European x402 facilitator for Agentic Payments

Verification & transaction layer

The Agentic Facilitator, built for Europe's AI era

The x402 facilitator for agentic payments. An operational layer for an open, agentic payment network built on regulated stablecoins.

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The Agentic Facilitator lets AI agents pay for content, data, goods, and services in regulated stablecoins. It’s an x402 facilitator: built to enable businesses to accept those payments, without operating their own blockchain payment infrastructure or managing payer private keys. The Agentic Facilitator uses AllUnity's regulated, multicurrency, multichain stablecoin platform. The Facilitator does not hold user funds or private keys and cannot independently initiate or modify a payment. It verifies an already signed payment authorization and submits it unchanged to the relevant smart contract for execution.

Use your agent

Built on x402, the emerging standard for agent payments

x402 is an open HTTP-based payment protocol. It revives the dormant HTTP 402 status code so AI agents can pay for content, data, and API access programmatically.

agentic-payment.sh
1$ agent call GET https://btc-echo.de/article/482
2< 402 Payment Required
3< PAYMENT-REQUIRED: eyJ4NDAyVmVyc2lvbiI6Miwi… (base64)
4    scheme "exact" · network "eip155:8453"
5    amount "50000" (atomic) · asset 0x…EURAU
6    payTo 0x93a1…f2c4 · maxTimeoutSeconds 60
7
8$ agent sign --eip3009 transferWithAuthorization
9> EIP-712 signature 0x2d6a75…8b57
10    from · to · value · validAfter · validBefore · nonce
11    client spend policy ok (outside x402 spec)
12
13$ agent call GET https://btc-echo.de/article/482 \
14    --header "PAYMENT-SIGNATURE: eyJ4NDAyVmVyc2lvbiI6Miwi…"
15    btc-echo -> allunity-facilitator POST /verify -> isValid true
16    btc-echo -> allunity-facilitator POST /settle -> broadcast
17< 200 OK
18< PAYMENT-RESPONSE: { success: true,
19    transaction: "0x71c4e9…b201", payer: "0x857b…6b66" }
20< [article body]
21
22— out of x402 scope · batched · T+n —
23
24$ btc-echo redeem --amount 12.40 EURAU --issuer allunity
25< EMT redeemed at par — EUR credited via SEPA

agentic-payment.sh
1$ agent call GET https://btc-echo.de/article/482
2< 402 Payment Required
3< PAYMENT-REQUIRED: eyJ4NDAyVmVyc2lvbiI6Miwi… (base64)
4    scheme "exact" · network "eip155:8453"
5    amount "50000" (atomic) · asset 0x…EURAU
6    payTo 0x93a1…f2c4 · maxTimeoutSeconds 60
7
8$ agent sign --eip3009 transferWithAuthorization
9> EIP-712 signature 0x2d6a75…8b57
10    from · to · value · validAfter · validBefore · nonce
11    client spend policy ok (outside x402 spec)
12
13$ agent call GET https://btc-echo.de/article/482 \
14    --header "PAYMENT-SIGNATURE: eyJ4NDAyVmVyc2lvbiI6Miwi…"
15    btc-echo -> allunity-facilitator POST /verify -> isValid true
16    btc-echo -> allunity-facilitator POST /settle -> broadcast
17< 200 OK
18< PAYMENT-RESPONSE: { success: true,
19    transaction: "0x71c4e9…b201", payer: "0x857b…6b66" }
20< [article body]
21
22— out of x402 scope · batched · T+n —
23
24$ btc-echo redeem --amount 12.40 EURAU --issuer allunity
25< EMT redeemed at par — EUR credited via SEPA

Step 1

Service Request

Agent requests a protected resource / Agent calls a paid endpoint.

Step 2

Payment required

Resource server responds with 402 Payment Required and the payment details in the payload.

Step 3

Signed payment

Agent sends a signed payment authorization to the server.

Step 4

Verification

The Agentic Facilitator verifies the signed payment authorization and submits it unchanged to the relevant smart contract for on-chain execution.

Step 5

Delivery

Resource server grants access. The purchase is returned.

Step 6

Redemption

The stablecoins are transferred directly to the seller's designated wallet. Eligible AllUnity stablecoins can subsequently be redeemed at par through the seller's Business Mint Account, with the corresponding fiat amount paid to its verified bank account.

Customers

Helping businesses earn from AI Agents

The companies putting agentic payments into production, in partnership with AllUnity.

01 / 2

BTC-Echo

From concept to launch in eight weeks: BTC-ECHO, one of the leading voices in German crypto media, is charting its path to becoming a leading agent-ready publisher.

02 / 2

Bluerails

The settlement layer for hospitality discovery Bluerails makes hospitality companies bookable by AI agents, powered by AllUnity's instant, regulated euro-denominated settlement for AI agent transactions.

01 / 3

BTC-Echo

From concept to launch in 8 weeks. BTC Echo one of the leading voices in German crypto media becomes an agent-ready publisher.

02 / 3

Bluerails

The settlement layer for hospitality discovery Powering the agent economy choose to run on with Bluerails.

03 / 3

Masumi Network

The solution

What makes us different

Open rails, not a proprietary network

Settlement runs on public blockchain infrastructure using the open x402 standard and EIP-3009, not a closed ledger. MPP (Machine Payments Protocol) and other protocols are available upon request.)

Direct fiat payout, no new banking relationship required.

Sellers keep their existing bank account. AllUnity handles the stablecoin-to-fiat conversion and payout.

