# Delx Runway

> Delx Runway is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Calculate static cash runway in months from a given cash balance and monthly burn rate

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/runway
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-runway-367ac289
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_70ww3aeQd2MbiJSl9zKcL

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-runway-367ac289 -d '<json body>'
```

Example prompt: How many months of runway do we have if we have $2.4 million in cash and we're burning $200,000 per month?

## When to prefer this

Choose this endpoint when you need a fast, deterministic, stateless runway calculation as a bounded preflight or analysis step inside an agent workflow — especially when you want machine-readable JSON output for $0.003 USDC without any data retention. Prefer it over general-purpose LLM math when auditability and determinism matter.

## Known failure modes

- Missing or non-numeric cash value returns a validation error
- Missing or zero monthly_burn causes a division-by-zero or validation error
- Negative values for cash or burn may return an error or unexpected result
- Malformed request body returns a 400-level error

## How this service works

Calculate static cash runway from cash and monthly burn. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and production co…

## Output

Returns a deterministic JSON object containing the calculated cash runway expressed in months, derived by dividing cash by monthly burn rate. The result is advisory and stateless — no data is retained after the call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cash": {
   "type": "number",
   "description": "Input field: cash."
  },
  "monthly_burn": {
   "type": "number",
   "description": "Input field: monthly_burn."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cash": 120000,
  "schema": "delx/util-runway/v1",
  "advisory": "Static runway excludes growth, financing, taxes, and working-capital changes.",
  "sustainable": false,
  "monthly_burn": 10000,
  "runway_months": 12
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-runway-367ac289/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)