x402 List

x402 Protocol Service Directory

ForgeMesh Voice

AI PAYMENT-READY

payment-ready until 2026-09-21

Give your agent a voice: x402 pay-per-call text-to-speech with 20 voices, 10 personas, 31 languages, speed/quality controls and batch audio. From $0.001 per call, USDC on Base.

Part of the ForgeMesh operator hub

Pay from $0.001 to $0.006 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-09-14 · no on-chain settlement recorded yet

BASE URL https://voice.forgemesh.io WEBSITE https://voice.forgemesh.io ENDPOINTS 5 NETWORK Base ASSET USDC MEMBER SINCE 2026-09-14 MONITORED SINCE 2026-09-14

VERDICT

ranking generation 3

solid 89/100 #6 of 130 in AI by measured score

What the score read on this service: status online, 100% uptime 24h (no 30d window yet), 235ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside AI, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 130 listings, this one among them. That set is wider than the 130 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN AI

Other AI services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
Otto AI strong 96 100% $61.47
x402engine strong 93 100% $26.31
Agent402.tools solid 92 98.8% $137.74
vaaya solid 89 100% $33.09
Exa solid 89 99.9% $45.82
5 of 129 other ranked services in AI · see the whole category

ASSESSMENT

updated 2h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime 24h
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
235ms
avg response
235ms
total checks
1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.001 to $0.006 (p10 in AI)
price (min)
$0.001
price (max)
$0.006
category percentile (min)
p10 in AI
category percentile (max)
p15 in AI
endpoints / prices
5 / 4
model
tiered
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
measured since
--- (start of our harvest window)
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /v1/tts/base $0.001 Base USDC header
GET /v1/tts/base-long $0.003 Base USDC header
GET /v1/tts/custom $0.005 Base USDC header
GET /v1/tts/pro $0.003 Base USDC header
GET /v1/tts/pro-long $0.006 Base USDC header
5 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/tts/base returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://voice.forgemesh.io/v1/tts/base'
// 402 response (captured by monitor) · 5 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 1800
      }
    ],
    "resource": {
      "url": "https://voice.forgemesh.io/v1/tts/base",
      "mimeType": "audio/wav",
      "description": "Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV audio. Use it to: give an agent a spoken reply, read an alert aloud, narrate a short UI prompt, add voice to a chatbot response, speak a confirmation message. Cheapest tier. USDC on Base via x402, no API key, no signup."
    },
    "extensions": {
      "tags": [
        "text-to-speech",
        "tts",
        "voice-generation",
        "speech-synthesis",
        "audio",
        "wav"
      ],
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lang": "en",
              "text": "Hello world",
              "voice": "M1"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "description": "44.1kHz 16-bit mono WAV speech audio returned inline",
              "content_type": "audio/wav"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "lang": {
                      "enum": [
                        "en",
                        "ko",
                        "ja",
                        "ar",
                        "bg",
                        "cs",
                        "da",
                        "de",
                        "el",
                        "es",
                        "et",
                        "fi",
                        "fr",
                        "hi",
                        "hr",
                        "hu",
                        "id",
                        "it",
                        "lt",
                        "lv",
                        "nl",
                        "pl",
                        "pt",
                        "ro",
                        "ru",
                        "sk",
                        "sl",
                        "sv",
                        "tr",
                        "uk",
                        "vi"
                      ],
                      "type": "string",
                      "description": "Language code; 31 languages supported"
                    },
                    "text": {
                      "type": "string",
                      "maxLength": 2000,
                      "minLength": 1,
                      "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
                    },
                    "voice": {
                      "enum": [
                        "M1",
                        "M2",
                        "M3",
                        "M4",
                        "M5",
                        "F1",
                        "F2",
                        "F3",
                        "F4",
                        "F5"
                      ],
                      "type": "string",
                      "description": "Standard voice: M1-M5 or F1-F5"
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "properties": {
                    "audio": {
                      "type": "string",
                      "description": "Inline WAV bytes in the HTTP response body"
                    },
                    "content_type": {
                      "type": "string",
                      "const": "audio/wav"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331",
        "amount": "3000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 1800
      }
    ],
    "resource": {
      "url": "https://voice.forgemesh.io/v1/tts/pro",
      "mimeType": "audio/wav",
      "description": "Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, up to 500 characters, returned as WAV audio. Use it to: speak an urgent alert faster, slow a reading for clarity, tune synthesis quality against latency, produce a paced voice cue for a UI, generate a rushed or calm-toned notification. USDC on Base via x402, no API key."
    },
    "extensions": {
      "tags": [
        "text-to-speech",
        "tts",
        "speech-synthesis",
        "speed-control",
        "audio",
        "wav"
      ],
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lang": "en",
              "text": "Hello world",
              "voice": "M1"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "description": "44.1kHz 16-bit mono WAV speech audio returned inline",
              "content_type": "audio/wav"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "lang": {
                      "enum": [
                        "en",
                        "ko",
                        "ja",
                        "ar",
                        "bg",
                        "cs",
                        "da",
                        "de",
                        "el",
                        "es",
                        "et",
                        "fi",
                        "fr",
                        "hi",
                        "hr",
                        "hu",
                        "id",
                        "it",
                        "lt",
                        "lv",
