Ausca Browser Session

Ausca is infrastructure agents can buy: metered APIs and MCP services without accounts or provider API keys, with explicit pricing and verifiable receipts.

InfraLiveeip155:8453Exactvia cdp
BrowserCdp
Calls · 30d
16→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 6 snapshots so far.
$1,314.82
Verified settled volume
305 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
16
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-02 11:25Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x26572ff23c6c52bfb1a69cb0c9114a8be443b422

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.

{
  "code": "payment_required",
  "status": "error",
  "message": "Payment authority is required."
}

Accepts

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

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x2657…3b422. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0x26572ff23c6c52bfb1a69cb0c9114a8be443b422",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "input": {
            "duration_seconds": 600
          },
          "offer_id": "browser.session",
          "offer_revision": "browser-duration-r1",
          "idempotency_key": "ausca-x402-discovery-example",
          "input_schema_digest": "sha256:77101d65994f356ed243aa1e4e962e5c2d5ed90b34b16dc8ceb1b2d01b9ebdd1",
          "output_schema_digest": "sha256:8ac4e056529afc673a405942139b11cb35fed3f626a6e3cadc3b73ae8d44a5d6",
          "canonicalizer_version": "runx.receipt.c14n.v1",
          "offer_revision_digest": "sha256:56854d99b015415867046e897e350856770070222300a7b0917297ed7f78ec44"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "status": "accepted",
          "invocation": {
            "state": "succeeded",
            "output": {
              "resource_lease": {
                "state": "ready",
                "schema": "ausca.browser_session.lease.v1",
                "created_at": "2026-09-01T00:00:00Z",
                "expires_at": "2026-09-01T00:10:00Z",
                "session_id": "brs_abcdefghijklmnopqrstuv"
              }
            },
            "updated_at": "2026-01-01T00:00:00Z",
            "receipt_ref": {
              "uri": "runx:receipt:discovery-example",
              "type": "receipt"
            },
            "invocation_id": "ausca-discovery-example",
            "output_digest": "sha256:e9816aabe63e16405274d6cb4c7ac7b02e6f2046d0e10ebcf4107dab3be3f65f",
            "offer_revision_digest": "sha256:56854d99b015415867046e897e350856770070222300a7b0917297ed7f78ec44"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "offer_id",
                "offer_revision",
                "offer_revision_digest",
                "input_schema_digest",
                "output_schema_digest",
                "canonicalizer_version",
                "input",
                "idempotency_key"
              ],
              "properties": {
                "input": {
                  "type": "object",
                  "title": "Browser session create input",
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "required": [
                    "duration_seconds"
                  ],
                  "properties": {
                    "duration_seconds": {
                      "enum": [
                        600,
                        1800,
                        3600
                      ],
                      "type": "integer",
                      "description": "Hard lease duration: 10, 30, or 60 minutes."
                    }
                  },
                  "description": "Create one remote browser lease for a supported duration.",
                  "additionalProperties": false
                },
                "offer_id": {
                  "type": "string",
                  "const": "browser.session"
                },
                "offer_revision": {
                  "type": "string",
                  "const": "browser-duration-r1"
                },
                "idempotency_key": {
                  "type": "string",
                  "maxLength": 128,
                  "minLength": 16
                },
                "input_schema_digest": {
                  "type": "string",
                  "const": "sha256:77101d65994f356ed243aa1e4e962e5c2d5ed90b34b16dc8ceb1b2d01b9ebdd1"
                },
                "output_schema_digest": {
                  "type": "string",
                  "const": "sha256:8ac4e056529afc673a405942139b11cb35fed3f626a6e3cadc3b73ae8d44a5d6"
                },
                "canonicalizer_version": {
                  "type": "string",
                  "const": "runx.receipt.c14n.v1"
                },
                "offer_revision_digest": {
                  "type": "string",
                  "const": "sha256:56854d99b015415867046e897e350856770070222300a7b0917297ed7f78ec44"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "status",
                "invocation"
              ],
              "properties": {
                "status": {
                  "type": "string",
                  "const": "accepted"
                },
                "invocation": {
                  "type": "object",
                  "required": [
                    "invocation_id",
                    "offer_revision_digest",
                    "state",
                    "updated_at",
                    "output",
                    "output_digest",
                    "receipt_ref"
                  ],
                  "properties": {
                    "state": {
                      "type": "string",
                      "const": "succeeded"
                    },
                    "output": {
                      "type": "object",
                      "title": "Browser session lease output",
                      "$schema": "https://json-schema.org/draft/2020-12/schema",
                      "required": [
                        "resource_lease"
                      ],
                      "properties": {
                        "resource_lease": {
                          "type": "object",
                          "required": [
                            "schema",
                            "session_id",
                            "state",
                            "created_at",
                            "expires_at"
                          ],
                          "properties": {
                            "state": {
                              "const": "ready"
                            },
                            "schema": {
                              "const": "ausca.browser_session.lease.v1"
                            },
                            "created_at": {
                              "type": "string",
                              "format": "date-time"
                            },
                            "expires_at": {
                              "type": "string",
                              "format": "date-time"
                            },
                            "session_id": {
                              "type": "string",
                              "pattern": "^brs_[A-Za-z0-9_-]{22,64}$"
                            }
                          },
                          "additionalProperties": false
                        }
                      },
                      "additionalProperties": false
                    },
                    "updated_at": {
                      "type": "string",
                      "format": "date-time"
                    },
