GPT55 Model Gateway A2A Agent

Agent2Agent surface: an agent card served at https://gpt55.558686.xyz/.well-known/agent-card.json (and identically at the legacy /.well-known/agent.json) - name "GPT55 Model Gateway", version 1.0.0, protocolVersion "1.0", preferredTransport JSONRPC, url https://gpt55.558686.xyz/a2a, provider {gpt55-token-gateway, https://gpt55.558686.xyz}, capabilities {streaming false, tools true, paid true}, five skills (chat completions, translate, x402 buyer shortlist, wallet signing safety pack, x402 MCP integration kit), each priced in USDC, authentication [{schemes: [x402]}]. POST https://gpt55.558686.xyz/a2a answers JSON-RPC 2.0 (-32601 for an unknown method); message/send was not exercised because every skill is paid. Listed on a2aregistry.org under author gpt55-token-gateway, which is where this record was harvested from.

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API entry from apis.yml

apis.yml Raw ↑
aid: 558686-xyz:gpt55-a2a-agent
name: GPT55 Model Gateway A2A Agent
description: 'Agent2Agent surface: an agent card served at https://gpt55.558686.xyz/.well-known/agent-card.json
  (and identically at the legacy /.well-known/agent.json) - name "GPT55 Model Gateway", version 1.0.0,
  protocolVersion "1.0", preferredTransport JSONRPC, url https://gpt55.558686.xyz/a2a, provider {gpt55-token-gateway,
  https://gpt55.558686.xyz}, capabilities {streaming false, tools true, paid true}, five skills (chat
  completions, translate, x402 buyer shortlist, wallet signing safety pack, x402 MCP integration kit),
  each priced in USDC, authentication [{schemes: [x402]}]. POST https://gpt55.558686.xyz/a2a answers JSON-RPC
  2.0 (-32601 for an unknown method); message/send was not exercised because every skill is paid. Listed
  on a2aregistry.org under author gpt55-token-gateway, which is where this record was harvested from.'
humanURL: https://gpt55.558686.xyz/llms.txt
baseURL: https://gpt55.558686.xyz/a2a
tags:
- A2A
- x402
- AI Agents
properties:
- type: AgentCard
  url: a2a/558686-xyz-a2a.yml
- type: AgentCard
  name: A2A Agent Card (provider-hosted)
  url: https://gpt55.558686.xyz/.well-known/agent-card.json