John\'s Essentials Agent API
AI agent orchestration (tool calls, workflows, streaming)
AI agent orchestration (tool calls, workflows, streaming)
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openapi: 3.2.0
info:
contact:
email: support@johnsessentials.com
name: John's Essentials Support
url: https://johnsessentials.com
description: 'Programmatic access to every tool on John''s Essentials. Compress PDFs,
convert images, OCR documents, run AI agents that orchestrate any of
the above — all behind a single bearer-token API key. ## Authentication
All endpoints under `/api/v1/public/*` require a bearer token whose
value is an API key starting with `je_live_sk_`. Generate keys in
the dashboard at `/integrations?tab=api-keys`. ## Rate limits
Tier-based limits are enforced per key on a 1-hour sliding window. Every response carries `X-RateLimit-Limit`, `X-RateLimit-Remaining`,
and `X-RateLimit-Reset`. 429 responses include the standard
`Retry-After` header. ## Credits
Every tool call spends the tool''s published credit price from your
account''s monthly allowance — the same credits and the same prices
the website charges (Starter 1,500 / Business 40,000 a month). The
price of each tool is the `credits` field on `GET /tools`. Tool
responses carry `X-Credits-Cost` (what this call cost) and
`X-Credits-Remaining` (credits left this month, or `unlimited`). `GET /usage` is the meter: credits used and left this month, when
the allowance resets and what each API key spent; it spends
nothing. When
the allowance is spent the call fails with 402 `file_limit_reached`;
the body names the call''s cost (`credits`) and carries
`add_credits_url`. Credit packs (500 for $7, 5,000 for $25, 25,000
for $59) are bought on the billing page, top up the website and the
API alike, and stay spendable for twelve months. Free accounts also
have a daily cap of 100 credits (402 `daily_limit_reached`, with
`resets_at_utc`); a pack does not lift that cap, a paid plan does. Agent runs additionally draw on the key''s monthly USD budget for
model tokens (`cost_cap_exceeded`). ## Idempotency
Send `Idempotency-Key: ` on any unsafe request
(POST/PUT/PATCH) to make retries safe. Identical key + body within
24h replays the cached response and adds `Idempotency-Replayed: true`. Reusing a key with a different body returns 409 `idempotency_key_in_use`. ## Errors
All error responses share the same shape:
```json
{ "error": { "code": "auth_invalid_key",
"message": "Invalid API key",
"doc_url": "https://docs.johnsessentials.com/api/errors#auth_invalid_key",
"request_id": "uuid" } }
```
The full error catalogue is at `/api/errors`. ## Schema extensions (keys beginning `x-`)
A tool''s `parameters_schema` is the JSON Schema describing its inputs. Some properties in it also carry keys beginning `x-` — today `x-ui` and
`x-show-when`. These are presentation hints: instructions to our own web
interface about labelling, units, and which controls to hide. They are not
part of the API contract, so they may be added, changed, or removed at any
time, without a new API version and without a deprecation notice. An `x-` key never changes the value a parameter accepts or returns. `type`, `enum`, `minimum`, `maximum`, `default` and `required` are
authoritative. `x-ui.wire_scale` is the unit our form displays, not the
unit the API accepts. `x-ui.unit_from` names another parameter whose
value decides the unit and range our form shows for this one — a corner
radius read as pixels up to 5000, or as a percentage up to 50 — and it
only ever narrows the declared `minimum` and `maximum`, which remain
what the API accepts. `x-show-when` says when our interface hides a
control, never whether the API accepts it — a parameter our interface
never shows is still accepted. `x-ui.draw` says which part of a drawing
a parameter is (see `x-draw` below): our interface sets it by drawing on
the file instead of typing it, and writes the same value the parameter
accepts. Three `x-` keys sit on the schema itself, beside `properties` and
`required`, and describe the tool rather than one parameter. They are
advisory in the same way: our own interface and plan checks read them,
and the tool''s endpoint remains what decides.'
license:
name: Proprietary
url: https://johnsessentials.com/license
summary: Deterministic file-processing tools, AI agent orchestration, and a public REST surface for both.
title: John's Essentials Agent API
version: 1.0.0
servers:
- description: Production
url: https://api.johnsessentials.com/api/v1
- description: Local development
url: http://localhost:3000/api/v1
security:
- BearerAuth: []
tags:
- description: AI agent orchestration (tool calls, workflows, streaming)
name: Agent
paths:
/public/agent/conversations:
get:
description: 'Conversation threads persist across runs (retention by plan tier).
