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📊 Intel view 📋 Audit JSON 🔄 Changelog
22
💰 Paid API ai

signalharness.ai

signalharness.ai · signalharness.ai

330 production x402 API services for AI agents covering web/data processing, validation, AI utilities, blockchain/crypto utilities and related machine-callable capabilities.

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Verify the domain signalharness.ai 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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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
22/100
grade F · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
$0.07
5 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

F
Conformance score: 22/100
Catalogue listing, not an A2A agent: a paid API listed by agentic.market. Scored on the 3 criteria that apply (9 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.
fail Live endpoint 0/25
No response from the host observed: listed by agentic.market only, not confirmed by our own probe.
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 probes 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: signalharness.ai (https://signalharness.ai). 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 Facilitator feed Dispute or improve this rating
From $0.0050 per call
Endpoint Price Currency
https://signalharness.ai/api/agent/services/agent_research_trace_report/invoke 0.03 USDC
https://signalharness.ai/api/agent/services/robots_policy_parse/invoke 0.005 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x02dc8f414eebbadd9a9f383e87757beab4bb1ab0 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 2
Observed on-chain inflow verified on-chain
Last 7d
$0.00
0 transfers · synced 2026-10-07
Last 30d
$0.07
5 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
$0.07 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 3 calls in 30 days to this wallet across 2 listed resources; our ledger observed 5 transfers (0 facilitator-settled) over 21 of 30 scanned days. Different counters; neither is assumed correct.
Daily 30-day observed-inflow history
2026-09-24 2026-10-16
Last 30 days Peak 30-day total: $0.07 Data points: 23 Total tx (30d window): 5
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
2 active of 22 observed
Inflow assessed
$0.07
5 transactions
Payer identities
available
1 evidence caveat
short_observation_window — Fewer than three active days observed — too little history to characterise a pattern.
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 2026-10-15.
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://signalharness.ai/.well-known/agent-card.json
Providerhttps://signalharness.ai
Docshttps://signalharness.ai
Discovered via
agentic_market smithery recrawl_hot x402_list

Health · last 22 probes

When HTTP Live JSON-RPC Latency
2026-10-12 06:03:19 404 — —
2026-10-09 18:51:08 404 — —
2026-10-09 10:57:12 404 — —
2026-10-08 23:01:41 404 — —
2026-10-08 13:47:00 404 — —
2026-10-08 01:31:10 404 — —
2026-10-07 07:04:50 404 — —
2026-10-06 18:39:34 404 — —
2026-10-05 14:39:00 404 — —
2026-10-05 00:38:31 404 — —

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

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": "signalharness-ai",
    "name": "signalharness.ai",
    "description": "",
    "domain": "signalharness.ai",
    "provider": "signalharness.ai",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://signalharness.ai/api/agent/services/agent_research_trace_report/invoke",
        "description": "Agent Research Trace Report performs a bounded deterministic agent research trace report operation over caller-supplied AI and search evidence.",
        "pricing": {
          "amount": "0.03",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "request_json",
            "type": "string",
            "description": "",
            "example": "{\"example\":\"schema-valid caller-supplied data\"}",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "SignalHarness x402 Services",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://signalharness.ai/api/agent/services/robots_policy_parse/invoke",
        "description": "Parses robots.txt groups and applies deterministic longest-match allow and disallow semantics.",
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "text",
            "type": "string",
            "description": "",
            "example": "User-agent: *\nAllow: /",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "SignalHarness x402 Services",
        "tags": [],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.005",
      "maxAmount": "0.03",
      "avgCostPerTransaction": "0.0175",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "SignalHarness x402 Services",
    "tags": [],
    "iconUrl": ""
  }
}