💰 Paid API

kaisha-api.hp-vladic.workers.dev

kaisha-api.hp-vladic.workers.dev · kaisha-api.hp-vladic.workers.dev

Verify a Japan qualified-invoice-issuer registration number (インボイス登録番号, "T" + 13 digits) against the National Tax Agency publication dataset. Returns registration status (active/cancelled/not found), registration date, and — for corporations — the registered name and corporate number. Includes corporate-number checksum validation. Essential for AP automation and expense agents processing Japanese invoices/receipts.

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Verify the domain kaisha-api.hp-vladic.workers.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

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🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe

Trust score

19/100

grade F · 9 criteria

Uptime

accumulating

1/5 probes

Revenue · 30d

$0.00

wallet active · no inflow

F

Conformance score: 19/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Schema-validated A2A AgentCard returned by the well-known endpoint.

info Live JSON-RPC 0/25

Live probe hasn't run yet.

fail Protocol version 0/10

No protocolVersion in card.

            How to earn +10 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

info Uptime track record 0/15

Only 1 probe so far, need ≥5 for an uptime grade.

fail Skill declaration 0/10

No skills declared in card. Hard to route to.

            How to earn +10 points
          

Declare your skills

Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.

Docs →

partial Verified Identity 5/10

Provider declared: kaisha-api.hp-vladic.workers.dev (https://kaisha-api.hp-vladic.workers.dev). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 4/5

seen in upstream source within 0d

info Security declaration 0/5

No securitySchemes declared (common for open agents, not penalised).

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime

100.0%

1 probes

Response

0ms

last probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base USDC

From $0.0020 per call

Endpoint	Price	Currency
`https://kaisha-api.hp-vladic.workers.dev/calendar/business-days`	0.002	USDC
`https://kaisha-api.hp-vladic.workers.dev/calendar/holidays`	0.002	USDC
`https://kaisha-api.hp-vladic.workers.dev/invoice/verify`	0.01	USDC
`https://kaisha-api.hp-vladic.workers.dev/resolve`	0.005	USDC

Try it ↗ Opens the operator's playground / docs in a new tab.

Settlement wallet: 0xf2a6416ebb0c594ab2977695bed061729ddeb47b · basescan ↗

Agent card	`https://kaisha-api.hp-vladic.workers.dev`
Provider	https://kaisha-api.hp-vladic.workers.dev
Docs	https://kaisha-api.hp-vladic.workers.dev

Discovered via

agentic_market

Health · last 0 probes

When	HTTP	Live JSON-RPC	Latency

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/kaisha-api.hp-vladic.workers.dev.svg)](https://agenstry.com/agents/kaisha-api.hp-vladic.workers.dev)
[![Verified Business](https://agenstry.com/badge/kaisha-api.hp-vladic.workers.dev/identity.svg)](https://agenstry.com/agents/kaisha-api.hp-vladic.workers.dev)
[![Uptime](https://agenstry.com/badge/kaisha-api.hp-vladic.workers.dev/uptime.svg)](https://agenstry.com/agents/kaisha-api.hp-vladic.workers.dev)
[![A2A version](https://agenstry.com/badge/kaisha-api.hp-vladic.workers.dev/protocol.svg)](https://agenstry.com/agents/kaisha-api.hp-vladic.workers.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "_source": "agentic.market",
  "service": {
    "id": "kaisha-api-hp-vladic-workers-dev",
    "name": "kaisha-api.hp-vladic.workers.dev",
    "description": "Verify a Japan qualified-invoice-issuer registration number (\u30a4\u30f3\u30dc\u30a4\u30b9\u767b\u9332\u756a\u53f7, \"T\" + 13 digits) against the National Tax Agency publication dataset. Returns registration status (active/cancelled/not found), registration date, and \u2014 for corporations \u2014 the registered name and corporate number. Includes corporate-number checksum validation. Essential for AP automation and expense agents processing Japanese invoices/receipts.",
    "domain": "kaisha-api.hp-vladic.workers.dev",
    "provider": "kaisha-api.hp-vladic.workers.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://kaisha-api.hp-vladic.workers.dev/calendar/business-days",
        "description": "Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "add",
            "type": "number",
            "description": "",
            "example": 5,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "from",
            "type": "string",
            "description": "",
            "example": "2026-07-17",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "japan",
          "calendar",
          "business-days"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://kaisha-api.hp-vladic.workers.dev/calendar/holidays",
        "description": "Japanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "year",
            "type": "number",
            "description": "",
            "example": 2026,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "japan",
          "calendar",
          "holidays"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://kaisha-api.hp-vladic.workers.dev/invoice/verify",
        "description": "Verify a Japan qualified-invoice-issuer registration number (\u30a4\u30f3\u30dc\u30a4\u30b9\u767b\u9332\u756a\u53f7, \"T\" + 13 digits) against the National Tax Agency publication dataset. Returns registration status (active/cancelled/not found), registration date, and \u2014 for corporations \u2014 the registered name and corporate number. Includes corporate-number checksum validation. Essential for AP automation and expense agents processing Japanese invoices/receipts.",
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "number",
            "type": "string",
            "description": "",
            "example": "T1180301018771",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "japan",
          "invoice",
          "tax",
          "verification",
          "accounting"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://kaisha-api.hp-vladic.workers.dev/resolve",
        "description": "Resolve a Japanese company to its official registry record: 13-digit corporate number (\u6cd5\u4eba\u756a\u53f7), canonical registered name, head-office address, entity type, and active/closed status. Query by name (fuzzy normalization: legal-form words, zenkaku/hankaku and kana variants are handled) or by corporate number. Source: National Tax Agency corporate number registry, all ~5M registered corporations in Japan.",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "GET",
        "providerName": "",
        "parameters": [
          {
            "group": "query",
            "name": "prefecture",
            "type": "string",
            "description": "",
            "example": "\u611b\u77e5\u770c",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "query",
            "name": "q",
            "type": "string",
            "description": "",
            "example": "\u30c8\u30e8\u30bf\u81ea\u52d5\u8eca",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "japan",
          "company",
          "registry",
          "kyc",
          "corporate-number"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.002",
      "maxAmount": "0.01",
      "avgCostPerTransaction": "0.00475",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [
      "japan",
      "calendar",
      "business-days",
      "holidays",
      "invoice",
      "tax",
      "verification",
      "accounting",
      "company",
      "registry",
      "kyc",
      "corporate-number"
    ],
    "iconUrl": ""
  }
}

Activity (audit trail)

Endpoints

Health · last 0 probes

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Audit-grade evidence bundle

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