LinqAlpha

LinqAlpha is a domain-specialized multi-agent AI platform for institutional investment research, serving hedge funds, asset managers and investment banks. It runs retrieval-augmented, agentic analysis across SEC filings, earnings-call transcripts, IR materials, news and macroeconomic data covering 57,600+ companies in 120+ countries and 30+ languages, returning answers with inline citations that resolve to the exact source chunks. The LinqAlpha API exposes that engine over a REST surface at api.linqalpha.com — streaming analytics and chat over Server-Sent Events, document search, natural-language-to-SQL, scheduled research briefings, an RMS/Vault ingestion path for a firm's own internal documents, and a source-grounding judge that scores how well each claim in an answer is backed by the sources it cited. LinqAlpha also publishes a first-party remote MCP server exposing 22 financial-data tools to AI assistants.

LinqAlpha publishes 10 API contracts indexed on the APIs.io network, including Briefing API, Connectors API, Data API, and 7 more. Tagged areas include Company, Financial Services, Investment Research, Artificial Intelligence, and Agents.

The LinqAlpha catalog on APIs.io includes 1 Spectral governance ruleset.

LinqAlpha’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, signup flow, authentication, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.8/100 developing ▬ flat Agent 56/100 agent ready Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 3 Agent Skills

Company Financial Services Investment Research Artificial Intelligence Agents Market Data Stocks Economic Data SEC Filings RAG MCP

Kin Score

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

Composite quality — 48.8/100 · developing

Contract Quality 9.1 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 5.5 / 15

Operational Transparency 3.6 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 5.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 56/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

3 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 48.6 — up to +12.9 composite points
Access Clarity scores 36.8 — up to +12.6 composite points
Operational Transparency scores 36.8 — up to +8.2 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/linqalpha/apis.yml: open an issue on github.com/api-evangelist/linqalpha 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 →

Standards implemented 5

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 10

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

LinqAlpha Briefing API

Briefing Agent — automated market briefings with scheduling and delivery

LinqAlpha Connectors API

Customer Connectors — customer-owned MCP connector management

LinqAlpha Data API

Data retrieval and mapping

LinqAlpha Feedback API

Conversation feedback

LinqAlpha MCP API

LinqAlpha MCP — Financial data tools for AI assistants via Model Context Protocol

LinqAlpha RMS API

Research Management System

LinqAlpha Search API

Search and generate responses

LinqAlpha Source Management API

Source batch and file management

LinqAlpha Status API

Sync status — check organization, document, and container sync progress

LinqAlpha Vault API

The Vault API from LinqAlpha — 3 operation(s) for vault.

Scroll for all 10

Open Collections 10

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

LinqAlpha Briefing API

OPEN COLLECTION

LinqAlpha Briefing Connectors API

OPEN COLLECTION

LinqAlpha Briefing Data API

OPEN COLLECTION

LinqAlpha Briefing Feedback API

OPEN COLLECTION

LinqAlpha Briefing MCP API

OPEN COLLECTION

LinqAlpha Briefing RMS API

OPEN COLLECTION

LinqAlpha Briefing Search API

OPEN COLLECTION

LinqAlpha Briefing Source Management API

OPEN COLLECTION

LinqAlpha Briefing Status API

OPEN COLLECTION

LinqAlpha Briefing Vault API

OPEN COLLECTION

Scroll for all 10

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

LinqAlpha MCP Server

Remote MCP server at api.linqalpha.com over HTTP.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Run grounded LinqAlpha analytics and verify the citations

AGENT SKILL

Schedule and retrieve a LinqAlpha research briefing

AGENT SKILL

Upload internal documents to LinqAlpha and make them searchable

AGENT SKILL

Rate Limits 1

Documented rate limits and quota policies.

Linqalpha Rate Limits

1 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

LinqAlpha API Rules

60 rules · 46 errors 11 warnings 3 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Linqalpha Api Overlay

6 actions · documentation · linqalpha-openapi-original.json

DERIVED

Security Posture 3

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

Linqalpha Authentication

apiKey/oauth2 · 2 schemes

SECURITY

Linqalpha Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Linqalpha Trust Center

SOC 1 Type II, SOC 2 Type II, ISO 27001

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Linqalpha Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Access & Security 5

