Decide whether two GraphQL schemas are compatible, with every finding attributed
Decide whether two GraphQL schemas are compatible, with every finding attributed to the audience it affects. Clients break on a removed field, a removed enum value that is returned, a new required argument, a non-null output turned nullable and a new required input field. Servers break on a new field to resolve, a new interface obligation and an output turned non-null. An enum removal is attributed by where the enum actually flows, computed from the roots.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.zfinia.com/x402/v1/graphql-schema-compatibility
| Category | Everything else |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.22 | 2476 ms |
Example input (from the provider)
{
"body": {
"after": "type Query {\n order(id: ID!, tenant: ID!): Order\n orders(first: Int = 50): [Order!]!\n}\n\ntype Mutation {\n createOrder(input: OrderInput!): Order!\n}\n\nenum Status { OPEN ARCHIVED }\n\ninput OrderInput {\n status: Status\n note: String\n tenant: ID!\n}\n\ntype Order {\n id: ID!\n status: Status!\n totalCents: Int\n channel: String!\n}\n",
"before": "type Query {\n order(id: ID!): Order\n orders(first: Int = 20): [Order!]!\n}\n\ntype Mutation {\n createOrder(input: OrderInput!): Order!\n}\n\nenum Status { OPEN CLOSED }\n\ninput OrderInput {\n status: Status\n note: String\n}\n\ntype Order {\n id: ID!\n status: Status!\n totalCents: Int!\n note: String\n}\n"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"after": {
"maxLength": 262144,
"type": "string"
},
"before": {
"maxLength": 262144,
"type": "string"
}
},
"required": [
"before",
"after"
],
"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": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}