Forest Web
Compare two public OpenAPI or Swagger contracts and determine whether the API update contains directly observable breaking compatibility changes. Detects removed operations, newly required request inputs, narrowed inline enums, removed content types or successful responses and tightened authentication; unsupported compatibility questions remain unknown. No API operation is executed. Base mainnet USDC
Offering
- Provider
- http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Development
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/openapi/breaking-change- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:45.949Z
- Last seen
- Tags
- api, OpenAPI, swagger, api-contract, breaking-change
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.004 USDC
Atomic price: 4000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "4000",
"payTo": "0xb48D918151311F982d542eF5C84cc1cd54CFf7a9"
}
]Observed health
- Status
- Reachable
- Latest latency
- 257 ms
- Average latency
- 478 ms
- HTTP status
- 405
- Last checked
- Reachability
- 100% over 11 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"after_url": {
"description": "Public after url value used to scope this lookup.",
"maxLength": 2048,
"minLength": 1,
"pattern": "^https?://",
"type": "string"
},
"before_url": {
"description": "Public before url value used to scope this lookup.",
"maxLength": 2048,
"minLength": 1,
"pattern": "^https?://",
"type": "string"
}
},
"required": [
"before_url",
"after_url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"capability": {
"const": "openapi.breaking-change",
"description": "Public capability value used to scope this lookup."
},
"data": {
"additionalProperties": false,
"description": "Public data value used to scope this lookup.",
"properties": {
"after_fingerprint_scope": {
"description": "Public after fingerprint scope value used to scope this lookup.",
"enum": [
"machine_contract_structure",
"simple_yaml_operation_summary",
"unavailable"
]
},
"after_hash": {
"description": "Public before hash value used to scope this lookup.",
"pattern": "^[a-fA-F0-9]{64}$",
"type": [
"string",
"null"
]
},
"after_operation_count": {
"description": "Public after operation count value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"after_url": {
"description": "Public after url value used to scope this lookup.",
"type": "string"
},
"before_fingerprint_scope": {
"description": "Public before fingerprint scope value used to scope this lookup.",
"enum": [
"machine_contract_structure",
"simple_yaml_operation_summary",
"unavailable"
]
},
"before_hash": {
"description": "Public before hash value used to scope this lookup.",
"pattern": "^[a-fA-F0-9]{64}$",
"type": [
"string",
"null"
]
},
"before_operation_count": {
"description": "Public before operation count value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"before_url": {
"description": "Public before url value used to scope this lookup.",
"type": "string"
},
"breaking_changes": {
"description": "Public breaking changes value used to scope this lookup.",
"items": {
"type": "string"
},
"maxItems": 200,
"type": "array"
},
"comparison_complete": {
"description": "Public comparison complete value used to scope this lookup.",
"type": "boolean"
},
"comparison_truncated": {
"description": "Public comparison truncated value used to scope this lookup.",
"type": "boolean"
},
"local_ref_count": {
"description": "Public local ref count value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"non_breaking_changes": {
"description": "Public breaking changes value used to scope this lookup.",
"items": {
"type": "string"
},
"maxItems": 200,
"type": "array"
},
"provider_request_count": {
"const": 2,
"description": "Public provider request count value used to scope this lookup."
},
"remote_ref_count": {
"description": "Public remote ref count value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"scope": {
"const": "two_bounded_openapi_documents_no_operation_execution_no_ref_resolution",
"description": "Public scope value used to scope this lookup."
},
"unknown_changes": {
"description": "Public breaking changes value used to scope this lookup.",
"items": {
"type": "string"
},
"maxItems": 200,
"type": "array"
},
"verdict": {
"description": "Public verdict value used to scope this lookup.",
"enum": [
"unchanged",
"breaking",
"non_breaking",
"unknown"
]
}
},
"required": [
"verdict",
"before_url",
"after_url",
"before_hash",
"after_hash",
"before_operation_count",
"after_operation_count",
"before_fingerprint_scope",
"after_fingerprint_scope",
"breaking_changes",
"non_breaking_changes",
"unknown_changes",
"local_ref_count",
"remote_ref_count",
"comparison_complete",
"comparison_truncated",
"provider_request_count",
"scope"
],
"type": "object"
},
"meta": {
"additionalProperties": false,
"description": "Public meta value used to scope this lookup.",
"properties": {
"cache": {
"description": "Public cache value used to scope this lookup.",
"enum": [
"hit",
"miss",
"bypass"
]
},
"checked_at": {
"description": "Public checked at value used to scope this lookup.",
"type": "string"
},
"duration_ms": {
"description": "Public duration ms value used to scope this lookup.",
"minimum": 0,
"type": "integer"
},
"provider": {
"description": "Public provider value used to scope this lookup.",
"type": [
"string",
"null"
]
}
},
"required": [
"provider",
"checked_at",
"cache",
"duration_ms"
],
"type": "object"
},
"ok": {
"const": true,
"description": "Public ok value used to scope this lookup."
},
"version": {
"const": "1",
"description": "Package version whose public metadata should be checked."
}
},
"required": [
"ok",
"capability",
"version",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}