Regulated issuer.

AllUnity is licensed by BaFin and all our stablecoins are classified as E-Money Tokens under MiCAR: segregated 1:1 reserves, statutory redemption at par value at any time. AllUnity supports multiple currencies across multiple blockchain networks.

Start building

Launch a test pilot in weeks, using your actual data.

Get in touch

Step 1

Get setup

Sign a pilot agreement and complete our onboarding process to open a Business Mint Account.

Step 2

Connect your content

Tell us what resources you want accessed and priced. We'll help streamline your setup.

Step 3

Go live

Finalize your partnership agreement and move the setup to production.

Deploy your agent

Tell us which agent, assistant, or skill you want facilitator access from, and we'll help you get it connected. Bring your own wallet or get set up with one of our partners.

Build the new AI agent standard with us.

AllUnity is the European gateway to the agent economy. Reach out about becoming a pilot customer and building the future of payments together.

AllUnity, Sandweg 94, Frankfurt, 60316

Disclaimer

The content of this website is for marketing purposes only and does not constitute an offer or recommendation to purchase stablecoins (E-money tokens – EMTs). This content has not been reviewed or approved by any competent authority of an EU Member State. AllUnity GmbH bears sole responsibility for its content. This is directed exclusively at legal entities and business customers (B2B only) and is not addressed to natural persons, retail customers or consumers.

Agentic Payments / Facilitator: The AllUnity Facilitator does not hold or take possession of user funds and does not have access to users’ private keys. It cannot independently initiate a transfer or modify the amount, recipient or other parameters of a payment authorization already signed by the user. The Facilitator technically verifies the signed authorization and, following successful verification, submits it unchanged to the relevant smart contract for execution.

The White Papers under Art. 51 MiCAR have been published with all material information, including the EMT holders’ redemption right, information on the risks and the mandatory information on principal adverse impacts on the climate and other environmental-related adverse impacts of the consensus mechanism.

The White Papers are available at: allunity.com/whitepapers.

In the event of any inconsistency or discrepancy between the PDF and XHTML formats in AllUnity White Papers, the PDF versions shall prevail.

Redemption Right: Pursuant to Article 49 MiCAR, the holders of EMTs have a statutory right of redemption against AllUnity at any time and at par value.

To view the full terms and conditions and privacy information, please visit https://allunity.com/terms-and-conditions. In the event of any inconsistencies between English and German contents, the English version shall prevail.

Technical Infrastructure, Scope & Data Handling:

The alluniy.ai microsite utilizes third-party service providers to host and operate its features, including Amazon Web Services (AWS) (Amazon Web Services EMEA SARL

38 Avenue John F. Kennedy, L-1855, Luxembourg) for hosting and storage, GitHub (GitHub, Inc., 88 Colin P Kelly Jr St, San Francisco, CA 94107, USA) for deployment, and OpenAI (OpenAI Inc., 1455 3rd Street, San Francisco, CA 94158, USA) for automated processing. The processing of any personal data in the course of visiting and using the services on this microsite is based on our legitimate interest in accordance with Art. 6 (1) f) GDPR. Our interest lies within providing the website and all relevant functionalities to our users and visitors. However, users should avoid submitting confidential business information or (sensitive) personal data into interactive text features.

Due to the engagement of the aforementioned service providers, a transfer of personal data to those service providers (and outside of the EU/EEA) can occur. We have concluded corresponding contractual agreements (including Data Processing Agreements) with these service providers to secure the data transfers and have implemented additional safeguards to minimize the risks of the third country data transfer, where necessary.

Please note that this microsite operates independently from AllUnity GmbH’s regulated core financial platform and e-money token (EMT) issuance infrastructure. Any personal or operational data collected through this site is processed in accordance with applicable privacy laws (including GDPR) and our Privacy Policy (https://allunity.com/privacy). Users may request information, restriction, portability or deletion of their personal data or interaction history at any time by contacting support@allunity.com. Upon receipt of a verified request, we will purge the data from active systems and direct our subprocessors to do the same, subject to statutory

Contact: support@allunity.com | +49 6934875407

AllUnity, Sandweg 94, Frankfurt, 60316

Disclaimer

The White Papers are available at: allunity.com/whitepapers.

In the event of any inconsistency or discrepancy between the PDF and XHTML formats in AllUnity White Papers, the PDF versions shall prevail.

Redemption Right: Pursuant to Article 49 MiCAR, the holders of EMTs have a statutory right of redemption against AllUnity at any time and at par value.

Technical Infrastructure, Scope & Data Handling:

The alluniy.ai microsite utilizes third-party service providers to host and operate its features, including Amazon Web Services (AWS) (Amazon Web Services EMEA SARL

Contact: support@allunity.com | +49 6934875407

AllUnity, Sandweg 94, Frankfurt, 60316

Disclaimer

The White Papers are available at: allunity.com/whitepapers.

In the event of any inconsistency or discrepancy between the PDF and XHTML formats in AllUnity White Papers, the PDF versions shall prevail.

Redemption Right: Pursuant to Article 49 MiCAR, the holders of EMTs have a statutory right of redemption against AllUnity at any time and at par value.

Technical Infrastructure, Scope & Data Handling:

The alluniy.ai microsite utilizes third-party service providers to host and operate its features, including Amazon Web Services (AWS) (Amazon Web Services EMEA SARL

Contact: support@allunity.com | +49 6934875407

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