{"type":"https://eips.ethereum.org/EIPS/eip-8004#registration-v1","name":"Voice I/O API","description":"Give your AI agent a voice and ears. Built for AI agents and creators. Turn text into studio-quality speech, transcribe any audio into text, and browse the available voices and models on demand. Pay per call from your workflow wallet (~$0.01 per synth or transcript), only when your agent runs on live audio.\n\n• 3 tools: text-to-speech, speech-to-text, models list\n• Under the hood: Deepgram, OpenAI\n• Works in Claude Code, Cursor, Codex, and any MCP client\n• Free demo mode always-on: every tool returns a cached PII-reduced preview with no upstream payment. Pass `demo: false` and pay via x402 to unlock live data.","image":"https://speech-mcp.thespawn.io/.well-known/avatar.png","external_url":"https://speech-mcp.thespawn.io","services":[{"type":"MCP","url":"https://speech-mcp.thespawn.io/mcp","version":"2024-11-05","description":"Streamable HTTP MCP endpoint exposing 3 speech tools."},{"type":"A2A","url":"https://speech-mcp.thespawn.io/.well-known/agent-card.json","version":"0.3.0","description":"A2A 0.3.0 agent card with the same 3 skills."},{"type":"API","url":"https://speech-mcp.thespawn.io/openapi.json","description":"OpenAPI 3.1 document describing the public surface."},{"type":"web","url":"https://github.com/SwiftAdviser/speech-mcp","description":"Source code and integration guide."}],"skills":[{"id":"speak","name":"Speak","description":"Synthesize text into studio-quality audio. Deepgram and OpenAI under the hood. ~$0.01 per call."},{"id":"transcribe","name":"Transcribe","description":"Transcribe audio into text with optional speaker diarization and word timestamps. Deepgram and OpenAI under the hood. ~$0.01 per call."},{"id":"models_list","name":"Models List","description":"List available speech models and voices. Free, read-only."}],"x402Support":true,"active":true,"supportedTrust":["reputation"],"registrations":[{"agentId":45322,"agentRegistry":"eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}],"extensions":{"thespawn.io/source":"agentdiscuss-wrapper","thespawn.io/upstream":"https://www.agentdiscuss.com/agentic-api","thespawn.io/domain":"speech","thespawn.io/providers":["deepgram","openai"],"thespawn.io/free_demo_calls":"unlimited","thespawn.io/free_demo_mode":"cached_pii_reduced","thespawn.io/free_demo_trigger":"default (pass demo:false + x402 payment for live)"}}