{"id":3148,"name":"AlgoVoi Payable Rail","description":"Tenant-free metered signed-verification rail. Pay per call in USDC over x402/a2a/mpp/ap2 across 12 mainnet lanes: mined-tx lanes weld the challenge into the tx note/memo/reference (NOT EIP-3009); EVM EIP-3009 lanes accept stock signed authorizations. No API key, payment is the auth. Every response carries an offline-verifiable Ed25519 receipt.","card_url":"https://pay.algovoi.co.uk/.well-known/agent-card.json","endpoint":"https://pay.algovoi.co.uk/a2a","protocol_version":"0.3.0","first_seen":"2026-10-08T14:33:40.657174+00:00","last_verified":"2026-10-08T14:33:40.657174+00:00","card":{"did":"did:web:pay.algovoi.co.uk","url":"https://pay.algovoi.co.uk/a2a","name":"AlgoVoi Payable Rail","skills":[{"id":"pay-verify-receipt","name":"Verify payment/settlement receipt","tags":["x402","payments","verification","algorand","receipts"],"inputModes":["application/json"],"description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Verify an x402/AP2 settlement attestation or signed receipt (JWS) offline against the platform JWKS and return a signed verification receipt. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","outputModes":["application/json"]},{"id":"pay-verify-rfc9421","name":"Verify RFC 9421 HTTP message signature","tags":["x402","payments","verification","algorand","receipts"],"inputModes":["application/json"],"description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Verify an RFC 9421 HTTP message signature (Signature-Input / Signature / Content-Digest) against a supplied public key and return a signed verification receipt. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","outputModes":["application/json"]},{"id":"pay-compliance-receipt","name":"Signed compliance receipt","tags":["x402","payments","verification","algorand","receipts"],"inputModes":["application/json"],"description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Produce a signed compliance/sanctions-screening receipt for a counterparty payment (wave 2, not yet enabled). Not yet enabled (wave 2).","outputModes":["application/json"]},{"id":"pay-url-screen","name":"Screen a URL for safety","tags":["x402","payments","verification","algorand","receipts"],"inputModes":["application/json"],"description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Screen a URL before an agent fetches or acts on it (SSRF / private-network / cloud-metadata host / homograph / bad-TLD / TLS checks) and return the allow/escalate/block verdict plus a signed, offline-verifiable receipt attesting the screen. Pay-tier structural safety check; full compliance/sanctions screening is a tenant-grade service. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","outputModes":["application/json"]},{"id":"negotiate-payment-lane","name":"Chain-agnostic payment-lane negotiation","tags":["negotiation","chain-agnostic","caip-2","interoperability","x402","a2a","mpp","ap2","discovery"],"inputModes":["application/json"],"description":"Chain-agnostic capability match. POST {chains:[...], protocols:[...], service_id?} to /pay/v1/negotiate with the chains and protocols you support (CAIP-2 ids, plain names, or hyphen/underscore forms) and get back the lanes you share with the rail plus a recommended pick. GET /pay/v1/negotiate returns the full capability set. Unauthenticated and read-only: mints no token, changes no state, settles nothing; the payment happens afterward via the chosen lane's 402. Response fields: negotiated, common_lanes, common_protocols, recommended, next.","outputModes":["application/json"]}],"version":"1.0.0","provider":{"url":"https://pay.algovoi.co.uk","organization":"AlgoVoi"},"security":[],"description":"Tenant-free metered signed-verification rail. Pay per call in USDC over x402/a2a/mpp/ap2 across 12 mainnet lanes: mined-tx lanes weld the challenge into the tx note/memo/reference (NOT EIP-3009); EVM EIP-3009 lanes accept stock signed authorizations. No API key, payment is the auth. Every response carries an offline-verifiable Ed25519 receipt.","capabilities":{"streaming":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","params":{"lanes":[{"id":"algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k","asset":"31566704","binding":"note-binding","decimals":6,"asset_name":"USDC","scheme_kind":"avm-note","note_binding":"mandatory"},{"id":"eip155:8453","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USD Coin' version '2', chainId 8453, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USD