A2A REGISTRY·AGENT RECORD·f9da91fd-c17c-4dd2-8349-f5fd53108d5c

Provider

AlgoVoi

AlgoVoi Payment Agent

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. Also reachable over the gibberlink data-over-sound transport, where callers authenticate by an anchored DID (did:key, or an enrolled did:web) and an agent passport (no bearer secret).

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
f9da91fd-c17c-4dd2-8349-f5fd53108d5c
Canonical card
https://api1.ilovechicken.co.uk/.well-known/agent-card.json
Endpoint
https://api.algovoi.co.uk/
Protocol version
0.3.0
Agent version
1.0.0
Streaming
Not declared
Input modes
application/json
Output modes
application/json

Reachability record

Last 100 checks shown · 99.9% across 30 days

2026-09-12T20:44:33.483432Z: passed2026-09-12T21:15:14.380205Z: passed2026-09-12T21:45:58.370659Z: passed2026-09-12T22:16:38.778327Z: passed2026-09-12T22:47:14.775406Z: passed2026-09-12T23:18:14.578999Z: passed2026-09-12T23:51:07.285692Z: passed2026-09-13T00:21:49.385430Z: passed2026-09-13T00:52:28.379412Z: passed2026-09-13T01:23:09.681870Z: passed2026-09-13T01:53:50.968782Z: passed2026-09-13T02:24:28.083635Z: passed2026-09-13T02:55:08.573454Z: passed2026-09-13T03:25:47.170208Z: passed2026-09-13T03:56:30.083586Z: passed2026-09-13T04:27:12.180609Z: passed2026-09-13T04:57:49.676359Z: passed2026-09-13T05:28:37.688684Z: passed2026-09-13T05:59:13.781149Z: passed2026-09-13T06:29:52.165091Z: passed2026-09-13T07:00:32.679817Z: passed2026-09-13T07:31:12.579829Z: passed2026-09-13T08:01:48.282364Z: passed2026-09-13T08:32:29.783463Z: passed2026-09-13T09:03:15.283605Z: passed2026-09-13T09:33:51.869305Z: passed2026-09-13T10:04:28.075019Z: passed2026-09-13T10:36:11.476415Z: passed2026-09-13T11:06:47.075557Z: passed2026-09-13T11:37:31.275996Z: passed2026-09-13T12:08:08.368096Z: passed2026-09-13T12:38:46.070862Z: passed2026-09-13T13:09:27.573963Z: passed2026-09-13T13:40:14.786829Z: passed2026-09-13T14:10:57.575714Z: passed2026-09-13T14:41:35.368698Z: passed2026-09-13T15:12:16.767612Z: passed2026-09-13T15:43:12.784652Z: passed2026-09-13T16:13:51.970522Z: passed2026-09-13T16:44:32.679710Z: passed2026-09-13T17:15:15.682715Z: passed2026-09-13T17:45:53.467027Z: passed2026-09-13T18:16:30.978574Z: passed2026-09-13T18:47:21.672306Z: passed2026-09-13T19:17:59.077320Z: passed2026-09-13T19:48:38.310469Z: passed2026-09-13T20:19:19.277881Z: passed2026-09-13T20:50:11.078219Z: passed2026-09-13T21:20:52.377978Z: passed2026-09-13T21:51:38.778486Z: passed2026-09-13T22:22:16.680451Z: passed2026-09-13T22:52:58.785547Z: passed2026-09-13T23:23:59.166737Z: passed2026-09-13T23:57:06.082342Z: passed2026-09-14T00:27:53.468265Z: passed2026-09-14T00:58:44.176185Z: passed2026-09-14T01:29:33.979018Z: passed2026-09-14T02:00:18.276161Z: passed2026-09-14T02:30:57.878211Z: passed2026-09-14T03:01:51.581871Z: passed2026-09-14T03:32:30.978513Z: passed2026-09-14T04:03:13.580379Z: passed2026-09-14T04:33:51.367474Z: passed2026-09-14T05:04:28.375895Z: passed2026-09-14T05:35:12.382093Z: passed2026-09-14T06:06:00.877486Z: passed2026-09-14T06:36:40.079506Z: passed2026-09-14T07:07:19.085683Z: passed2026-09-14T07:37:58.771454Z: passed2026-09-14T08:08:38.285148Z: passed2026-09-14T08:39:19.087281Z: passed2026-09-14T09:10:08.965877Z: passed2026-09-14T09:40:47.871900Z: passed2026-09-14T10:11:28.989031Z: passed2026-09-14T10:43:06.482449Z: passed2026-09-14T11:13:52.979028Z: passed2026-09-14T11:42:27.940962Z: passed2026-09-14T12:13:09.642516Z: passed2026-09-14T12:39:35.278947Z: passed2026-09-14T13:10:24.973611Z: passed2026-09-14T13:41:13.472087Z: passed2026-09-14T14:11:58.768829Z: passed2026-09-14T14:42:50.879224Z: passed2026-09-14T15:13:44.369314Z: passed2026-09-14T15:44:34.163406Z: passed2026-09-14T16:15:25.185773Z: passed2026-09-14T16:46:17.576230Z: passed2026-09-14T17:17:10.068533Z: passed2026-09-14T17:47:56.081481Z: passed2026-09-14T18:18:45.770654Z: passed2026-09-14T18:49:45.912912Z: passed2026-09-14T19:20:37.839262Z: passed2026-09-14T19:51:28.759864Z: passed2026-09-14T20:22:23.366836Z: passed2026-09-14T20:53:11.583832Z: passed2026-09-14T21:23:59.769799Z: passed2026-09-14T21:54:46.282573Z: passed2026-09-14T22:25:33.166875Z: passed2026-09-14T22:56:18.376771Z: passed2026-09-14T23:27:30.671605Z: passed
PassFailureAverage 1193 ms

