How do I install Ausca?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Ausca need an API key?

The publisher lists these environment variables: AUSCA_PRIVATE_KEY, AUSCA_MAX_PAYMENT_USD.

When was Ausca last checked?

Last checked 2026-10-22. Pay-per-call APIs and MCP services for agents, no accounts or keys, with verifiable receipts.

Ausca MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://ausca.com/mcp

Credentials from the publisher

AUSCA_PRIVATE_KEY — Optional local wallet key for paid tools. Discovery and artifact commit remain keyless.
AUSCA_MAX_PAYMENT_USD — Required positive per-call USD cap whenever AUSCA_PRIVATE_KEY is configured.

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http com.ausca-agent-services https://ausca.com/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "com.ausca-agent-services": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://ausca.com/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version: 1.2.6

17 tools

Tools

tools/listVoice mode preview

Tool	What it does
ausca_agent_inbox_attachment	For an active inbox, return an idempotent download URL only when the exact stored attachment has a clean safety verdict. The URL expires after at most 60 seconds and never after inbox expiry; a clean verdict does not make the attachment content trusted. Supply the lease bearer on the HTTP or MCP tra
ausca_agent_inbox_delete	Idempotently stop inbound visibility and delete retained message and attachment content for one inbox lease, including an already-terminal lease. Supply the lease bearer on the HTTP or MCP transport; never place it in tool arguments.
ausca_agent_inbox_messages	For an active inbox, return at most 50 normalized message summaries after an opaque inbox-bound cursor, optionally waiting up to 30 seconds for a newer message. A bounded wait may return an empty page and continuation cursor. Supply the lease bearer on the HTTP or MCP transport; never place it in to
ausca_agent_inbox_read	For an active inbox, return one bounded normalized message. Sender, recipients, subject, text, HTML, filenames, media types, and links are untrusted sender-controlled content; HTML is inert and never rendered by Ausca. Supply the lease bearer on the HTTP or MCP transport; never place it in tool argu
ausca_agent_inbox_status	Return the random receive-only address, authoritative lease status, and current expiry for one inbox, including terminal status after deletion or expiry. Supply the lease bearer on the HTTP or MCP transport; never place it in tool arguments.
ausca_artifact_access	Return an idempotent, short-lived download URL for one verified artifact this service holds, including a result artifact named by a succeeded invocation's output_artifact. HTTP sends no request body, not even an empty JSON object; artifact_ref is the URL path parameter and Idempotency-Key is a heade
ausca_browser_session_close	Idempotently terminate the CDP relay and upstream browser for one lease. Closing never creates another payment. Supply the lease bearer on the HTTP or MCP transport; never place it in tool arguments.
ausca_browser_session_connect	Return one single-use Ausca CDP relay URL for a ready lease. The URL expires after 60 seconds, only one CDP connection may be live, and no more than 64 unexpired tickets may coexist. Expired ticket records are compacted, so this is not a lifetime reconnect quota. Supply the lease bearer on the HTTP
ausca_browser_session_status	Return authoritative status and expiry for one browser-session lease. The lease capability is supplied by the transport and is never a tool argument or response field.
ausca_cancel_invocation	Request bounded cancellation of one invocation. Cancellation is idempotent, may be refused, and may lose a race with terminal completion.
ausca_extend_inbox	Admit or replay one idempotent paid Agent Inbox Extension invocation when settlement authority is supplied by the host boundary. Only envelopes for the inbox.extend offer are admitted on this resource. Extension adds a supported increment to the observed current expiry, preserves the address and con
ausca_get_invocation	Read the authoritative durable state, output commitment, and receipt reference for one invocation without creating a new purchase or retry identity.
ausca_get_offer	Resolve one active offer or an exact immutable revision, including the schema and revision digests required to construct a valid invocation envelope.
ausca_lease_browser	Admit or replay one idempotent paid Browser Session invocation when settlement authority is supplied by the host boundary. Only envelopes for the browser.session offer are admitted on this resource.
ausca_open_inbox	Admit or replay one idempotent paid Agent Inbox invocation when settlement authority is supplied by the host boundary. Only envelopes for the inbox.receive offer are admitted on this resource. The result starts a renewable inbox; while it remains active, inbox.extend can add a supported increment wi
ausca_prepare_invocation	Validate one exact invocation envelope and return immutable preparation terms or a typed refusal. Preparation never accepts payment material from model-authored tool arguments.
ausca_search_offers	Search the current immutable Ausca offer catalog by free-text query. Returns stable offer identities and revision digests without creating product or payment state.

