api.zfinia.com
A calmer way to understand your money, feel confident about what comes next and make better financial decisions.
MediaLiveeip155:8453Exactvia cdp
Calls · 30d
6→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$0.35
Verified settled volume
36 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0030
Listed price
As published in the catalog. Always read the live 402 before paying.
6
Calls · 30d
Upstream's own call count for this endpoint, not ours.
5
Unique payers · 30d
Last called 2026-09-19 15:58Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x25e8245f07d5e4873987293dad666afbe56a9608The 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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.zfinia.com/x402/v1/data-compatibility-checker",
"tags": [
"schema compatibility",
"data contracts",
"breaking changes",
"CI validation",
"field mapping"
],
"mimeType": "application/json",
"description": "Compare caller-supplied source and target flat field schemas before ingestion, migration, CI deployment or machine-to-machine handoff. Returns a deterministic JSON mismatch report with type incompatibilities, missing required fields, nullability warnings and remediation codes. Does not fetch data or validate nested schemas, data values or runtime API behaviour.",
"serviceName": "Data Compatibility Checker"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"source_fields": [
{
"name": "order_id",
"type": "string",
"nullable": false,
"required": true
},
{
"name": "customer_id",
"type": "string",
"nullable": true,
"required": true
},
{
"name": "amount_cents",
"type": "string",
"nullable": false,
"required": true
},
{
"name": "created_at",
"type": "string",
"nullable": false,
"required": true
}
],
"target_fields": [
{
"name": "order_id",
"type": "string",
"nullable": false,
"required": true
},
{
"name": "customer_id",
"type": "string",
"nullable": false,
"required": true
},
{
"name": "amount_cents",
"type": "integer",
"nullable": false,
"required": true
},
{
"name": "currency",
"type": "string",
"nullable": false,
"required": true
},
{
"name": "created_at",
"type": "string",
"nullable": false,
"required": true
}
],
"comparison_mode": "backward_compatible",
"canonicalization": "exact",
"contract_version": "1"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"issues": [
{
"code": "TYPE_MISMATCH",
"field": "amount_cents",
"severity": "error",
"source_type": "string",
"target_type": "integer"
},
{
"code": "MISSING_REQUIRED_FIELD",
"field": "currency",
"severity": "error"
},
{
"code": "NULLABILITY_NARROWING",
"field": "customer_id",
"severity": "warning"
}
],
"compatible": false,
"request_id": "example-request",
"service_id": "data_compatibility_checker",
"assumptions": [
"Source fields represent data offered by the caller; target fields represent the receiving contract."
],
"issue_count": 3,
"limitations": [
"Structural field compatibility only; values, nested object shapes, semantic meaning, API behavior, and agent-output quality are not inspected."
],
"remediations": [
{
"code": "TYPE_MISMATCH",
"field": "amount_cents",
"action": "CHANGE_SOURCE_FIELD_TYPE"
},
{
"code": "MISSING_REQUIRED_FIELD",
"field": "currency",
"action": "ADD_REQUIRED_SOURCE_FIELD"
},
{
"code": "NULLABILITY_NARROWING",
"field": "customer_id",
"action": "DISALLOW_NULL_SOURCE_VALUES"
}
],
"comparison_mode": "backward_compatible",
"service_version": "1.0.0",
"canonicalization": {
"field_names": "exact",
"changed_names": []
},
"contract_version": "1",
"checked_source_fields": 4,
"checked_target_fields": 5
}
}
},
"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",
"required": [
"source_fields",
"target_fields"
],
"properties": {
"source_fields": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type",
"required",
"nullable"
],
"properties": {
"name": {
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
},
"type": {
"enum": [
"string",
"number",
"integer",
"boolean",
"object",
"array"
],
"type": "string"
},
"nullable": {
"type": "boolean"
},
"required": {
"type": "boolean"
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1
},
"target_fields": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type",
"required",
"nullable"
],
"properties": {
"name": {
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
},
"type": {
"enum": [
"string",
"number",
"integer",
"boolean",
"object",
"array"
],
"type": "string"
},
"nullable": {
"type": "boolean"
},
"required": {
"type": "boolean"
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1
},
"comparison_mode": {
"enum": [
"backward_compatible",
"exact"
],
"type": "string"
},
"canonicalization": {
"enum": [
"exact",
"ascii_case_insensitive"
],
"type": "string"
},
"contract_version": {
"enum": [
"1"
],
"type": "string"
}
},
"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",
"contract_version",
"comparison_mode",
"canonicalization",
"compatible",
"issue_count",
"issues",
"remediations",
"checked_source_fields",
"checked_target_fields",
"assumptions",
"limitations"
],
"properties": {
"issues": {
"type": "array"
},
"compatible": {
"type": "boolean"
},
"request_id": {
"type": "string",
"description": "Delivery request identifier; also returned in x-foundry-request-id."
