Kite

Kite (gokite.ai, formerly Zettablock) builds agentic payment infrastructure for the machine-to-machine economy. Kite Agent Passport gives autonomous AI agents their own identity, a funded wallet, user-set spending rules, delegated payment authority, and verifiable on-chain receipts, driven from a coding agent through the kpass and ksearch CLIs and a set of published Passport agent skills. Kite also operates Kite Chain, an EVM-compatible Avalanche-subnet Layer 1 (mainnet chain ID 2366, testnet 2368) with public HTTPS and WSS JSON-RPC endpoints, a stablecoin gasless transfer relayer built on EIP-3009 signed authorizations, and an x402 HTTP-402 payment surface with support for the Stripe/Tempo Machine Payments Protocol (MPP). Kite raised an $18M Series A led by PayPal Ventures and General Catalyst in September 2025.

Kite publishes 3 APIs on the APIs.io network. Tagged areas include Agentic Payments, AI Agents, x402, Stablecoins, and Blockchain.

Kite’s developer surface includes documentation, API reference, getting-started guide, signup flow, CLI, changelog, authentication, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.3/100 thin ▬ flat Agent 16/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

3 APIs 1 MCP Servers

Agentic Payments AI Agents x402 Stablecoins Blockchain EVM Layer 1Machine-to-MachineIdentity Payments JSON-RPC Account Abstraction

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 34.3/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 3.6 / 17

Operational Transparency 3.8 / 11

Contract Governance 1.9 / 10

Discoverability 6.9 / 9

Regulatory Posture 5.9 / 15

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 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 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

Regulatory Posture applies to this provider. Its tags matched the Payments 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/.

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 github.com/api-evangelist/kite: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

Kite Chain JSON-RPC (Mainnet)

EVM-compatible JSON-RPC interface for Kite Chain mainnet (chain ID 2366, native token KITE), available over HTTPS and WSS from a global endpoint plus Virginia, Tokyo, and Irelan...

Kite Chain JSON-RPC (Testnet)

EVM-compatible JSON-RPC interface for Kite Chain testnet (chain ID 2368), paired with a public faucet and the testnet Kitescan block explorer for development and integration tes...

Kite Stablecoin Gasless Transfer API

REST relayer that executes stablecoin transfers on behalf of users who hold no native gas token, authorized off-chain with EIP-3009 signed authorizations. GET /supported_tokens ...

MCP Servers 1

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

Kite MCP Server

MCP SERVER

Security Posture 2

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

Kite Authentication

passkey/email-otp/oauth2/signed-authorization/delegated-session · 8 schemes

SECURITY

Kite Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

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

LLMsTxt

MCPServer

AgentSkill

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

Idempotency

ErrorCatalog

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

CLI

Packages

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

SecurityOverview

SecurityOverview

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Whitepaper

Whitepaper

Source (apis.yml)

