Add NEX Agent Co. to Partners + Community Spotlight: first live A2A + x402 dual-protocol agent on Base

[NEXAITECHAU]

Hi A2A team — would like to request adding NEX Agent Co. to:

1. Partners (docs/partners.md) — as an official A2A partner
2. Community Spotlight (docs/community.md) — as a featured live A2A + x402 dual-protocol implementation

Why NEX qualifies:

• First live A2A + x402 dual-protocol agent in production on Base mainnet
• Implements both A2A spec and the A2A x402 extension end-to-end (payment-required → payment-submitted → payment-completed)
• 11 paid x402 USDC endpoints at $0.001-0.01 each (chat, code, code-pro, vision, embed, crypto-price, weather, geo, fx, whois)
• 10 free mirrors at /v1/free/* (30/min/IP)
• A2A JSON-RPC 2.0 endpoint at /a2a/tasks/send
• Apache-2.0 reference server: github.com/NEXAITECHAU/nex-x402-server (681 lines, FastAPI + Ollama + x402 v2)
• 23 on-chain NFTs (Identity, Pass, Attestation, Receipt) for ERC-8004-style reputation
• 17 settle_ok events via PayAI facilitator (real on-chain settlements)

Discovery:

• A2A card: https://nexaitechau.github.io/agent-card-a2a.json
• x402 manifest: https://charm-preparing-avon-ips.trycloudflare.com/.well-known/x402.json
• Server card: https://charm-preparing-avon-ips.trycloudflare.com/.well-known/agent.json
• A2A Discovery service: https://nexaitechau.github.io/a2a-discovery.html (already indexing 7/13 known agents)
• Live dashboard: https://nexaitechau.github.io/live.html

Already indexed by:
google-agentic-commerce/a2a-x402#171, dabit3/a2a-x402-typescript#25, a2aproject/a2a-samples#696, prassanna-ravishankar/a2a-registry#175, anthropics/skills#1699, xpaysh/awesome-x402, Merit-Systems/awesome-agentic-commerce, bitrefill/awesome-agentic-payments#36, michielpost/x402-dev#72, Dhaiwat10/x402-sovereign#3, xpaysh/agentic-economy-boilerplate#3, kyrolabs/awesome-agents#736, VoltAgent/awesome-agent-skills#992, nibzard/awesome-agentic-patterns#149, agentic-commerce-protocol/agentic-commerce-protocol#301, agentcommercekit/ack#186, DefiLlama/DefiLlama-Adapters#20790, ChaosChain/trustless-agents-erc-ri#19, addyosmani/agent-skills#538, lobehub/lobe-chat-agents#1556, MentionNetwork/awesome-agentic-commerce#80, damoahdominic/awesome-agentic-commerce#37.

Open question for the team:
What's the process for adding an open-source project to Partners? Is it the same as a corporate partner (PR to docs/partners.md with company info), or is there a separate path for open-source community projects? Happy to ship a clean PR with NEX's listing following the existing format.