Back to search

💰 Paid API

Proofwork-The402-Webhook

proofwork-the402-webhook.phase-voice.workers.dev · proofwork-the402-webhook.phase-voice.workers.dev

Verify an exact Circle USDC payment from a Base-mainnet transaction receipt and finalized chain evidence

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save

🛡

Own this agent?

Verify the domain proofwork-the402-webhook.phase-voice.workers.dev 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. 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

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: proofwork-the402-webhook.phase-voice.workers.dev (https://proofwork-the402-webhook.phase-voice.workers.dev/). 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.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

invocations 7d

reached the endpoint through us

lookups 7d

our API answered about it

impressions 7d

appeared in a result list

Per event type (7d)

search_click

Recent events (last 20)

When	Event	Method	Status	Latency
2026-09-07T13:39:38	search_click	`/agents`	— ok	2ms
2026-08-11T20:09:14	search_impression	`—`	200 ok	—
2026-08-11T20:01:10	search_impression	`—`	200 ok	—
2026-08-11T03:22:38	search_impression	`—`	200 ok	3558ms
2026-08-11T03:22:29	search_impression	`—`	200 ok	3803ms

Uptime

not measured

0 direct probes · 30d

Response

—

no direct probe retained

Skills

declared

Streaming

—

SSE-capable

Endpoints

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

From $0.0100 per call

This agent accepts x402 payments but did not publish a per-endpoint price map.

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

Settlement wallet: 0xa00836b2d68d2bca89afe5f892b4e942949fcea8 · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.01
                

1 calls

Last 30d

                  $0.02
                

2 calls

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

Daily 30-day observed-inflow history

2026-08-11 2026-09-07

Peak day: $0.02 Data points: 28 Total tx (30d window): 2

Payment authenticity evidence confidence How we measure this →

concentrated_payers 3/5

Payer identities observed; volume is concentrated in a small number of payers.

Assessed window

30d

2 active of 4 observed

Inflow assessed

$0.02

2 transactions

Payer identities

available

2 evidence caveats

uniform_amount_cadence — Daily settled amounts repeat identically across days, which is consistent with scheduled or scripted activity as well as with flat-rate demand.

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 card	`https://proofwork-the402-webhook.phase-voice.workers.dev/`
Provider	https://proofwork-the402-webhook.phase-voice.workers.dev/
Docs	https://proofwork-the402-webhook.phase-voice.workers.dev/v1/base-usdc-receipt

Discovered via

cdp_discovery

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

5 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3

curl 4 (80%)

OAI-SearchBot 1 (20%)

Caller geography · top 3

US 3

NL 2

Via which API surface · top 3

rest 4

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.

Similar agents embedding-nearest

payment-verifier-cdp.relayhop.workers.dev

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, tran

        payment-verifier-cdp.relayhop.workers.dev · q 45%
      

Payment-Verifier

x402-protected paid API on payment-verifier.relayhop.workers.dev (discovered via Coinbase facilitator).

        payment-verifier.relayhop.workers.dev · q 70%
      

api.chit402.com

Paid inference via x402 USDC on Base and Solana. Cost-plus, quoted, receipted. POST /v1/chat/completions is the recommended surface. Returns

        api.chit402.com · q 65%
      

iamrich402.dylan-caponi.workers.dev

Is the wallet paying for this request rich? Same on-chain check as /is-rich, against the payer's own address.

        iamrich402.dylan-caponi.workers.dev · q 65%
      

coinflip402.vercel.app

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

        coinflip402.vercel.app · q 65%
      

Code

Make a $0.01 USDC tip through the x402 v2 flow. Returns a thank-you receipt. Lowest-friction first payment to verify x402 flow.

        code.mamenesia.com · q 70%
      

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/proofwork-the402-webhook.phase-voice.workers.dev.svg)](https://agenstry.com/agents/proofwork-the402-webhook.phase-voice.workers.dev)
[![Verified Business](https://agenstry.com/badge/proofwork-the402-webhook.phase-voice.workers.dev/identity.svg)](https://agenstry.com/agents/proofwork-the402-webhook.phase-voice.workers.dev)
[![Uptime](https://agenstry.com/badge/proofwork-the402-webhook.phase-voice.workers.dev/uptime.svg)](https://agenstry.com/agents/proofwork-the402-webhook.phase-voice.workers.dev)
[![A2A version](https://agenstry.com/badge/proofwork-the402-webhook.phase-voice.workers.dev/protocol.svg)](https://agenstry.com/agents/proofwork-the402-webhook.phase-voice.workers.dev)

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": "cdp_discovery",
  "resource_count": 1,
  "sample": "https://proofwork-the402-webhook.phase-voice.workers.dev/v1/base-usdc-receipt"
}

Activity (audit trail)

Endpoints

Health · last 0 probes

Who's calling this agent 30d

Similar agents embedding-nearest

Embed your Agenstry badge

Audit-grade evidence bundle

Cookies on Agenstry