Install Jentic One Beta
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Selling Partner APIs for Fulfillment Outbound, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Famazonservices.com%2Famazonservices" | shStep 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Famazonservices.com%2Famazonservices" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
What an agent can do with Selling Partner APIs for Fulfillment Outbound API.
Generate fulfillment previews and delivery offers for a basket of SKUs before committing to an order
Create, list, retrieve, update, and cancel Multi-Channel Fulfillment orders shipped from Amazon FBA inventory
Submit fulfillment order status updates and return requests against existing seller fulfillment orders
Fetch carrier tracking details for shipped MCF packages by package number
GET STARTED
Query feature inventory and per-SKU availability for special FBA programs (Blank Box, Black-and-White, Ship-in-Own-Container)
List the supported MCF feature set available to a seller in the current marketplace
Look up the canonical list of MCF return reason codes for a seller fulfillment SKU
Patterns agents use Selling Partner APIs for Fulfillment Outbound API for, with concrete tasks.
★ Direct-to-Consumer Order Fulfillment from FBA
Brands selling on Shopify, BigCommerce, or their own storefront can route orders to Amazon's fulfillment network using the Multi-Channel Fulfillment API. The integration creates a seller fulfillment order with the buyer's address, line items, and chosen shipping speed, then pulls tracking once Amazon hands the package to the carrier. Setup typically takes one to two weeks including LWA app authorization.
Create a fulfillment order with sellerFulfillmentOrderId 'SHOP-12345', shipping speed 'Standard', destination address in the US, and a single SKU 'SKU-ABC' at quantity 2 via POST /fba/outbound/2020-07-01/fulfillmentOrders
Pre-Checkout Delivery Quotes
E-commerce checkouts can call the deliveryOffers endpoint to show buyers accurate delivery dates and shipping speed options sourced from Amazon's network before they pay. The response returns expected ship and delivery windows per offered speed, so the storefront can charge correctly and set realistic expectations. Most teams wire this in alongside cart updates in a few days.
Call POST /fba/outbound/2020-07-01/deliveryOffers with the buyer's postal code and a list of SKU/quantity pairs and return the earliest available delivery date for the 'Priority' shipping speed
Returns and Tracking Sync to Helpdesk
Customer support tools can pull MCF tracking details and submit return requests so agents do not have to swivel-chair into Seller Central. The integration listens for buyer return tickets, calls createFulfillmentReturn with the right reason code, and posts status updates back into the helpdesk thread. Reason codes are pulled from listReturnReasonCodes per SKU.
Look up valid return reason codes for sellerSku 'SKU-ABC', then call PUT /fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/return with reason code 'CR-DAMAGED' for two units
AI Agent Order Operations
AI agents handling seller-side operations can use this API through Jentic to manage MCF orders end-to-end without storing Amazon LWA refresh tokens in the agent context. The agent searches Jentic for the right operation, loads the input schema, and executes against a scoped credential held in your Jentic One instance. Useful for ops copilots that triage stuck shipments and trigger cancellations or updates.
Find the open fulfillment order with sellerFulfillmentOrderId 'SHOP-12345', cancel it via PUT /fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/cancel, and confirm the new status is 'Cancelled'
14 endpoints — the selling partner api for fulfillment outbound lets amazon sellers create, preview, and manage multi-channel fulfillment (mcf) orders that ship from inventory already stored in amazon's fulfillment network.
METHOD
PATH
DESCRIPTION
/fba/outbound/2020-07-01/fulfillmentOrders
Create a Multi-Channel Fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/preview
Preview a fulfillment order before committing
/fba/outbound/2020-07-01/deliveryOffers
Get shipping speed and delivery date offers
/fba/outbound/2020-07-01/fulfillmentOrders
List existing fulfillment orders
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}
Get a single fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/cancel
Cancel a fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/return
Create a return on a fulfillment order
/fba/outbound/2020-07-01/tracking
Get package tracking details
/fba/outbound/2020-07-01/fulfillmentOrders
Create a Multi-Channel Fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/preview
Preview a fulfillment order before committing
/fba/outbound/2020-07-01/deliveryOffers
Get shipping speed and delivery date offers
/fba/outbound/2020-07-01/fulfillmentOrders
List existing fulfillment orders
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}
Get a single fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/cancel
Cancel a fulfillment order
/fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/return
Create a return on a fulfillment order
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Selling Partner Fulfillment Outbound API by hand means running the Login with Amazon token exchange, signing requests with an IAM role, and picking the right regional Selling Partner host yourself. Through Jentic you install once, import Fulfillment Outbound from the API Directory, store the refresh token once, and your agent calls it.