                        "nl",
                        "pl",
                        "pt",
                        "ro",
                        "ru",
                        "sk",
                        "sl",
                        "sv",
                        "tr",
                        "uk",
                        "vi"
                      ],
                      "type": "string",
                      "description": "Language code; 31 languages supported"
                    },
                    "text": {
                      "type": "string",
                      "maxLength": 2000,
                      "minLength": 1,
                      "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
                    },
                    "speed": {
                      "type": "number",
                      "maximum": 2,
                      "minimum": 0.7,
                      "description": "Pro/Custom expressive speed control, 0.7-2.0. Presets: slow 0.7, normal 1.0, fast 1.3, rapid 1.6"
                    },
                    "steps": {
                      "type": "integer",
                      "maximum": 100,
                      "minimum": 1,
                      "description": "Pro/Custom quality control, 1-100. Presets: draft 4, standard 8, high 16, ultra 24"
                    },
                    "voice": {
                      "enum": [
                        "M1",
                        "M2",
                        "M3",
                        "M4",
                        "M5",
                        "F1",
                        "F2",
                        "F3",
                        "F4",
                        "F5"
                      ],
                      "type": "string",
                      "description": "Standard voice: M1-M5 or F1-F5"
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "properties": {
                    "audio": {
                      "type": "string",
                      "description": "Inline WAV bytes in the HTTP response body"
                    },
                    "content_type": {
                      "type": "string",
                      "const": "audio/wav"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 1800
      }
    ],
    "resource": {
      "url": "https://voice.forgemesh.io/v1/tts/custom",
      "mimeType": "audio/wav",
      "description": "Expressive text-to-speech in any of 20 voices: 10 standard (M1-M5, F1-F5) plus 10 personas (Storyteller, Narrator, Announcer, Urgent, Velvet, Sage, Spark, Anchor, Echo, Assistant), with speed and quality control, up to 500 characters, WAV output. Use it to: voice a game character, narrate a branded assistant reply, add a dramatic announcer line, give a chatbot personality-driven audio. USDC on Base."
    },
    "extensions": {
      "tags": [
        "text-to-speech",
        "tts",
        "persona-voices",
        "expressive",
        "voiceover",
        "audio",
        "wav"
      ],
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lang": "en",
              "text": "Hello world",
              "voice": "M1"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "description": "44.1kHz 16-bit mono WAV speech audio returned inline",
              "content_type": "audio/wav"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "lang": {
                      "enum": [
                        "en",
                        "ko",
                        "ja",
                        "ar",
                        "bg",
                        "cs",
                        "da",
                        "de",
                        "el",
                        "es",
                        "et",
                        "fi",
                        "fr",
                        "hi",
                        "hr",
                        "hu",
                        "id",
                        "it",
                        "lt",
                        "lv",
                        "nl",
                        "pl",
                        "pt",
                        "ro",
                        "ru",
                        "sk",
                        "sl",
                        "sv",
                        "tr",
                        "uk",
                        "vi"
                      ],
                      "type": "string",
                      "description": "Language code; 31 languages supported"
                    },
                    "text": {
                      "type": "string",
                      "maxLength": 2000,
                      "minLength": 1,
                      "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
                    },
                    "speed": {
                      "type": "number",
                      "maximum": 2,
                      "minimum": 0.7,
                      "description": "Pro/Custom expressive speed control, 0.7-2.0. Presets: slow 0.7, normal 1.0, fast 1.3, rapid 1.6"
                    },
                    "steps": {
                      "type": "integer",
                      "maximum": 100,
                      "minimum": 1,
                      "description": "Pro/Custom quality control, 1-100. Presets: draft 4, standard 8, high 16, ultra 24"
                    },
                    "voice": {
                      "enum": [
                        "M1",
                        "M2",
                        "M3",
                        "M4",
                        "M5",
                        "F1",
                        "F2",
                        "F3",
                        "F4",
                        "F5",
                        "Storyteller",
                        "Narrator",
                        "Announcer",
                        "Assistant",
                        "Urgent",
                        "Sage",
                        "Spark",
                        "Anchor",
                        "Velvet",
                        "Echo"
                      ],
                      "type": "string",
                      "description": "Voice name. Standard voices M1-M5/F1-F5; persona voices require Custom tier."
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "properties": {
                    "audio": {
                      "type": "string",
                      "description": "Inline WAV bytes in the HTTP response body"
                    },
                    "content_type": {
                      "type": "string",
                      "const": "audio/wav"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331",
        "amount": "3000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 1800
      }
    ],
    "resource": {
      "url": "https://voice.forgemesh.io/v1/tts/base-long",
      "mimeType": "audio/wav",
      "description": "Text-to-speech synthesis in 1 of 10 standard voices (M1-M5 male, F1-F5 female) across 31 languages, for longer text from 501 up to 2000 characters, returned as inline WAV audio. Use it to: read a full paragraph aloud, narrate a multi-sentence agent summary, voice an email or article excerpt, turn a longer LLM response into spoken audio, generate audio for a script section. USDC on Base via x402, no API key."
    },
    "extensions": {
      "tags": [
