OpenAPI Auth Diff
See how the declared authentication surface changed between two OpenAPI documents. Reports schemes added, removed or altered, scopes gained or lost, and the two cases a scheme comparison alone misses: an operation that now requires authentication where it required none, and an operation that no longer requires any. Reports what the documents say, not what the implementation enforces.
OtherLiveeip155:8453Exactvia cdp
OpenapiAuthenticationChange detectionApi contractDeveloper tooling
Settlements · 30d
218↓ 56%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$25.30
Verified settled volume
255 settlements proven x402 by their on-chain EIP-3009 marker.
$0.120
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-04 07:53Z
—
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": "120000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.zfinia.com/x402/v1/openapi-auth-surface-diff",
"tags": [
"openapi",
"authentication",
"change detection",
"api contract",
"developer tooling"
],
"mimeType": "application/json",
"description": "See how the declared authentication surface changed between two OpenAPI documents. Reports schemes added, removed or altered, scopes gained or lost, and the two cases a scheme comparison alone misses: an operation that now requires authentication where it required none, and an operation that no longer requires any. Reports what the documents say, not what the implementation enforces.",
"serviceName": "OpenAPI Auth Diff"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"after": {
"info": {
"title": "Orders API",
"version": "2.0.0"
},
"paths": {
"/orders": {
"get": {
"summary": "List orders",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Order"
}
}
}
},
"description": "A page of orders"
}
},
"parameters": [
{
"in": "query",
"name": "tenant",
"schema": {
"type": "string"
},
"required": true
}
],
"operationId": "listOrdersV2"
},
"post": {
"summary": "Create an order",
"responses": {
"201": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "Created"
}
},
"operationId": "createOrder",
"requestBody": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"required": true
}
},
"parameters": [
{
"in": "query",
"name": "page",
"schema": {
"type": "integer",
"minimum": 1
}
}
]
},
"/orders/{id}": {
"get": {
"summary": "Fetch one order",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "The order"
},
"404": {
"description": "Not found"
}
},
"deprecated": true,
"parameters": [
{
"in": "path",
"name": "id",
"schema": {
"type": "string"
}
}
],
"operationId": "getOrder"
}
}
},
"openapi": "3.1.0",
"security": [
{
"apiKey": []
}
],
"components": {
"schemas": {
"Order": {
"type": "object",
"required": [
"id",
"total",
"tenant_id"
],
"properties": {
"id": {
"type": "string"
},
"total": {
"type": "number"
},
"status": {
"enum": [
"open",
"shipped",
"disputed"
],
"type": "string"
},
"tenant_id": {
"type": "string"
}
}
}
},
"securitySchemes": {
"apiKey": {
"in": "query",
"name": "api_key",
"type": "apiKey"
}
}
}
},
"before": {
"info": {
"title": "Orders API",
"version": "1.4.0"
},
"paths": {
"/orders": {
"get": {
"summary": "List orders",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Order"
}
}
}
},
"description": "A page of orders"
},
"429": {
"description": "Rate limited"
}
},
"operationId": "listOrders"
},
"post": {
"summary": "Create an order",
"responses": {
"201": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "Created"
}
},
"operationId": "createOrder",
"requestBody": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
}
}
},
"parameters": [
{
"in": "query",
"name": "page",
"schema": {
"type": "integer",
"minimum": 1
}
}
]
},
"/orders/{id}": {
"get": {
"summary": "Fetch one order",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "The order"
},
"404": {
"description": "Not found"
}
},
"parameters": [
{
"in": "path",
"name": "id",
"schema": {
"type": "string"
}
}
],
"operationId": "getOrder"
}
},
"/legacy/export": {
"get": {
"summary": "Legacy export",
"responses": {
"200": {
"description": "A CSV export"
}
},
"operationId": "legacyExport"
}
}
},
"openapi": "3.1.0",
"security": [
{
"apiKey": []
}
],
"components": {
"schemas": {
"Order": {
"type": "object",
"required": [
"id",
"total"
],
"properties": {
"id": {
"type": "string"
},
"total": {
"type": "number"
},
"status": {
"enum": [
"open",
"shipped"
],
"type": "string"
},
"legacy_ref": {
"type": "string"
}
}
}
},
"securitySchemes": {
"apiKey": {
"in": "header",
"name": "X-Api-Key",
"type": "apiKey"
}
}
}
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"limits": {
"maxFindings": 500,
"maxOperations": 500,
"maxClientOperations": 200,
"maxRequestBodyBytes": 262144
},
"complete": true,
"findings": [
{
"code": "SCHEME_CHANGED",
"field": "location",
"detail": "Security scheme apiKey: location changed from header to query.",
"scheme": "apiKey"
},
{
"code": "SCHEME_CHANGED",
"field": "name",
"detail": "Security scheme apiKey: name changed from X-Api-Key to api_key.",
"scheme": "apiKey"
}
],
"unchanged": false,
"request_id": "example-request",
"service_id": "openapi_auth_surface_diff",
"assumptions": [
"An operation with an empty security array requires nothing, which is how a document opts one operation out of a global requirement.",
"An operation with no security of its own inherits the document-level requirement."
