x402.agentindex.world

https://x402.agentindex.world/x402-echo

Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET /x402-echo/sample.

61
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

98.4% avg
0% 50% 100% Sep 25Sep 28Oct 1Oct 4

Response time

p50 346ms · p95 1935ms
0ms 250ms 500ms Sep 25Sep 28Oct 1Oct 4
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
9/25/2026, 12:00:00 AM 100% 2 262ms
9/26/2026, 12:00:00 AM 100% 15 359ms
9/27/2026, 12:00:00 AM 100% 13 346ms
9/28/2026, 12:00:00 AM 100% 13 363ms
9/29/2026, 12:00:00 AM 100% 13 421ms
9/30/2026, 12:00:00 AM 100% 12 430ms
10/1/2026, 12:00:00 AM 92% 13 136ms
10/2/2026, 12:00:00 AM 92% 12 134ms
10/3/2026, 12:00:00 AM 100% 12 136ms
10/4/2026, 12:00:00 AM 100% 7 135ms
61
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
98

How often it was reachable when we probed it (weight 35%).

Latency
99

How quickly it answers when it is up — fast scores high (weight 20%).

Security
98

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
10

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
self-hosted
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
NameCheap, Inc.
Domain registered
2026-04-02
Hosting network
—
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

159
payments (30d)
0.16
USD volume (30d)
2
paying wallets (30d)

Payments per day

last payment 10/3/2026
0 25 50 Sep 25Sep 28Oct 1Oct 3
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/25/2026 8 0.01 1
9/27/2026 25 0.03 1
9/28/2026 10 0.01 2
9/30/2026 25 0.03 1
10/1/2026 20 0.02 1
10/2/2026 23 0.02 1
10/3/2026 48 0.05 1

This payout wallet is shared: figures cover all 7 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Response schema 
{
  "properties": {
    "network": {
      "type": "string"
    },
    "ok": {
      "type": "boolean"
    },
    "payer": {
      "type": [
        "string",
        "null"
      ]
    },
    "price_atomic_usdc": {
      "type": "string"
    },
    "price_usdc": {
      "type": "number"
    },
    "purpose": {
      "type": "string"
    },
    "request": {
      "type": "object"
    },
    "x402_receipt": {
      "type": "object"
    }
  },
  "required": [
    "ok",
    "purpose",
    "network",
    "price_usdc",
    "price_atomic_usdc",
    "request"
  ],
  "type": "object"
}