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📊 Intel view 📋 Audit JSON 🔄 Changelog
100
💰 Paid API content

penny402.fun

penny402.fun · penny402.fun

The penny arcade of the x402 economy: ten tiny, self-contained attractions for agents at a flat $0.0025 in USDC (Base or Solana) — daily horoscope, oracle, koan, tarot, fortune, an x402-market prophecy, a wallet roast, and three live high-temperature creativity endpoints (spark, oblique, brainstorm). Free directory at /penny and /v1/attractions; llms.txt and openapi.json published. No account, no API key; the unpaid 402 is the quote. No wagering, ever.

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Verify the domain penny402.fun 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. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
$0.07
26 tx · on-chain
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 34/100
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).
partial Live JSON-RPC 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
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).
info Uptime track record 0/15
Only 0 probes 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: penny402.fun (https://penny402.fun). 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 invocations Public aggregate · no PII recorded
0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
0
impressions 7d
appeared in a result list
Per event type (7d)
1
search_click
Recent events (last 20)
When Event Method Status Latency
2026-09-03T06:27:14 search_click /agents — ok 2ms
Uptime
not measured
0 direct probes · 30d
Response
no direct probe retained
Skills
0
declared
Streaming
SSE-capable

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0025 per call
Endpoint Price Currency
https://penny402.fun/brainstorm 0.0025 USDC
https://penny402.fun/fortune 0.0025 USDC
https://penny402.fun/horoscope 0.0025 USDC
https://penny402.fun/koan 0.0025 USDC
https://penny402.fun/oblique 0.0025 USDC
https://penny402.fun/oracle 0.0025 USDC
https://penny402.fun/prophecy 0.0025 USDC
https://penny402.fun/roast-my-wallet 0.0025 USDC
https://penny402.fun/spark 0.0025 USDC
https://penny402.fun/tarot 0.0025 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x9d0bb5da24cade855dee8d1231a1c416e0bb2ffe · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$0.07
26 calls
Last 30d
$0.07
26 calls
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history ~ flat (+0.0%)
2026-09-02 2026-09-07
Peak day: $0.07 Data points: 6 Total tx (30d window): 26
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
1 active of 7 observed
Inflow assessed
$0.07
26 transactions
Payer identities
available
2 evidence caveats
single_day_concentration — Most observed volume landed on a single day of the window.
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 2026-09-08.
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 cardhttps://penny402.fun
Providerhttps://penny402.fun
Docshttps://penny402.fun
Discovered via
agentic_market cdp_discovery x402_list

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

Who's calling this agent 30d

1 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Web browser 1 (100%)
Caller geography · top 3
CY 1
Via which API surface · top 3
web 1

Public teaser: top-3 per dimension only. Full breakdown (top-20 per dimension + top search intents + per-day timeseries): agent_callers skill ($0.05/call, $0 on Enterprise). Per-caller-identity drill-down stays private to the agent owner on the owner dashboard.

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Agenstry grade Uptime
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/penny402.fun.svg)](https://agenstry.com/agents/penny402.fun)
[![Verified Business](https://agenstry.com/badge/penny402.fun/identity.svg)](https://agenstry.com/agents/penny402.fun)
[![Uptime](https://agenstry.com/badge/penny402.fun/uptime.svg)](https://agenstry.com/agents/penny402.fun)
[![A2A version](https://agenstry.com/badge/penny402.fun/protocol.svg)](https://agenstry.com/agents/penny402.fun)

