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LineageLint x402 – OpenAPI Pact Generator
x402
LineageLint x402 – OpenAPI Pact Generator is a paid API for AI agents from 47-85-47-24.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Generates a Pact contract file (v3 specification) from an OpenAPI spec using a built-in orders-api scenario
Price / call$0.001
Success—
StatusUnknown
How this service works
An autonomous paid API accepting USDC on Base mainnet.
Output
Returns a JSON object containing: the full Pact contract object (consumer, provider, interactions), a serialized pact_json string, the output filename (e.g. orders-consumer-orders-provider.json), the format tag (pact-specification-v3), counts of operations and interactions, the generator ID and version, and an array of warnings about generated interactions that may need review before verification.
Example use cases
Auto-generate contract tests for microservices
“Create a Pact v3 contract from our orders API spec so our consumer and provider teams can verify compatibility without manual test writing. I need the full contract object with all interactions and any warnings about what might need adjustment.”
Convert OpenAPI to contract specification
“Transform my OpenAPI definition into a Pact v3 contract file that I can use for consumer-driven contract testing. Give me the serialized JSON and the output filename so I can version it in our repo.”
Establish API contract baseline quickly
“I need to generate a Pact specification v3 file for our orders service right now without setting up local tooling. Just give me the contract artifacts, interaction counts, and any warnings so we can start testing against it immediately.”
Technical details
Endpoint
GEThttps://47-85-47-24.sslip.io/v1/openapi-pactWhen to prefer
Use this endpoint when you need a quick, paid, zero-setup Pact v3 contract generated from the built-in orders API scenario without running a local PactForge instance. Prefer it over manual Pact authoring or local tooling when you want a reproducible, versioned contract artifact via a simple HTTP GET call with micropayment access.
Side effects
- Invalid or unsupported scenario value returns an error — only 'orders-api-pact' is accepted
- Non-GET/HEAD/DELETE HTTP method not accepted by this endpoint
- Payment failure (insufficient USDC balance or x402 handshake error) blocks access
- Malformed input object missing required 'type' or 'method' fields returns a validation error
- Generated interactions may have zero write_interactions if no mutating operations are found in the spec
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"pact": {
"consumer": {
"name": "Orders Consumer"
},
"metadata": {
"pactSpecification": {
"version": "3.0.0"
}
},
"provider": {
"name": "Orders Provider"
},
"interactions": []
},
"format": "pact-specification-v3",
"filename": "orders-consumer-orders-provider.json",
"warnings": [
"Generated interactions use exact sample values and should be reviewed before verification."
],
"pact_json": "{\n \"consumer\": {\"name\": \"Orders Consumer\"}\n}\n",
"generator_id": "pactforge-27618b0597e2a0a3",
"operations_count": 1,
"generator_version": "pactforge-openapi-pact-v3/1.0",
"interactions_count": 1,
"write_interactions": 0
}
}Tags
x402
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