The request
Reference for Record expense, HeadHoncho API v1. It is a command, sent to the base address https://api.headhoncho.app.
POST /api/v1/commands/record-expense
The key needs the Money area at do. An answered call costs 1 credit; a refusal costs nothing. See credits.
It runs the app's own command record-expense. Send an Idempotency-Key header with every call: the same key with the same body returns the first answer and runs nothing twice. See the model.
Parameters
| Name | Kind | Required | Description | Example |
|---|---|---|---|---|
job_id | id, in the JSON body | Yes | The job id, or its number. | job_1138 |
expense_type_id | id, in the JSON body | Yes | From Who am I's expense_types. | ext_01 |
amount | money, in the JSON body | Yes | What it cost, a number. | 180 |
paid_by_worker_id | id, in the JSON body | No | The technician who paid it. Empty: the company paid. | wrk_7a12 |
incurred_on | date, in the JSON body | No | The day. Default: today in the company's time zone. | 2026-10-16 |
vendor | text, in the JSON body | No | Who it was bought from. | U-Haul |
reference | text, in the JSON body | No | A receipt or invoice number. | R-55102 |
memo | text, in the JSON body | No | Anything to remember. | Dolly rental |
Try it with your key
Paste your key and change the values. The box builds the call as a cURL line and a fetch line, ready to copy. It never sends anything itself.
Your key stays in this page and is never sent anywhere. Copy the line below and run it yourself.
What comes back
accepted, job_id, number, expense_id, amount and position.
It never deletes anything. It changes only what the command names, and it writes the change to the job's history with who asked for it.
Every field in the answer
Types are read from the example answer. Money is a plain number in the company's currency. A time carries its offset from UTC (Z is UTC). Ids are opaque text. A field with no line of its own here has its name spelled out; the common fields mean the same on every page.
| Field | Type | Meaning |
|---|---|---|
accepted | true or false | True when the command ran. A command that cannot run is an error instead. |
job_id | id (text) | The id of the job. |
number | whole number | The number people say out loud, such as the job number. |
position | whole number | Where the change landed in the event log. Pass it as after on a read to see your own write. |
expense_id | id (text) | The id of the expense. |
amount | money (decimal as text) | The amount. In the company's currency. |
Errors that apply
| Code | Status | What it means |
|---|---|---|
| `missing_key` | 401 | Send your key as Authorization: Bearer hh_live_... |
| `unknown_key` | 401 | That key is not one we issued, or it was revoked. |
| `no_access` | 403 | This credential does not reach that. Ask the person who made it for access. |
| `read_only` | 403 | This credential may read this area but not change it. |
| `not_found` | 404 | No such record in the companies this credential reaches. |
| `invalid` | 422 | Some fields were refused. See fields. |
| `missing_idempotency_key` | 400 | Send an Idempotency-Key header on every command. |
| `idempotency_mismatch` | 409 | This Idempotency-Key was used with a different body. |
| `idempotency_in_progress` | 409 | A command with this Idempotency-Key is still running. Wait a moment and send it again. |
| `no_credits` | 402 | Out of credits. Top up on Settings › Credits, or turn on auto top-up. |
Related
- Record payment: Record money the customer paid on a job. A payment that covers the price closes the job, as it does in the app.
- Void payment: Stop a payment entered wrong from counting. It stays on the job's money, marked voided, with why.
- Void expense: Stop an expense entered wrong from counting. It stays on the job's money, marked voided, with why.
- Book field report: Book what a technician reported: the payment, the parts and the job's price, as sent or as you correct them. The job closes when nothing is missing.
- Dismiss field report: Not this: book nothing from a technician's report. What they said is kept on the job.
- Add expense type: Add a kind of cost the company records, such as Parts or Truck rental. A name already in use is refused, so sending it twice adds one.
- Update expense type: Rename an expense type, or retire it so new expenses cannot pick it. Old expenses keep it either way.
- The same records in the app: the Finance panel.
- How the API fits together: the model, API keys, errors and the MCP server.