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📊 Intel view 📋 Audit JSON 🔄 Changelog
57
💰 Paid API live JSON-RPC A2A 2024-11-05 v1.0.0

PostcodeContext.UK

api.postcodecontext.uk · PostcodeContext.UK

Comprehensive Great Britain Postcode & Outcode Intelligence API covering England, Scotland, and Wales. Provides ONS Census 2021 demographics, Indices of Deprivation deciles (English IoD 2025, Scottish SIMD 2020, Welsh WIMD 2025), Land Registry property metrics, Ofcom broadband speeds, and spatial proximity to schools and healthcare.

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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://api.postcodecontext.uk/.well-known/agent-card.json and the next probe clears this panel.
Field What we saw What we stored
securitySchemes Input should be a valid dictionary dropped — this field was not indexed
Trust score
57/100
grade D · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~199 ms response
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
7 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 57/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown click to collapse breakdown
partial Valid AgentCard 9/10
AgentCard did not read cleanly: 1 field we could not read. Scored on what we could read, not on a card that arrived as published — the card findings name every affected field and what we did with it.
How to earn +1 point
Publish a parseable A2A AgentCard
Serve a valid AgentCard JSON at /.well-known/agent-card.json. The A2A 1.0 schema is the reference; we accept the v0.x backwards-compatible variant too.
Docs
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~199 ms).
partial Protocol version 2/10
Declares unrecognised version '2024-11-05'.
How to earn +8 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) 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).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 4 skills with structured metadata. 4 skills without tags — optional in 0.x, REQUIRED once you move the card to v1.0.
partial Verified Identity 5/10
Provider declared: PostcodeContext.UK (https://api.postcodecontext.uk). 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
partial Security declaration 2/5
Declares 1 security scheme(s) but none use PKCE or mTLS.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs
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 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

7 snapshots drifted 6× Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-31 21:01:49 current 65e1f9dac3c5… view →
2026-10-29 06:40:36 d5f8106fc9a8… view →
2026-10-29 00:41:38 04891200062a… view →
2026-10-28 03:45:28 3264d8175e7d… view →
2026-10-27 16:25:18 dc77c1dad1ec… view →
2026-10-25 13:23:04 909699ffe258… view →
2026-10-24 20:03:06 69abb52d0c35… view →
Uptime
accumulating
1 direct probes · 30d
Response
37ms
last direct probe
Skills
4
declared
Streaming
✓
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent… ⌘/Ctrl + Enter

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0050 per call
Endpoint Price Currency
https://api.postcodecontext.uk/api/v1/batch
Base
0.05 USDC
https://api.postcodecontext.uk/api/v1/compare
Base
0.01 USDC
https://api.postcodecontext.uk/api/v1/outcode/:outcode
Base
0.005 USDC
https://api.postcodecontext.uk/api/v1/postcode/:postcode
Base
0.005 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x8ab7568ac097523e81a94644235fcf19a2b85670 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 4
Observed on-chain inflow verified on-chain
Last 7d
$1.44
67 transfers · synced 2026-10-31
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the wallet. Inflow to a wallet, not proof that every transfer was a paid call.
How the last 30 days were settled
$1.65 in the ledger, not classified yet. Each transfer is read once to tell facilitator-settled x402 payments from plain transfers. How we classify
Cross-check: Coinbase's Bazaar reports 35 calls in 30 days to this wallet across 4 listed resources; our ledger observed 74 transfers (0 facilitator-settled) over 26 of 30 scanned days. Different counters; neither is assumed correct.
Payment authenticity evidence confidence How we measure this →
single_payer_observed 2/5

Payer identities observed; a single payer accounts for effectively all observed volume.

Assessed window
30d
6 active of 25 observed
Inflow assessed
$1.66
74 transactions
Payer identities
available
0 evidence caveats
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-31.
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 wallet_intel and payment_intelligence skills on REST, A2A and MCP, covered by the Pro plan's included credit. API docs →
Agent cardhttps://api.postcodecontext.uk/.well-known/agent-card.json
Providerhttps://api.postcodecontext.uk
Docshttps://api.postcodecontext.uk
About this provider off-card enrichment
SSL certificate
Google Trust Services
expires 2027-01-21
Discovered via
agentic_market recrawl_paid cdp_discovery

Skills · 4 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Get Postcode Intelligence

Returns full socio-economic, housing, broadband, demographic, and educational context for any Great Britain unit postcode.