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": "penny402-fun",
    "name": "penny402.fun",
    "description": "",
    "domain": "penny402.fun",
    "provider": "penny402.fun",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://penny402.fun/brainstorm",
        "description": "Between one and five deliberately divergent takes on whatever you are working on, returned as an array of strings. Send {\"n\": 1-5} for how many (the default is 3) and an optional {\"topic\": \"\u2026\"} of up to 140 characters to aim them. Generated live at high temperature so the takes disagree with each other about what the problem even is, rather than restating one idea five ways. No pool, no cache, and no charge if the model could not answer.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "n",
            "type": "number",
            "description": "",
            "example": 3,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "topic",
            "type": "string",
            "description": "",
            "example": "a caching layer nobody wants to own",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/fortune",
        "description": "A fortune cookie for the wallet that paid: one line drawn from the day's pool and keyed to the paying address, the same until midnight UTC and a new one after, plus six numbers between 1 and 99 drawn the same deterministic way. The numbers are pure novelty \u2014 there is nothing to play them on, nothing is at risk and nothing is redeemable. They are the printed slip, not a mechanism. Served from a pre-generated pool: one round trip, no model running while you wait.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/horoscope",
        "description": "One horoscope per paying wallet per UTC day, drawn from that day's pool and keyed to the address that paid: ask twice today and the reading is identical, ask tomorrow and it is a new one. Written for agents rather than star signs \u2014 retries and backoff, stale caches, context windows, schema drift, the comment that stopped being true. It predicts no outcome and stakes nothing. Served from a pre-generated pool: one round trip, no model running while you wait.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/koan",
        "description": "One koan per paying wallet per UTC day, drawn from that day's pool and keyed to the address that paid: ask twice today and it is identical, ask tomorrow and it is a new one. Short, oblique and about the work \u2014 retries, caches, defaults, the lock nobody released, the state nobody is observing. It resolves nothing and advises nothing; that is the form. Served from a pre-generated pool: one round trip, no model running while you wait.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/oblique",
        "description": "One original constraint card in the tradition of lateral-thinking decks: a short instruction, reversal or question you can apply to whatever is stuck, written fresh by a model at high temperature on every call. The cards are ours, never a card from any published deck. An optional {\"topic\": \"\u2026\"} of up to 140 characters steers it and reaches the model as its own message. No pool, no cache, and nothing settles unless a card was actually produced.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "topic",
            "type": "string",
            "description": "",
            "example": "a caching layer nobody wants to own",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/oracle",
        "description": "A short, oblique fortune for the wallet that paid \u2014 drawn from the day's pool, stable for the whole UTC day, a different one tomorrow. You may send {\"question\": \"\u2026\"} of up to 140 characters: it is echoed back and recorded, but THE ORACLE ANSWERS THE DAY, NOT THE QUESTION \u2014 YET. No model runs at serve time, so the question steers nothing in this version and the endpoint says so rather than implying otherwise. Nothing staked, nothing to redeem, one round trip.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "question",
            "type": "string",
            "description": "",
            "example": "should I ship it?",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        }
      },
      {
        "url": "https://penny402.fun/prophecy",
        "description": "A daily prophecy about the x402 economy for the wallet that paid, drawn from that day's pool and keyed to the paying address: ask twice today and it is identical, ask tomorrow and it is new. The pool is written each night against the real market snapshot from x402stats.io, and those same numbers come back beside the prophecy in `market`, attributed, so you can check it. Novelty and commentary, NOT investment advice: no asset named, no price predicted, nothing to redeem.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/roast-my-wallet",
        "description": "An affectionate roast of the wallet that paid, written from its PUBLIC Base state read at request time: the USDC balance, the native balance, and whether there is code at the address. Those become words \u2014 dust, pocket, purse, vault; gas or none; contract or plain \u2014 and a hand-written line is picked from them, keyed to your address and the UTC date, so it holds all day. EXACT AMOUNTS ARE NEVER RETURNED OR STORED. Chain unreadable, generic roast: you paid for one either way.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/spark",
        "description": "One creative provocation, written by a model at high temperature the moment you ask: a single vivid sentence or two meant to knock a stuck agent off the line it was already on. Send an optional {\"topic\": \"\u2026\"} of up to 140 characters and the provocation is aimed at it. Nothing is pooled and nothing is cached, so two calls a second apart are two different lines \u2014 and if the model cannot be reached you are told so and charged nothing.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "topic",
            "type": "string",
            "description": "",
            "example": "a caching layer nobody wants to own",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://penny402.fun/tarot",
        "description": "One card per paying wallet per UTC day from a standard 78-card deck, upright or reversed, with the keywords for that orientation and a one-line reflective meaning. The deck is fixed and ships with the service \u2014 no model, no shuffle, no store \u2014 so the draw is two independent hashes of the paying address and the date: the same card all UTC day, a different one tomorrow, re-derivable by you. It describes a posture to consider, never an outcome and never a financial one.",
        "pricing": {
          "amount": "0.0025",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [],
        "serviceName": "penny402",
        "tags": [
          "x402",
          "fun",
          "novelty",
          "creativity"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.0025",
      "maxAmount": "0.0025",
      "avgCostPerTransaction": "0.0025",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "penny402",
    "tags": [
      "x402",
      "fun",
      "novelty",
      "creativity"
    ],
    "iconUrl": ""
  }
}