What Agents Buy
Actively maintained
not read yet
Use
- For
- Developers and teams deciding which paid x402 APIs their AI agents should buy from
- Activity
- Actively maintainedsite updated 3 days ago
- Used for
- check whether an x402 API's answer is actually correct
- gate agent payments with a preflight check before paying
- see which x402 sellers are getting paid real demand
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantswhatagentsbuy.com ↗
Price not read
- MCP servercom.whatagentsbuy/whatagentsbuyverified in the MCP registry
- Stateanswers, 7 toolschecked 2026-10-25
- Address to connectwhatagentsbuy.com/mcp
- OpenAPI spec9 pathsthe spec ↗
- API docswhatagentsbuy.com/apithe vendor's page ↗
- MCP docswhatagentsbuy.com/p/fortclaw-opaquethe vendor's page ↗
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
LocusMCP · sign-in
Meters and bills AI agents' calls to third-party APIs from one prepaid credit balance, with per-agent tool allowlists and spending limits.
151ActiveFrom $20/mo2025 - #2
VaayaMCP · open
Pays third-party APIs and recipes on behalf of agents, drawing on prepaid funds or a credit line with per-agent spending limits.
47ActiveFrom $14 once - #3
LicenseGroundMCP · open
Real-time API that verifies contractor licenses, workers comp, bonds and federal debarment status for AI agents.
10ActiveFrom $49/mo - #4
AiagentboardMCP · open
Probes every server in the official MCP registry on a schedule and logs a timestamped working-or-broken verdict for each.
9 - #5
GoAnyAPIMCP · sign-in
Pay-per-call APIs returning structured JSON for SEO traffic, backlinks, SERP rankings and Google Ads transparency data.
2From $10 once - #6
StatOSSMCP · sign-in
Monitors websites and APIs from several regions, alerts on-call staff, and publishes public status pages.
2ActiveOpen source
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
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Sign in to leave a noteWhat is What Agents Buy?
Buys and grades x402 pay-per-call APIs, publishing each payment receipt and a pre-payment clear, hold or abort verdict. It is listed in the Atlas under Developer tools.
Who is What Agents Buy for?
Developers and teams deciding which paid x402 APIs their AI agents should buy from
Do people use What Agents Buy?
Little sign of use.
Is What Agents Buy still maintained?
Actively maintained: site updated 3 days ago.
What are alternatives to What Agents Buy?
In Developer tools, by use: Locus, Vaaya, LicenseGround, Aiagentboard, GoAnyAPI, StatOSS.
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.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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