Ally Invest
Ally Invest is an online brokerage platform offering commission-free self-directed trading of US stocks, ETFs, and options with no account minimums. The platform provides REST APIs (originally developed from the TradeKing acquisition) for managing self-directed investment accounts, placing trades, accessing streaming real-time market data, retrieving account balances and holdings, managing watchlists, and querying market quotes and news. Authentication uses OAuth 1.0 with consumer and token credentials. Responses are available in JSON and XML formats.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Ally Invest the way a machine reads it — 45 machine-readable artifacts across 1 API, 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 — Ally Invest scores 50.3/100 (developing), with a separate agent-readiness read of 24/100 (agent aware). 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
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How we profile Ally Invest
Each block below is one kind of artifact we hold for Ally Invest. 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 11
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.
Ally Invest Orders API
The Ally Invest Orders API enables programmatic placement and management of equity and options orders for self-directed brokerage accounts. Orders are submitted using a FIXML-va...
Ally Invest Market Data API
The Ally Invest Market Data API provides access to real-time and delayed market data including equity and options quotes, option chains, option strikes and expirations, market n...
Ally Invest Streaming Market Data API
The Ally Invest Streaming API delivers real-time market quotes via a persistent HTTP streaming connection. Clients subscribe to one or more ticker symbols and receive continuous...
Ally Invest Watchlists API
The Ally Invest Watchlists API allows programmatic creation and management of symbol watchlists associated with a member account. Supports listing all watchlists, creating new w...
Ally Invest Member API
The Ally Invest Member API provides access to the authenticated member's profile information including account identifiers and user details associated with the OAuth credentials.
Ally Invest Accounts API
Account balances, holdings, history, and portfolio data
Ally Invest Market Data API
Quotes, options, news, time-and-sales, and top lists
Ally Invest Member API
Member profile and identity
Ally Invest Orders API
Order placement, preview, retrieval, and cancellation
Ally Invest Utilities API
API status and version utilities
Ally Invest Watchlists API
Watchlist creation and symbol management
Scroll within the panel for all 11 ·
Open Collections 7
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 COLLECTIONAlly Invest Accounts API
OPEN COLLECTIONAlly Invest Accounts Market Data API
OPEN COLLECTIONAlly Invest Accounts Member API
OPEN COLLECTIONAlly Invest Accounts Orders API
OPEN COLLECTIONAlly Invest Accounts Utilities API
OPEN COLLECTIONAlly Invest Accounts Watchlists API
OPEN COLLECTIONScroll within the panel for all 7 ·
Pricing 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.
Ally Invest 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.
Ally Invest Finops
FINOPSFeatures 7
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.
Commission-Free Trading
No commissions on US stocks and ETFs; $0.50 per options contract
No Account Minimum
Self-directed cash accounts require no minimum deposit to open
OAuth 1.0 Authentication
API access secured via OAuth 1.0 with consumer key/secret and OAuth token/secret pairs
JSON and XML Responses
All REST API endpoints return responses in both JSON and XML formats
Streaming Market Data
Real-time quote streaming via persistent HTTP connections for subscribed symbols
FIXML Order Format
Orders submitted in FIXML-variant XML format supporting equities and options
Order Preview
Preview orders before execution to validate parameters and estimated costs
Scroll within the panel for all 7 ·
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.
Ally Invest Context
JSON-LDSpectral Rules 1
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.
Ally Invest API Rules
SPECTRALJSON Schema 3
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.
Examples 4
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.
Get Accounts Example
EXAMPLEGet Market Clock Example
EXAMPLEGet Quotes Example
EXAMPLEGet Watchlists Example
EXAMPLESecurity 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.
Algorithmic Trading
Build automated trading systems that place and manage orders based on market signals
Portfolio Monitoring
Track account balances, holdings, and performance in real time via API
Market Data Aggregation
Retrieve real-time and delayed quotes, options chains, and news for analysis
Watchlist Management
Maintain dynamic symbol watchlists and retrieve quote updates for tracked securities
Trade Journaling
Pull account history and order records programmatically for trade journaling tools
Resources
Every other property we hold for Ally Invest — 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
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/ally-invest · machine-readable index on apis.io
This is an independent, third-party profile of Ally Invest, 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.
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