Skyfire

Skyfire is the open identity and payments layer for AI agents. It lets AI agents securely create accounts, verify a real-world identity (Know Your Agent, KYA), and autonomously pay for digital services using token-based authentication and stablecoin settlement. Developers use Skyfire to monetize APIs, tools, MCP servers, and content directly to agents. The platform issues three signed, interoperable KYAPay token types — kya (identity), pay (payment), and kya-pay (combined) — that buyer agents present to seller services over a simple REST API and a hosted MCP server. Sellers validate and charge tokens, discover services, and manage seller-service lifecycles, while enterprises manage users and agents through admin APIs. Skyfire is backed by DCVC, Lightspeed Venture Partners, and Trinity Ventures.

Skyfire publishes 1 API on the APIs.io network. Tagged areas include Company, AI Agents, Agent Payments, Identity, and Payments.

Skyfire’s developer surface includes documentation, API reference, getting-started guide, engineering blog, signup flow, support, authentication, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.1/100 thin ▬ flat Agent 38/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

1 APIs 1 MCP Servers

CompanyAI AgentsAgent PaymentsIdentityPaymentsAuthenticationStablecoinMCPAgentic CommerceKnow Your Agent

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 36.1/100 · thin

Contract Quality 0.0 / 25

Developer Ergonomics 16.1 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 38/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/skyfire: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Skyfire API

REST API for AI-agent identity and payments. Buyer agents create kya, pay, and kya-pay tokens; seller agents introspect and charge tokens and manage seller services; enterprises...

MCP Servers 1

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

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conformance

Lifecycle

Conventions

Components

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

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

Source (apis.yml)

aid: skyfire
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/skyfire.png
name: Skyfire
description: Skyfire is the open identity and payments layer for AI agents. It lets AI agents securely create accounts, verify
  a real-world identity (Know Your Agent, KYA), and autonomously pay for digital services using token-based authentication
  and stablecoin settlement. Developers use Skyfire to monetize APIs, tools, MCP servers, and content directly to agents.
  The platform issues three signed, interoperable KYAPay token types — kya (identity), pay (payment), and kya-pay (combined)
  — that buyer agents present to seller services over a simple REST API and a hosted MCP server. Sellers validate and charge
  tokens, discover services, and manage seller-service lifecycles, while enterprises manage users and agents through admin
  APIs. Skyfire is backed by DCVC, Lightspeed Venture Partners, and Trinity Ventures.
url: https://raw.githubusercontent.com/api-evangelist/skyfire/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- dcvc
- lightspeed-venture-partners
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- AI Agents
- Agent Payments
- Identity
- Payments
- Authentication
- Stablecoin
- MCP
- Agentic Commerce
- Know Your Agent
apis:
- name: Skyfire API
  description: REST API for AI-agent identity and payments. Buyer agents create kya, pay, and kya-pay tokens; seller agents
    introspect and charge tokens and manage seller services; enterprises manage users. Authenticated with a single skyfire-api-key
    header (role-specific keys).
  humanURL: https://docs.skyfire.xyz/reference/skyfire-apis
  baseURL: https://api.skyfire.xyz
  tags:
  - Agent Payments
  - Identity
  - Tokens
  properties:
  - type: Documentation
    url: https://docs.skyfire.xyz/docs/developer-documentation
  - type: APIReference
    url: https://docs.skyfire.xyz/reference/skyfire-apis
  - type: Authentication
    url: authentication/skyfire-authentication.yml
  - type: MCPServer
    url: mcp/skyfire-mcp.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://skyfire.xyz
- type: DeveloperPortal
  url: https://docs.skyfire.xyz
- type: Documentation
  url: https://docs.skyfire.xyz/docs/developer-documentation
- type: APIReference
  url: https://docs.skyfire.xyz/reference/skyfire-apis
- type: GettingStarted
  url: https://docs.skyfire.xyz/docs/quickstart
- type: Blog
  url: https://skyfire.xyz/blog
- type: SignUp
  url: https://app.skyfire.xyz
- type: Login
  url: https://app.skyfire.xyz
- type: Support
  url: mailto:support@skyfire.xyz
- type: TermsOfService
  url: https://skyfire.xyz/terms
- type: PrivacyPolicy
  url: https://skyfire.xyz/privacy
- type: GitHubOrganization
  url: https://github.com/skyfire-xyz
- type: Authentication
  url: authentication/skyfire-authentication.yml
- type: MCPServer
  url: mcp/skyfire-mcp.yml
- type: LLMsTxt
  url: llms/skyfire-llms.txt
- type: Packages
  url: packages/skyfire-packages.yml
- type: SDKs
  url: packages/skyfire-packages.yml
- type: WellKnown
  url: well-known/skyfire-well-known.yml
- type: ErrorCatalog
  url: errors/skyfire-error-codes.yml
- type: Conformance
  url: conformance/skyfire-conformance.yml
- type: Lifecycle
  url: lifecycle/skyfire-lifecycle.yml
- type: Conventions
  url: conventions/skyfire-conventions.yml
- type: Sandbox
  url: sandbox/skyfire-sandbox.yml
- type: Components
  url: components/skyfire-components.yml
- type: DataModel
  url: data-model/skyfire-data-model.yml
- type: DomainSecurity
  url: security/skyfire-domain-security.yml
- type: AgentSkill
  url: skills/skyfire-skyfire.md
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1