aid: kite
name: Kite
description: Kite (gokite.ai, formerly Zettablock) builds agentic payment infrastructure for the machine-to-machine economy.
  Kite Agent Passport gives autonomous AI agents their own identity, a funded wallet, user-set spending rules, delegated payment
  authority, and verifiable on-chain receipts, driven from a coding agent through the kpass and ksearch CLIs and a set of
  published Passport agent skills. Kite also operates Kite Chain, an EVM-compatible Avalanche-subnet Layer 1 (mainnet chain
  ID 2366, testnet 2368) with public HTTPS and WSS JSON-RPC endpoints, a stablecoin gasless transfer relayer built on EIP-3009
  signed authorizations, and an x402 HTTP-402 payment surface with support for the Stripe/Tempo Machine Payments Protocol
  (MPP). Kite raised an $18M Series A led by PayPal Ventures and General Catalyst in September 2025.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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://gokite.ai/preview-newkiteai.png
url: https://raw.githubusercontent.com/api-evangelist/kite/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Agentic Payments
- AI Agents
- x402
- Stablecoins
- Blockchain
- EVM
- Layer 1
- Machine-to-Machine
- Identity
- Payments
- JSON-RPC
- Account Abstraction
apis:
- aid: kite:kite-chain-mainnet
  name: Kite Chain JSON-RPC (Mainnet)
  description: EVM-compatible JSON-RPC interface for Kite Chain mainnet (chain ID 2366, native token KITE), available over
    HTTPS and WSS from a global endpoint plus Virginia, Tokyo, and Ireland regional endpoints.
  humanURL: https://docs.gokite.ai/kite-chain/1-getting-started/network-information
  baseURL: https://rpc.gokite.ai/
  tags:
  - JSON-RPC
  - EVM
  - Blockchain
  - Mainnet
  properties:
  - type: Documentation
    url: https://docs.gokite.ai/kite-chain/1-getting-started
  - type: BlockExplorer
    url: https://kitescan.ai/
- aid: kite:kite-chain-testnet
  name: Kite Chain JSON-RPC (Testnet)
  description: EVM-compatible JSON-RPC interface for Kite Chain testnet (chain ID 2368), paired with a public faucet and the
    testnet Kitescan block explorer for development and integration testing.
  humanURL: https://docs.gokite.ai/kite-chain/1-getting-started/network-information
  baseURL: https://rpc-testnet.gokite.ai/
  tags:
  - JSON-RPC
  - EVM
  - Blockchain
  - Testnet
  properties:
  - type: Documentation
    url: https://docs.gokite.ai/kite-chain/1-getting-started/network-information
  - type: Sandbox
    url: https://faucet.gokite.ai
  - type: BlockExplorer
    url: https://testnet.kitescan.ai/
- aid: kite:kite-gasless-transfer
  name: Kite Stablecoin Gasless Transfer API
  description: REST relayer that executes stablecoin transfers on behalf of users who hold no native gas token, authorized
    off-chain with EIP-3009 signed authorizations. GET /supported_tokens lists the tokens enabled per network with their EIP-712
    domain parameters and minimum transfer amounts; POST /testnet and POST /mainnet submit a signed transfer authorization
    and return the resulting transaction hash.
  humanURL: https://docs.gokite.ai/kite-chain/9-gasless-integration
  baseURL: https://gasless.gokite.ai
  tags:
  - Stablecoins
  - Gasless
  - EIP-3009
  - Payments
  - REST
  properties:
  - type: Documentation
    url: https://docs.gokite.ai/kite-chain/9-gasless-integration
  - type: Design
    url: https://docs.gokite.ai/kite-chain/8-kite-stablecoin/stablecoin-gasless-transfer
common:
- type: Website
  url: https://gokite.ai/
- type: DeveloperPortal
  url: https://docs.gokite.ai/
- type: Documentation
  url: https://docs.gokite.ai/
- type: APIReference
  url: https://docs.gokite.ai/kite-chain/9-gasless-integration
- type: GettingStarted
  url: https://docs.gokite.ai/get-started
- type: GitHubOrganization
  url: https://github.com/gokite-ai
- type: TermsOfService
  url: https://gokite.ai/terms
- type: PrivacyPolicy
  url: https://gokite.ai/privacy
- type: SignUp
  url: https://agentpassport.ai/
- type: StatusPage
  url: https://status.gokite.ai/
- type: Whitepaper
  url: https://gokite.ai/kite-whitepaper
- type: LLMsTxt
  url: llms/kite-llms.txt
- type: MCPServer
  url: mcp/kite-mcp.yml
- type: CLI
  url: cli/kite-cli.yml
- type: Packages
  url: packages/kite-packages.yml
- type: SDKs
  url: packages/kite-packages.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ChangeLog
  url: changelog/kite-changelog.yml
- type: Lifecycle
  url: lifecycle/kite-lifecycle.yml
- type: Conventions
  url: conventions/kite-conventions.yml
- type: Idempotency
  url: conventions/kite-conventions.yml
- type: Authentication
  url: authentication/kite-authentication.yml
- type: ErrorCatalog
  url: errors/kite-problem-types.yml
- type: Conformance
  url: conformance/kite-conformance.yml
- type: Sandbox
  url: sandbox/kite-sandbox.yml
- type: WellKnown
  url: well-known/kite-well-known.yml
- type: DomainSecurity
  url: security/kite-domain-security.yml
- type: SecurityOverview
  url: https://docs.gokite.ai/kite-chain/6-reference
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

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