State of x402: Q3 2026
The AgentIndex directory now lists 500 x402-enabled services, up from 100 at the last snapshot, and this is the first quarterly State of x402 report: a data report that reads the directory like a dataset. Every number below is computed from the same data that powers the category, chain, facilitator, and price-band pages, as of the September 2026 ingest and the September 23 liveness probe. Four hundred listings arrived in September; one hundred were carried forward from August. Rather than forecasting where the ecosystem is going, this report records what it is made of.
The catalog at 500
Growth came almost entirely from new discovery: 400 of the 500 listings were added in September 2026, with 100 carried forward from the August dataset. Trust keeps pace with growth — 345 of the 500 listings (69%) carry on-chain payment evidence, the directory’s core verification signal. The remaining 155 are listed without that evidence and are labeled as such on their pages; nothing in the directory is presented as verified unless the chain says so.
Data APIs take the lead
The category mix has inverted since the last snapshot, when finance and trading held three-fifths of a 100-listing catalog. Data APIs now lead outright at 214 listings (42.8%), with finance and trading second at 113 (22.6%). The full breakdown:
| Category | Listings | Share |
|---|---|---|
| Data APIs | 214 | 42.8% |
| Finance & Trading | 113 | 22.6% |
| Other | 79 | 15.8% |
| Search & Retrieval | 33 | 6.6% |
| MCP Tools | 19 | 3.8% |
| Infrastructure & Facilitators | 15 | 3.0% |
| Commerce | 8 | 1.6% |
| Media Generation | 7 | 1.4% |
| Content Paywalls | 7 | 1.4% |
| Identity Verification | 5 | 1.0% |
The story is the top two rows: paid data feeds and market endpoints now account for nearly two-thirds of the directory between them. The long tail is genuinely long — six categories hold fewer than 20 listings each — which is what a young protocol’s service economy looks like before use cases consolidate.
Settlement stays on Base
Base settles 413 of the 500 listings (82.6%); Solana settles 84 (16.8%). Two listings settle on Base Sepolia and one on BSC. The concentration is essentially unchanged from the last snapshot in shape, even as the catalog quintupled: Base remains the default settlement rail for x402 services, Solana the minority alternative.
Two facilitators clear 91% of payments
Eleven facilitators verify and settle payments across the catalog, but volume is heavily concentrated. The coinbase facilitator clears 300 listings (60%) and coinbase-cdp clears 155 (31%) — together, 455 of 500. The remaining nine split 45 listings: payai (14), codenut (7), dexter (5), aurracloud (4), daydreams (4), cascade (4), corbits (3), thirdweb (2), and mogami (2). Concentration at the facilitator layer is the trend to watch: it simplifies integration for buyers today and represents single-point-of-failure risk if it deepens.
One pricing model
All 500 listings charge per request — the pricing model the protocol was designed around. No subscriptions, no tiers, no usage bands in the dataset: an agent pays a fixed amount per call, verified on-chain. That uniformity is itself a finding. The x402 economy, at least as this directory measures it, is a pure pay-per-call market.
Liveness: 411 of 500 answering
The September 23 probe reached 411 of the 500 listed endpoints (82.2%). Eighty-nine are flagged lapsed: 45 unreachable entirely, 37 returning 404, and a handful of 5xx errors. Lapsed does not mean removed — the directory never silently drops a listing — but it does mean roughly one in six endpoints an agent might try to pay is currently not answering. That decay rate is the honest cost of indexing a fast-moving ecosystem, and it is why the weekly probe exists: stale endpoints surface instead of rotting quietly.
What changed since the last snapshot
The evergreen State of x402 guide recorded a 100-listing directory dominated by finance and trading, with every listing verified on-chain. Three things are different now. First, scale: 500 listings, 400 of them new this month. Second, composition: data APIs overtook finance, and the verified share is 69% rather than 100% — growth outran verification, which is normal for an ingestion wave and worth watching in the next report. Third, the facilitator field widened from seven operators to eleven even as the top two tightened their grip. The next quarterly report will show whether verification catches up and whether the long-tail categories start to consolidate.
Methodology note: every count above is computed directly from the directory dataset — the same records behind the category, chain, facilitator, and price-band pages — so any number can be checked by browsing. The September 2026 ingest added 400 fresh listings (gated by the directory’s admission filters) and carried 100 forward unchanged; the liveness figures come from the September 23 weekly probe.