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.

Ally Invest publishes 7 API contracts indexed on the APIs.io network, including Accounts API, Market Data API, Member API, and 4 more. Tagged areas include Brokerage, Investing, Trading, Finance, and Stocks.

The Ally Invest catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Ally Invest’s developer surface includes engineering blog, authentication, documentation, getting-started guide, support, pricing, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.8/100 developing ▬ flat Agent 24/100 agent aware Heartbeat 18/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

1 published contract 7 Features 5 Use Cases

Brokerage Investing Trading Finance Stocks Options Market DataSelf-DirectedFinancial Services

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 40.8/100 · developing

Contract Quality 11.0 / 19

Developer Ergonomics 8.7 / 15

Access Clarity 3.9 / 15

Operational Transparency 1.0 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 26.3 — up to +14.7 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points
Contract Governance scores 9.8 — up to +10.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/ally-invest/apis.yml: open an issue on github.com/api-evangelist/ally-invest to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Private Markets and Fund Administration (ILPA, broker-dealer registration, options market-data vendors)	regulated	19.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

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 Accounts API

Account balances, holdings, history, and portfolio data

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 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 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 Utilities API

API status and version utilities

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...

Scroll for all 7

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Ally Invest Accounts API

OPEN COLLECTION

Ally Invest Accounts Market Data API

OPEN COLLECTION

Ally Invest Accounts Member API

OPEN COLLECTION

Ally Invest Accounts Orders API

OPEN COLLECTION

Ally Invest Accounts Utilities API

OPEN COLLECTION

Ally Invest Accounts Watchlists API

OPEN COLLECTION

Ally Invest API pricing

Not yet checked against Ally Invest's own pricing page. Compiled by API Evangelist on 2026-06-13 from www.ally.com/invest/commissions-and-fees/; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Self-Directed Trading (API Access Included) free	Free · $0.50 per options Contract Fee

Plan details, limits and sources →

Rate limits

REST API Default Rate Limit: 1 requests per second
Streaming API Connection Limit: 1 concurrent connections
Market Data Quote Symbols Per Request: 325 symbols per request

Compiled by API Evangelist, not yet checked against Ally Invest's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Ally Invest Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ally Invest Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Ally Invest

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Ally Invest Finops

FINOPS

Features 7

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 for all 7

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Ally Invest Context

5 classes · 46 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Ally Invest — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

AllyInvestAccountBalance

7 properties

JSON SCHEMA

AllyInvestOrder

15 properties

JSON SCHEMA

AllyInvestQuote

95 properties

JSON SCHEMA

Examples 4

Example request and response payloads for these APIs.

Get Accounts Example

1 fields

EXAMPLE

Get Market Clock Example

1 fields

EXAMPLE

Get Quotes Example

1 fields

EXAMPLE

Get Watchlists Example

1 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ally Invest Authentication

apiKey · 1 scheme

SECURITY

Ally Invest Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Ally Invest Agentic Access

28 operations · 7 acting

AGENTIC

Use Cases 5

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

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

AttributionGuidelines

AttributionGuidelines

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 5

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

AllyInvestPy Python SDK (Community)

SDKs

PyAlly Python3 SDK (Community)

SDKs

ally-api Go Bindings (Community)

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimiting

RateLimiting

Support

Support

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

TermsOfService

Pricing

Plans

FinOps

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

SelfDirectedTrading

SelfDirectedTrading

Source (apis.yml)

