AgentIndex · trends
AI agent ecosystem adoption
Daily-measured growth across 9 days (2026-08-13 – 2026-08-21). All numbers from our nightly crawl and on-chain verification — not publisher self-reports. Change shown relative to the first measured day.
Endpoints indexed
13,076
↑ 6.9% (+848)Unique agent service domains tracked in the index.
MCP resources
22,407
↑ 0.1% (+22)Model Context Protocol — resources from live servers in the index.
x402 paid services
26,171
↑ 13.9% (+3,196)Endpoints serving x402 HTTP payment challenges (Coinbase protocol).
A2A agents
1,575
↑ 0.1% (+2)Google A2A protocol — agents with published agent cards.
Payments measured
9,106,749
↑ 648.2% (+7,889,536)On-chain USDC transfers to indexed agent services. Trailing 7-day rolling window.
ERC-8004 agents
42,516
↑ 5.8% (+2,349)Trustless Agents IdentityRegistry on Base + Ethereum + Arbitrum.
Resource listings
172,872
↑ 3.6% (+6,000)Total resource listings across all endpoints (including multi-source duplicates).
Bazaar 30d calls
330,321
Coinbase x402 Bazaar-measured API calls to listed services, trailing 30 days.
Historical data
| Date | Endpoints | MCP | x402 | A2A | Payments | Resources |
|---|---|---|---|---|---|---|
| 2026-08-21 | 13,076 | 22,407 | 26,171 | 1,575 | 9,106,749 | 172,872 |
| 2026-08-20 | 12,960 | 22,402 | 25,923 | 1,574 | 4,446,747 | 172,568 |
| 2026-08-19 | 12,849 | 22,397 | 25,782 | 1,574 | 4,098,640 | 172,310 |
| 2026-08-18 | 12,744 | 22,401 | 25,428 | 1,574 | 3,100,321 | 171,844 |
| 2026-08-17 | 12,637 | 22,393 | 25,180 | 1,574 | 2,208,726 | 171,499 |
| 2026-08-16 | 12,550 | 22,395 | 25,043 | 1,574 | 1,646,996 | 171,328 |
| 2026-08-15 | 12,480 | 22,391 | 24,730 | 1,574 | 1,386,382 | 170,881 |
| 2026-08-14 | 12,343 | 22,385 | 23,306 | 1,573 | 1,231,372 | 169,308 |
| 2026-08-13 | 12,228 | 22,385 | 22,975 | 1,573 | 1,217,213 | 166,872 |
Payments column reflects a trailing 7-day rolling window, not a cumulative total. Data updates each night around 03:30 UTC. Machine-readable equivalent: /data.json.