Pass a conversation''s id as `conversation_id` in a run request to
continue it with full context.'
operationId: agentConversationsList
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Conversations, newest first.
'401':
$ref: '#/components/responses/Unauthorized'
summary: List saved agent conversations
tags:
- Agent
/public/agent/conversations/{id}:
delete:
operationId: agentConversationDelete
parameters:
- in: path
name: id
required: true
schema:
format: uuid
type: string
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Deleted.
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
summary: Delete a conversation and its turns
tags:
- Agent
get:
operationId: agentConversationGet
parameters:
- in: path
name: id
required: true
schema:
format: uuid
type: string
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: The conversation and its message turns.
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
summary: Get a conversation with its turns
tags:
- Agent
patch:
operationId: agentConversationRename
parameters:
- in: path
name: id
required: true
schema:
format: uuid
type: string
requestBody:
content:
application/json:
schema:
properties:
title:
maxLength: 120
type: string
required:
- title
type: object
required: true
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Renamed.
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
summary: Rename a conversation
tags:
- Agent
/public/agent/history:
get:
operationId: agentHistory
parameters:
- in: query
name: limit
schema:
default: 20
maximum: 100
type: integer
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Recent runs.
summary: List recent agent runs
tags:
- Agent
/public/agent/jobs/{jobId}:
delete:
operationId: agentCancel
parameters:
- $ref: '#/components/parameters/JobIdParam'
responses:
'200':
content:
application/json:
schema:
properties:
job_id:
format: uuid
type: string
ok:
example: true
type: boolean
status:
example: cancelled
type: string
type: object
description: Cancellation accepted.
'404':
$ref: '#/components/responses/NotFound'
'503':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Job queue unavailable.
summary: Cancel an in-flight agent run
tags:
- Agent
get:
description: 'Returns the run''s current `status` (queued/running/paused_approval/
complete/error/cancelled), a `done` boolean, its `result` payload once
finished, and any `error`. Use this to recover the outcome if the SSE
stream (`/jobs/{jobId}/stream`) was dropped. Scoped to the job''s owner.'
operationId: agentJobStatus
parameters:
- $ref: '#/components/parameters/JobIdParam'
responses:
'200':
content:
application/json:
schema:
properties:
done:
type: boolean
error:
type: string
finished_at:
format: date-time
type: string
job_id:
format: uuid
type: string
paused_at_step:
type: integer
result:
description: Accumulated step results (present when finished).
type: object
status:
example: complete
type: string
type: object
description: Current job status.
'404':
$ref: '#/components/responses/NotFound'
summary: Poll an agent run's status and result
tags:
- Agent
/public/agent/jobs/{jobId}/stream:
get:
description: 'Server-Sent Events stream. Each event is a JobEvent JSON object
(see schema). The stream sends `started` first, zero-or-more
`token` / `tool_call` / `tool_result` / `progress` events, then
either `complete` or `error`, then closes.'
operationId: agentStream
parameters:
- $ref: '#/components/parameters/JobIdParam'
responses:
'200':
content:
text/event-stream:
schema:
$ref: '#/components/schemas/JobEvent'
description: SSE stream — see JobEvent schema.
summary: Subscribe to live SSE events for an agent run
tags:
- Agent
/public/agent/run:
post:
description: 'Submits a prompt to the orchestrator. The agent plans steps,
calls tools from the registry, and returns the final result.