        "text-to-speech",
        "tts",
        "long-form",
        "voice-generation",
        "audio",
        "wav"
      ],
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lang": "en",
              "text": "Hello world",
              "voice": "M1"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "description": "44.1kHz 16-bit mono WAV speech audio returned inline",
              "content_type": "audio/wav"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "lang": {
                      "enum": [
                        "en",
                        "ko",
                        "ja",
                        "ar",
                        "bg",
                        "cs",
                        "da",
                        "de",
                        "el",
                        "es",
                        "et",
                        "fi",
                        "fr",
                        "hi",
                        "hr",
                        "hu",
                        "id",
                        "it",
                        "lt",
                        "lv",
                        "nl",
                        "pl",
                        "pt",
                        "ro",
                        "ru",
                        "sk",
                        "sl",
                        "sv",
                        "tr",
                        "uk",
                        "vi"
                      ],
                      "type": "string",
                      "description": "Language code; 31 languages supported"
                    },
                    "text": {
                      "type": "string",
                      "maxLength": 2000,
                      "minLength": 1,
                      "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
                    },
                    "voice": {
                      "enum": [
                        "M1",
                        "M2",
                        "M3",
                        "M4",
                        "M5",
                        "F1",
                        "F2",
                        "F3",
                        "F4",
                        "F5"
                      ],
                      "type": "string",
                      "description": "Standard voice: M1-M5 or F1-F5"
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "properties": {
                    "audio": {
                      "type": "string",
                      "description": "Inline WAV bytes in the HTTP response body"
                    },
                    "content_type": {
                      "type": "string",
                      "const": "audio/wav"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x962794FB8aD92941fAf1ab446b9e30637B86F331",
        "amount": "6000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 1800
      }
    ],
    "resource": {
      "url": "https://voice.forgemesh.io/v1/tts/pro-long",
      "mimeType": "audio/wav",
      "description": "Text-to-speech with speed (0.7x-2.0x) and quality-step (1-100) control, 1 of 10 standard voices across 31 languages, for 501-2000 characters, returned as WAV audio. Use it to: pace a longer narration like a podcast intro, read a multi-paragraph script at a chosen speed, produce a slow deliberate reading of instructions, voice an extended alert or briefing. USDC on Base via x402."
    },
    "extensions": {
      "tags": [
        "text-to-speech",
        "tts",
        "long-form",
        "narration",
        "audio",
        "wav"
      ],
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lang": "en",
              "text": "Hello world",
              "voice": "M1"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "description": "44.1kHz 16-bit mono WAV speech audio returned inline",
              "content_type": "audio/wav"
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "text"
                  ],
                  "properties": {
                    "lang": {
                      "enum": [
                        "en",
                        "ko",
                        "ja",
                        "ar",
                        "bg",
                        "cs",
                        "da",
                        "de",
                        "el",
                        "es",
                        "et",
                        "fi",
                        "fr",
                        "hi",
                        "hr",
                        "hu",
                        "id",
                        "it",
                        "lt",
                        "lv",
                        "nl",
                        "pl",
                        "pt",
                        "ro",
                        "ru",
                        "sk",
                        "sl",
                        "sv",
                        "tr",
                        "uk",
                        "vi"
                      ],
                      "type": "string",
                      "description": "Language code; 31 languages supported"
                    },
                    "text": {
                      "type": "string",
                      "maxLength": 2000,
                      "minLength": 1,
                      "description": "Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."
                    },
                    "speed": {
                      "type": "number",
                      "maximum": 2,
                      "minimum": 0.7,
                      "description": "Pro/Custom expressive speed control, 0.7-2.0. Presets: slow 0.7, normal 1.0, fast 1.3, rapid 1.6"
                    },
                    "steps": {
                      "type": "integer",
                      "maximum": 100,
                      "minimum": 1,
                      "description": "Pro/Custom quality control, 1-100. Presets: draft 4, standard 8, high 16, ultra 24"
                    },
                    "voice": {
                      "enum": [
                        "M1",
                        "M2",
                        "M3",
                        "M4",
                        "M5",
                        "F1",
                        "F2",
                        "F3",
                        "F4",
                        "F5"
                      ],
                      "type": "string",
                      "description": "Standard voice: M1-M5 or F1-F5"
                    }
                  },
                  "additionalProperties": false
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object",
                  "properties": {
                    "audio": {
                      "type": "string",
                      "description": "Inline WAV bytes in the HTTP response body"
                    },
                    "content_type": {
                      "type": "string",
                      "const": "audio/wav"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/forgemesh-voice/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
09-14 · uptime 100.0% · 160ms avg09-1409-14
90d UPTIME 100%
RESPONSE TIME
09-14 · 160ms avg09-14 · 160ms avg09-1409-14
AVG RESP 166ms
PRICE (captured 402, USD)
building price history ($0.003)