                    "receipt_ref": {
                      "type": "object",
                      "required": [
                        "type",
                        "uri"
                      ],
                      "properties": {
                        "uri": {
                          "type": "string",
                          "pattern": "^runx:receipt:.+$"
                        },
                        "type": {
                          "type": "string",
                          "const": "receipt"
                        }
                      },
                      "additionalProperties": false
                    },
                    "invocation_id": {
                      "type": "string",
                      "maxLength": 128,
                      "minLength": 1
                    },
                    "output_digest": {
                      "type": "string",
                      "pattern": "^sha256:[0-9a-f]{64}$"
                    },
                    "offer_revision_digest": {
                      "type": "string",
                      "const": "sha256:56854d99b015415867046e897e350856770070222300a7b0917297ed7f78ec44"
                    }
                  },
                  "additionalProperties": false
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    }
  },
  "runx.invocation": {
    "info": {
      "purpose": "discovery",
      "offer_revision": {
        "offer_id": "browser.session",
        "revision": "browser-duration-r1",
        "revision_digest": "sha256:56854d99b015415867046e897e350856770070222300a7b0917297ed7f78ec44",
        "input_schema_digest": "sha256:77101d65994f356ed243aa1e4e962e5c2d5ed90b34b16dc8ceb1b2d01b9ebdd1",
        "output_schema_digest": "sha256:8ac4e056529afc673a405942139b11cb35fed3f626a6e3cadc3b73ae8d44a5d6"
      },
      "package_digest": "sha256:c1b7481b2de408335bae6879db7bed6d624f13f41b7472dadfebc20294de4310"
    },
    "schema": {
      "$id": "https://schemas.runx.ai/runx/x402/invocation-extension/v1.json",
      "anyOf": [
        {
          "type": "object",
          "required": [
            "purpose",
            "offer_revision",
            "package_digest"
          ],
          "properties": {
            "purpose": {
              "type": "string",
              "const": "discovery"
            },
            "offer_revision": {
              "$id": "https://schemas.runx.ai/runx/payment/offer-revision-ref/v1.json",
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "offer_id",
                "revision",
                "revision_digest",
                "input_schema_digest",
                "output_schema_digest"
              ],
              "properties": {
                "schema": {
                  "type": "string",
                  "const": "runx.payment.offer_revision_ref.v1"
                },
                "offer_id": {
                  "type": "string",
                  "minLength": 1
                },
                "revision": {
                  "type": "string",
                  "minLength": 1
                },
                "revision_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                },
                "input_schema_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                },
                "output_schema_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                }
              },
              "x-runx-schema": "runx.payment.offer_revision_ref.v1",
              "additionalProperties": false
            },
            "package_digest": {
              "type": "string",
              "pattern": "^sha256:[0-9a-f]{64}$"
            }
          },
          "additionalProperties": false
        },
        {
          "type": "object",
          "required": [
            "purpose",
            "invocation_id",
            "quote_ref",
            "offer_revision",
            "package_digest",
            "input_digest",
            "canonicalizer_version",
            "idempotency"
          ],
          "properties": {
            "parent": {
              "$id": "https://schemas.runx.ai/runx/payment/parent-invocation-binding/v1.json",
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "invocation_id",
                "execution_digest"
              ],
              "properties": {
                "schema": {
                  "type": "string",
                  "const": "runx.payment.parent_invocation_binding.v1"
                },
                "invocation_id": {
                  "type": "string",
                  "minLength": 1
                },
                "execution_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                }
              },
              "x-runx-schema": "runx.payment.parent_invocation_binding.v1",
              "additionalProperties": false
            },
            "purpose": {
              "type": "string",
              "const": "invocation"
            },
            "quote_ref": {
              "$id": "https://schemas.runx.ai/runx/reference/v1.json",
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "type",
                "uri"
              ],
              "properties": {
                "uri": {
                  "type": "string",
                  "minLength": 1
                },
                "type": {
                  "anyOf": [
                    {
                      "type": "string",
                      "const": "github_issue"
                    },
                    {
                      "type": "string",
                      "const": "github_pull_request"
                    },
                    {
                      "type": "string",
                      "const": "github_repo"
                    },
                    {
                      "type": "string",
                      "const": "slack_thread"
                    },
                    {
                      "type": "string",
                      "const": "sentry_event"
                    },
                    {
                      "type": "string",
                      "const": "provider_thread"
                    },
                    {
                      "type": "string",
                      "const": "provider_event"
                    },
                    {
                      "type": "string",
                      "const": "provider_comment"
                    },
                    {
                      "type": "string",
                      "const": "tracking_item"
                    },
                    {
                      "type": "string",
                      "const": "change_request"
                    },
                    {
                      "type": "string",
                      "const": "repository"
                    },
                    {
                      "type": "string",
                      "const": "support_ticket"
                    },
                    {
                      "type": "string",
                      "const": "signal"
                    },
                    {
                      "type": "string",
                      "const": "act"
                    },
                    {
                      "type": "string",
                      "const": "receipt"
                    },
                    {
                      "type": "string",
                      "const": "graph_receipt"
                    },
                    {
                      "type": "string",
                      "const": "artifact"