Set `stream: true` and consume the SSE stream at
`/public/agent/jobs/{jobId}/stream` for live tokens + tool calls.'
operationId: agentRun
parameters:
- $ref: '#/components/parameters/IdempotencyKey'
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/AgentRunRequest'
required: true
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Agent run completed.
headers:
Idempotency-Replayed:
$ref: '#/components/headers/IdempotencyReplayed'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'402':
$ref: '#/components/responses/PaymentRequired'
'403':
$ref: '#/components/responses/Forbidden'
'409':
$ref: '#/components/responses/Conflict'
'422':
description: Agent gave up after max_iterations (agent_max_iterations).
'429':
$ref: '#/components/responses/TooManyRequests'
'500':
$ref: '#/components/responses/InternalError'
summary: Run the AI agent orchestrator
tags:
- Agent
/public/agent/run/async:
post:
description: 'Same request body and paid gates as `/public/agent/run`, but returns
`{job_id, session_id, conversation_id, status}` immediately instead of
blocking. Consume live progress at
`/public/agent/jobs/{jobId}/stream`; cancel via
`DELETE /public/agent/jobs/{jobId}`. Cost is debited against the API
key''s monthly ledger when the run finishes (same amounts as the sync
route).'
operationId: agentRunAsync
parameters:
- $ref: '#/components/parameters/IdempotencyKey'
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/AgentRunRequest'
required: true
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Run accepted and started; stream for progress.
headers:
Idempotency-Replayed:
$ref: '#/components/headers/IdempotencyReplayed'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'402':
$ref: '#/components/responses/PaymentRequired'
'403':
$ref: '#/components/responses/Forbidden'
'404':
description: conversation_id not found or not owned by this account.
'409':
$ref: '#/components/responses/Conflict'
'429':
$ref: '#/components/responses/TooManyRequests'
'500':
$ref: '#/components/responses/InternalError'
summary: Run the AI agent asynchronously
tags:
- Agent
components:
responses:
Conflict:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: 'Idempotency-Key collision — same key with a different body, or
a concurrent in-flight request with the same key.
'
TooManyRequests:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Sliding 1-hour rate limit exceeded.
headers:
Retry-After:
$ref: '#/components/headers/RetryAfter'
X-RateLimit-Limit:
$ref: '#/components/headers/XRateLimitLimit'
X-RateLimit-Remaining:
$ref: '#/components/headers/XRateLimitRemaining'
X-RateLimit-Reset:
$ref: '#/components/headers/XRateLimitReset'
Unauthorized:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Auth failed (missing/malformed/invalid/expired/inactive key).
headers:
X-Request-ID:
$ref: '#/components/headers/XRequestId'
PaymentRequired:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Monthly USD cost cap reached for this key (quota_cost_exceeded). Phase 3 / M3.
NotFound:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Resource not found.
Forbidden:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: API key lacks required scope (auth_scope_missing).
BadRequest:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Request validation failed.
InternalError:
content:
application/json:
schema:
$ref: '#/components/schemas/Envelope'
description: Server error. NOT cached by Idempotency-Key — safe to retry.
schemas:
ErrorBody:
additionalProperties: true
description: 'Additional fields per code (validation errors, retry_after, hints)
appear at this level. additionalProperties: true is intentional.
'
properties:
code:
description: 'Stable canonical code from the taxonomy. Branch on this, not
on `message`. Full list at /api/errors.
