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.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
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.
Pay 0.05 USDC on Base to 0x2657…3b422. The signed payment is good for 1 minute.
- Paid to
- 0x2657…3b422
- 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
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.
Show the promptHide 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.