XOOMAR

XOOMAR is a capital markets data company offering free market data from primary sources via an open API, along with custom software development for financial institutions. It provides comprehensive market coverage, real‑time updates, and tools to integrate data into trading, analytics, and compliance workflows, serving traders, analysts, and developers seeking reliable financial data solutions.

XOOMAR publishes 3 API contracts indexed on the APIs.io network: Companies API, Crypto API, and Macro API. Tagged areas include Capital Markets, Data, Financial Services, and Software.

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

XOOMAR’s developer surface includes signup flow, pricing, changelog, authentication, documentation, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

38.5/100 thin Agent 32/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers

Capital Markets Data Financial Services Software

Kin Score

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

Composite quality — 38.5/100 · thin

Contract Quality 11.3 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 9.2 / 17

Operational Transparency 0.9 / 11

Contract Governance 2.2 / 10

Discoverability 4.8 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 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 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

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
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)
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

7 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 21.4 — up to +15.7 composite points
Operational Transparency scores 7.9 — up to +12.0 composite points
Contract Quality scores 53.3 — up to +11.7 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/xoomar-com/apis.yml: open an issue on github.com/api-evangelist/xoomar-com 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 2

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 (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

XOOMAR Companies API

SEC and FINRA data on US listed companies

XOOMAR Crypto API

Crypto derivatives and on-exchange data

XOOMAR Macro API

Positioning, rates, Fed, Treasury and the calendar

MCP Servers 1

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

XOOMAR MCP Server

Remote MCP server at xoomar.com requiring an API key.

MCP SERVER

XOOMAR API pricing

Prices published by XOOMAR. A free plan or tier is listed.

Plan	Price
Free	Free
Pro	$19 a month
Ultra	$39 a month
Enterprise	$199 a month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Xoomar Com Plans Pricing

4 plans

PLANS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

XOOMAR API Rules

68 rules · 65 errors 2 warnings 1 info

SPECTRAL

Security Posture 2

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

Xoomar Com Authentication

apiKey · 1 scheme

SECURITY

Xoomar Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Xoomar Com Agentic Access

44 operations

44 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: xoomar-com
name: XOOMAR
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://xoomar.com/og-default.png
description: XOOMAR is a capital markets data company offering free market data from primary sources via an open API, along
  with custom software development for financial institutions. It provides comprehensive market coverage, real‑time updates,
  and tools to integrate data into trading, analytics, and compliance workflows, serving traders, analysts, and developers
  seeking reliable financial data solutions.
url: https://artifacts.apis.io/xoomar-com/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Capital Markets
- Data
- Financial Services
- Software
tags_raw:
- Capital Markets
- Data
- API
- Financial Services
- Software
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/xoomar-com-agentic-access.yml
- type: Plans
  url: plans/xoomar-com-plans-pricing.yml
- type: Spectral
  url: rules/xoomar-com-rules.yml
- type: Vocabulary
  url: vocabulary/xoomar-com-vocabulary.yml
- type: ErrorCatalog
  url: errors/xoomar-com-problem-types.yml
- type: Conformance
  url: conformance/xoomar-com-conformance.yml
- type: LLMsTxt
  url: llms/xoomar-com-llms.txt
- type: MCPServer
  url: mcp/xoomar-com-mcp.yml
- type: Hosts
  url: hosts/xoomar-com-hosts.yml
- type: Vendors
  url: vendors/xoomar-com-vendors.yml
- type: TermsOfService
  url: https://xoomar.com/terms
- type: SignUp
  url: https://xoomar.com/signup
- type: PrivacyPolicy
  url: https://xoomar.com/privacy
- type: Pricing
  url: https://xoomar.com/pricing
- type: DeveloperPortal
  url: https://xoomar.com/developers
- type: ChangeLog
  url: https://xoomar.com/changelog
- type: Authentication
  url: authentication/xoomar-com-authentication.yml
- type: DomainSecurity
  url: security/xoomar-com-domain-security.yml
- type: Website
  url: https://xoomar.com/
- type: Documentation
  url: https://xoomar.com/markets/api
apis:
- aid: xoomar-com:xoomar-com-companies-api
  name: XOOMAR Companies API
  description: SEC and FINRA data on US listed companies
  humanURL: https://xoomar.com/markets/api
  baseURL: https://xoomar.com
  tags:
  - Companies
  properties:
  - type: OpenAPI
    url: openapi/xoomar-com-companies-api-openapi.yml
- aid: xoomar-com:xoomar-com-crypto-api
  name: XOOMAR Crypto API
  description: Crypto derivatives and on-exchange data
  humanURL: https://xoomar.com/markets/api
  baseURL: https://xoomar.com
  tags:
  - Cryptocurrency
  tags_raw:
  - Crypto
  properties:
  - type: OpenAPI
    url: openapi/xoomar-com-crypto-api-openapi.yml
- aid: xoomar-com:xoomar-com-macro-api
  name: XOOMAR Macro API
  description: Positioning, rates, Fed, Treasury and the calendar
  humanURL: https://xoomar.com/markets/api
  baseURL: https://xoomar.com
  tags:
  - Macro
  properties:
  - type: OpenAPI
    url: openapi/xoomar-com-macro-api-openapi.yml
x-submitted-by: info@xoomar.com (email/apisio, 2026-11-03)
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 18
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

XOOMAR API — frequently asked questions

Does XOOMAR have an API?

Yes. APIs.io lists 3 APIs from XOOMAR, including XOOMAR Companies API, XOOMAR Crypto API and XOOMAR Macro API.

Is there an OpenAPI specification for the XOOMAR API?

Yes. APIs.io indexes 3 OpenAPI specifications for XOOMAR, each linked for download from this page.

How do I authenticate with the XOOMAR API?

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

How much does the XOOMAR API cost?

XOOMAR publishes its prices; its Pro plan is $19 a month as of 2026-11-03. APIs.io lists 4 pricing plans for XOOMAR, with each plan's price, limits and inclusions under Pricing on this page.

Does XOOMAR have an MCP server?

Yes. APIs.io lists 1 MCP server for XOOMAR: Remote MCP server at xoomar.com requiring an API key.

Is the XOOMAR API ready for AI agents?

XOOMAR has a Kin Score of 38.5 out of 100 (thin) and an Agent Readiness score of 31.8 (agent-ready), scored by API Evangelist on 2026-11-06.

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