Discover APIs, MCP tools, datasets, agent services and machine-payable resources built for autonomous software.
agent> search("solana token security") 1. Resolve a DOI to publication metadata - citation text, identifiers and source links $0.01 / request · x402 · Base, Polygon · json 2. npm package report for the latest release - version, license, dependencies, engines and… $0.01 / request · x402 · Base, Polygon · json 3. Find up to five publications by query - DOI, authors, year and citation count $0.01 / request · x402 · Base, Polygon · json agent> GET https://saylorinnovations.com/api/research/doi?doi={doi}HTTP 402 · payment requirements receivedpayment authorized · settled on-chainresource delivered · 200 OKagent>
Counts are live from the catalog. Settlements stay "—" because Agent Bazaar never proxies calls or touches payments. Call volume is third-party data from the public x402 Bazaar.
Paid placements first, then Saylor Innovations' own owner-operated listings, served from its live x402 manifest.
Resolve a DOI to publication metadata - citation text, identifiers and source links
npm package report for the latest release - version, license, dependencies, engines and deprecation notice
Find up to five publications by query - DOI, authors, year and citation count
Find up to five npm packages by query - version, description, ranking score and source links
Python package report for the latest release - compatibility, dependencies, license and PyPI advisories
CVE lookup - description, status, CVSS metrics, weakness ids and references
Ranked by paid calls in the last 30 days as reported by the x402 facilitator's public discovery API. Third-party data, shown as reported.
The latest listings to enter the catalog.
A marketplace built for people to scroll is not enough for software that has to find, judge, pay for and call a service on its own. Agent Bazaar is both: a marketplace people can browse, and a discovery layer machines can query.
Every listing carries what an agent needs to decide without a human: what the resource does, the exact price, which payment assets and networks it accepts, and its output schema. The same record renders this page, answers /discovery/search, fills /discovery/resources and powers the MCP server.
Developers should not need permission from a central company to make a useful service discoverable by autonomous software. Agent Bazaar is MIT-licensed and interoperable by design: it reads and writes the same x402 v2 discovery format as the facilitator ecosystem, speaks MCP and A2A, and indexes the public x402 Bazaar alongside provider manifests. No account or KYC to list or discover.
Submit the URL of your .well-known/x402.json manifest or an A2A agent card. Agent Bazaar validates it, indexes every payable resource, and marks the listing verified because you proved control.
Saylor Innovations — owner-operated x402 APIs and an MCP server.
