Grouped record aggregates
WHEN TO USE: Summarize up to 1,000 records with count/sum/avg/min/max, grouped by up to 5 JSON Pointer fields. Up to 20 uniquely named metrics. Group order follows first occurrence; missing keys are distinguished from null through a parallel missing array. Numeric metrics ignore missing/null, reject other non-numbers and overflow; empty sum/count are 0 and empty avg/min/max are null. No groupBy returns one global group, even for empty input. Maximum 100,000 characters and depth 32.
structured · Operation ID: records-aggregate
Choose this operation when
- Calculate count/sum/avg/min/max over supplied bounded records.
Outside this profile
- Database queries, streaming analytics, or arbitrary formulas.
Exact release references
Static JSON contract · Markdown reference · Fixed example response
Complete input schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"records": {
"maxItems": 1000,
"type": "array",
"items": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
}
},
"groupBy": {
"default": [],
"maxItems": 5,
"type": "array",
"items": {
"type": "string",
"maxLength": 2048,
"description": "RFC 6901 JSON string pointer; empty string selects the root. URI fragments are not accepted."
}
},
"metrics": {
"minItems": 1,
"maxItems": 20,
"type": "array",
"items": {
"oneOf": [
{
"type": "object",
"properties": {
"as": {
"type": "string",
"minLength": 1,
"maxLength": 256
},
"op": {
"type": "string",
"const": "count"
}
},
"required": [
"as",
"op"
],
"additionalProperties": false
},
{
"type": "object",
"properties": {
"as": {
"type": "string",
"minLength": 1,
"maxLength": 256
},
"op": {
"type": "string",
"enum": [
"sum",
"avg",
"min",
"max"
]
},
"path": {
"type": "string",
"maxLength": 2048,
"description": "RFC 6901 JSON string pointer; empty string selects the root. URI fragments are not accepted."
}
},
"required": [
"as",
"op",
"path"
],
"additionalProperties": false
}
]
}
}
},
"required": [
"records",
"metrics"
],
"additionalProperties": false,
"$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": "records-aggregate",
"type": "string"
},
"version": {
"const": "0.29.0",
"type": "string"
},
"result": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"groups": {
"maxItems": 1000,
"type": "array",
"items": {
"type": "object",
"properties": {
"key": {
"maxItems": 5,
"type": "array",
"items": {
"$ref": "#/properties/result/$defs/__schema0"
}
},
"missing": {
"maxItems": 5,
"type": "array",
"items": {
"type": "boolean"
}
},
"count": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"metrics": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": [
"number",
"null"
]
}
}
},
"required": [
"key",
"missing",
"count",
"metrics"
],
"additionalProperties": false
}
},
"groupCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"recordCount": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"groups",
"groupCount",
"recordCount"
],
"additionalProperties": false,
"$defs": {
"__schema0": {
"anyOf": [
{
"type": "string"
},
{
"type": "number"
},
{
"type": "boolean"
},
{
"type": "null"
},
{
"type": "array",
"items": {
"$ref": "#/properties/result/$defs/__schema0"
}
},
{
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"$ref": "#/properties/result/$defs/__schema0"
}
}
]
}
}
},
"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
{
"records": [
{
"region": "west",
"revenue": 50
},
{
"region": "west",
"revenue": 70
},
{
"region": "east",
"revenue": 40
}
],
"groupBy": [
"/region"
],
"metrics": [
{
"as": "orders",
"op": "count"
},
{
"as": "revenue",
"op": "sum",
"path": "/revenue"
}
]
}
Example response
{
"operation": "records-aggregate",
"version": "0.29.0",
"result": {
"groups": [
{
"key": [
"west"
],
"missing": [
false
],
"count": 2,
"metrics": {
"orders": 2,
"revenue": 120
}
},
{
"key": [
"east"
],
"missing": [
false
],
"count": 1,
"metrics": {
"orders": 1,
"revenue": 40
}
}
],
"groupCount": 2,
"recordCount": 3
},
"provenance": {
"inputSha256": "1924642abbb9dfc99b456bc9f2aa018f71096fa07cd1d5289e23237e3ca70b97",
"outputSha256": "092e95776a8a0b1c38162cc0100533a2e195b8d90f706500a5865e45ed0a24eb",
"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": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32
}
}
Complete schemas, descriptions and cross-field validation may impose additional limits.
Proposed price and protocol definitions
{
"unit": "one successful operation call",
"proposedNominalUsd": "0.005",
"sixDecimalTokenBaseUnits": "5000",
"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/records-aggregate",
"mpp": "/v1/mpp/records-aggregate"
}
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.