Falco

Falco is a cloud-native runtime security tool that detects unexpected application behavior and alerts on threats at runtime using eBPF. It is a CNCF graduated project that continuously monitors Linux kernel syscalls and compares them against configurable security rules to detect intrusions, privilege escalation, and other suspicious behaviors.

Falco publishes 5 API contracts indexed on the APIs.io network, including Health API, Rules API, Version API, and 2 more. Tagged areas include Cloud-Native, eBPF, Runtime Security, Security, and Threat Detection.

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

Falco’s developer surface includes documentation, engineering blog, getting-started guide, changelog, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

35.4/100 thin ▬ flat Agent 22/100 agent aware Front door AI 3/6 light Heartbeat 93/100 alive self hosted · Apache-2.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract

Cloud-Native eBPF Runtime Security Security Threat Detection

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Cybersecurity Management

BC-620

Rules

GET /api/v1/rules POST /api/v1/rules/reload

Kin Score

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

Composite quality — 35.4/100 · thin

Contract Quality 8.7 / 16

Developer Ergonomics 4.3 / 13

Access Clarity 1.0 / 13

Operational Transparency 2.9 / 8

Contract Governance 0.8 / 8

Discoverability 4.2 / 7

Regulatory Posture 1.6 / 15

Open Source Surface 6.5 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/falco/"><img src="https://apis.io/badge/falco/card.svg" alt="Falco on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 33.3 — up to +13.3 composite points
Contract Quality scores 53.4 — 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/falco/apis.yml: open an issue on github.com/api-evangelist/falco 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
OpenSSF Best Practices Badge Holders	standard	40.9 (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 5

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

Falco Plugin API

The Falco Plugin API provides a C ABI interface for developing plugins that extend Falco with new event sources and field extractors. Plugins are shared libraries that implement...

Falco gRPC API

The Falco gRPC API provided a streaming interface for consuming Falco alert outputs and querying version information from a running Falco instance. The embedded gRPC server and ...

Falco Health API

Health check endpoints

Falco Rules API

Rules management endpoints

Falco Version API

Version information

Open Collections 4

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

Falco HTTP Health API

OPEN COLLECTION

Falco HTTP Health Rules API

OPEN COLLECTION

Falco HTTP Health Version API

OPEN COLLECTION

Falco HTTP API

OPEN COLLECTION

Falco API pricing

Not yet checked against Falco'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 Falco's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Falco Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Falco Rate Limits

5 limits

RATE LIMITS

Service Levels 1

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

Falco

SLA

FinOps 1

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

Falco Finops

FINOPS

Semantic Vocabularies 1

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

Falco Context

5 classes · 28 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Falco — jsonschema rules

