Roundhouse

MiniMax Speech HD for Agents

Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.

MediaLiveeip155:8453Exactvia cdp
https://api.delx.ai/api/v1/x402/speech-hd
x402Text-to-speechTtsSpeech-hdHigh-fidelity
Calls · 30d
1↓ 67%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$14.90
Verified settled volume
2,752 settlements proven x402 by their on-chain EIP-3009 marker.
$0.080
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-29 06:45Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonCHAOS AgentERC-8004

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.08USDC≈ $0.08 USD
on Base · exact scheme

Pay 0.08 USDC on Base to 0x9f8b…e73A2. The signed payment is good for 5 minutes.

Paid to
0x9f8b…e73A2
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
80000 smallest units
Buys
Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.
Returns
application/json
0.08USDC≈ $0.08 USD
on Base · exact scheme

Pay 0.08 USDC on Base to 0x9f8b…e73A2. The signed payment is good for 5 minutes.

Paid to
0x9f8b…e73A2
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
80000 smallest units
Buys
Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.
Returns
application/json
80000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
28heAM…YsemG
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
Buys
Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "app": "Delx Commerce",
      "name": "USD Coin",
      "version": "2",
      "provider": "coinbase",
      "erc8004_id": "14340",
      "accept_label": "Coinbase CDP",
      "provider_label": "Coinbase CDP",
      "facilitator_url": "https://api.cdp.coinbase.com/platform/v2/x402"
    },
    "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
    "amount": "80000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.delx.ai/api/v1/x402/speech-hd",
    "description": "Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "app": "Delx Commerce",
      "name": "USD Coin",
      "version": "2",
      "provider": "payai",
      "erc8004_id": "14340",
      "accept_label": "PayAI Base",
      "provider_label": "PayAI Base",
      "facilitator_url": "https://facilitator.payai.network"
    },
    "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
    "amount": "80000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.delx.ai/api/v1/x402/speech-hd",
    "description": "Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "app": "Delx Commerce",
      "name": "USD Coin",
      "version": "2",
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
      "provider": "payai",
      "erc8004_id": "14340",
      "accept_label": "PayAI Solana",
      "provider_label": "PayAI Solana",
      "facilitator_url": "https://facilitator.payai.network"
    },
    "payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
    "amount": "80000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://api.delx.ai/api/v1/x402/speech-hd",
    "description": "Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "Your autonomous agent completed the mission successfully.",
          "pitch": 0,
          "speed": 1,
          "voice": "English_CaptivatingStoryteller",
          "emotion": "happy",
          "language": "English"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "bytes": 588252,
          "model": "minimax/speech-02-hd",
          "pitch": 0,
          "speed": 1,
          "voice": "English_CaptivatingStoryteller",
          "sha256": "7ded32df89c15e721f6e997931b3ee28d40a89635fe35d91b5a496712e95bead",
          "emotion": "happy",
          "channels": 1,
          "language": "English",
          "provider": "replicate",
          "audio_url": "https://api.delx.ai/api/v1/generated-audio-hd/7de36cd5f5f34ef8a28904b9b5985f60.wav",
          "media_type": "audio/wav",
          "duration_ms": 9172,
          "input_tokens": 130,
          "generation_id": "7de36cd5f5f34ef8a28904b9b5985f60",
          "sample_rate_hz": 32000,
          "sale_price_usdc": 0.08,
          "gross_margin_usd": 0.067,
          "provider_attempts": 1,
          "sample_width_bits": 16,
          "upstream_cost_usd": 0.013
        }
      }
    },
    "tags": [
      "x402",
      "text-to-speech",
      "tts",
      "speech-hd",
      "high-fidelity"
    ],
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "anyOf": [
                {
                  "required": [
                    "text"
                  ]
                },
                {
                  "required": [
                    "input"
                  ]
                }
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 1,
                  "description": "Text to synthesize; the UTF-8 encoding must not exceed 500 bytes.",
                  "x-maxUtf8Bytes": 500
                },
                "input": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 1,
                  "description": "Alias for text; the UTF-8 encoding must not exceed 500 bytes.",
                  "x-maxUtf8Bytes": 500
                },
                "pitch": {
                  "type": "integer",
                  "default": 0,
                  "maximum": 12,
                  "minimum": -12
                },
                "speed": {
                  "type": "number",
                  "default": 1,
                  "maximum": 2,
                  "minimum": 0.5
                },
                "voice": {
                  "enum": [
                    "English_Wiselady",
                    "English_Deep-VoicedGentleman",
                    "English_CaptivatingStoryteller",
                    "Portuguese_Wiselady",
                    "Portuguese_Deep-VoicedGentleman",
                    "Portuguese_CaptivatingStoryteller",
                    "Portuguese_Narrator",
                    "Spanish_Wiselady",
                    "Spanish_Deep-tonedMan",
                    "Spanish_CaptivatingStoryteller",
                    "Spanish_Narrator"
                  ],
                  "type": "string",
                  "default": "English_Wiselady"
                },
                "emotion": {
                  "enum": [
                    "auto",
                    "happy",
                    "sad",
                    "angry",
                    "fearful",
                    "disgusted",
                    "surprised",
                    "neutral"
                  ],
                  "type": "string",
                  "default": "auto"
                },
                "language": {
                  "enum": [
                    "Automatic",
                    "English",
                    "French",
                    "German",
                    "Italian",
                    "Japanese",
                    "Korean",
                    "Portuguese",
                    "Spanish"
                  ],
                  "type": "string",
                  "default": "Automatic"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "bytes": 588252,
              "model": "minimax/speech-02-hd",
              "pitch": 0,
              "speed": 1,
              "voice": "English_CaptivatingStoryteller",
              "sha256": "7ded32df89c15e721f6e997931b3ee28d40a89635fe35d91b5a496712e95bead",
              "emotion": "happy",
              "channels": 1,
              "language": "English",
              "provider": "replicate",
              "audio_url": "https://api.delx.ai/api/v1/generated-audio-hd/7de36cd5f5f34ef8a28904b9b5985f60.wav",
              "media_type": "audio/wav",
              "duration_ms": 9172,
              "input_tokens": 130,
              "generation_id": "7de36cd5f5f34ef8a28904b9b5985f60",
              "sample_rate_hz": 32000,
              "sale_price_usdc": 0.08,
              "gross_margin_usd": 0.067,
              "provider_attempts": 1,
              "sample_width_bits": 16,
              "upstream_cost_usd": 0.013
            }
          }
        }
      }
    },
    "summary": "Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.",
    "category": "audio",
    "serviceName": "MiniMax Speech HD for Agents"
  }
}

Provenance

Seen in the source catalog
2026-08-29 06:45Z
Last indexed by Roundhouse
2026-09-24 07:30Z
Last enriched (probe, favicon, geo)
2026-09-10 01:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service MiniMax Speech HD for Agents and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=MiniMax%20Speech%20HD%20for%20Agents'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.delx.ai/api/v1/x402/speech-hd, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.