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Delx Commerce Dependency Order API
x402
Delx Commerce Dependency Order API is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Performs topological sorting on a directed graph of workflow nodes, returning execution order and cycle detection results.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with an ordered array of node identifiers in safe topological execution order, a boolean 'cyclic' flag indicating whether a cycle was detected, a list of unresolved nodes, and an advisory note that cycle detection is structural only. Uses schema identifier 'delx/util-dependency-order/v1'.
Example use cases
CI/CD pipeline step ordering
“I have a build pipeline with steps: lint, test, build, deploy, and notify. The edges are lint→test, test→build, build→deploy, deploy→notify. What order should these run in and are there any circular dependencies?”
Agent task scheduling in a workflow
“I'm setting up an agent workflow where task B depends on A, task C depends on both A and B, and task D depends on C. Can you compute the dependency order so I know which tasks to run first?”
Package dependency resolution
“I have packages X, Y, Z where X depends on Y and Y depends on Z. Sort them so I install them in the right order and tell me if there are any circular dependency issues.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/dependency-order?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call topological sort without standing up your own graph library or infrastructure. Ideal for AI agents orchestrating multi-step workflows that need to dynamically compute execution order at runtime. At $0.003 USDC per call with no signup required, it's well-suited for agentic pipelines that occasionally need dependency ordering without embedding a full graph algorithm library.
Side effects
- Cyclic graph detected — returns cyclic:true with partial or empty order
- Malformed edge objects missing 'from' or 'to' fields — likely validation error
- Empty nodes array — may return empty order
- Disconnected graph components — unresolved nodes listed in 'unresolved' field
- Payment failure via x402 — 402 response before computation occurs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| edges | array | Directed edges as {from,to} objects among nodes. |
| nodes | array | Workflow node identifiers for topological ordering. |
Output
Schema · Response
{
"type": "json",
"example": {
"order": [
"a",
"b",
"c"
],
"cyclic": false,
"schema": "delx/util-dependency-order/v1",
"advisory": "Cycle detection is structural only.",
"unresolved": []
}
}Tags
x402
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