6 rules · 4 warnings 2 info

SPECTRAL

JSON Schema 2

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

Falco Alert Output

9 properties

JSON SCHEMA

Falco Rules File

0 properties

JSON SCHEMA

Security Posture 1

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

Falco Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Falco Agentic Access

4 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

RateLimits

IssueTracker

Releases

Community

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

License

License

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: falco
name: Falco
description: Falco is a cloud-native runtime security tool that detects unexpected application behavior and alerts on threats
  at runtime using eBPF. It is a CNCF graduated project that continuously monitors Linux kernel syscalls and compares them
  against configurable security rules to detect intrusions, privilege escalation, and other suspicious behaviors.
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/falco.png
tags:
- Cloud-Native
- eBPF
- Runtime Security
- Security
- Threat Detection
tags_raw:
- Cloud Native
- eBPF
- Runtime Security
- Security
- Threat Detection
url: https://falco.org
created: '2025-01-01'
modified: '2026-05-19'
position: Consuming
access: 3rd-Party
specificationVersion: '0.23'
apis:
- aid: falco:falco-plugin-api
  name: Falco Plugin API
  description: The Falco Plugin API provides a C ABI interface for developing plugins that extend Falco with new event sources
    and field extractors. Plugins are shared libraries that implement the plugin API and can be loaded at runtime to add support
    for new data sources such as cloud audit logs, container activity, and custom event streams.
  humanURL: https://falco.org/docs/reference/plugins/plugin-api-reference/
  tags:
  - Developer Tools
  - Event Sources
  - Plugins
  tags_raw:
  - Developer Tools
  - Event Sources
  - Plugin
  properties:
  - type: Documentation
    url: https://falco.org/docs/developer-guide/
  - type: Reference
    url: https://falco.org/docs/reference/plugins/plugin-api-reference/
  - type: GitHubRepository
    url: https://github.com/falcosecurity/plugin-sdk-go
- aid: falco:falco-grpc-api
  name: Falco gRPC API
  description: The Falco gRPC API provided a streaming interface for consuming Falco alert outputs and querying version information
    from a running Falco instance. The embedded gRPC server and gRPC Output have been deprecated in Falco 0.43.0 and will
    be removed in a future release.
  humanURL: https://falco.org/docs/developer-guide/grpc/
  tags:
  - Deprecated
  - gRPC
  - Security
  properties:
  - type: Documentation
    url: https://falco.org/docs/developer-guide/grpc/
  - type: Deprecation Notice
    url: https://falco.org/blog/falco-0-43-0/
  - type: GitHubRepository
    url: https://github.com/falcosecurity/falco
- aid: falco:falco-health-api
  name: Falco Health API
  description: Health check endpoints
  humanURL: https://falco.org/docs/
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/falco-health-api-openapi.yml
  - type: Documentation
    url: https://falco.org/docs/
  - type: Reference
    url: https://falco.org/docs/reference/
  - type: JSONSchema
    url: json-schema/falco-alert-output.json
  - type: JSONSchema
    url: json-schema/falco-rules.json
  - type: GitHubRepository
    url: https://github.com/falcosecurity/falco
- aid: falco:falco-rules-api
  name: Falco Rules API
  description: Rules management endpoints
  humanURL: https://falco.org/docs/
  tags:
  - Rules
  properties:
  - type: OpenAPI
    url: openapi/falco-rules-api-openapi.yml
  - type: Documentation
    url: https://falco.org/docs/
  - type: Reference
    url: https://falco.org/docs/reference/
  - type: JSONSchema
    url: json-schema/falco-alert-output.json
  - type: JSONSchema
    url: json-schema/falco-rules.json
  - type: GitHubRepository
    url: https://github.com/falcosecurity/falco
- aid: falco:falco-version-api
  name: Falco Version API
  description: Version information
  humanURL: https://falco.org/docs/
  tags:
  - Version
  properties:
  - type: OpenAPI
    url: openapi/falco-version-api-openapi.yml
  - type: Documentation
    url: https://falco.org/docs/
  - type: Reference
    url: https://falco.org/docs/reference/
  - type: JSONSchema
    url: json-schema/falco-alert-output.json
  - type: JSONSchema
    url: json-schema/falco-rules.json
  - type: GitHubRepository
    url: https://github.com/falcosecurity/falco
common:
- type: Plans
  url: plans/falco-plans-pricing.yml
- type: RateLimits
  url: rate-limits/falco-rate-limits.yml
- type: FinOps
  url: finops/falco-finops.yml
- type: CapabilityMap
  url: capabilities/falco-capability-edges.yml
  name: Falco Business Capability Map
- type: IssueTracker
  url: https://github.com/falcosecurity/plugin-sdk-go/issues
- type: Releases
  url: https://github.com/falcosecurity/plugin-sdk-go/releases
- type: CodeOfConduct
  url: https://github.com/falcosecurity/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/falcosecurity/.github/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/falcosecurity/plugin-sdk-go/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/falco-agentic-access.yml
- type: DomainSecurity
  url: security/falco-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/falco-security-oss
- type: Website
  url: https://falco.org
- type: Documentation
  url: https://falco.org/docs/
- type: Blog
  url: https://falco.org/blog/
- type: Community
  url: https://falco.org/community/
- type: GettingStarted
  url: https://falco.org/docs/getting-started/
- type: ChangeLog
  url: https://falco.org/docs/reference/changelog/
- type: GitHubOrganization
  url: https://github.com/falcosecurity
- type: GitHubRepository
  url: https://github.com/falcosecurity/falco
- type: JSONLD
  url: json-ld/falco-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Falco API — frequently asked questions

Does Falco have an API?

Yes. APIs.io lists 5 APIs from Falco, including Falco Plugin API, Falco gRPC API and Falco Health API, and 2 more.

Is there an OpenAPI specification for the Falco API?

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

How much does the Falco API cost?

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

Is the Falco API ready for AI agents?

Falco has a Kin Score of 35.4 out of 100 (thin) and an Agent Readiness score of 22.1 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/falco"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/falco/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/falco/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.