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📊 Intel view 📋 Audit JSON 🔄 Changelog
60
💰 Paid API verification

api.pennyforge.org

api.pennyforge.org · api.pennyforge.org

Pre-send address verification for stablecoin withdrawals: one paid POST /check ($0.01) parses address + token contract, probes live RPCs and exchanges, and returns a warn-level verdict before you send USDC. POST /deep ($0.05) adds extended checks.

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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
Trust score
60/100
grade C · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
$0.47
47 tx · on-chain
Invocations · 7d
0
no calls observed
Listing drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 60/100
Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (24 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown ▾ click to collapse breakdown ▴
n/a Agent card n/a
Not applicable: a paid API listed by agentic.market. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
partial Live endpoint 15/25
Our probe received an HTTP 402 payment challenge from the host: live, but paid.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our 40 probes in 30 days looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: api.pennyforge.org (https://api.pennyforge.org). 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
n/a Security declaration n/a
Not applicable: no A2A agent card served.

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.

Uptime
not graded
catalogue listing · no agent card to probe
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Verified live · 402 challenge Dispute or improve this rating
From $0.0100 per call
Endpoint Price Currency
https://api.pennyforge.org/deep 0.05 USDC
https://api.pennyforge.org/check 0.01 USDC
https://api.pennyforge.org/diligence/live 0.01 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x9504a5939ab5be2b2b1f8bea7d7ebeccd96c485d on Base · basescan ↗
Listed by facilitators Coinbase CDP · 2
Observed on-chain inflow verified on-chain
Last 7d
$0.03
3 transfers · synced 2026-10-07
Last 30d
$0.47
47 transfers · synced 2026-10-07
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
$0.47 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 13 calls in 30 days to this wallet across 4 listed resources; our ledger observed 47 transfers (0 facilitator-settled) over 29 of 30 scanned days. Different counters; neither is assumed correct.
Daily 30-day observed-inflow history ↓ −$0.04 since 2026-09-27
2026-09-27 2026-10-08
Last 30 days Peak 30-day total: $0.58 Data points: 12 Total tx (30d window): 47
Payment authenticity evidence confidence How we measure this →
recurring_independent_payers 4/5

Several distinct payers observed, including repeat payers, with no single payer dominating.

Assessed window
30d
17 active of 30 observed
Inflow assessed
$0.47
47 transactions
Payer identities
available
3 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, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-07.
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.pennyforge.org/landscape
Providerhttps://api.pennyforge.org
Docshttps://api.pennyforge.org
Discovered via
x402_list manifests agentic_market recrawl_hot

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-10-08 13:41:51 404 — —
2026-10-08 01:33:30 404 — —
2026-10-07 06:49:59 404 — —
2026-10-06 18:20:00 404 — —
2026-10-05 14:36:17 404 — —
2026-10-05 00:38:26 404 — —
2026-10-04 17:58:26 404 — —
2026-10-04 11:17:28 404 — —
2026-10-04 04:37:24 404 — —
2026-10-03 22:10:08 404 — —

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

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": "api-pennyforge-org",
    "name": "api.pennyforge.org",
    "description": "",
    "domain": "api.pennyforge.org",
    "provider": "api.pennyforge.org",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://api.pennyforge.org/check",
        "description": "SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}",
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "address",
            "type": "string",
            "description": "",
            "example": "0x9504A5939AB5be2B2B1F8beA7D7ebeCcd96c485D",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "chain",
            "type": "string",
            "description": "",
            "example": "base",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "sendcheck",
        "tags": [
          "evm",
          "crypto",
          "security",
          "usdc",
          "address-verification"
        ],
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "4"
        }
      },
      {
        "url": "https://api.pennyforge.org/deep",
        "description": "SendCheck deep scan: the same verification across all 5 chains (Base, Ethereum, Arbitrum, Optimism, Polygon) incl. wrong-network detection. POST {address, chain}",
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "address",
            "type": "string",
            "description": "",
            "example": "0x9504A5939AB5be2B2B1F8beA7D7ebeCcd96c485D",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "chain",
            "type": "string",
            "description": "",
            "example": "base",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "sendcheck",
        "tags": [
          "evm",
          "crypto",
          "security",
          "usdc",
          "address-verification"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.01",
      "maxAmount": "0.05",
      "avgCostPerTransaction": "0.03",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "sendcheck",
    "tags": [
      "evm",
      "crypto",
      "security",
      "usdc",
      "address-verification"
    ],
    "iconUrl": ""
  }
}