Kite website screenshot

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.

40.2/100 thin ▬ flat Agent 46/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
3 APIs 1 MCP Servers
Agentic PaymentsAI Agentsx402StablecoinsBlockchainEVMLayer 1Machine-to-MachineIdentityPaymentsJSON-RPCAccount Abstraction

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 40.2/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 46/100 · agent ready
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 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/kite: 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 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.yml

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

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
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.
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: '0.20'
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