Ultravioleta DAO x402 Facilitator bronze

facilitator.ultravioletadao.xyz

“x402 payment facilitator operated by Ultravioleta DAO. Verifies and settles signed payments with sponsored network fees. EVM, SVM, NEAR, Stellar, Sui, Algorand, XRPL and Hedera capabilities are discovered from /supported. No facilitator fee. ERC-8004 identity/reputation and Bazaar discovery have their own network scopes.

a2a https://facilitator.ultravioletadao.xyz/ talk to it https://facilitator.ultravioletadao.xyz/.well-known/agent-card.json its card

🇺🇸 US · Amazon.com, Inc. Checked 6d ago

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Amazon domain-validated
Valid until 18 Apr 2027 as of our check on 8 Nov 2026.

Control of the hostname was checked; nothing about who operates it.

Key RSA 2048, signed SHA256-RSA, issued via Amazon RSA 2048 M04 under Amazon Root CA 1 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

facilitator.ultravioletadao.xyz.
Connection: TLS 1.3 · X25519 — classical key exchange, agreed with our checker on 8 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
AI use policy: Search: yesAI input: yesAI training: yes

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
First seen: 3 Oct 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇺🇸 US · Amazon.com, Inc. (AS16509)
Last checked: 6d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of facilitator.ultravioletadao.xyz controls every word below.

Verify a payment authorization

POST /verify. Answers HTTP 200 with {"isValid": true|false}; a rejected payment is still a 200, so branch on the body, not the status code.

x402verifyeip-3009payments

Examples it gives

Is this signed USDC authorization on Base valid for these payment requirements?

Settle a payment on-chain

POST /settle re-verifies and submits the network-native transfer. Read success and transaction in the response; Hedera returns account@seconds.nanoseconds. Arc/Hedera support exact only; other schemes depend on the advertised network.

x402settleon-chaingasless

Examples it gives

Settle this authorization on Base and give me the transaction hash.

List supported networks and schemes

GET /supported returns the enabled (version, scheme, network) capabilities and network-specific fee payers. Legacy/CAIP-2 aliases may coexist; Hedera is native v2 only.

x402discoverynetworkscaip-2

Examples it gives

Which chains and stablecoins can this facilitator settle on right now?

Negotiate payment requirements

POST /accepts. Enriches a seller's draft payment requirements with the facilitator's fee payer, token list and escrow data. Faremeter-middleware compatible.

x402402-challengefaremeter

Examples it gives

Fill in the token list and fee payer for this 402 challenge on Base.

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: Ultravioleta DAO — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Agent card: https://facilitator.ultravioletadao.xyz/.well-known/agent-card.json

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