Back to AlgoVoi Payment Agent
Card snapshot
algovoi.co.uk
·
2026-07-03 04:30:09 UTC
·
c7d504601a07f078c25991970c3407202f93c3f7f9f5d773b5efadd8e4fad9fe
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"name": "AlgoVoi Payment Agent",
"description": "Multi-chain, multi-protocol crypto payment verification agent. Verifies on-chain payments (Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, ARC) and gates access to resources using x402, MPP (IETF), or AP2 (Google Agentic Payments) protocols.",
"url": "https://api.algovoi.co.uk",
"version": "1.0.0",
"provider": {
"organization": "AlgoVoi",
"url": "https://algovoi.co.uk"
},
"iconUrl": "https://algovoi.co.uk/favicon.ico",
"capabilities": {
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false,
"extensions": [
{
"uri": "https://api.algovoi.co.uk/ext/scoped-authorization-receipts/v1",
"description": "Issues and verifies scoped authorization (compliance) receipts for high-impact payment actions. Each receipt binds a closed categorical outcome to the action, resource, request digest, issuing provider DID, and issuance time, signed for offline verification against the published JWKS.",
"required": false,
"params": {
"role": "issuer-verifier",
"authority_manifest_uri": "https://api.algovoi.co.uk/.well-known/did.json",
"receipt_issued_for": [
"payment.authorize",
"payment.settle",
"compliance.screen"
],
"receipt_transport": {
"type": "response_body",
"field": "compliance_receipt"
},
"receipt_binds": [
"agent_id",
"action",
"resource",
"request_digest",
"provider_did",
"issued_at",
"jurisdiction"
],
"receipt_outcomes": [
"ALLOW",
"REFER",
"DENY"
],
"receipt_verification": {
"format": "JWS",
"algorithms": [
"EdDSA"
],
"jwks_uri": "https://api.algovoi.co.uk/.well-known/jwks.json"
},
"receipt_profile_uri": "https://api.algovoi.co.uk/compliance/attestation"
}
}
]
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"securitySchemes": {
"apiKey": {
"type": "apiKey",
"in": "header",
"name": "Authorization",
"description": "Bearer <tenant_api_key>. Obtain via api.algovoi.co.uk/signup"
}
},
"security": [
{
"apiKey": []
}
],
"trust": {
"signals": [
{
"signal_type": "behavioral_attestation",
"provider": "did:web:agent-trust-bench.algovoi.co.uk",
"evidence_type": "signed_behavioral_credential",
"credential_header": "X-ATB-ZK-Credential",
"freshness_ttl_seconds": 2592000,
"verifiable_offline": true,
"verification_endpoint": "https://agent-trust-bench.algovoi.co.uk/agent-trust-bench/.well-known/atb-keys.json",
"descriptor_url": "https://agent-trust-bench.algovoi.co.uk/.well-known/a2a-trust-signal.json"
}
]
},
"skills": [
{
"id": "verify-payment",
"name": "Verify On-Chain Payment",
"description": "Verify that a blockchain transaction satisfies the payment requirements for a gated resource. Supports x402, MPP, and AP2 protocols on Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, and ARC networks. Returns verified=true and an access_token JWT on success.",
"tags": [
"payment",
"blockchain",
"verification",
"x402",
"mpp",
"ap2"
],
"examples": [
"Verify tx ABC123 on algorand_mainnet for resource premium-content",
"Check if payment has been received for checkout token chk_xyz"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "create-checkout",
"name": "Create Hosted Checkout",
"description": "Create a hosted payment link for a given amount. Returns a checkout URL and token that an end-user can open to complete payment. Input: amount (major fiat units, e.g. 9.99), currency (ISO 4217, e.g. GBP), label (description), preferred_network (optional), redirect_url (optional). Supported networks: algorand_mainnet, voi_mainnet, hedera_mainnet, stellar_mainnet, base_mainnet, solana_mainnet, tempo_mainnet, arc_testnet.",
"tags": [
"payment",
"checkout",
"hosted",
"payment-link"
],
"examples": [
"Create a checkout link for \u00a39.99 (amount: 9.99, currency: GBP)",
"Create a checkout link for $49.00 on Algorand mainnet"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "check-status",
"name": "Check Payment Status",
"description": "Poll the payment status of a checkout link. Input: token (the URL slug from create-checkout, e.g. 'uW9MJN-abc123' \u2014 NOT the UUID id field). Returns status: active | paid | expired | cancelled.",
"tags": [
"payment",
"status",
"polling"
],
"examples": [
"Check if checkout uW9MJN-abc123 has been paid"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "post-twitter-checkout",
"name": "Post Twitter Checkout",
"description": "Create a hosted checkout link and post it as a reply to a tweet (or as a new tweet) using the tenant's connected X bot credentials. Input: amount (major fiat units), currency (ISO 4217), tweet_id (optional \u2014 reply target), label (optional), preferred_network (optional). Returns checkout_url, token, and tweet_id of the posted reply.",
"tags": [
"payment",
"checkout",
"twitter",
"x",
"social"
],
"examples": [
"Reply to tweet 1234567890 with a \u00a39.99 checkout link",
"Post a $50 payment request as a new tweet via the connected X bot"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
},
{
"id": "agent-trust-bench",
"name": "Agent Trust Bench",
"description": "Research environment measuring autonomous AI agent payment decisions under x402. 35 profiles spanning benign, adversarial, multi-turn, and budget-enforcement scenarios. Agents can probe profiles via GET /{profile_id}, refuse via POST /refused/{profile_id}, and declare pre-authorisation via POST /authorised-declaration. Available as an MCP server (bench_mcp_server.py, stdio transport) and via Bazaar discovery at /discovery/resources. Max transaction: $1.00 USDC. No auth required. Research disclosure at /disclosure-policy.",
"tags": [
"research",
"x402",
"agent-safety",
"benchmark",
"mcp"
],
"examples": [
"List all bench profiles at agent-trust-bench.algovoi.co.uk/discovery/resources",
"Probe the 'cheap' profile: GET agent-trust-bench.algovoi.co.uk/cheap",
"Run all 35 profiles with bench_runner.py --persona policy"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
]
}
],
"resources": [
{
"id": "agent-trust-bench-discovery",
"name": "Agent Trust Bench \u2014 Bazaar Discovery",
"url": "https://agent-trust-bench.algovoi.co.uk/discovery/resources",
"description": "Bazaar-schema catalog of all 35 bench profiles with x402 payment details."
},
{
"id": "agent-trust-bench-x402-well-known",
"name": "Agent Trust Bench \u2014 x402 Discovery",
"url": "https://agent-trust-bench.algovoi.co.uk/.well-known/x402.json",
"description": "x402 discovery document including MCP server configuration."
}
],
"signatures": [
{
"protected": "eyJhbGciOiJFZERTQSIsImprdSI6Imh0dHBzOi8vYXBpLmFsZ292b2kuY28udWsvLndlbGwta25vd24vandrcy5qc29uIiwia2lkIjoiZDA0ODFkZjRjYmJkYThlOGFiYTg2NzA5NDE5ODg0ZWYiLCJ0eXAiOiJKT1NFIn0",
"signature": "uJ87-a88-mWrnN4PMo-33NYYjFvsAqaB9mB_dkKyTewHp07LuX2aJJhS5UVzDFEkDOYqD73GJsjIHwQf2ulhDg"
}
]
}