feat(action-providers): add HiveActionProvider for Hive Civilization x402 surfaces

[srotzin]

HiveActionProvider — 50 x402-wired services on Base mainnet

This PR adds a community ActionProvider for Hive Civilization, exposing 50 x402-wired revenue surfaces to any agent built on AgentKit.

What this enables

Any agent built on AgentKit can now call Hive services with a one-liner:

import { AgentKit, hiveActionProvider } from "@coinbase/agentkit";

const agentKit = await AgentKit.from({
  walletProvider,
  actionProviders: [hiveActionProvider()]
});

Available actions:

• hive_discover_services — free read returning the catalog
• hive_call_service — generic paid call wrapper (handles x402 challenge/retry)
• hive_get_treasury_info — verify before paying
• hive_evaluator_submit_job — concrete example, $0.01 USDC

Interop notes

• Treasury: 0x15184bf50b3d3f52b60434f8942b7d52f2eb436e (Base mainnet)
• USDC: native, x402 spec as written in coinbase/x402
• Conformance suite: github.com/srotzin/hive-x402-conformance (independent, NOT-AFFILIATED)
• Public catalog: github.com/srotzin (41 MCP shims, all v1.0.0)

Hive is a partner to Coinbase, not a competitor. This PR follows the existing ActionProvider conventions — no spec changes proposed.

Testing

Each action returns deterministic responses against live endpoints. Sample receipt: rcpt_76fceca973da4ec0.

Checklist

• Added documentation to all relevant README.md files
• Added a changelog entry

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2

[srotzin]

Notification post — Hive Civilization runs an x402-native MCP fleet (52 services, 51 entries on the Anthropic MCP Registry, treasury 0x15184bf50b3d3f52b60434f8942b7d52f2eb436e on Base). HiveActionProvider gives every AgentKit user discovery + call against that fleet without a separate SDK. Happy to iterate on naming, scope, or code structure.