Median across 5 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

VOLUME (on-chain settlement, USD)
07-31 · $0.0008-01 · $0.0008-02 · $0.0008-03 · $0.0508-04 · $0.0008-05 · $0.0008-06 · $0.0008-07 · $0.0008-08 · $0.0008-09 · $0.0008-10 · $0.0408-11 · $0.0008-12 · $0.0108-13 · $0.0208-14 · $0.0008-15 · $0.0008-16 · $0.0008-17 · $0.0408-18 · $0.0008-19 · $0.0008-20 · $0.0008-21 · $0.0008-22 · $0.0008-23 · $0.0008-24 · $0.0408-25 · $0.0008-26 · $0.0208-27 · $0.0008-28 · $0.0008-29 · $0.0008-30 · $0.0108-31 · $0.0409-01 · $0.0009-02 · $0.0009-03 · $0.0009-04 · $0.0009-05 · $0.0009-06 · $0.0009-07 · $0.0409-08 · $0.0009-09 · $0.0009-10 · $0.0009-11 · $0.0009-13 · $0.0009-14 · $0.04peak $0.0507-3109-14
DISTINCT BUYERS
07-31 · 1 buyer08-01 · 1 buyer08-02 · 1 buyer08-03 · 1 buyer08-04 · 1 buyer08-05 · 1 buyer08-06 · 1 buyer08-07 · 1 buyer08-08 · 1 buyer08-09 · 1 buyer08-10 · 2 buyers08-11 · 1 buyer08-12 · 2 buyers08-13 · 2 buyers08-14 · 2 buyers08-15 · 2 buyers08-16 · 1 buyer08-17 · 1 buyer08-18 · 1 buyer08-19 · 1 buyer08-20 · 1 buyer08-21 · 1 buyer08-22 · 1 buyer08-23 · 2 buyers08-24 · 1 buyer08-25 · 1 buyer08-26 · 2 buyers08-27 · 1 buyer08-28 · 1 buyer08-29 · 1 buyer08-30 · 2 buyers08-31 · 1 buyer09-01 · 1 buyer09-02 · 1 buyer09-03 · 1 buyer09-04 · 1 buyer09-05 · 2 buyers09-06 · 2 buyers09-07 · 1 buyer09-08 · 2 buyers09-09 · 1 buyer09-10 · 2 buyers09-11 · 1 buyer09-13 · 1 buyer09-14 · 1 buyerpeak 2 buyers07-3109-14

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-14 · last up 2026-09-14

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (9) live · click to expand
TIME STATUS RESP CAUSE
● SLOW 269ms
● OK 99ms
● OK 215ms
● OK 125ms
● OK 131ms
● OK 101ms
● OK 197ms
● OK 118ms
● OK 235ms

EMBED THIS BADGE

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ForgeMesh Voice listed on x402-list
status
ForgeMesh Voice uptime on x402-list
live uptime
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  <img src="https://x402-list.com/badge/forgemesh-voice.svg" alt="ForgeMesh Voice listed on x402-list" height="28">
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// HTML · live uptime variant
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</a>

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