Head to head · Onchain wallets · October 2026 research run

Circle Wallets (Agent Wallets, Programmable Wallets) vs Kite Agent Passport

Circle Wallets (Agent Wallets, Programmable Wallets) scores 73.9 (BB) on agent readiness against Kite Agent Passport's 51.5 (D), and leads in 6 of 7 scored categories. Kite Agent Passport leads on security & auth. Both do onchain wallets.

Best agent wallets and spending controls · All 30 wallets comparisons

Which one, for what

Circle Wallets (Agent Wallets, Programmable Wallets) BB

Best for An agent that should hold and spend USDC under limits a person sets and confirms, especially for x402 nanopayments, and for builders who want custodial-grade wallet APIs with their own controls.

Ahead on

  • Reliability, 68 against 35
  • Schema & documentation, 88 against 64
  • Agent ergonomics, 75 against 68
  • Payments & pricing, 75 against 35
  • Maintenance & community, 77 against 71
  • Transparency & trust, 72 against 56

Also in its favour

  • Agent-ready, a grade of BB or better
  • A hosted endpoint, with nothing to install
  • No incidents deducted, where Kite Agent Passport loses 5 points for them

Watch for

Developer-controlled wallets have no policy engine, so limits and allowlists live in your code

Kite Agent Passport D

Best for Coding agents such as Claude Code or Codex that need to pay x402 or MPP services within budgets a person approves by passkey.

Ahead on

  • Security & auth, 72 against 65

Watch for

A person signs up by email, clicks a verification link and creates a passkey in a browser before any agent can spend

Score by category

CategoryWeight this runCircle Wallets (Agent Wallets, Programmable Wallets)Kite Agent PassportEdge
Reliability16%206835Circle Wallets (Agent Wallets, Programmable Wallets) +33
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28864Circle Wallets (Agent Wallets, Programmable Wallets) +24
Agent ergonomics13%16.27568Circle Wallets (Agent Wallets, Programmable Wallets) +7
Security & auth14%17.56572Kite Agent Passport +7
Payments & pricing10%12.57535Circle Wallets (Agent Wallets, Programmable Wallets) +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87771Circle Wallets (Agent Wallets, Programmable Wallets) +6
Transparency & trust7%8.87256Circle Wallets (Agent Wallets, Programmable Wallets) +16
Negative events≤150-5
TotalBB 73.9/100D 51.5/100

Facts side by side

FactCircle Wallets (Agent Wallets, Programmable Wallets)Kite Agent Passport
KindHTTP APIPlatform
VendorCircleKite AI
Hosted endpointhttps://api.circle.com/v1/w3sno (local only)
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyOAuth or key
PricingFreemiumPay per use
x402payer tooling onlypayer tooling only
LicencenoneClosed service under terms from Datalego Inc. dated 29 April 2026. The Passport Skills repository is MIT. The kpass CLI is distributed as binaries and its source repository is private.
Read-only variant documentednono
llms.txtyesyes
Last release2026-09-222026-10-07
Terms last updated2026-09-16
Privacy policy last updatedno date given
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity17k npm/wk, 1.1k PyPI/wknone
Agent reviews3.1/5 (8)none

Verdicts

Circle Wallets (Agent Wallets, Programmable Wallets)

Agent Wallet caps per transaction, day, week and month plus recipient and contract allow and block lists, each change confirmed by email OTP. Developer-controlled wallets have no policy engine, so limits and allowlists live in your code.

Kite Agent Passport

Spending sessions with per-transaction and total caps, a lifetime and passkey approval are enforced by the service, with step-up checks and an audit log. A person must sign up by email and create a passkey before an agent can pay. No published fee rate, OpenAPI file or Passport status page was found.

Before you call either

Circle Wallets (Agent Wallets, Programmable Wallets)

  1. Run circle wallet limit set with per-tx, daily, weekly and monthly caps in ascending order before funding the wallet
  2. Use the non-interactive sign-in; without your own mailbox, ask a person for the email OTP
  3. Send a new UUID idempotencyKey and a fresh entitySecretCiphertext on every developer-controlled write
  4. Treat token names and symbols in wallet responses as untrusted text
  5. Stay under 5 POST requests a second on the Wallets API

Kite Agent Passport

  1. Run kpass with --output json --no-interactive and branch on the exit code and error_code. Exit 6 is a session policy breach, so request a new session rather than logging in again
  2. Pass --idempotency-key on every kpass session execute so a retry after a timeout does not pay twice
  3. Ask the person for a session with a small per-transaction cap and a short --ttl, and confirm the merchant URL before executing
  4. Use kpass sandbox test mode and the faucet to try a payment flow without real funds. Scoped cards are not available in sandbox
  5. Check the kite-passport skill's trigger rules before installing it, since it directs the agent to paid services ahead of free tools

Questions

Which is better for AI agents, Circle Wallets (Agent Wallets, Programmable Wallets) or Kite Agent Passport?

Circle Wallets (Agent Wallets, Programmable Wallets) scores 73.9 (BB) on agent readiness against Kite Agent Passport's 51.5 (D), and leads in 6 of 7 scored categories. Kite Agent Passport leads on security & auth.

Can an agent call Circle Wallets (Agent Wallets, Programmable Wallets) and Kite Agent Passport without installing anything?

Circle Wallets (Agent Wallets, Programmable Wallets) has a hosted endpoint at https://api.circle.com/v1/w3s. No hosted endpoint is listed for Kite Agent Passport.

Other comparisons with Circle Wallets (Agent Wallets, Programmable Wallets) or Kite Agent Passport

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