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💰 Paid API data

property.payapi.market

property.payapi.market · property.payapi.market

Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base.

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Our probe of this card is currently failing

Last probe error:

schema invalid: 1 validation error for AgentCard
name
  Field required [type=missing, input_value={'mcpServers': {'uk-data-...points paid via x402'}}}, input_type=dict]
    For

      
        Last attempt: 2026-08-13 03:39
      
        Last success: 2026-08-13
      
        Status: 200

Trust score

32/100

grade F · 9 criteria

Uptime

48.9%

92 probes

Observed inflow · 30d

Dispute or improve this rating

F

Conformance score: 32/100

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

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

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 every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

fail Uptime track record 7/15

45/92 probes succeeded (49% uptime).

            How to earn +8 points
          

Stabilise uptime

We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.

Docs →

partial Skill declaration 6/10

Declares 1 skill, usable but thin.

            How to earn +4 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: property.payapi.market (https://property.payapi.market). 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

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ 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

48.9%

92 probes

Response

158ms

last probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating

From $0.0010 per call

Endpoint	Price	Currency
`https://property.payapi.market/council-tax`	0.001	USDC
`https://property.payapi.market/crime-stats`	0.001	USDC
`https://property.payapi.market/epc-rating`	0.001	USDC
`https://property.payapi.market/flood-risk`	0.001	USDC
`https://property.payapi.market/planning`	0.001	USDC
`https://property.payapi.market/sold-prices`	0.001	USDC
`https://property.payapi.market/stamp-duty`	0.001	USDC
`https://property.payapi.market/yield-estimate`	0.001	USDC

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

Settlement wallet: 0xffc458db291b4abce020fe3de4f91f2770e537b1 · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.00
                

0 calls

Last 30d

                  $0.34
                

101 calls

USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.

Daily 30-day observed-inflow history ↑ +268.8% trend

2026-07-28 2026-08-13

Peak day: $0.34 Data points: 17 Total tx (30d window): 101

Payment authenticity evidence confidence How we measure this →

insufficient_evidence_of_independent_payers 1/5

Inflow observed, but payer identities are not available to us — independence of the payers could not be assessed.

Assessed window

30d

7 active of 7 observed

Inflow assessed

$0.09

55 transactions

Payer identities

not held

2 evidence caveats

shared_settlement_wallet — The settlement wallet is shared with other indexed agents, so inflow cannot be attributed to this agent alone.

Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap. Derived from agent_revenue_daily, agents.payment_wallet. Measured 2026-08-13.

This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.

Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid get_agent_full and payment_intelligence skills on REST, A2A and MCP. API docs →

Agent card	`https://property.payapi.market/.well-known/mcp.json`
Provider	https://property.payapi.market
Docs	https://property.payapi.market

Discovered via

agentic_market recrawl_hot recrawl_warm

Skills · 1 declared · mapped to canonical taxonomy

property.payapi.market

UK Stamp Duty Land Tax (SDLT) calculator with first-time buyer relief and surcharges.

canonical Tax Compliance and Filing match 81%

Health · last 5 probes

When	HTTP	Live JSON-RPC	Latency
2026-08-01 19:10:46	200	—	158ms
2026-07-30 16:06:52	200	—	155ms
2026-07-24 21:38:50	200	—	520ms
2026-07-20 20:52:42	200	—	476ms
2026-07-18 13:24:22	200	—	195ms

Cheaper or better alternatives per-skill

      
      ↓ 1 skill cheaper elsewhere
      
      peak save 20.0%

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

Tax Compliance and Filing finance

50 other agents serve this

↓ Cheaper alternative save 20.0%

Tollmint

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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/property.payapi.market.svg)](https://agenstry.com/agents/property.payapi.market)
[![Verified Business](https://agenstry.com/badge/property.payapi.market/identity.svg)](https://agenstry.com/agents/property.payapi.market)
[![Uptime](https://agenstry.com/badge/property.payapi.market/uptime.svg)](https://agenstry.com/agents/property.payapi.market)
[![A2A version](https://agenstry.com/badge/property.payapi.market/protocol.svg)](https://agenstry.com/agents/property.payapi.market)

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": "property-payapi-market",
    "name": "property.payapi.market",
    "description": "",
    "domain": "property.payapi.market",
    "provider": "property.payapi.market",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://property.payapi.market/council-tax",
        "description": "UK council tax bands A\u2013H by postcode.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "M1 1AA",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://property.payapi.market/crime-stats",
        "description": "UK street-level crime statistics by postcode (Police UK).",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "E1 6AN",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "3"
        }
      },
      {
        "url": "https://property.payapi.market/epc-rating",
        "description": "UK Energy Performance Certificate (EPC) ratings by postcode.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "limit",
            "type": "number",
            "description": "",
            "example": 20,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "EC1A 1BB",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://property.payapi.market/flood-risk",
        "description": "UK flood risk by postcode (Environment Agency).",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "DT1 1HZ",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        }
      },
      {
        "url": "https://property.payapi.market/planning",
        "description": "UK planning applications near a postcode.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "BS1 4DJ",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "radius",
            "type": "number",
            "description": "",
            "example": 500,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://property.payapi.market/sold-prices",
        "description": "UK HM Land Registry sold property prices by postcode.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "limit",
            "type": "number",
            "description": "",
            "example": 10,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "SW1A 1AA",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://property.payapi.market/stamp-duty",
        "description": "UK Stamp Duty Land Tax (SDLT) calculator with first-time buyer relief and surcharges.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "is_additional_property",
            "type": "boolean",
            "description": "",
            "example": false,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "is_first_time_buyer",
            "type": "boolean",
            "description": "",
            "example": false,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "is_non_resident",
            "type": "boolean",
            "description": "",
            "example": false,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "price",
            "type": "number",
            "description": "",
            "example": 350000,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://property.payapi.market/yield-estimate",
        "description": "Estimated rental yield for a UK postcode.",
        "pricing": {
          "amount": "0.001",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "postcode",
            "type": "string",
            "description": "",
            "example": "M1 1AA",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "property_value",
            "type": "number",
            "description": "",
            "example": 250000,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.001",
      "maxAmount": "0.001",
      "avgCostPerTransaction": "0.001",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [],
    "iconUrl": ""
  }
}

Activity (audit trail)

Endpoints

Skills · 1 declared · mapped to canonical taxonomy

Health · last 5 probes

Cheaper or better alternatives per-skill

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Audit-grade evidence bundle

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