# Agent Result Completeness Check

> Agent Result Completeness Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Validates that all required output paths in an agent result object are non-null, returning acceptance/rejection status with mismatch reasons and normalized evidence.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/agent-result-completeness-check
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-result-completeness-check-4e1dc829
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yDkikwFV63ExqZSEPmFAD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-result-completeness-check-4e1dc829 -d '<json body>'
```

Example prompt: Before I pay for this agent delivery, check whether the result object has non-null values at all the required paths — specifically 'output.summary', 'output.confidence', and 'output.sources' — and tell me if I should accept or reject it.

## When to prefer this

Use this endpoint as a preflight check immediately before accepting or paying for any agent-assembled result, especially in x402 payment flows. Prefer this over manual field inspection when you have a bounded set of required output paths and need a structured rejection reason log. Ideal when operating within agentic pipelines where you need an auditable accept/reject decision with normalized evidence rather than a simple boolean.

## Known failure modes

- Malformed result object causes validation error — result must be a valid JSON object with at most 128 properties
- Invalid required_paths entries (e.g. paths exceeding 8192 characters) cause rejection
- Exceeding 256 required_paths items returns an error
- Empty result object with non-empty required_paths will return rejection with all paths listed as mismatches
- Deeply nested path expressions may not resolve if path syntax is not supported

## How this service works

Agent Result Completeness Check: Agent Result Completeness Check checks required output paths for non-null values from bounded caller-supplied values without an external provider. Call Agent Result Completeness Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for Agent Result Completeness Check as vers…

## Output

Returns contract-specific completeness checks, normalized evidence of present/absent values, specific mismatch reasons for any missing or null required paths, and an explicit acceptance or rejection status indicating whether the agent result satisfies the specified output contract.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "Result supplied to Agent Result Completeness Check; used only for this bounded calculation and processed in memory without retention.",
   "maxProperties": 128,
   "additionalProperties": true
  },
  "required_paths": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 8192
   },
   "maxItems": 256,
   "description": "Required Paths supplied to Agent Result Completeness Check; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "complete": true,
   "missing_paths": []
  },
  "schema": "delx/util-agent-result-completeness-check/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "b2e1059ad447c4ce1b601722a097a8eb4ed493bbe167dcd67f55cc67be09d243",
   "external_calls": 0
  },
  "operation": "delivery_contract:agent_result_completeness_check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-result-completeness-check-4e1dc829/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)