Roundhouse

api.zfinia.com

Independent data, news and infrastructure intelligence tracking how autonomous agents discover, buy, sell and pay for useful things.

SearchLiveeip155:8453Exactvia cdp
https://api.zfinia.com/v1/intelligence/changes-since
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far.
$0.35
Verified settled volume
36 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-14 19:51Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x25e8245f07d5e4873987293dad666afbe56a9608

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.

Paid to
0x25e8…a9608
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "cursor": "2026-09-01T00:00:00.000Z",
          "maxItems": 3,
          "include_high_resolution": true
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "count": 1,
          "items": [
            {
              "eventId": "evt_x402_launch_20250506",
              "summary": "x402 uses HTTP 402 so agents can pay for APIs without accounts.",
              "headline": "Coinbase launches x402 HTTP-native payments",
              "freshness": "archive",
              "evidenceTier": "TIER_A"
            }
          ],
          "since": "2026-09-01T00:00:00.000Z",
          "schema": "zfinia-newswire-1",
          "product": "machine_economy_changes_since",
          "truncated": false,
          "nextCursor": "2026-09-07T00:00:00.000Z",
          "request_id": "example-request",
          "service_id": "machine_economy_changes_since",
          "generatedAt": "2026-09-07T00:00:00.000Z",
          "priceAtomic": "10000",
          "usageRights": "Caller may use returned JSON for their own systems.",
          "schemaVersion": "zfinia-newswire-1",
          "highResolution": true,
          "marketMovements": {
            "resourcesDelta": 0
          },
          "service_version": "1"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "anyOf": [
                {
                  "required": [
                    "cursor"
                  ]
                },
                {
                  "required": [
                    "since"
                  ]
                }
              ],
              "properties": {
                "since": {
                  "type": "string",
                  "maxLength": 2048,
                  "minLength": 1,
                  "description": "Alias of cursor. Use the previous nextCursor so only later material changes are returned."
                },
                "cursor": {
                  "type": "string",
                  "maxLength": 2048,
                  "minLength": 1,
                  "description": "Previous nextCursor (opaque or ISO-8601). Required for the paid delta unless since is set. Pass this back on the next poll."
                },
                "maxItems": {
                  "type": "integer",
                  "maximum": 50,
                  "minimum": 1
                },
                "include_high_resolution": {
                  "type": "boolean",
                  "description": "When true, paid items include full evidence fields already present on the public newswire item."
                }
              },
              "description": "Paid delta for a caller that already has a zFinia cursor. Supply cursor or since (the previous nextCursor).",
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "request_id",
                "service_id",
                "service_version",
                "schema",
                "generatedAt",
                "since",
                "nextCursor",
                "count",
                "items",
                "truncated",
                "usageRights"
              ],
              "properties": {
                "count": {
                  "type": "integer"
                },
                "items": {
                  "type": "array"
                },
                "since": {
                  "type": "string"
                },
                "schema": {
                  "type": "string"
                },
                "product": {
                  "type": "string"
                },
                "truncated": {
                  "type": "boolean"
                },
                "nextCursor": {
                  "type": "string"
                },
                "request_id": {
                  "type": "string",
                  "description": "Delivery request identifier; also returned in x-foundry-request-id."
                },
                "service_id": {
                  "type": "string",
                  "description": "Canonical service identifier."
                },
                "generatedAt": {
                  "type": "string"
                },
                "priceAtomic": {
                  "type": "string"
                },
                "usageRights": {
                  "type": "string"
                },
                "schemaVersion": {
                  "type": "string"
                },
                "highResolution": {
                  "type": "boolean"
                },
                "marketMovements": {
                  "type": "object"
                },
                "service_version": {
                  "type": "string",
                  "description": "Version of the invoked service."
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-14 19:52Z
Last indexed by Roundhouse
2026-09-24 00:50Z
Last enriched (probe, favicon, geo)
2026-09-11 08:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 200
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service api.zfinia.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.zfinia.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.zfinia.com/v1/intelligence/changes-since, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.