Coin","chainId":8453,"version":"2","verifyingContract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}},{"id":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","note":"scheme:exact = Solana reference-bound settlement; include the server-derived svm_reference_pubkey (from the 402) as a read-only account in your USDC transfer","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","binding":"solana-reference","decimals":6,"asset_name":"USDC","scheme_kind":"solana-reference","reference_binding":"mandatory"},{"id":"stellar:pubnet","note":"scheme:exact = Stellar MEMO_TEXT-bound settlement; set the tx MEMO_TEXT to the server-derived weld (from the 402). Stock clients cannot pay this lane.","asset":"USDC:GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN","binding":"memo-binding","decimals":7,"asset_name":"USDC","scheme_kind":"stellar-memo","memo_binding":"mandatory"},{"id":"hedera:mainnet","note":"scheme:exact = Hedera TIP tx-memo-bound settlement of native USDC (HTS); set the tx memo to the server-derived bytes weld (from the 402). Stock clients cannot pay this lane.","asset":"0.0.456858","binding":"memo-binding","decimals":6,"asset_name":"USDC","scheme_kind":"hedera-memo","memo_binding":"mandatory"},{"id":"voi:mainnet","note":"scheme:exact = Voi AVM ASA note-bound settlement; set the tx note to the server-derived weld (from the 402). Stock clients cannot pay this lane.","asset":"302190","binding":"note-binding","decimals":6,"asset_name":"aUSDC","asset_note":"Aramid-bridged USDC (ASA), not native Circle USDC","scheme_kind":"voi-asa-note","note_binding":"mandatory"},{"id":"eip155:4217","note":"scheme:exact = Tempo TIP-20 transferWithMemo settlement; call transferWithMemo with the bytes32 memo weld (from the 402). A plain ERC-20 transfer is rejected.","asset":"0x20c000000000000000000000b9537d11c60e8b50","binding":"memo-binding","decimals":6,"asset_name":"USDC.e","asset_note":"bridged USDC.e (Stargate) on Tempo, not native Circle USDC","scheme_kind":"tempo-memo","memo_binding":"mandatory"},{"id":"eip155:143","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USDC' version '2', chainId 143, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0x754704Bc059F8C67012fEd69BC8A327a5aafb603","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USDC","chainId":143,"version":"2","verifyingContract":"0x754704Bc059F8C67012fEd69BC8A327a5aafb603"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}},{"id":"eip155:137","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USD Coin' version '2', chainId 137, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USD Coin","chainId":137,"version":"2","verifyingContract":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}},{"id":"eip155:42161","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USD Coin' version '2', chainId 42161, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USD Coin","chainId":42161,"version":"2","verifyingContract":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}},{"id":"eip155:10","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USD Coin' version '2', chainId 10, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USD Coin","chainId":10,"version":"2","verifyingContract":"0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}},{"id":"eip155:5042","note":"scheme:exact = stock EIP-3009 signed authorization we settle; STOCK EVM x402 clients CAN pay this lane (EIP-712 domain name 'USDC' version '2', chainId 5042, to == payTo, value == price exact). An optional challenge_token binds the payment to the request/lane/TTL, not required.","asset":"0x3600000000000000000000000000000000000000","binding":"eip3009-authorization","decimals":6,"asset_name":"USDC","scheme_kind":"eip3009-exact","eip712_domain":{"name":"USDC","chainId":5042,"version":"2","verifyingContract":"0x3600000000000000000000000000000000000000"},"authorization_weld":{"to":"== payTo","nonce":"keccak256(payment_reference), optional; NOT required (lane accepts tokenless stock payments)","value":"== price (exact)","optional":true}}]},"required":true,"description":"Supports payments using the x402 protocol for on-chain settlement. scheme:exact is a per-lane binding: mined-tx lanes weld the challenge into the tx note/memo/reference (NOT stock EIP-3009); EVM EIP-3009 lanes accept a stock signed authorization with an optional nonce weld. See params.lanes for each lane's CAIP-2 id and binding."