Agent Commerce Protocol (ACP) x402 endpoint by Virtuals Protocol on Base. GET /acp-budget serves ACP budget data behind an HTTP 402 paywall.
Pay from $0.001 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
ASSESSMENT
updated 2h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 856ms
- avg response
- 478ms
- total checks
- 47
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.001 (p13 in AI)
- price (min)
- $0.001
- category percentile (min)
- p13 in AI
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
traction $0.005 30d · 1 buyers
- volume 30d
- $0.005
- buyers 30d
- 1
- settlements 30d
- 5
- last settlement
- 2026-07-15
- top buyer share
- 100% of 30d volume
- trend 7d vs 30d
- 1.71x the 30d daily rate
- networks
- eip155:8453
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides budget management for ACP jobs through API endpoints
- category
- budget-api
- in
- query params
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /acp-budget | acp job budget ($0.001) | $0.001 | Base | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /acp-budget returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://acp-x402.virtuals.io/acp-budget'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "No X-PAYMENT header provided",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6a1FE26D54ab0d3E1e3168f2e0c0cDa5cC0A0A4A",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "http://acp-x402.virtuals.io/acp-budget",
"description": "acp job budget ($0.001)",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"discoverable": true,
"headerFields": {
"X-Budget": {
"type": "string",
"example": "$0.01",
"required": false,
"description": "Optional budget amount in USD (e.g., $0.01). If not provided, defaults to $0.001"
}
}
},
"output": null
},
"maxAmountRequired": "1000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1
}
] UPTIME
RECENT CHECKS
OVER TIME
All charts share the 24h window selected here. Every series is also served as JSON at /api/v1/services/acp-virtuals-protocol/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).
COMPLIANCE
11/11 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
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