],
"limitations": [
"Declared authentication surface only. This reports what the documents say, not what the implementation enforces, and it is not a security assessment or a compliance statement.",
"unchanged is true only when both documents were read in full and no scheme, scope or operation requirement moved."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"not_examined": [],
"finding_count": 2,
"service_version": "1.0.0",
"findings_by_code": {
"SCHEME_CHANGED": 2
},
"after_scheme_count": 1,
"before_scheme_count": 1,
"newly_protected_operations": 0,
"newly_unprotected_operations": 0
}
}
},
"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": [
"before",
"after"
],
"properties": {
"after": {
"type": "object"
},
"before": {
"type": "object"
}
},
"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"
}
}
}
}
}
}
},
"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.
0.12USDC≈ $0.12 USD
on Base · exact scheme
Pay 0.12 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.
- Paid to
- 0x25e8…a9608
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 120000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "120000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"after": {
"info": {
"title": "Orders API",
"version": "2.0.0"
},
"paths": {
"/orders": {
"get": {
"summary": "List orders",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Order"
}
}
}
},
"description": "A page of orders"
}
},
"parameters": [
{
"in": "query",
"name": "tenant",
"schema": {
"type": "string"
},
"required": true
}
],
"operationId": "listOrdersV2"
},
"post": {
"summary": "Create an order",
"responses": {
"201": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "Created"
}
},
"operationId": "createOrder",
"requestBody": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"required": true
}
},
"parameters": [
{
"in": "query",
"name": "page",
"schema": {
"type": "integer",
"minimum": 1
}
}
]
},
"/orders/{id}": {
"get": {
"summary": "Fetch one order",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "The order"
},
"404": {
"description": "Not found"
}
},
"deprecated": true,
"parameters": [
{
"in": "path",
"name": "id",
"schema": {
"type": "string"
}
}
],
"operationId": "getOrder"
}
}
},
"openapi": "3.1.0",
"security": [
{
"apiKey": []
}
],
"components": {
"schemas": {
"Order": {
"type": "object",
"required": [
"id",
"total",
"tenant_id"
],
"properties": {
"id": {
"type": "string"
},
"total": {
"type": "number"
},
"status": {
"enum": [
"open",
"shipped",
"disputed"
],
"type": "string"
},
"tenant_id": {
"type": "string"
}
}
}
},
"securitySchemes": {
"apiKey": {
"in": "query",
"name": "api_key",
"type": "apiKey"
}
}
}
},
"before": {
"info": {
"title": "Orders API",
"version": "1.4.0"
},
"paths": {
"/orders": {
"get": {
"summary": "List orders",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Order"
}
}
}
},
"description": "A page of orders"
},
"429": {
"description": "Rate limited"
}
},
"operationId": "listOrders"
},
"post": {
"summary": "Create an order",
"responses": {
"201": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "Created"
}
},
"operationId": "createOrder",
"requestBody": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
}
}
},
"parameters": [
{
"in": "query",
"name": "page",
"schema": {
"type": "integer",
"minimum": 1
}
}
]
},
"/orders/{id}": {
"get": {
"summary": "Fetch one order",
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Order"
}
}
},
"description": "The order"
},
"404": {
"description": "Not found"
}
},
"parameters": [
{
"in": "path",
"name": "id",
"schema": {
"type": "string"
}
}
],
"operationId": "getOrder"
}
},
"/legacy/export": {
"get": {
"summary": "Legacy export",
"responses": {
"200": {
"description": "A CSV export"
}
},
"operationId": "legacyExport"
}
}
},
"openapi": "3.1.0",
"security": [
{
"apiKey": []
}
],
"components": {
"schemas": {
"Order": {
"type": "object",
"required": [
"id",
"total"
],
"properties": {
"id": {
"type": "string"
},
"total": {
"type": "number"
},
"status": {
"enum": [
"open",
"shipped"
],
"type": "string"
},
"legacy_ref": {
"type": "string"
}
}
}
},
"securitySchemes": {
"apiKey": {
"in": "header",
"name": "X-Api-Key",
"type": "apiKey"
}
}
}
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"limits": {
"maxFindings": 500,
"maxOperations": 500,
"maxClientOperations": 200,
"maxRequestBodyBytes": 262144
},
"complete": true,
"findings": [
{
"code": "SCHEME_CHANGED",
"field": "location",
"detail": "Security scheme apiKey: location changed from header to query.",
"scheme": "apiKey"
},
{
"code": "SCHEME_CHANGED",
"field": "name",
"detail": "Security scheme apiKey: name changed from X-Api-Key to api_key.",
"scheme": "apiKey"
}
],
"unchanged": false,
"request_id": "example-request",
"service_id": "openapi_auth_surface_diff",
"assumptions": [
"An operation with an empty security array requires nothing, which is how a document opts one operation out of a global requirement.",
"An operation with no security of its own inherits the document-level requirement."
],
"limitations": [
"Declared authentication surface only. This reports what the documents say, not what the implementation enforces, and it is not a security assessment or a compliance statement.",
"unchanged is true only when both documents were read in full and no scheme, scope or operation requirement moved."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"not_examined": [],
"finding_count": 2,
"service_version": "1.0.0",
"findings_by_code": {
"SCHEME_CHANGED": 2
},
"after_scheme_count": 1,
"before_scheme_count": 1,
"newly_protected_operations": 0,
"newly_unprotected_operations": 0
}
}
},
"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": [
"before",
"after"
],
"properties": {
"after": {
"type": "object"
},
"before": {
"type": "object"
}
},
"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"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-04 07:53Z
- Last indexed by Roundhouse
- 2026-10-05 00:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-04 10:45Z
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service OpenAPI Auth Diff 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=OpenAPI%20Auth%20Diff' 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/openapi-auth-surface-diff, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.