Agent payments and auth
The x402 rail (HTTP 402 plus stablecoin micropayments) is real infrastructure with Linux Foundation backing, and a few APIs already accept it. Real demand is still small: one live dashboard filters 86% of transactions as wash or idle machine traffic.
Catalog only, not yet measuredFireblocks report (Nov 3, 2026); Barker dashboard · dashboard read Nov 7, 2026
x402: headline figures against filtered volume
196M
transactions since launch (Fireblocks)
$42M+
settled since launch (Fireblocks)
$1.43M
real 30-day volume (Barker)
86%
of transactions filtered as wash or idle (Barker)
Vendor-reported / commissionedCatalog only, not yet measured
Tools
Alphabetical. Links go to each vendor's own site.
| Tool | What it does | Evidence | Price or terms |
|---|---|---|---|
| Composio | auth-on-behalf-of-agents around MCP | none yet | free 100k tool calls/mo; Pro $29/mo |
| Exa (x402) | search and contents payable per request over x402 | none yet | per request |
| Firecrawl agent auth | agents mint their own API keys via identity assertions | none yet | not published |
| x402 | HTTP 402 micropayments | none yet | open protocol, no fee |
| ZenRows | agent storefront in llms.txt with autonomous purchase | none yet | plans by volume |
Caveats
- Transaction counts are third-party reports, not our measurement.