First Dollar Test
not read yet
Use
- For
- AI agents with USDC wallets testing an x402 paid task and payout flow
- Runs as
- API
- Used for
- pay a refundable USDC deposit to start a test run
- complete a deterministic JSON task and submit a verdict
- poll a private receipt for reward or refund status
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsfirst-dollar-test.com ↗
- MCP servercom.first-dollar-test/first-dollar-testverified in the MCP registry
- Stateanswers, 7 toolschecked 2026-10-24
- Address to connectapi.first-dollar-test.com/mcp
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Simple Easy TransactionsMCP · open
Pays many wallets in USDC from one uploaded list and cashes USDC out to a US bank account.
1ActiveFrom $29/mo2026 - #2
PayPalMCP · sign-in
Digital wallet that sends and receives money, issues a debit card, offers installment payments and holds savings balances.
8.2MActive1998 - #3
CoinMarketCapMCP · sign-in
Tracks live prices, market capitalisations and trading volumes for cryptocurrencies, ranked and charted for side-by-side comparison.
4.2MActiveFrom $29/mo2013 - #4
StripeMCP · sign-in
Processes payments globally and provides financial infrastructure for businesses to accept, manage, and optimize revenue.
3.2MActiveFrom $2.70 per use2010 - #5
Ramp
Issues corporate cards and automates expense reports, invoice processing, and accounting entries across spend categories.
738kActiveFrom $15/user/mo2019 - #6
Rippling
Runs payroll, benefits, HR records, device and app provisioning and corporate cards from one employee database that syncs changes across systems.
704kActiveFrom $8/user/mo2016
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use First Dollar Test for?
Sign in to leave a noteWhat is First Dollar Test?
Runs a paid x402 wallet test where an agent pays 1 USDC, completes a JSON task, and is refunded or rewarded. It is listed in the Atlas under Finance.
Who is First Dollar Test for?
AI agents with USDC wallets testing an x402 paid task and payout flow
Do people use First Dollar Test?
Little sign of use.
What are alternatives to First Dollar Test?
In Finance, by use: Simple Easy Transactions, PayPal, CoinMarketCap, Stripe, Ramp, Rippling.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
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