JSON-RPC Exchange Check
Inspect supplied parsed JSON-RPC 2.0 requests/responses for envelope errors, notification replies, typed-ID collisions, missing responses and unmatched results. Bounded safe-integer-ID correlation profile; no transport, method execution, schema validation, or full interoperability certification.
workflow-assurance · Operation ID: jsonrpc-exchange-check
Choose this operation when
- Correlate JSON-RPC batch replies with agent tool requests
- Detect missing tool responses, duplicate request IDs and replies to notifications
Outside this profile
- MCP lifecycle/authentication verification or tool invocation
- Raw JSON syntax validation or fractional/unsafe numeric ID correlation
Exact release references
Static JSON contract · Markdown reference · Fixed example response
Complete input schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"request": {
"$ref": "#/$defs/__schema0"
},
"response": {
"$ref": "#/$defs/__schema0"
}
},
"required": [
"request"
],
"additionalProperties": false,
"$defs": {
"__schema0": {
"anyOf": [
{
"type": "string"
},
{
"type": "number"
},
{
"type": "boolean"
},
{
"type": "null"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/__schema0"
}
},
{
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
}
]
}
}
}
Complete output-envelope schema
{
"type": "object",
"required": [
"operation",
"version",
"result",
"provenance"
],
"properties": {
"operation": {
"const": "jsonrpc-exchange-check",
"type": "string"
},
"version": {
"const": "0.29.0",
"type": "string"
},
"result": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"profile": {
"type": "string",
"const": "jsonrpc-2-exchange-subset-v1"
},
"passesChecks": {
"type": "boolean"
},
"complete": {
"type": "boolean",
"const": false
},
"requestCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"callCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"notificationCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"matchedCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"matches": {
"type": "array",
"items": {
"type": "object",
"properties": {
"requestIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"responseIndex": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"id": {
"type": [
"string",
"number",
"null"
]
},
"outcome": {
"type": "string",
"enum": [
"result",
"error"
]
}
},
"required": [
"requestIndex",
"responseIndex",
"id",
"outcome"
],
"additionalProperties": false
}
},
"findings": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"severity": {
"type": "string",
"enum": [
"error",
"warning"
]
},
"path": {
"type": "string"
},
"message": {
"type": "string"
}
},
"required": [
"code",
"severity",
"path",
"message"
],
"additionalProperties": false
}
},
"findingCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"errorCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"truncated": {
"type": "boolean"
}
},
"required": [
"profile",
"passesChecks",
"complete",
"requestCount",
"callCount",
"notificationCount",
"matchedCount",
"matches",
"findings",
"findingCount",
"errorCount",
"truncated"
],
"additionalProperties": false
},
"provenance": {
"type": "object",
"required": [
"inputSha256",
"outputSha256",
"deterministic",
"externalRequests"
],
"properties": {
"inputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"outputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"deterministic": {
"const": true
},
"externalRequests": {
"const": 0
}
}
}
},
"additionalProperties": false
}
Fixed example
One accepted fixed example, not a custom-input trial. No operation runs when this static page is requested.
Example input
{
"request": [
{
"jsonrpc": "2.0",
"method": "tools/list",
"id": "list-1"
},
{
"jsonrpc": "2.0",
"method": "notifications/initialized"
}
],
"response": [
{
"jsonrpc": "2.0",
"id": "list-1",
"result": {
"tools": []
}
}
]
}
Example response
{
"operation": "jsonrpc-exchange-check",
"version": "0.29.0",
"result": {
"profile": "jsonrpc-2-exchange-subset-v1",
"passesChecks": true,
"complete": false,
"requestCount": 2,
"callCount": 1,
"notificationCount": 1,
"matchedCount": 1,
"matches": [
{
"requestIndex": 0,
"responseIndex": 0,
"id": "list-1",
"outcome": "result"
}
],
"findings": [],
"findingCount": 0,
"errorCount": 0,
"truncated": false
},
"provenance": {
"inputSha256": "742afe870cf4c120f98c5b0fff5f0ed903299e18a9f053017e72ed4bfe73ac7d",
"outputSha256": "fc52f2b84c59159cb31402bfee7967089b41d95a0cbd5be8dd3a4feb7f7ff15e",
"deterministic": true,
"externalRequests": 0
}
}
Bounds and precision
JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.
{
"global": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32,
"jsonNodes": 20000,
"requestsPerMinute": 60,
"paidAttemptsPerMinute": 20,
"idempotencyHours": 24
},
"operation": {
"inputBytes": 100000,
"outputBytes": 400000,
"jsonNodes": 8000,
"depth": 20,
"findings": 200,
"quoteSearchCharacters": 4000000,
"quoteOccurrenceEvaluations": 200000,
"requestEnvelopes": 200,
"responseEnvelopes": 200
}
}
Complete schemas, descriptions and cross-field validation may impose additional limits.
Proposed price and protocol definitions
{
"unit": "one successful operation call",
"proposedNominalUsd": "0.01",
"sixDecimalTokenBaseUnits": "10000",
"subscription": false,
"includesPayerWalletOrNetworkFees": false,
"liveQuoteVerified": false,
"condition": "Actual SDK challenge is authoritative only within the caller's explicit authorization; configured six-decimal token peg is an operator assertion, not a conversion guarantee."
}
Protocol definitions: x402, mpp. MPP uses Tempo charge. Paid MCP execution is unsupported. All runtime readiness is not evaluated in this build.
API path templates, not endpoints on this documentation host
{
"x402": "/v1/x402/jsonrpc-exchange-check",
"mpp": "/v1/mpp/jsonrpc-exchange-check"
}
Required headers
{
"Content-Type": "application/json",
"Idempotency-Key": "random 16–128 character operation identifier"
}
Actual SDK challenge amount, asset, network, recipient and wallet costs must pass independent authorization. Preserve identical key, body, protocol and credential on retries; on PAYMENT_UNCERTAIN stop and reconcile.
Execution profile and provider conditions
{
"deterministic": true,
"externalRequests": 0,
"maxExternalRequests": 0,
"resultSnapshotPersisted": false,
"fixedExampleIsIllustrativeSnapshot": false,
"requiresPayment": true,
"supportsMcpExecution": false
}
Deterministic supplied-input operation with no external requests or stored request/result bodies. Payment infrastructure retains payment metadata and hashes.
Failure handling
- HTTP 400: Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch Correct the request before payment
- HTTP 402: Payment challenge or rejected payment Use official protocol SDK; inspect payment outcome before another payment
- HTTP 409: Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay
- HTTP 413: Input or generated output too large Reduce input; no payment attempted for validation failure
- HTTP 415: Unsupported media type or compression Send uncompressed application/json
- HTTP 422: Schema or service-specific semantic validation failure Correct input using returned error code; no payment attempted
- HTTP 429: Request/payment-attempt rate exceeded Wait for rate limit window; preserve existing payment identity
- HTTP 503: Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation
Declared requirements
Before any paid call, refresh the live operation contract and POST the complete bounded budgeted plan to the separate API's /preflight. Unknown requirements block selection; compatible preflight is not permission to spend.