Roundhouse AI

api.lyricpatch.com

Edit existing song lyrics with AI: signup-free private agent access, 40 credits for $1.99. Match supplied phrase timing, replace words, preview and export. Authorized audio only.

MediaLiveeip155:8453Exactvia cdp
https://api.lyricpatch.com/v1/agent/sessions
Calls · 30d
4
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
—
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$1.99
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-15 18:20Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x86f249221e3f76f5fee201cbf1e7f3ac71d5887c

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

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

1.99USDC≈ $1.99 USD
on Base · exact scheme

Pay 1.99 USDC on Base to 0x86f2…5887c. The signed payment is good for 2 minutes.

Paid to
0x86f2…5887c
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
1990000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x86f249221e3f76f5fee201cbf1e7f3ac71d5887c",
    "amount": "1990000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {},
        "type": "http",
        "method": "POST",
        "headers": {
          "Content-Type": "application/json"
        },
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "status": "paid",
          "credits": 40,
          "amount_cents": 199,
          "credit_balance": 40,
          "session_status": "active"
        }
      }
    },
    "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",
              "oneOf": [
                {
                  "type": "object",
                  "maxProperties": 0
                },
                {
                  "type": "object",
                  "required": [
                    "legal_version",
                    "adult_attested",
                    "terms_accepted",
                    "rights_attested",
                    "spending_authorized",
                    "media_processing_authorized"
                  ],
                  "properties": {
                    "legal_version": {
                      "type": "string",
                      "maxLength": 50,
                      "minLength": 1
                    },
                    "adult_attested": {
                      "type": "boolean",
                      "const": true
                    },
                    "terms_accepted": {
                      "type": "boolean",
                      "const": true
                    },
                    "rights_attested": {
                      "type": "boolean",
                      "const": true
                    },
                    "spending_authorized": {
                      "type": "boolean",
                      "const": true
                    },
                    "media_processing_authorized": {
                      "type": "boolean",
                      "const": true
                    }
                  },
                  "additionalProperties": false
                }
              ],
              "description": "Empty body obtains a price. Before the signed retry, provide the current legal_version and explicit adult, terms, rights, spending, and media-processing attestations from the authorized principal. See https://lyricpatch.com/agents/docs. Payment alone is not consent."
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "type": "string",
              "const": "POST"
            },
            "headers": {
              "type": "object",
              "properties": {
                "Content-Type": {
                  "type": "string",
                  "const": "application/json"
                },
                "PAYMENT-SIGNATURE": {
                  "type": "string",
                  "description": "x402 signed proof for this offer, sent only after authorized approval. Never publish a live signature."
                },
                "X-LyricPatch-Session": {
                  "type": "string",
                  "pattern": "^lp_session_[0-9a-f]{64}$",
                  "description": "Recommended: generate lp_session_ plus 64 cryptographically random lowercase hex characters before the initial request; save privately and reuse for the payment retry and recovery. No manual account or API key is required. If omitted initially, save the returned session_secret before paying."
                }
              },
              "additionalProperties": false
            },
            "bodyType": {
              "type": "string",
              "const": "json"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-15 18:21Z
Last indexed by Roundhouse
2026-09-18 12:40Z
Last enriched (probe, favicon, geo)
2026-09-16 10:15Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 404
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. 5 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 api.lyricpatch.com 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=api.lyricpatch.com'
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.lyricpatch.com/v1/agent/sessions, 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.