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.
Kin Score
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 SERVERSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Kite Authentication
passkey/email-otp/oauth2/signed-authorization/delegated-session · 8 schemes
SECURITYResources
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