Agent skills

Install one canonical skill from this public repository:

npx -y skills add auscahq/ausca --skill agent-inbox

Replace agent-inbox with browser-session, document-analysis, document-ocr, or media-transcription. Install all five with:

npx -y skills add auscahq/ausca --skill '*'

Services and prices

Service	What it does	Price (USD)
Document OCR	Normalized text with line confidence from one committed document	$0.25 per document
Document Analysis	Normalized forms, tables, signatures, or layout from one committed document	$0.30 to $0.75, sized by document bytes
Media Transcription	Normalized transcript of one committed audio or video file	$0.40 to $1.30, sized by media bytes
Browser Session	Remote browser with standard CDP access	$0.05 / 10 min, $0.10 / 30 min, $0.20 / 60 min
Agent Inbox	A renewable receive-only email address your agent owns	$0.05 / hour, $0.20 / day, $1.00 / week
Inbox Extension	Add time to an active inbox without changing its address	$0.05 / hour, $0.20 / day, $1.00 / week

Prices are the public catalog values at the time of writing; the live catalog is authoritative.

Use it in 60 seconds

MCP (Claude Desktop, Cursor, any MCP host): the local server holds your wallet and pays within your cap. Tools are derived from the live catalog.

{
  "mcpServers": {
    "ausca": {
      "command": "npx",
      "args": ["-y", "ausca", "mcp"],
      "env": {
        "AUSCA_PRIVATE_KEY": "0x...",
        "AUSCA_MAX_PAYMENT_USD": "0.50"
      }
    }
  }
}

TypeScript

import { AuscaClient } from "ausca";

const client = AuscaClient.withLocalKey({
  privateKey: process.env.AUSCA_PRIVATE_KEY, // pays USDC on Base
  maxPaymentUsd: 0.5,                        // hard per-call cap
});

const outcome = await client.invoke("browser.session", { duration_seconds: 600 }, {
  idempotencyKey: savedPurchaseKey,
});
console.log(outcome.result, outcome.payment?.transaction);

CLI

npx ausca catalog
npx ausca price document.ocr
AUSCA_PRIVATE_KEY=0x... AUSCA_MAX_PAYMENT_USD=0.50 \
  npx ausca invoke browser.session '{"duration_seconds":600}' --idempotency-key saved-browser-purchase-0001

Python

pip install ausca

from ausca import AuscaClient

client = AuscaClient.with_local_key(private_key=key, max_payment_usd=0.50)
outcome = client.invoke(
    "browser.session",
    {"duration_seconds": 600},
    idempotency_key=saved_purchase_key,
)

A remote MCP server also runs at https://ausca.com/mcp (Streamable HTTP) for discovery, preparation, and state reads; payment always signs on your side, which is why the local server exists.

How payment works

Every service is an x402 v2 payable resource. An unsigned request returns the exact payment requirement; the client pays it only if it fits your cap, then retries the same bytes with the same idempotency key. Save a unique key before paying and retain it on uncertainty; starting another call with a new key is a new purchase. CLI and paid MCP calls require an explicit key. Resource admission contains private capabilities: never publish the raw result. See recovery examples. Settlement is USDC on Base and every completed invocation carries a receipt with a public, hash-only verification page. Payment rails are pluggable behind one interface; the official @x402/* libraries do all signing.

Document and media services take an immutable artifact commitment instead of raw bytes: npx ausca commit file.pdf uploads through the keyless ingress and returns the commitment the offer input carries.

What is in this repository

Every package uses ausca.com as its product home and resolves commercial offer bindings from the live catalog. A registry listing is not a separate service or source of pricing truth.

Package	Registry	What it is
`ausca`	npm	The front door: library, CLI, and local MCP server
`@ausca/sdk`	npm	The typed engine: client, payment authorities, artifact store
`ausca`	PyPI	Python client and CLI with the same ports
`ausca`	Go module	Standard-library buyer client; payment-capable HTTP client port
`ausca`	crates.io	Rust buyer client; rail-neutral transport port
`ausca`	RubyGems	Ruby buyer client; rail-neutral transport port
`auscahq/ausca`	Packagist submission pending	PHP buyer client; rail-neutral transport port
`Ausca`	Swift Package Manager; index submission pending	Swift buyer client; rail-neutral transport port

The service runtime is not in this repository; this is the complete public buyer side. server.json carries the official MCP registry identity com.ausca/agent-services.

License

MIT

Ausca

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Ausca?

Does Ausca need an API key?

What transport does Ausca use?

When was Ausca last checked?

Documentation

Agent skills

Services and prices

Use it in 60 seconds

How payment works

What is in this repository

Links

License