Roundhouse AI

almanac.locomot.io

Verified reality, a trust layer, and a deterministic workbench for AI agents — facts (sky, field, time, verse), fair randomness, beacon timestamps, timelock sealing, sealed-bid auctions, plus citations, proofreading, readability, diffs, parsing, unit conversion and signature recovery. Pay-per-call over x402 on Base; every answer reproducible and signed. Trust you can verify.

DataLiveeip155:8453Exactvia cdp
https://almanac.locomot.io/prosody
Settlements · 30d
28↓ 75%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.20
Verified settled volume
109 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
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 2026-07-26 07:42Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xa3091005a76b1480F1897a9D0C2e1c55B7767674

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://almanac.locomot.io/llms.txt",
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xa3091005a76b1480F1897a9D0C2e1c55B7767674",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": "https://almanac.locomot.io/prosody",
  "price_usd": 0.001,
  "parameters": {
    "optional": [
      {
        "name": "op",
        "about": "rhyme|pronounce|syllables|scan|homophones"
      },
      {
        "name": "word",
        "about": "the word (rhyme/pronounce/syllables/homophones)"
      },
      {
        "name": "text",
        "about": "syllables: any text to count"
      },
      {
        "name": "line",
        "about": "scan: a line of verse to scan"
      },
      {
        "name": "types",
        "about": "rhyme: perfect,rich,assonance,consonance,slant"
      },
      {
        "name": "syllables",
        "about": "rhyme: filter results to this syllable count"
      },
      {
        "name": "meter",
        "about": "rhyme: filter to this stress pattern e.g. '10'"
      },
      {
        "name": "max",
        "about": "rhyme: max results (default 40)"
      },
      {
        "name": "min_score",
        "about": "rhyme: min closeness 0-1 (default 0.5)"
      },
      {
        "name": "notarize",
        "about": "also drand-timestamp the answer"
      }
    ],
    "required": []
  },
  "description": "Deterministic phonetic rhyme (perfect + scored slant), pronunciation, syllables, scansion, homophones — from CMUdict. Free sample, no payment required: GET /play/prosody",
  "free_sample": "https://almanac.locomot.io/play/prosody",
  "x402Version": 2,
  "sample_response": {
    "url": "https://almanac.locomot.io/prosody/example",
    "note": "free, and it IGNORES your parameters -- a fixed input, so you can see the exact response shape before paying"
  },
  "pay_once_instead": {
    "buy": "POST https://almanac.locomot.io/credits   (x402, $1.00 buys $1.20 of credit)",
    "why": "one payment, then no wallet and no signature per call",
    "then": "call this same URL with header  Authorization: Bearer tsk_...",
    "balance": "GET https://almanac.locomot.io/credits/balance   (free)"
  }
}

Accepts

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

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xa309…67674. The signed payment is good for 5 minutes.

Paid to
0xa309…67674
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xa3091005a76b1480F1897a9D0C2e1c55B7767674",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "op": "rhyme",
          "max": 6,
          "word": "orange"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "op": {
                  "enum": [
                    "rhyme",
                    "pronounce",
                    "syllables",
                    "scan",
                    "homophones"
                  ],
                  "type": "string",
                  "description": "operation; default rhyme"
                },
                "max": {
                  "type": "integer",
                  "description": "rhyme: result count"
                },
                "line": {
                  "type": "string",
                  "description": "scan: a line of verse"
                },
                "text": {
                  "type": "string",
                  "description": "syllables: any text"
                },
                "word": {
                  "type": "string",
                  "description": "the word"
                },
                "meter": {
                  "type": "string",
                  "description": "rhyme: filter by stress pattern"
                },
                "types": {
                  "type": "string",
                  "description": "rhyme: perfect,assonance,consonance,slant"
                },
                "min_score": {
                  "type": "number",
                  "description": "rhyme: min closeness 0-1"
                },
                "syllables": {
                  "type": "integer",
                  "description": "rhyme: filter by syllable count"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "properties": {
            "op": {
              "type": "string"
            },
            "note": {
              "type": "string"
            },
            "word": {
              "type": "string"
            },
            "count": {
              "type": "integer"
            },
            "engine": {
              "type": "string"
            },
            "rhymes": {
              "type": "array"
            },
            "by_type": {
              "type": "object"
            },
            "filters": {
              "type": "object"
            },
            "deterministic": {
              "type": "boolean"
            },
            "frequency_source": {
              "type": "string"
            },
            "query_pronunciation": {
              "type": "string"
            },
            "pronunciation_authority": {
              "type": "string"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-26 07:42Z
Last indexed by Roundhouse
2026-08-25 07:20Z
Last enriched (probe, favicon, geo)
2026-09-12 20:45Z
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 almanac.locomot.io 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=almanac.locomot.io'
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://almanac.locomot.io/prosody, 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.