Permission scoping
Fulfillment Outbound puts the order id in the URL path (/fulfillmentOrders/{sellerFulfillmentOrderId}/...), so a rule can pin your agent to one fulfillment order: it can read and track that order and nothing else. You choose the operations it may call, so a cancel or return is not included unless you add it.
Credential isolation
Your Login with Amazon refresh token and signing role are stored once, encrypted, by your own Jentic One instance, which mints a short-lived scoped access token at execution time. The long-lived refresh token never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'create a Multi-Channel Fulfillment order' or 'track a fulfillment order', and Jentic returns the matching Selling Partner operation with its input schema so the agent calls the right endpoint without browsing the reference docs.
Alternatives and complements available in the Jentic catalogue.
Specific to using Selling Partner APIs for Fulfillment Outbound API through Jentic.
What authentication does the Selling Partner Fulfillment Outbound API use?
The Amazon Selling Partner API uses Login with Amazon (LWA) OAuth 2.0. Agents exchange a refresh token for a short-lived access token sent in the x-amz-access-token header on each request. Through Jentic, the LWA refresh token is held in your Jentic One instance and never enters the agent's context - only scoped, short-lived access tokens are injected at call time.
Can I create Multi-Channel Fulfillment orders with this API?
Yes. POST /fba/outbound/2020-07-01/fulfillmentOrders creates a seller fulfillment order against the seller's existing FBA inventory, with a destination address, line items, shipping speed, and a sellerFulfillmentOrderId you supply. POST /fba/outbound/2020-07-01/fulfillmentOrders/preview returns delivery and fee estimates first if you want to confirm before committing.
What are the rate limits for the Selling Partner Fulfillment Outbound API?
Amazon publishes per-operation rate plans rather than a single global limit. Most outbound fulfillment operations sit at 2 requests per second with a burst of 30, but createFulfillmentReturn and getFulfillmentPreview are lower. Check the Selling Partner API documentation for the live numbers per operation, since Amazon adjusts them.
How do I cancel a fulfillment order through Jentic?
Search Jentic for 'cancel a Multi-Channel Fulfillment order'. Jentic returns the operation backed by PUT /fba/outbound/2020-07-01/fulfillmentOrders/{sellerFulfillmentOrderId}/cancel, you load the schema (the only input is the sellerFulfillmentOrderId), and execute. The Jentic SDK handles the LWA token exchange so the agent never sees the refresh token.
Does this API cover inbound shipments to Amazon warehouses?
No. This spec is the Fulfillment Outbound API only - orders shipping out of FBA to a buyer. Inbound shipments to Amazon warehouses are covered by the separate Selling Partner Fulfillment Inbound API. Order placement on amazon.com itself is also out of scope; this is for sellers fulfilling their own non-Amazon channels via Amazon's network.
Can I get carrier tracking through this API?
Yes. GET /fba/outbound/2020-07-01/tracking returns carrier name, tracking number, current status, and event history for an MCF package. You pass the packageNumber (returned on the fulfillment order) and Amazon returns the latest scan events.
Can I limit what my agent is allowed to do with the Amazon Fulfillment Outbound API?
Yes. Because you self-host Jentic One, your own rules decide which Fulfillment Outbound operations and credentials the agent can use, so you can grant it read-and-track access to fulfillment orders while leaving cancel and return operations out. Since the seller fulfillment order id sits in the URL path, a rule can pin the agent to a single order (/fulfillmentOrders/{sellerFulfillmentOrderId}/...), letting it read and track that one order and nothing else. Amazon credentials are never handed to the agent; Jentic One injects a short-lived scoped access token only for the operations you permit.
For Agents
Lets agents create Multi-Channel Fulfillment orders from a seller's Amazon FBA inventory, fetch delivery offers, retrieve tracking, and submit returns or status updates against the sellingpartnerapi-na.amazon.com endpoint.
Use for: I need to create a Multi-Channel Fulfillment order from my Amazon FBA stock, I want to preview shipping options and delivery dates before I place an MCF order, Get the package tracking details for a shipped seller fulfillment order, List all Multi-Channel Fulfillment orders placed in the last 30 days
Not supported: Does not handle inbound shipments to Amazon warehouses, listings, pricing, or non-Amazon carrier label printing - use for Multi-Channel Fulfillment outbound orders only.
The Selling Partner API for Fulfillment Outbound lets Amazon sellers create, preview, and manage Multi-Channel Fulfillment (MCF) orders that ship from inventory already stored in Amazon's fulfillment network. Sellers can quote delivery offers, list and update fulfillment orders, retrieve package tracking, submit return reasons, and query feature inventory across regions. The spec exposes 14 endpoints under the /fba/outbound/2020-07-01 path tree and is part of the broader Amazon Selling Partner API family that uses LWA (Login with Amazon) OAuth 2.0 for authorization.
/fba/outbound/2020-07-01/tracking
Get package tracking details