Declared skills

Verify On-Chain Payment

verify-payment

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.

payment · blockchain · verification · x402 · mpp · ap2

Create Hosted Checkout

create-checkout

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_mainnet.

payment · checkout · hosted · payment-link

Check Payment Status

check-status

Poll the payment status of a checkout link. Input: token (the URL slug from create-checkout, e.g. 'uW9MJN-abc123' — NOT the UUID id field). Returns status: active | paid | expired | cancelled.

payment · status · polling

Post Twitter Checkout

post-twitter-checkout

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 — reply target), label (optional), preferred_network (optional). Returns checkout_url, token, and tweet_id of the posted reply.

payment · checkout · twitter · x · social

Agent Trust Bench

agent-trust-bench

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.

research · x402 · agent-safety · benchmark · mcp

Registry Agent Card snapshot

Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.

Show JSON
{
  "protocolVersion": "0.3.0",
  "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. Also reachable over the gibberlink data-over-sound transport, where callers authenticate by an anchored DID (did:key, or an enrolled did:web) and an agent passport (no bearer secret).",
  "author": "AlgoVoi",
  "wellKnownURI": "https://api1.ilovechicken.co.uk/.well-known/agent-card.json",
  "url": "https://api.algovoi.co.uk/",
  "version": "1.0.0",
  "provider": {
    "organization": "AlgoVoi",
    "url": "https://algovoi.co.uk/"
  },
  "documentationUrl": null,
  "iconUrl": "https://algovoi.co.uk/favicon.ico",
  "supportsAuthenticatedExtendedCard": true,
  "security": [
    {
      "apiKey": []
    }
  ],
  "securitySchemes": {
    "apiKey": {
      "in": "header",
      "name": "Authorization",
      "type": "apiKey",
      "description": "Bearer <tenant_api_key>. Obtain via api.algovoi.co.uk/signup"
    }
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://api.algovoi.co.uk/ext/scoped-authorization-receipts/v1",
        "params": {
          "role": "issuer-verifier",
          "receipt_binds": [
            "agent_id",
            "action",
            "resource",
            "request_digest",
            "provider_did",
            "issued_at",
            "jurisdiction"
          ],
          "receipt_outcomes": [
            "ALLOW",
            "REFER",
            "DENY"
          ],
          "receipt_transport": {
            "type": "response_body",
            "field": "compliance_receipt"
          },
          "receipt_issued_for": [
            "payment.authorize",
            "payment.settle",
            "compliance.screen"
          ],
          "receipt_profile_uri": "https://api.algovoi.co.uk/compliance/attestation",
          "receipt_verification": {
            "format": "JWS",
            "jwks_uri": "https://api.algovoi.co.uk/.well-known/jwks.json",
            "algorithms": [
              "EdDSA"
            ]
          },
          "authority_manifest_uri": "https://api.algovoi.co.uk/.well-known/did.json"
        },
        "required": false,
        "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."
      }
    ]
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/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_mainnet.",
      "tags": [
        "payment",
        "checkout",
        "hosted",
        "payment-link"
      ],
      "examples": [
        "Create a checkout link for £9.99 (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' — 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 — 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 £9.99 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"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "f9da91fd-c17c-4dd2-8349-f5fd53108d5c"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/f9da91fd-c17c-4dd2-8349-f5fd53108d5c

Test message

Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.

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