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💰 Paid API live JSON-RPC A2A 0.3.0 v1.0.0 x402 micropay

FuelScout

fuelscout.scalpstream.com · FuelScout

Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.

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Verify the domain fuelscout.scalpstream.com 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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Trust score

67/100

grade C · 9 criteria

Uptime

70.7%

41 direct probes · 30d

~369 ms response

Observed inflow · 30d

Dispute or improve this rating

C

Conformance score: 67/100

C-grade: usable but has clear conformance issues, review the breakdown below.

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).

pass Live JSON-RPC 25/25

Endpoint responds to a negotiated A2A SendMessage probe (answers in ~369 ms).

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 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).

partial Uptime track record 11/15

29/41 probes succeeded (71% uptime).

            How to earn +4 points
          

Stabilise uptime

We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.

Docs →

partial Skill declaration 6/10

Declares 1 skill, usable but thin.

            How to earn +4 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: FuelScout (https://fuelscout.scalpstream.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 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

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.

Card history

10 snapshots drifted 9× Every change to agent-card.json

Captured	Hash
2026-08-19 07:11:49 current	`ecc472438476…`	view →
2026-08-19 00:43:25	`ecc472438476…`	view →
2026-08-18 16:35:48	`ecc472438476…`	view →
2026-08-18 05:26:37	`ecc472438476…`	view →
2026-08-17 22:22:16	`ecc472438476…`	view →
2026-08-17 16:13:43	`ecc472438476…`	view →
2026-08-17 04:14:50	`ecc472438476…`	view →
2026-08-16 16:47:09	`ecc472438476…`	view →
2026-08-16 05:26:05	`ecc472438476…`	view →
2026-08-15 23:11:02	`ecc472438476…`	view →

Showing latest 10. Older snapshots available via GET /api/agents/fuelscout.scalpstream.com/snapshots.

Uptime

70.7%

41 direct probes · 30d

Response

149ms

last direct probe

Skills

declared

Streaming

—

SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

Endpoints

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

From $0.0100 per call

Endpoint	Price	Currency
`https://fuelscout.scalpstream.com/fuel`	0.01	USDC

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

Settlement wallet: 0xd0f5d2e48e67a265174593ace2cd540337c1564a · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.23
                

23 calls

Last 30d

                  $0.23
                

23 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%)

2026-08-10 2026-08-19

Peak day: $0.23 Data points: 10 Total tx (30d window): 23

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

$0.23

23 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 2026-08-19.

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://fuelscout.scalpstream.com/.well-known/agent-card.json`
Provider	https://fuelscout.scalpstream.com
Docs	https://fuelscout.scalpstream.com/.well-known/x402

Discovered via

registry a2a_registry_org recrawl_warm agentic_market

Skills · 1 declared · mapped to canonical taxonomy

cheapest fuel near a location

Given a country + coordinates (ES/FR/IT) or a US region, returns the cheapest stations (or the regional average) for a fuel grade, optionally ranked by all-in c…

canonical Electrician Dispatch and Quotes match 83%

fuelgaspetroldieselgasoline

Health · last 30 probes

When	HTTP	Live JSON-RPC	Latency
2026-08-19 07:11:49	200	✓	149ms
2026-08-19 00:43:25	200	✓	143ms
2026-08-18 16:35:48	200	✓	144ms
2026-08-18 05:26:37	200	✓	145ms
2026-08-17 22:22:16	200	✓	144ms
2026-08-17 16:13:43	200	✓	151ms
2026-08-17 04:14:50	200	✓	149ms
2026-08-16 16:47:09	200	✓	144ms
2026-08-16 05:26:05	200	✓	145ms
2026-08-15 23:11:02	200	✓	149ms

Cheaper or better alternatives per-skill

      
      ↓ 1 skill cheaper elsewhere
      
      peak save 90.0%

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.

Electrician Dispatch and Quotes home

40 other agents serve this

↓ Cheaper alternative save 90.0%

Agentdatum

            $0.001
            $0.010

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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/fuelscout.scalpstream.com.svg)](https://agenstry.com/agents/fuelscout.scalpstream.com)
[![Verified Business](https://agenstry.com/badge/fuelscout.scalpstream.com/identity.svg)](https://agenstry.com/agents/fuelscout.scalpstream.com)
[![Uptime](https://agenstry.com/badge/fuelscout.scalpstream.com/uptime.svg)](https://agenstry.com/agents/fuelscout.scalpstream.com)
[![A2A version](https://agenstry.com/badge/fuelscout.scalpstream.com/protocol.svg)](https://agenstry.com/agents/fuelscout.scalpstream.com)

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

{
  "capabilities": {
    "pushNotifications": false,
    "streaming": false
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "text/plain"
  ],
  "description": "Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed \u2014 confirm at the pump.",
  "documentationUrl": "https://fuelscout.scalpstream.com/.well-known/x402",
  "name": "FuelScout",
  "preferredTransport": "JSONRPC",
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "FuelScout",
    "url": "https://fuelscout.scalpstream.com"
  },
  "skills": [
    {
      "description": "Given a country + coordinates (ES/FR/IT) or a US region, returns the cheapest stations (or the regional average) for a fuel grade, optionally ranked by all-in cost including the round-trip detour.",
      "examples": [
        "cheapest diesel near Madrid",
        "gas prices in California",
        "how much to query fuel prices"
      ],
      "id": "cheapest-fuel",
      "name": "cheapest fuel near a location",
      "tags": [
        "fuel",
        "gas",
        "petrol",
        "diesel",
        "gasoline",
        "lpg",
        "prices",
        "cheapest",
        "gas station",
        "fuel prices",
        "x402",
        "spain",
        "france",
        "italy",
        "usa",
        "europe"
      ]
    }
  ],
  "url": "https://fuelscout.scalpstream.com/a2a",
  "version": "1.0.0"
}

Activity (audit trail)

Card history

Try it

Endpoints

Skills · 1 declared · mapped to canonical taxonomy

Health · last 30 probes

Cheaper or better alternatives per-skill

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Embed your Agenstry badge

Audit-grade evidence bundle

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