aid: ally-invest
url: https://raw.githubusercontent.com/api-evangelist/ally-invest/refs/heads/main/apis.yml
name: Ally Invest
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ally-invest.png
tags:
- Brokerage
- Investing
- Trading
- Finance
- Stocks
- Options
- Market Data
- Self-Directed
- Financial Services
description: 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.
created: '2026-06-13'
modified: '2026-10-06'
openapi: openapi/ally-invest-openapi.yml
specificationVersion: '0.23'
apis:
- aid: ally-invest:ally-invest-streaming-api
  name: Ally Invest Streaming Market Data API
  tags:
  - Streaming
  - Real-Time
  - Quotes
  - Market Data
  humanURL: https://www.ally.com/api/invest/documentation/streaming/
  baseURL: https://api.ally.com/v1
  properties:
  - url: https://www.ally.com/api/invest/documentation/streaming/
    type: Documentation
  description: 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 quote updates as market prices change. Supports
    JSON and XML response formats. Requires OAuth 1.0 authentication.
- aid: ally-invest:ally-invest-accounts-api
  name: Ally Invest Accounts API
  description: Account balances, holdings, history, and portfolio data
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-accounts-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
- aid: ally-invest:ally-invest-market-data-api
  name: Ally Invest Market Data API
  description: 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 news search, time-and-sales data, market clock status, and
    top security lists by various criteria. Option chains can be filtered by type, expiration date, and strike price range.
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Market Data
  - Quotes
  - Options
  - News
  - Time and Sales
  - Top Lists
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-market-data-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
- aid: ally-invest:ally-invest-member-api
  name: Ally Invest Member API
  description: 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.
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Member
  - Profiles
  - Identity
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-member-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
  tags_raw:
  - Member
  - Profile
  - Identity
- aid: ally-invest:ally-invest-orders-api
  name: Ally Invest Orders API
  description: 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-variant format. Supports order preview before execution, retrieval
    of open orders, and cancellation of pending orders. Requires OAuth 1.0 authentication with account-level credentials.
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Order
  - Trade
  - FIXML
  - Preview
  - Execution
  tags_raw:
  - Orders
  - Trades
  - FIXML
  - Preview
  - Execution
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-orders-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
- aid: ally-invest:ally-invest-utilities-api
  name: Ally Invest Utilities API
  description: API status and version utilities
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Utilities
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-utilities-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
- aid: ally-invest:ally-invest-watchlists-api
  name: Ally Invest Watchlists API
  description: The Ally Invest Watchlists API allows programmatic creation and management of symbol watchlists associated
    with a member account. Supports listing all watchlists, creating new watchlists, retrieving watchlist details, deleting
    watchlists, and adding or removing ticker symbols from existing watchlists.
  humanURL: https://www.ally.com/api/invest/documentation/getting-started/
  baseURL: https://api.ally.com/v1
  tags:
  - Watchlist
  - Symbols
  - Portfolio Tracking
  tags_raw:
  - Watchlists
  - Symbols
  - Portfolio Tracking
  properties:
  - type: OpenAPI
    url: openapi/ally-invest-watchlists-api-openapi.yml
  - type: Documentation
    url: https://www.ally.com/api/invest/documentation/getting-started/
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/ally-invest/overview
- url: https://www.ally.com/stories/
  type: Blog
- type: AgenticAccess
  url: agentic-access/ally-invest-agentic-access.yml
- type: DomainSecurity
  url: security/ally-invest-domain-security.yml
- type: Authentication
  url: authentication/ally-invest-authentication.yml
- type: OpenAPI
  url: openapi/_original/ally-invest-openapi.yml
- type: Website
  url: https://www.ally.com/invest/
- type: Documentation
  url: https://www.ally.com/api/invest/documentation/getting-started/
- type: GettingStarted
  url: https://www.ally.com/api/invest/documentation/getting-started/
- type: Authentication
  url: https://www.ally.com/api/invest/documentation/getting-started/
- type: RateLimiting
  url: https://www.ally.com/api/invest/documentation/rate-limiting/
- type: AttributionGuidelines
  url: https://www.ally.com/api/invest/documentation/attribution-guidelines/
- type: TermsOfService
  url: https://www.ally.com/content/dam/pdf/invest/api-agreement.pdf
- type: Support
  url: mailto:InvestAPI@ally.com
- type: SDKs
  url: https://pypi.org/project/AllyInvestPy/
  title: AllyInvestPy Python SDK (Community)
- type: SDKs
  url: https://pypi.org/project/pyally/
  title: PyAlly Python3 SDK (Community)
- type: SDKs
  url: https://pkg.go.dev/github.com/jmal1997/ally-api
  title: ally-api Go Bindings (Community)
- type: GitHubOrganization
  url: https://github.com/anthonymorast/AllyInvest.py
- type: Pricing
  url: https://www.ally.com/invest/commissions-and-fees/
- type: SelfDirectedTrading
  url: https://www.ally.com/invest/self-directed-trading/
- type: Plans
  url: plans/ally-invest-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ally-invest-rate-limits.yml
- type: FinOps
  url: finops/ally-invest-finops.yml
- type: Features
  data:
  - name: Commission-Free Trading
    description: No commissions on US stocks and ETFs; $0.50 per options contract
  - name: No Account Minimum
    description: Self-directed cash accounts require no minimum deposit to open
  - name: OAuth 1.0 Authentication
    description: API access secured via OAuth 1.0 with consumer key/secret and OAuth token/secret pairs
  - name: JSON and XML Responses
    description: All REST API endpoints return responses in both JSON and XML formats
  - name: Streaming Market Data
    description: Real-time quote streaming via persistent HTTP connections for subscribed symbols
  - name: FIXML Order Format
    description: Orders submitted in FIXML-variant XML format supporting equities and options
  - name: Order Preview
    description: Preview orders before execution to validate parameters and estimated costs
- type: UseCases
  data:
  - name: Algorithmic Trading
    description: Build automated trading systems that place and manage orders based on market signals
  - name: Portfolio Monitoring
    description: Track account balances, holdings, and performance in real time via API
  - name: Market Data Aggregation
    description: Retrieve real-time and delayed quotes, options chains, and news for analysis
  - name: Watchlist Management
    description: Maintain dynamic symbol watchlists and retrieve quote updates for tracked securities
  - name: Trade Journaling
    description: Pull account history and order records programmatically for trade journaling tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: ally-financial
x-relationship: product

Ally Invest API — frequently asked questions

Does Ally Invest have an API?

Yes. APIs.io lists 7 APIs from Ally Invest, including Ally Invest Streaming Market Data API, Ally Invest Accounts API and Ally Invest Market Data API, and 4 more.

Is there an OpenAPI specification for the Ally Invest API?

Yes. APIs.io indexes 6 OpenAPI specifications for Ally Invest, each linked for download from this page.

How do I authenticate with the Ally Invest API?

Ally Invest uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Ally Invest Authentication.

How much does the Ally Invest API cost?

APIs.io lists 1 pricing plan for Ally Invest, with each plan's price, limits and inclusions under Pricing on this page.

Is the Ally Invest API ready for AI agents?

Ally Invest has a Kin Score of 40.8 out of 100 (developing) and an Agent Readiness score of 23.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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