},
"service_id": {
"type": "string",
"description": "Canonical service identifier."
},
"assumptions": {
"type": "array"
},
"issue_count": {
"type": "integer"
},
"limitations": {
"type": "array"
},
"remediations": {
"type": "array"
},
"comparison_mode": {
"type": "string"
},
"service_version": {
"type": "string",
"description": "Version of the invoked service."
},
"canonicalization": {
"type": "object"
},
"contract_version": {
"type": "string"
},
"checked_source_fields": {
"type": "integer"
},
"checked_target_fields": {
"type": "integer"
}
},
"additionalProperties": false
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.003USDC≈ $0.003 USD
on Base · exact scheme
Pay 0.003 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.
- Paid to
- 0x25e8…a9608
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 3000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"source_fields": [
{
"name": "id",
"type": "string",
"nullable": false,
"required": true
}
],
"target_fields": [
{
"name": "id",
"type": "string",
"nullable": false,
"required": true
}
],
"comparison_mode": "backward_compatible",
"canonicalization": "exact",
"contract_version": "1"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"issues": [],
"compatible": true,
"request_id": "example-request",
"service_id": "data_compatibility_checker",
"assumptions": [
"Source fields represent data offered by the caller; target fields represent the receiving contract."
],
"issue_count": 0,
"limitations": [
"Structural field compatibility only; values, nested object shapes, semantic meaning, API behavior, and agent-output quality are not inspected."
],
"remediations": [],
"comparison_mode": "backward_compatible",
"service_version": "1.0.0",
"canonicalization": {
"field_names": "exact",
"changed_names": []
},
"contract_version": "1",
"checked_source_fields": 1,
"checked_target_fields": 1
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"source_fields",
"target_fields"
],
"properties": {
"source_fields": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type",
"required",
"nullable"
],
"properties": {
"name": {
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
},
"type": {
"enum": [
"string",
"number",
"integer",
"boolean",
"object",
"array"
],
"type": "string"
},
"nullable": {
"type": "boolean"
},
"required": {
"type": "boolean"
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1
},
"target_fields": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"type",
"required",
"nullable"
],
"properties": {
"name": {
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
},
"type": {
"enum": [
"string",
"number",
"integer",
"boolean",
"object",
"array"
],
"type": "string"
},
"nullable": {
"type": "boolean"
},
"required": {
"type": "boolean"
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1
},
"comparison_mode": {
"enum": [
"backward_compatible",
"exact"
],
"type": "string"
},
"canonicalization": {
"enum": [
"exact",
"ascii_case_insensitive"
],
"type": "string"
},
"contract_version": {
"enum": [
"1"
],
"type": "string"
}
},
"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",
"contract_version",
"comparison_mode",
"canonicalization",
"compatible",
"issue_count",
"issues",
"remediations",
"checked_source_fields",
"checked_target_fields",
"assumptions",
"limitations"
],
"properties": {
"issues": {
"type": "array"
},
"compatible": {
"type": "boolean"
},
"request_id": {
"type": "string",
"description": "Delivery request identifier; also returned in x-foundry-request-id."
},
"service_id": {
"type": "string",
"description": "Canonical service identifier."
},
"assumptions": {
"type": "array"
},
"issue_count": {
"type": "integer"
},
"limitations": {
"type": "array"
},
"remediations": {
"type": "array"
},
"comparison_mode": {
"type": "string"
},
"service_version": {
"type": "string",
"description": "Version of the invoked service."
},
"canonicalization": {
"type": "object"
},
"contract_version": {
"type": "string"
},
"checked_source_fields": {
"type": "integer"
},
"checked_target_fields": {
"type": "integer"
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-19 15:58Z
- Last indexed by Roundhouse
- 2026-09-24 00:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 03:45Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
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. 15 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide 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/x402/v1/data-compatibility-checker, 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.