Roundhouse AI

Soren

Distributed locks, semaphores, shared rate-limit buckets and monotonic counters for multi- agent fleets. Use it when nine agents share one upstream API quota, or ten workers must not process the same job twice. Buy an operation budget once, then every call runs at ordinary HTTP latency instead of waiting on settlement. Tiers: 100 ops $0.05, 1000 $0.25, 5000 $1.00. Renew and release are always free. Every acquire returns a fencing token: a TTL lock alone is not mutual exclusion.

OtherLiveeip155:8453Exactvia cdp
https://soren.com/v1/coord/session
CoordinationDistributed-lockMutexSemaphoreRate-limit
Calls · 30d
3↓ 11%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$6.35
Verified settled volume
180 settlements proven x402 by their on-chain EIP-3009 marker.
$0.250
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-07 15:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd

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.

{
  "error": "payment_required",
  "tiers": [
    {
      "ops": 100,
      "tier": "trial",
      "price_usd": "0.05",
      "per_1k_ops": "$0.50",
      "valid_for_hours": 1
    },
    {
      "ops": 1000,
      "tier": "standard",
      "price_usd": "0.25",
      "per_1k_ops": "$0.25",
      "valid_for_hours": 24
    },
    {
      "ops": 5000,
      "tier": "fleet",
      "price_usd": "1.00",
      "per_1k_ops": "$0.20",
      "valid_for_hours": 168
    }
  ],
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "resource": "/v1/coord/session"
      },
      "payTo": "0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd",
      "amount": "250000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "message": "Send Authorization: Bearer <session token> to read a session, or pay to buy one. $0.25 for 1000 coordination operations, valid 24h.",
  "resource": {
    "url": "https://soren.com/v1/coord/session",
    "tags": [
      "coordination",
      "distributed-lock",
      "mutex",
      "semaphore",
      "rate-limit",
      "quota",
      "sequence",
      "agents",
      "fleet",
      "leader-election"
    ],
    "iconUrl": "https://soren.com/soren-logo.png",
    "mimeType": "application/json",
    "description": "Distributed locks, semaphores, shared rate-limit buckets and monotonic counters for multi- agent fleets. Use it when nine agents share one upstream API quota, or ten workers must not process the same job twice. Buy an operation budget once, then every call runs at ordinary HTTP latency instead of waiting on settlement. Tiers: 100 ops $0.05, 1000 $0.25, 5000 $1.00. Renew and release are always free. Every acquire returns a fencing token: a TTL lock alone is not mutual exclusion.",
    "serviceName": "Soren"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "POST",
          "queryParams": {
            "ops": "1000"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "tier": "standard",
            "scope": "<your wallet>",
            "ops_total": 1000,
            "expires_at": "<ISO-8601 UTC>",
            "ops_remaining": 1000,
            "session_token": "<64 hex>"
          }
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [],
                "properties": {
                  "ops": {
                    "type": "string",
                    "examples": [
                      "1000"
                    ],
                    "description": "Tier to buy: 100, 1000 or 5000 operations. Default 1000."
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      },
      "routeTemplate": "/v1/coord/session"
    }
  },
  "x402Version": 2
}

Accepts

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

0.25USDC≈ $0.25 USD
on Base · exact scheme

Pay 0.25 USDC on Base to 0xaDc3…586fd. The signed payment is good for 2 minutes.

Paid to
0xaDc3…586fd
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
250000 smallest units
0.25USDC≈ $0.25 USD
on Base · exact scheme

Pay 0.25 USDC on Base to 0xaDc3…586fd. The signed payment is good for 2 minutes.

Paid to
0xaDc3…586fd
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
250000 smallest units
Buys
Distributed locks, semaphores, shared rate-limit buckets and monotonic counters for multi- agent fleets.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "resource": "/v1/coord/session"
    },
    "payTo": "0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd",
    "amount": "250000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "resource": "/v1/coord/session"
    },
    "payTo": "0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://soren.com/v1/coord/session",
    "description": "Distributed locks, semaphores, shared rate-limit buckets and monotonic counters for multi- agent fleets.",
    "outputSchema": {
      "example": {
        "tier": "standard",
        "scope": "<your wallet>",
        "ops_total": 1000,
        "expires_at": "<ISO-8601 UTC>",
        "ops_remaining": 1000,
        "session_token": "<64 hex>"
      }
    },
    "maxAmountRequired": "250000",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "POST",
        "queryParams": {
          "ops": "1000"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "tier": "standard",
          "scope": "<your wallet>",
          "ops_total": 1000,
          "expires_at": "<ISO-8601 UTC>",
          "ops_remaining": 1000,
          "session_token": "<64 hex>"
        }
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [],
              "properties": {
                "ops": {
                  "type": "string",
                  "examples": [
                    "1000"
                  ],
                  "description": "Tier to buy: 100, 1000 or 5000 operations. Default 1000."
                }
              }
            }
          },
          "additionalProperties": false
        }
      }
    },
    "routeTemplate": "/v1/coord/session"
  }
}

Provenance

Seen in the source catalog
2026-09-07 15:52Z
Last indexed by Roundhouse
2026-09-24 23:40Z
Last enriched (probe, favicon, geo)
2026-09-24 10:15Z
x402 version
2
Max timeout
120s
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. 29 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 Soren 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=Soren'
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://soren.com/v1/coord/session, 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.