---
title: "Create Chain"
method: POST
path: "/api/orchestrator/chains"
tags: ["orchestrator"]
---

# Create Chain

`POST /api/orchestrator/chains`

## Request

- Base URL: `https://api.tintin-x.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.tintin-x.com/api/orchestrator/chains`
- Auth: HTTP bearer

Register a chain and dispatch its no-dependency steps.

Idempotent within 30s: caller may retry on transient failure
(504, network drop) without producing duplicate chains. Implicit
dedup key uses (user_id, body JSON); explicit Idempotency-Key
header overrides.

## Request body

- ChainCreateRequest
  - `agent_id` string, uuid, required
  - `conversation_id` string, uuid, nullable
  - `steps` ChainStep[], required
    - `step_id` string, required
    - `atom_type` string, required
    - `params` object
    - `depends_on` string[]
    - `input_from` string, nullable
    - `input_param` string, nullable
    - `input_result_key` string

## Response `201`

Successful Response

- ChainCreateResponse
  - `chain_id` string, uuid, required
  - `first_steps` string[], required
  - `first_jobs` FirstJobInfo[], required
    - `step_id` string, required
    - `job_id` string, nullable
    - `error` string, nullable
  - `idempotent_replay` boolean

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/tintin-x/apis/tintin-api.md) · [All operations](https://skmtc.dev/tintin-x/apis/tintin-api/llms.txt) · [OpenAPI document](https://skmtc.dev/tintin-x/apis/tintin-api/revisions/8839a8d0a66c?raw)