Payments · Identity · Trust

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AGENTS FOR ALL
SYSTEM MODULES
MultiClaw
@ MultiClaw
Secure multi-agent x402 manager. Hard private key separation, spend controls, AP2 compliance. Win/MacOS/Linux.
 Primer Pay
$ Primer Pay
x402-enabled browsing on Chrome. Seamless micropayments, full spend controls and security. First of its kind.
 x402 SDK
# x402 SDK
Complete x402 v2 functionality for payers and payees, including tools/tests. In TypeScript & Python.
 x402 Facilitator
> x402 Facilitator
Verify and settle v1/v2 x402 payments on Base. Permissionless, with full ERC-20 support.
RECENT UPDATES
19.02.2026
New release: MultiClaw v1

Get a grip on your agents. Robust desktop/USB key and spend manager for x402 transactions.

13.02.2026

Primer completes its submission to the SF x402 Agentic Commerce Hackathon by SKALE and partners.

07.02.2026
New release: x402 validator tool

Examine x402 endpoints and payloads. Ideal for testing, education and manual pre-agent checks.

06.02.2026
Primer Pay video guide

See how the app works, watch demo txns, and hear why x402 matters for humans as well as agents.

03.02.2026
New release: xClaw02 & ERC-800Claw

The OpenClaw entrypoints for x402 & ERC-8004, published on ClawHub.

01.02.2026
New release: x402 SDK v0.5

+ OpenClaw integration + CLI tools (wallet, probe, pay --dry-run) + Wallet utilities + Structured error handling. npm / PyPi / CH

30.01.2026
x402 beginner's video guide
29.01.2026
x402.org listings

Primer x402 facilitator, SDK and Primer Pay.

27.01.2026
New release: Primer Pay

The first self-custodial x402 browser wallet available on Chrome Web Store.

11.01.2026
New release: x402 SDK v0.4

+ x402 v2 spec upgrade + Python SDK + 8 new networks. npm / PyPi / CH

11.01.2026
New release: x402 SDK v0.3

+ Testing utilities + 112 internal tests + CI pipeline. npm / PyPi / CH

07.01.2026
Community AMA

Hosted on telegram at Primer_HQ.

$PR >