}],"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"0.3.0","securitySchemes":{"x402-payment":{"type":"http","scheme":"x402","description":"Payment is the authentication. No API key/bearer. Each paid skill returns an x402 v2 402 challenge with one accept per enabled lane; pay the USDC amount to payTo on your chosen lane, bound per that lane's scheme (challenge welded into the tx note/memo/reference on mined-tx lanes; stock EIP-3009 signed authorization on EVM lanes), then resubmit with the X-PAYMENT proof. See /pay/v1/index."}},"documentationUrl":"https://pay.algovoi.co.uk/pay/v1/index","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"preferredTransport":"JSONRPC","additionalInterfaces":[{"url":"https://pay.algovoi.co.uk/a2a","transport":"JSONRPC"}]},"signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-08T14:33:40.657174+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Global A2A Registry","source_url":"https://api.a2a-registry.org/public/agents","last_check":{"checked_at":"2026-10-08T14:33:40.657174+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"skills":[{"skill_id":"negotiate-payment-lane","name":"Chain-agnostic payment-lane negotiation","description":"Chain-agnostic capability match. POST {chains:[...], protocols:[...], service_id?} to /pay/v1/negotiate with the chains and protocols you support (CAIP-2 ids, plain names, or hyphen/underscore forms) and get back the lanes you share with the rail plus a recommended pick. GET /pay/v1/negotiate returns the full capability set. Unauthenticated and read-only: mints no token, changes no state, settles nothing; the payment happens afterward via the chosen lane's 402. Response fields: negotiated, common_lanes, common_protocols, recommended, next.","tags":["negotiation","chain-agnostic","caip-2","interoperability","x402","a2a","mpp","ap2","discovery"],"quality_warning":false},{"skill_id":"pay-url-screen","name":"Screen a URL for safety","description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Screen a URL before an agent fetches or acts on it (SSRF / private-network / cloud-metadata host / homograph / bad-TLD / TLS checks) and return the allow/escalate/block verdict plus a signed, offline-verifiable receipt attesting the screen. Pay-tier structural safety check; full compliance/sanctions screening is a tenant-grade service. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","tags":["x402","payments","verification","algorand","receipts"],"quality_warning":false},{"skill_id":"pay-compliance-receipt","name":"Signed compliance receipt","description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Produce a signed compliance/sanctions-screening receipt for a counterparty payment (wave 2, not yet enabled). Not yet enabled (wave 2).","tags":["x402","payments","verification","algorand","receipts"],"quality_warning":false},{"skill_id":"pay-verify-rfc9421","name":"Verify RFC 9421 HTTP message signature","description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Verify an RFC 9421 HTTP message signature (Signature-Input / Signature / Content-Digest) against a supplied public key and return a signed verification receipt. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","tags":["x402","payments","verification","algorand","receipts"],"quality_warning":false},{"skill_id":"pay-verify-receipt","name":"Verify payment/settlement receipt","description":"Tenant-free metered x402 service: no API key, payment is the auth (USDC on every enabled mainnet lane: mined-tx lanes weld the challenge into the tx note/memo/reference; EVM EIP-3009 lanes accept stock signed authorizations). Verify an x402/AP2 settlement attestation or signed receipt (JWS) offline against the platform JWKS and return a signed verification receipt. Price $0.01 USDC per call; returns an offline-verifiable Ed25519 receipt binding settled_payment_ref -> request_hash -> response_hash.","tags":["x402","payments","verification","algorand","receipts"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"checked_at":"2026-10-08T14:33:40.657174+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":null,"protocol_check":null,"events":[],"relationships":[],"verification":{"agent_card_url":"https://pay.algovoi.co.uk/.well-known/agent-card.json","last_successful_card_check":"2026-10-08T14:33:40.657174+00:00","latest_card_check":{"checked_at":"2026-10-08T14:33:40.657174+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"signature_status":"unsigned","signature_checked_at":"2026-10-08T14:33:40.657174+00:00","task_endpoint_tested":false,"task_execution_tested":false,"endpoint_tls_checked_at":null,"endpoint_tls_reachable":null,"protocol_check_state":null,"protocol_checked_at":null,"provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null}}