SCHEMA COMPATIBILITY · CONTRACT DIFF · SCHEMA DRIFT

Detect breaking JSON-contract drift before an automation fails.

Deterministic schema compatibility checks for machine workflows. Set the maximum allowed breaking changes and pay only on verified success.

Call with x402Read Outcome docs
Outcome typeschema_compatible
x402 price0.010 USDC
NetworkBase
Failed verificationno settlement

Use this when

Problem

Your agent has schema drift, contract changes or breaking JSON changes and needs a deterministic result rather than another probabilistic answer.

Verification

HumanMirror executes the matching deterministic tool and independently verifies the declared outcome before requesting x402 settlement.

Integration

No account is required for x402. POST JSON to the paid Outcome endpoint, receive HTTP 402 payment terms, pay, then retry the same request.

Ready-to-send request

POST https://humanmirror.fr/api/x402/schema-compatibility/
Content-Type: application/json

{"outcome_type":"schema_compatible","input":{"before":{"id":1,"name":"A"},"after":{"id":1}},"criteria":{"max_breaking_changes":0}}

Without PAYMENT-SIGNATURE the endpoint returns the x402 V2 payment requirements. Network: eip155:8453. Asset: USDC.

Other machine entry points

Outcome MCP: https://humanmirror.fr/api/outcome/mcp/
x402 MCP catalog: https://humanmirror.fr/api/x402/mcp/
x402 manifest: https://humanmirror.fr/.well-known/x402.json
A2A agent card: https://humanmirror.fr/.well-known/agent-card.json
LLM index: https://humanmirror.fr/llms.txt