'
enum:
- auth_missing_header
- auth_malformed_header
- auth_invalid_key
- auth_expired_key
- auth_inactive_key
- auth_scope_missing
- quota_calls_exceeded
- quota_cost_exceeded
- quota_storage_exceeded
- quota_agent_runs_exceeded
- credit_exhausted
- tool_not_found
- tool_input_invalid
- tool_file_too_large
- tool_file_not_found
- tool_unsupported
- tool_timeout
- tool_internal
- idempotency_key_in_use
- agent_max_iterations
- agent_unauthorized_tool
- agent_invalid_plan
- workflow_not_found
- workflow_invalid
- bad_request
- forbidden
- not_found
- conflict
- internal_error
- service_unavailable
type: string
doc_url:
format: uri
type: string
message:
type: string
request_id:
format: uuid
type: string
required:
- code
- message
- doc_url
type: object
Envelope:
properties:
data:
description: Handler payload on success; null on error.
error:
oneOf:
- type: 'null'
- $ref: '#/components/schemas/ErrorBody'
meta:
$ref: '#/components/schemas/EnvelopeMeta'
request_id:
format: uuid
type: string
success:
type: boolean
required:
- success
- request_id
- meta
type: object
EnvelopeMeta:
properties:
rate_limit:
properties:
limit:
type: integer
remaining:
type: integer
reset:
description: Unix seconds
type: integer
type: object
timestamp:
format: date-time
type: string
version:
example: '1.0'
type: string
required:
- timestamp
- version
type: object
AgentRunRequest:
properties:
conversation_id:
description: Resume a saved conversation thread (see /public/agent/conversations). Omit to start a new one — the response returns its id.
format: uuid
type: string
file_ids:
description: File IDs to attach (from POST /public/files)
items:
type: string
type: array
message:
description: The task/prompt for the agent to run
type: string
required:
- message
type: object
JobEvent:
additionalProperties: true
description: 'IMPORTANT — additionalProperties is true intentionally. M4 / future
phases add new fields without breaking SDK consumers. The named
cost_usd_so_far / tokens_in / tokens_out / model fields above were
promoted from additional properties in Phase 2 of SWAGGER_ON_STEROIDS.
'
properties:
cost_usd_so_far:
description: 'Running total of LLM + per-call costs for this job. Updates
mid-orchestration so SDK consumers can show spend live.
'
example: 0.0341
format: double
type: number
job_id:
format: uuid
type: string
message:
type: string
model:
description: LLM model the current step is using (provider-qualified).
example: grok-4-fast-non-reasoning
type: string
schema_version:
default: 1
description: 'Bumped when the event shape changes incompatibly. M3 added
cost_usd_so_far / tokens_in / tokens_out / model fields without
bumping schema_version, relying on additionalProperties: true.
'
type: integer
tokens_in:
description: Input tokens consumed so far.
type: integer
tokens_out:
description: Output tokens generated so far.
type: integer
type:
enum:
- started
- progress
- complete
- error
- tool_call
- tool_result
- token
- cost
type: string
required:
- job_id
- type
- schema_version
type: object
headers:
IdempotencyReplayed:
description: Present and `true` when this response is a cached replay.
schema:
enum:
- 'true'
type: string
XRequestId:
description: Unique server-assigned ID for this request, also echoed in `error.request_id`.
schema:
format: uuid
type: string
XRateLimitReset:
description: 'Unix timestamp (seconds) when the OLDEST in-window request rolls
out. Note: this is a rolling timestamp post-K5; pre-K5 it was the
top of the next clock hour. SDK consumers must NOT cache.
'
schema:
type: integer
RetryAfter:
description: Seconds to wait before retrying after 429.
schema:
minimum: 1
type: integer
XRateLimitLimit:
description: Max requests allowed in the current sliding 1-hour window.
schema:
type: integer
XRateLimitRemaining:
description: Requests remaining in the current sliding 1-hour window.
schema:
type: integer
parameters:
IdempotencyKey:
description: Opaque client-chosen string ≤255 chars. Identical key + body replays cached response within 24h.
in: header
name: Idempotency-Key
required: false
schema:
maxLength: 255
minLength: 1
type: string
JobIdParam:
in: path
name: jobId
required: true
schema:
format: uuid
type: string
securitySchemes:
BearerAuth:
bearerFormat: API Key
description: 'Bearer token = your API key, prefixed `je_live_sk_`.
Example: `Authorization: Bearer je_live_sk_abc123...`
'
scheme: bearer
type: http