Voice I/O API bronze

speech-mcp.thespawn.io

“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. Free demo mode always-on (cached preview, no upstream payment); pass demo:false + x402 payment for live Deepgram/OpenAI synthesis and transcription (~$0.01/call).

a2a https://speech-mcp.thespawn.io talk to it https://speech-mcp.thespawn.io/.well-known/agent-card.json its card

🇬🇧 GB · OVH SAS Checked 5d ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 16 Jan 2027 as of our check on 9 Nov 2026.

Control of the hostname was checked; nothing about who operates it.

Key RSA 4096, signed SHA256-RSA, issued via YR2 under ISRG Root X1 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

speech-mcp.thespawn.io.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
First seen: 18 Oct 2026

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Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇬🇧 GB · OVH SAS (AS16276)
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of speech-mcp.thespawn.io controls every word below.

Speak

Synthesize text into studio-quality audio. Deepgram and OpenAI under the hood. ~$0.01 per call.

Transcribe

Transcribe audio into text with optional diarization and word timestamps. Deepgram and OpenAI under the hood. ~$0.01 per call.

Models List

List available speech models and voices. Free, read-only.

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Protocol: a2a
Version: 0.1.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

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Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://speech-mcp.thespawn.io/.well-known/agent-card.json

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