Agricultural Marketing Service
The Agricultural Marketing Service (AMS), an agency of the United States Department of Agriculture (USDA), oversees programs in five commodity areas: cotton and tobacco, dairy, fruits and vegetables, livestock and seeds, and poultry. AMS provides testing, standardization, grading, and market news services. AMS operates several public APIs for agricultural market data including the Market Analysis Reporting System (MARS) API for real-time commodity market news and the Livestock Mandatory Price Reporting System (LMPRS) API for livestock price data.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Agricultural Marketing Service the way a machine reads it — 55 machine-readable artifacts across 4 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Agricultural Marketing Service scores 37.4/100 (thin), with a separate agent-readiness read of 35/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Agricultural Marketing Service's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/agricultural-marketing-service/"
title="Agricultural Marketing Service on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/agricultural-marketing-service.svg"
alt="Agricultural Marketing Service Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/agricultural-marketing-service/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/agricultural-marketing-service/"
title="Agricultural Marketing Service on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/agricultural-marketing-service/card.svg"
alt="Agricultural Marketing Service Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Agricultural Marketing Service
Each block below is one kind of artifact we hold for Agricultural Marketing Service. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 4
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
USDA Local Food Directories API
The USDA Local Food Directories API provides data sharing access to directory information for farmers markets, food hubs, on-farm markets, community supported agriculture (CSA) ...
Agricultural Marketing Service Offices API
USDA AMS market news offices
Agricultural Marketing Service Reports API
Agricultural market news reports across all commodity types
USDA AMS LMPRS API (Livestock Mandatory Price Reporting)
The Livestock Mandatory Price Reporting System (LMPRS) API provides programmatic access to federally mandated livestock price report data. The API requires no authentication for...
Postman Collections 2
A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.
Ready-to-run Postman collections for exercising this provider's APIs.
Open Collections 3
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONUSDA AMS MARS API (MyMarketNews) Offices API
OPEN COLLECTIONUSDA AMS MARS API (MyMarketNews) Offices Reports API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Agricultural Marketing Service Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Features 6
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
No Authentication Required
The MARS and LMPRS APIs are publicly accessible without authentication; registered users can obtain API keys for higher rate limits.
JSON Data Format
All API responses are returned in JSON format including errors and paginated results.
Real-Time Market News
MARS API provides up-to-date commodity price and volume data as reports are released by AMS market reporters.
Historical Data Access
Access up to 180 days of historical market data per request with up to 100,000 records returned per call.
Commodity Coverage
Market data covers livestock, dairy, fruits, vegetables, grains, cotton, tobacco, poultry, and other agricultural commodities.
Mandatory Price Reporting
LMPRS API provides federally mandated livestock price data under the Livestock Mandatory Reporting Act.
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral Rules 2
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
JSON Schema 8
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Error Response
JSON SCHEMAOffice
JSON SCHEMAOffices List Response
JSON SCHEMAPagination Stats
JSON SCHEMAReport Data Response
JSON SCHEMAReport Data
JSON SCHEMAReport
JSON SCHEMAReports List Response
JSON SCHEMAScroll within the panel for all 8 ·
JSON Structure 8
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Mars Api Error Response Structure
JSON STRUCTUREMars Api Office Structure
JSON STRUCTUREMars Api Offices List Response Structure
JSON STRUCTUREMars Api Pagination Stats Structure
JSON STRUCTUREMars Api Report Data Response Structure
JSON STRUCTUREMars Api Report Data Structure
JSON STRUCTUREMars Api Report Structure
JSON STRUCTUREMars Api Reports List Response Structure
JSON STRUCTUREScroll within the panel for all 8 ·
Examples 8
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Scroll within the panel for all 8 ·
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Agricultural Price Monitoring
Track commodity prices across livestock, dairy, fruits, and vegetables to support trading, purchasing, and production decisions.
Market Analysis and Research
Pull historical and current market news data for academic research, economic analysis, and policy work.
Supply Chain Integration
Integrate USDA market news data into supply chain management and procurement systems for real-time pricing.
Local Food System Mapping
Use the Local Food Directories API to locate and integrate data about farmers markets, CSAs, and food hubs.
Commodity Price Alerts
Build automated price monitoring systems using the MARS API to trigger alerts when prices cross defined thresholds.
Integrations 2
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
Microsoft Excel
USDA AMS provides guides for integrating MARS API data directly into Microsoft Excel for market analysis.
api.data.gov
AMS APIs are accessible through the federal api.data.gov gateway for consistent API key management.
Resources
Every other property we hold for Agricultural Marketing Service — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 1
Portal, sign-up, and the first successful call
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/agricultural-marketing-service · machine-readable index on apis.io
This is an independent, third-party profile of Agricultural Marketing Service, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.