Skip to content
Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
80
💰 Paid API A2A 0.3.0 v1.0.0 x402 micropay

CollectablesPulse

collectablespulse.vercel.app · The Aslan Group LLC

Collectibles market intelligence API. 8 endpoints covering current market value by grade/condition, grading service guides (PSA/BGS/CGC/PCGS/NGC), authentication for fakes, investment buy/hold/sell signals, head-to-head comparisons, where to sell for maximum value, storage and preservation guides with Amazon product recommendations, and insurance guidance. Covers sports cards, TCG/Pokémon, coins, comics, watches, sneakers, vinyl records, video games, vintage toys, wine and spirits, art, and signed memorabilia. Live Discogs pricing for vinyl. Pay-per-query via x402 on Base.

🛡
Own this agent?
Verify the domain collectablespulse.vercel.app 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.
Verify ownership
🔔 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
40/100
grade D · 9 criteria
Uptime
accumulating
4/5 probes
~92 ms response
Revenue · 30d
$0.00
wallet active · no inflow
Usage · 7d
0
no recent activity
Card drift · 7d
changed
2 snapshots tracked
Owner
unverified
claim this listing →
D
Conformance score: 40/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 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 4 probes so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 11 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: The Aslan Group LLC (https://theaslangroupllc.com). 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 5/5
declares 1 modern capability flag(s) (x402); seen in upstream source within 1d
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.

Card history

2 snapshots drifted 1× Every change to agent-card.json
Captured Hash
2026-07-12 09:42:18 current 805ddc88816e… view →
2026-07-08 07:56:21 805ddc88816e… view →
Uptime
100.0%
4 probes
Response
170ms
last probe
Skills
11
declared
Streaming
SSE-capable

Skills · 11 declared · mapped to canonical taxonomy

Collectibles Valuation

collectibles valuation — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 86%
collectibles-valuationx402pay-per-call
Grading Guide

grading guide — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 86%
grading-guidex402pay-per-call
Psa Bgs Cgc Pcgs Grading

psa bgs cgc pcgs grading — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 83%
psa-bgs-cgc-pcgs-gradingx402pay-per-call
Authentication

authentication — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 88%
authenticationx402pay-per-call
Fake Detection

fake detection — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 88%
fake-detectionx402pay-per-call
Investment Signal

investment signal — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical x402 Crypto Micropayment match 86%
investment-signalx402pay-per-call
Buy Hold Sell

buy hold sell — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical x402 Crypto Micropayment match 86%
buy-hold-sellx402pay-per-call
Collectibles Comparison

collectibles comparison — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 87%
collectibles-comparisonx402pay-per-call
Selling Platform Guide

selling platform guide — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical X402 Usdc Payments match 86%
selling-platform-guidex402pay-per-call
Storage Preservation

storage preservation — pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json

canonical x402 Crypto Micropayment match 86%
storage-preservationx402pay-per-call
CollectablesPulse full catalog

All endpoints with parameters, prices and examples: https://collectablespulse.theaslangroupllc.com/openapi.json and https://collectablespulse.theaslangroupllc.c…

canonical UCP Catalog Exposure match 81%
catalogopenapix402

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-07-12 09:41:20 200 170ms
2026-07-08 07:56:21 200 185ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

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.

Similar agents embedding-nearest

collectablespulse.theaslangroupllc.com
Collectible value & price check: trading card value, graded card (PSA/BGS/CGC) price, coin value, comic & vinyl record price. Returns curren
collectablespulse.theaslangroupllc.com · q 85%
FanPulse
Super-fan intelligence API for iconic franchises and artists. 9 endpoints: lore Q&A, character profiles, trivia generation, Easter egg analy
The Aslan Group LLC · q 80%
GamePulse
AI-synthesized gaming, collectables, and esports intelligence API. Covers game deals across Steam/Epic/GOG/Humble, buy-or-wait verdicts, com
The Aslan Group LLC · q 80%
ESGPulse
AI-powered ESG and sustainability intelligence API. Covers CSRD compliance roadmaps, EU Taxonomy alignment checks, supply chain due diligenc
The Aslan Group LLC · q 80%
The Undesirables TCG Oracle
AI-powered TCG card grading, conformal risk forecasting, and market intelligence. 370K+ products across 25 games. 28 API endpoints. Pay-per-
oracle.the-undesirables.com · q 71%
TablePulse
Board-game and tabletop intelligence API. Synthesizes Claude's own board-game knowledge with live Tavily web grounding, the free BoardGamePr
The Aslan Group LLC · q 80%

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.

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

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
{
  "protocolVersion": "0.3.0",
  "name": "CollectablesPulse",
  "description": "Collectibles market intelligence API. 8 endpoints covering current market value by grade/condition, grading service guides (PSA/BGS/CGC/PCGS/NGC), authentication for fakes, investment buy/hold/sell signals, head-to-head comparisons, where to sell for maximum value, storage and preservation guides with Amazon product recommendations, and insurance guidance. Covers sports cards, TCG/Pok\u00e9mon, coins, comics, watches, sneakers, vinyl records, video games, vintage toys, wine and spirits, art, and signed memorabilia. Live Discogs pricing for vinyl. Pay-per-query via x402 on Base.",
  "url": "https://collectablespulse.theaslangroupllc.com",
  "preferredTransport": "HTTP+JSON",
  "version": "1.0.0",
  "provider": {
    "organization": "The Aslan Group LLC",
    "url": "https://theaslangroupllc.com"
  },
  "documentationUrl": "https://collectablespulse.theaslangroupllc.com/llms.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "collectibles-valuation",
      "name": "Collectibles Valuation",
      "description": "collectibles valuation \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "collectibles-valuation",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "grading-guide",
      "name": "Grading Guide",
      "description": "grading guide \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "grading-guide",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "psa-bgs-cgc-pcgs-grading",
      "name": "Psa Bgs Cgc Pcgs Grading",
      "description": "psa bgs cgc pcgs grading \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "psa-bgs-cgc-pcgs-grading",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "authentication",
      "name": "Authentication",
      "description": "authentication \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "authentication",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "fake-detection",
      "name": "Fake Detection",
      "description": "fake detection \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "fake-detection",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "investment-signal",
      "name": "Investment Signal",
      "description": "investment signal \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "investment-signal",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "buy-hold-sell",
      "name": "Buy Hold Sell",
      "description": "buy hold sell \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "buy-hold-sell",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "collectibles-comparison",
      "name": "Collectibles Comparison",
      "description": "collectibles comparison \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "collectibles-comparison",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "selling-platform-guide",
      "name": "Selling Platform Guide",
      "description": "selling platform guide \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "selling-platform-guide",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "storage-preservation",
      "name": "Storage Preservation",
      "description": "storage preservation \u2014 pay-per-call via x402 (USDC, Base). Parameters and pricing: https://collectablespulse.theaslangroupllc.com/openapi.json",
      "tags": [
        "storage-preservation",
        "x402",
        "pay-per-call"
      ]
    },
    {
      "id": "catalog",
      "name": "CollectablesPulse full catalog",
      "description": "All endpoints with parameters, prices and examples: https://collectablespulse.theaslangroupllc.com/openapi.json and https://collectablespulse.theaslangroupllc.com/llms.txt",
      "tags": [
        "catalog",
        "openapi",
        "x402"
      ]
    }
  ]
}