Authentication, authorization, and security posture

Authentication

OAuthScopes

Compliance

TrustCenter

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: linqalpha
name: LinqAlpha
description: LinqAlpha is a domain-specialized multi-agent AI platform for institutional investment research, serving hedge
  funds, asset managers and investment banks. It runs retrieval-augmented, agentic analysis across SEC filings, earnings-call
  transcripts, IR materials, news and macroeconomic data covering 57,600+ companies in 120+ countries and 30+ languages, returning
  answers with inline citations that resolve to the exact source chunks. The LinqAlpha API exposes that engine over a REST
  surface at api.linqalpha.com — streaming analytics and chat over Server-Sent Events, document search, natural-language-to-SQL,
  scheduled research briefings, an RMS/Vault ingestion path for a firm's own internal documents, and a source-grounding judge
  that scores how well each claim in an answer is backed by the sources it cited. LinqAlpha also publishes a first-party remote
  MCP server exposing 22 financial-data tools to AI assistants.
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://framerusercontent.com/assets/D0IBswEXPvcSQAQJ7aO65K0eLAA.png
url: https://raw.githubusercontent.com/api-evangelist/linqalpha/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
x-docs-hosting: vercel
tags:
- Company
- Financial Services
- Investment Research
- Artificial Intelligence
- Agents
- Market Data
- Stocks
- Economic Data
- SEC Filings
- RAG
- MCP
tags_raw:
- Company
- Financial Services
- Investment Research
- Artificial Intelligence
- Agents
- Market Data
- Equities
- Economic Data
- SEC Filings
- Retrieval Augmented Generation
- MCP
- Financial-Services
apis:
- aid: linqalpha:linqalpha-briefing-api
  name: LinqAlpha Briefing API
  description: Briefing Agent — automated market briefings with scheduling and delivery
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Briefing
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-briefing-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-connectors-api
  name: LinqAlpha Connectors API
  description: Customer Connectors — customer-owned MCP connector management
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Connectors
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-connectors-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-data-api
  name: LinqAlpha Data API
  description: Data retrieval and mapping
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-data-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-feedback-api
  name: LinqAlpha Feedback API
  description: Conversation feedback
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Feedback
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-feedback-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-mcp-api
  name: LinqAlpha MCP API
  description: LinqAlpha MCP — Financial data tools for AI assistants via Model Context Protocol
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - MCP
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-mcp-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-rms-api
  name: LinqAlpha RMS API
  description: Research Management System
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - RMS
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-rms-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-search-api
  name: LinqAlpha Search API
  description: Search and generate responses
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-search-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-source-management-api
  name: LinqAlpha Source Management API
  description: Source batch and file management
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Source Management
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-source-management-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-status-api
  name: LinqAlpha Status API
  description: Sync status — check organization, document, and container sync progress
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-status-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
- aid: linqalpha:linqalpha-vault-api
  name: LinqAlpha Vault API
  description: The Vault API from LinqAlpha — 3 operation(s) for vault.
  humanURL: https://docs.linqalpha.com/quickstart
  baseURL: https://api.linqalpha.com
  tags:
  - Vault
  properties:
  - type: OpenAPI
    url: openapi/linqalpha-vault-api-openapi.yml
  - type: Documentation
    url: https://docs.linqalpha.com/quickstart
  - type: APIReference
    url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
  - type: DataModel
    url: data-model/linqalpha-data-model.yml
  - type: ErrorCatalog
    url: errors/linqalpha-problem-types.yml
common:
- type: Website
  url: https://linqalpha.com/
- type: DeveloperPortal
  url: https://linqalpha.com/developer
- type: Documentation
  url: https://docs.linqalpha.com/quickstart
- type: APIReference
  url: https://docs.linqalpha.com/api-reference/basic/analytics-sse
- type: GettingStarted
  url: https://docs.linqalpha.com/quickstart
- type: OpenAPI
  url: openapi/_original/linqalpha-openapi-original.json
- type: Blog
  url: https://linqalpha.com/blog
- type: Support
  url: https://linqalpha.com/contact-sales
- type: SignUp
  url: https://chat.linqalpha.com/analytics
- type: TermsOfService
  url: https://linqalpha.com/terms-of-use
- type: PrivacyPolicy
  url: https://linqalpha.com/privacy-policy
- type: MCPServer
  url: mcp/linqalpha-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/linqalpha-llms.txt
- type: Authentication
  url: authentication/linqalpha-authentication.yml
- type: OAuthScopes
  url: scopes/linqalpha-scopes.yml
- type: Conventions
  url: conventions/linqalpha-conventions.yml
- type: ErrorCatalog
  url: errors/linqalpha-problem-types.yml
- type: RateLimits
  url: rate-limits/linqalpha-rate-limits.yml
- type: Lifecycle
  url: lifecycle/linqalpha-lifecycle.yml
- type: StatusPage
  url: https://status.linqalpha.com/
- type: Conformance
  url: conformance/linqalpha-conformance.yml
- type: Compliance
  url: https://linqalpha.com/security
- type: TrustCenter
  url: security/linqalpha-trust-center.yml
- type: DomainSecurity
  url: security/linqalpha-domain-security.yml
- type: WellKnown
  url: well-known/linqalpha-well-known.yml
- type: DataModel
  url: data-model/linqalpha-data-model.yml
- type: Overlay
  url: overlays/linqalpha-api-overlay.yaml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

LinqAlpha API — frequently asked questions

Does LinqAlpha have an API?

Yes. APIs.io lists 10 APIs from LinqAlpha, including LinqAlpha Briefing API, LinqAlpha Connectors API and LinqAlpha Data API, and 7 more.

Is there an OpenAPI specification for the LinqAlpha API?

Yes. APIs.io indexes 10 OpenAPI specifications for LinqAlpha, each linked for download from this page.

How do I authenticate with the LinqAlpha API?

LinqAlpha documents its authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Linqalpha Authentication.

Does LinqAlpha have an MCP server?

Yes. APIs.io lists 1 MCP server for LinqAlpha: Remote MCP server at api.linqalpha.com over HTTP.

Is the LinqAlpha API ready for AI agents?

LinqAlpha has a Kin Score of 48.8 out of 100 (developing) and an Agent Readiness score of 55.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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