# Delx HTTP Codes

> Delx HTTP Codes is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).

Look up the meaning of an HTTP status code or retrieve a full reference list of common HTTP status codes.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/http-codes?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-http-codes-b80ad459
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mZ23Vv0YBcu8p6ahqIzZj

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 delx-http-codes-b80ad459 -d '<json body>'
```

Example prompt: What does HTTP status code 429 mean — can you look it up and explain it to me?

## When to prefer this

Choose this endpoint when an agent needs a lightweight, pay-per-call HTTP status code reference without API keys, or when building developer tools, documentation assistants, or debugging workflows that require programmatic status code lookups at minimal cost ($0.001 USDC per call).

## Known failure modes

- Unknown or non-standard status code returns no result or an error
- Invalid input format (e.g. non-numeric code) may return a validation error
- Payment failure via x402 results in 402 response before lookup is performed
- Network timeout if the upstream Delx API is unreachable

## How this service works

Look up HTTP status-code meanings for $0.001 USDC or retrieve the common-code reference.

## Output

Returns the meaning, description, and category of the requested HTTP status code, or a comprehensive reference list of common HTTP status codes including their standard names and explanations.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-http-codes-b80ad459/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)