No taxonomy category yet
Compare Postcodes

Directly contrasts 2 to 5 Great Britain postcodes across affluence, safety, housing cost, broadband, and family suitability.

No taxonomy category yet
Enrich Postcodes Batch

Bulk demographic, economic, and spatial lookup for up to 50 Great Britain postcodes.

No taxonomy category yet
Get Outcode District Summary

High-level summary of an entire outward code district (e.g., SW1A, BB7, EH1, CF10).

No taxonomy category yet

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-10-31 21:01:49 200 ✓ 37ms
2026-10-24 20:15:17 404 — —

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Embed your Agenstry badge

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/api.postcodecontext.uk.svg)](https://agenstry.com/agents/api.postcodecontext.uk)
[![Verified Business](https://agenstry.com/badge/api.postcodecontext.uk/identity.svg)](https://agenstry.com/agents/api.postcodecontext.uk)
[![Uptime](https://agenstry.com/badge/api.postcodecontext.uk/uptime.svg)](https://agenstry.com/agents/api.postcodecontext.uk)
[![A2A version](https://agenstry.com/badge/api.postcodecontext.uk/protocol.svg)](https://agenstry.com/agents/api.postcodecontext.uk)

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
{
  "$schema": "https://a2a-protocol.org/schemas/v1/agent-card.json",
  "name": "PostcodeContext.UK",
  "description": "Comprehensive Great Britain Postcode & Outcode Intelligence API covering England, Scotland, and Wales. Provides ONS Census 2021 demographics, Indices of Deprivation deciles (English IoD 2025, Scottish SIMD 2020, Welsh WIMD 2025), Land Registry property metrics, Ofcom broadband speeds, and spatial proximity to schools and healthcare.",
  "version": "1.0.0",
  "provider": {
    "organization": "PostcodeContext.UK",
    "url": "https://api.postcodecontext.uk"
  },
  "documentation": {
    "home": "https://api.postcodecontext.uk",
    "llms_txt": "https://api.postcodecontext.uk/llms.txt",
    "openapi_json": "https://api.postcodecontext.uk/openapi.json",
    "data_dictionary": "https://api.postcodecontext.uk/data-dictionary",
    "attribution": "https://api.postcodecontext.uk/api/v1/attribution"
  },
  "supportedInterfaces": [
    {
      "url": "https://api.postcodecontext.uk/mcp",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "2024-11-05",
      "description": "Model Context Protocol (MCP) streamable HTTP interface"
    },
    {
      "url": "https://api.postcodecontext.uk/api/v1",
      "protocolBinding": "REST",
      "protocolVersion": "1.0",
      "description": "HTTP REST API with x402 payment settlement"
    }
  ],
  "capabilities": {
    "streaming": true,
    "pushNotifications": false
  },
  "securitySchemes": [
    {
      "type": "x402",
      "scheme": "exact",
      "network": "eip155:8453",
      "token": "USDC",
      "tokenContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "recipient": "0x8ab7568ac097523e81a94644235fcf19a2b85670",
      "pricing": {
        "single_postcode": "$0.005 USDC",
        "outcode_district": "$0.005 USDC",
        "compare_postcodes": "$0.010 USDC",
        "batch_enrichment": "$0.050 USDC"
      }
    }
  ],
  "skills": [
    {
      "id": "get_postcode_intelligence",
      "name": "Get Postcode Intelligence",
      "description": "Returns full socio-economic, housing, broadband, demographic, and educational context for any Great Britain unit postcode.",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/markdown"
      ]
    },
    {
      "id": "compare_gb_postcodes",
      "name": "Compare Postcodes",
      "description": "Directly contrasts 2 to 5 Great Britain postcodes across affluence, safety, housing cost, broadband, and family suitability.",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/markdown"
      ]
    },
    {
      "id": "enrich_postcodes_batch",
      "name": "Enrich Postcodes Batch",
      "description": "Bulk demographic, economic, and spatial lookup for up to 50 Great Britain postcodes.",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "get_outcode_district_summary",
      "name": "Get Outcode District Summary",
      "description": "High-level summary of an entire outward code district (e.g., SW1A, BB7, EH1, CF10).",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/markdown"
      ]
    }
  ]
}