                    },
                    {
                      "type": "string",
                      "const": "verification"
                    },
                    {
                      "type": "string",
                      "const": "harness"
                    },
                    {
                      "type": "string",
                      "const": "host"
                    },
                    {
                      "type": "string",
                      "const": "deployment"
                    },
                    {
                      "type": "string",
                      "const": "surface"
                    },
                    {
                      "type": "string",
                      "const": "target"
                    },
                    {
                      "type": "string",
                      "const": "opportunity"
                    },
                    {
                      "type": "string",
                      "const": "thesis_assessment"
                    },
                    {
                      "type": "string",
                      "const": "selection"
                    },
                    {
                      "type": "string",
                      "const": "skill_binding"
                    },
                    {
                      "type": "string",
                      "const": "target_transition_entry"
                    },
                    {
                      "type": "string",
                      "const": "selection_cycle"
                    },
                    {
                      "type": "string",
                      "const": "decision"
                    },
                    {
                      "type": "string",
                      "const": "reflection_entry"
                    },
                    {
                      "type": "string",
                      "const": "feed_entry"
                    },
                    {
                      "type": "string",
                      "const": "principal"
                    },
                    {
                      "type": "string",
                      "const": "authority_proof"
                    },
                    {
                      "type": "string",
                      "const": "scope_admission"
                    },
                    {
                      "type": "string",
                      "const": "grant"
                    },
                    {
                      "type": "string",
                      "const": "mandate"
                    },
                    {
                      "type": "string",
                      "const": "credential"
                    },
                    {
                      "type": "string",
                      "const": "webhook_delivery"
                    },
                    {
                      "type": "string",
                      "const": "redaction_policy"
                    },
                    {
                      "type": "string",
                      "const": "external_url"
                    }
                  ]
                },
                "label": {
                  "type": "string",
                  "minLength": 1
                },
                "schema": {
                  "type": "string",
                  "const": "runx.reference.v1"
                },
                "locator": {
                  "type": "string",
                  "minLength": 1
                },
                "provider": {
                  "type": "string",
                  "minLength": 1
                },
                "proof_kind": {
                  "anyOf": [
                    {
                      "type": "string",
                      "const": "effect_evidence"
                    },
                    {
                      "type": "string",
                      "const": "effect_finality"
                    },
                    {
                      "type": "string",
                      "const": "credential_resolution"
                    }
                  ]
                },
                "observed_at": {
                  "type": "string",
                  "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d+)?Z$",
                  "minLength": 1
                }
              },
              "x-runx-schema": "runx.reference.v1",
              "additionalProperties": false
            },
            "idempotency": {
              "type": "object",
              "required": [
                "key",
                "binding_digest"
              ],
              "properties": {
                "key": {
                  "type": "string",
                  "minLength": 1
                },
                "binding_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                }
              },
              "additionalProperties": false
            },
            "input_digest": {
              "type": "string",
              "pattern": "^sha256:[0-9a-f]{64}$"
            },
            "invocation_id": {
              "type": "string",
              "minLength": 1
            },
            "offer_revision": {
              "$id": "https://schemas.runx.ai/runx/payment/offer-revision-ref/v1.json",
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "offer_id",
                "revision",
                "revision_digest",
                "input_schema_digest",
                "output_schema_digest"
              ],
              "properties": {
                "schema": {
                  "type": "string",
                  "const": "runx.payment.offer_revision_ref.v1"
                },
                "offer_id": {
                  "type": "string",
                  "minLength": 1
                },
                "revision": {
                  "type": "string",
                  "minLength": 1
                },
                "revision_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                },
                "input_schema_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                },
                "output_schema_digest": {
                  "type": "string",
                  "pattern": "^sha256:[0-9a-f]{64}$"
                }
              },
              "x-runx-schema": "runx.payment.offer_revision_ref.v1",
              "additionalProperties": false
            },
            "package_digest": {
              "type": "string",
              "pattern": "^sha256:[0-9a-f]{64}$"
            },
            "canonicalizer_version": {
              "anyOf": [
                {
                  "type": "string",
                  "const": "runx.receipt.c14n.v1"
                }
              ]
            }
          },
          "additionalProperties": false
        }
      ],
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "x-runx-schema": "runx.x402.invocation_extension.v1"
    }
  }
}

Provenance

Seen in the source catalog
2026-09-02 11:25Z
Last indexed by Roundhouse
2026-09-03 12:40Z
Last enriched (probe, favicon, geo)
2026-09-22 12:45Z
x402 version
2
Max timeout
60s
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. 6 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 Ausca Browser Session 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=Ausca%20Browser%20Session'
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://ausca.com/v1/invocations, 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.