct from a customer custody account.Source 2Source 17
Q2 2026 group revenueSEK 192.935 million, reported on 27 August 2026.A consolidated revenue measure, not an active-user count, custody total or exchange-volume league-table statistic.Source 17
First-half revenue / Q2 resultSEK 932.757 million first-half revenue; Q2 net loss of SEK 19.637 million.The release attributes a substantial part of the result to Bitcoin valuation effects; corporate financial performance is separate from client asset ownership.Source 17
Sixty Six Capital relationshipThe release describes approximately 46% ownership and related look-through Bitcoin exposure.This is corporate investment exposure, not a reserve pledged to individual Markets customers.Source 17

The availability of public parent-company reports is useful for assessing the group’s business and finances, but it should not be confused with an assurance report for each customer account. The services at issue here are those supplied by K33 Markets AS under its customer agreement. A shareholder, a custody customer and a borrower can each have materially different rights against different entities or under different agreements.[18][3][13][17]

Operator
K33 Markets AS
Exchange model
Centralised
Service scope
Principal OTC spot brokerage with firm RFQ and Smart Limit instructions, web/API access, eight-fiat bank funding and standard custody. K33 Vault and group lending have separate terms.
Client types
Retail clients; Professional clients; Institutional clients
Pricing publication
Public and quoted pricing
Other names
K33
Pricing scope
Standard trading revenue is in the all-in bid/ask quote rather than a separate commission. The public FAQ states no deposit or withdrawal charge; tailored Vault, account and loan terms require individual quotes.
Funding scope
NOK, SEK, DKK, EUR, GBP, CHF, USD and CAD bank routes plus supported crypto. Bank allocation, manual release, whitelisting and network checks affect availability. The published API cannot initiate external movements.
Custody and asset handling
Client assets are segregated from K33 property, with pooled custody records or separate Vault arrangements. K33 controls keys using documented Fireblocks technology. Standard custody and Vault have different charges and withdrawal controls.
Client eligibility
Adult private and corporate applicants undergo identity, ownership and activity checks. June 2026 terms state expected annual volume above US$100,000; the older FAQ private threshold conflicts. Residence and product acceptance require current confirmation.
Support
Markets account support and recovery: [email protected]. The public contact form and [email protected] are also available; Vault has dedicated support under its own arrangement. Complaint admissibility is normally assessed within two business days, with a response within 15 business days.
Authorisation and registration scope
Independent ESMA match: K33 Markets AS, Finanstilsynet in Norway, MiCA authorisation dated 16 June 2026 for custody, execution and transfers. The issuer reports passporting into Sweden, Denmark, Finland and Germany; a registry country-code conflict does not justify universal European availability. Research and lending may fall outside MiCA.

Exchange metadata checked 21 Oct 2026Source 1Source 2Source 3Source 4Source 5Source 6Source 7Source 8Source 9Source 10Source 11Source 12Source 13Source 14Source 15Source 16Source 17Source 18Source 19Source 20

Covered contracting entities

K33 Markets AS

Jurisdiction
Norway
Covered services
Contractual principal trading counterparty and authorised custody, execution and transfer provider.
Client and location scope
Accepted private, corporate and institutional clients under current regional and activity conditions.

Published terms

Source 3Source 16

K33 AB (publ)

Jurisdiction
Sweden
Covered services
Listed parent company; corporate reporting and investment holdings.
Client and location scope
Parent corporate scope, not substituted for the Markets customer counterparty.
Source 2Source 17

API permissions, statements and account exit

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API access requires approved IP addresses. The linked REST manual separates sandbox and production credentials, authenticates with a bearer token and says a system restart invalidates access tokens. It documents RFQs with validity periods between two and 15 seconds depending on pair and volatility, plus trading, order-status and balance endpoints. Crucially, it states that deposits and withdrawals use the user interface rather than the API. That is the documented permission boundary; it is not a promise that a trading credential can never cause an economic loss.[9][10]

A robust integration needs to distinguish indicative market data, a firm RFQ and a confirmed trade. The WebSocket feed supplies indications; the REST trading flow requests a quote and submits an execution request. When a response is interrupted, check order status and history before retrying. The manual’s instrument-specific precision and quantity limits also need to be reconciled with the deployment supplied by the desk.[11][10]

The client agreement provides quarterly electronic statements and statements on request, and describes exporting the full transaction history from the platform. The custody policy also supports client position records. The inspected public materials do not establish a particular CSV schema, automatic tax filing or complete cost-basis reconstruction across other exchanges. Download statements and trade history before closing the account, and reconcile transfers, fiat conversions and any negotiated custody charges.[3][5]

No execution-capable AI assistant or social-copy trading mandate was established in the inspected Markets materials. Automated pricing, Smart Limit triggering and a customer-built API application have different purposes and authority. A client giving an employee or software process permission to trade should manage that authority explicitly; disabling an external script or device does not itself cancel an order already accepted by K33.[1][3][10]

The client can request termination by emailing [email protected] without a separate termination fee, but assets and outstanding obligations must be settled. The agreement distinguishes ordinary closure from compliance restrictions and provider-initiated termination, including circumstances in which crypto may be converted and returned as cash. For a Vault client, the separate withdrawal agreement can change the exit procedure. Confirm available balances, approved receiving destinations and final records before requesting the account to be closed.[3][12]

Follow the evidence

Sources & further reading

  1. K33 Markets Terms and Conditions, June 2026 K33 Markets AS · Accessed 21 Oct 2026
  2. K33 Markets Order Execution Policy K33 Markets AS · Accessed 21 Oct 2026
  3. K33 Markets Custody Policy K33 Markets AS · Accessed 21 Oct 2026
  4. K33 Markets customer complaints, June 2026 K33 Markets AS · Accessed 21 Oct 2026
  5. Opening a K33 Markets account K33 · Accessed 21 Oct 2026
  6. K33 API documentation index K33 · Accessed 21 Oct 2026
  7. K33 Markets REST OTC API manual K33 Markets AS · Accessed 21 Oct 2026
  8. K33 Markets WebSocket indicative quotes manual K33 Markets AS · Accessed 21 Oct 2026
  9. K33 Vault custody K33 · Accessed 21 Oct 2026
  10. K33 crypto-backed loans K33 · Accessed 21 Oct 2026
  11. K33 Markets AS disclosures K33 Markets AS · Accessed 21 Oct 2026
  12. Contact the K33 Markets desk K33 · Accessed 21 Oct 2026
  13. ESMA interim MiCA register: authorised crypto-asset service providers European Securities and Markets Authority · Accessed 21 Oct 2026
  14. K33 publishes interim report for Q2 2026 K33 AB (publ), distributed by MFN · 27 Aug 2026 · Accessed 21 Oct 2026
  15. K33 financial reports K33 · Accessed 21 Oct 2026
  16. K33: a crypto exchange or a broker? K33 · Accessed 21 Oct 2026

This profile reports dated public information, including exchange-published services and terms. It does not independently test or guarantee trading, custody, pricing or withdrawals. Inclusion is not an endorsement. Permissions and protections apply only to the named legal entity, service and client category; check the current official records and your contract.

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