OpenFIGI

OpenFIGI is your entry point to multiple tools for identifying, mapping and requesting a free Financial Instrument Global Identifier (FIGI). OpenFIGI is an open system for identifying instruments globally across all asset classes. Combining the FIGI with additional descriptive meta-data, firms are able to link fragmented proprietary symbologies, fill the gaps that remain to create a data lineage, streamline the trade workflow and reduce operational risk.

OpenFIGI publishes 3 API contracts indexed on the APIs.io network: Filter API, Mapping API, and Search API. Tagged areas include Finance and Instruments.

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

OpenFIGI’s developer surface includes authentication, product news, signup flow, FAQ, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.2/100 thin ▬ flat Agent 26/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Finance Instruments

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 32.2/100 · thin

Contract Quality 10.7 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 2.6 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.2 / 9

Discoverability 4.4 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 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 Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 17.0 — up to +16.6 composite points Ask about this →
Developer Ergonomics scores 23.8 — up to +15.2 composite points Ask about this →
Operational Transparency scores 11.9 — up to +11.5 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/openfigi/apis.yml: open an issue on github.com/api-evangelist/openfigi 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
APIs.guru OpenAPI Directory (API definition directory)	standard	17.2 (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 3

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

OpenFIGI Filter API

The Filter API from OpenFIGI — 1 operation(s) for filter.

OpenFIGI Mapping API

The Mapping API from OpenFIGI — 2 operation(s) for mapping.

OpenFIGI Search API

The Search API from OpenFIGI — 1 operation(s) for search.

Open Collections 4

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

OpenFIGI Filter API

OPEN COLLECTION

OpenFIGI Filter Mapping API

OPEN COLLECTION

OpenFIGI Filter Search API

OPEN COLLECTION

OpenFIGI API

OPEN COLLECTION

OpenFIGI API pricing

Not yet checked against OpenFIGI's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against OpenFIGI's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

OpenFIGI Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

OpenFIGI Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

OpenFIGI Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

OpenFIGI API Rules

68 rules · 66 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

OpenFIGI Authentication

apiKey · 1 scheme

SECURITY

OpenFIGI Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

OpenFIGI Agentic Access

4 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

Signup

Signup

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Contact

Contact

FAQ

FAQ

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 4

The organization behind the API

Website

About

News

Blog

Source (apis.yml)

aid: openfigi
url: https://raw.githubusercontent.com/api-evangelist/openfigi/refs/heads/main/apis.yml
apis:
- aid: openfigi:openfigi-filter-api
  name: OpenFIGI Filter API
  description: The Filter API from OpenFIGI — 1 operation(s) for filter.
  humanURL: https://www.openfigi.com/
  baseURL: https://api.openfigi.com
  tags:
  - Filter
  properties:
  - type: OpenAPI
    url: openapi/openfigi-filter-api-openapi.yml
  - type: Documentation
    url: https://www.openfigi.com/api
  - type: Examples
    url: https://www.openfigi.com/api#examples-on-github
  - type: ErrorCodes
    url: https://www.openfigi.com/api#status-code
- aid: openfigi:openfigi-mapping-api
  name: OpenFIGI Mapping API
  description: The Mapping API from OpenFIGI — 2 operation(s) for mapping.
  humanURL: https://www.openfigi.com/
  baseURL: https://api.openfigi.com
  tags:
  - Mapping
  properties:
  - type: OpenAPI
    url: openapi/openfigi-mapping-api-openapi.yml
  - type: Documentation
    url: https://www.openfigi.com/api
  - type: Examples
    url: https://www.openfigi.com/api#examples-on-github
  - type: ErrorCodes
    url: https://www.openfigi.com/api#status-code
- aid: openfigi:openfigi-search-api
  name: OpenFIGI Search API
  description: The Search API from OpenFIGI — 1 operation(s) for search.
  humanURL: https://www.openfigi.com/
  baseURL: https://api.openfigi.com
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/openfigi-search-api-openapi.yml
  - type: Documentation
    url: https://www.openfigi.com/api
  - type: Examples
    url: https://www.openfigi.com/api#examples-on-github
  - type: ErrorCodes
    url: https://www.openfigi.com/api#status-code
name: OpenFIGI
tags:
- Finance
- Instruments
tags_raw:
- Financial
- Instruments
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: 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: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/openfigi.png
common:
- type: Plans
  url: plans/openfigi-plans-pricing.yml
- type: RateLimits
  url: rate-limits/openfigi-rate-limits.yml
- type: FinOps
  url: finops/openfigi-finops.yml
- type: Website
  url: https://www.openfigi.com/
- type: AgenticAccess
  url: agentic-access/openfigi-agentic-access.yml
- type: DomainSecurity
  url: security/openfigi-domain-security.yml
- type: Authentication
  url: authentication/openfigi-authentication.yml
- type: GitHubOrganization
  url: https://github.com/OpenFIGI
- url: https://www.openfigi.com/about
  type: About
- url: https://www.openfigi.com/about/news
  type: News
- url: https://www.openfigi.com/user/login
  type: Login
- url: https://www.openfigi.com/user/signup
  type: Signup
- url: https://www.openfigi.com/feedback
  type: Contact
- url: https://www.openfigi.com/docs/faqs
  type: FAQ
- url: https://www.openfigi.com/about/news
  type: Blog
created: 2024-09-27 00:00:00+00:00
modified: '2026-05-19'
description: OpenFIGI is your entry point to multiple tools for identifying, mapping and requesting a free Financial Instrument
  Global Identifier (FIGI). OpenFIGI is an open system for identifying instruments globally across all asset classes. Combining
  the FIGI with additional descriptive meta-data, firms are able to link fragmented proprietary symbologies, fill the gaps
  that remain to create a data lineage, streamline the trade workflow and reduce operational risk.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'

OpenFIGI API — frequently asked questions

Does OpenFIGI have an API?

Yes. APIs.io lists 3 APIs from OpenFIGI, including OpenFIGI Filter API, OpenFIGI Mapping API and OpenFIGI Search API.

Is there an OpenAPI specification for the OpenFIGI API?

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

How do I authenticate with the OpenFIGI API?

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

How much does the OpenFIGI API cost?

APIs.io lists 3 pricing plans for OpenFIGI, with each plan's price, limits and inclusions under Pricing on this page.

Is the OpenFIGI API ready for AI agents?

OpenFIGI has a Kin Score of 32.2 out of 100 (thin) and an Agent Readiness score of 26.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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