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Snapshot as of 2026-09-07T09:00:55Z UTC · live figures re-derived on every daily build.
Live per-endpoint price distribution of the public Coinbase CDP x402 Bazaar catalog. Percentile ladder, price-bucket histogram, and top-10 most expensive endpoints — all figures the cheapest USDC-denominated leg per endpoint.
Headline — read with both caveats below
Across 14,689 endpoints in the snapshot, 14,406 carry a usable USDC price and 283 do not and are excluded from every figure below. Among the priced set, the median cheapest-USDC-leg is $0.010, the p90 is $0.100, and the p99 is $1.25. Free (0) and paid (14,406) split within that priced set.
Caveat 1. This is a floor, not a census of every x402 endpoint. Endpoints with no usable USDC price are excluded from every figure on this page; the priced-endpoint count below is a lower bound on the true population.
Caveat 2. Each figure is the cheapest USDC-denominated leg per endpoint. Non-USDC legs (SPL tokens, Stellar assets, non-stablecoins) are invisible to this measurement, so every price here is a lower bound on what a caller might actually pay.
Linear-interpolation percentiles over the 14,406 priced endpoints. Min = $0.0010, max = $1,000.00.
| Percentile | Cheapest USDC leg |
|---|---|
| p10 | $0.0010 |
| p25 | $0.0022 |
| p50 | $0.010 |
| p75 | $0.030 |
| p90 | $0.100 |
| p99 | $1.25 |
Buckets are upper-inclusive on the boundary (an endpoint priced at exactly $0.01 lands in the $0.001–$0.01 bucket, not the $0.01–$0.10 bucket). Percent column is a share of the 14,406 priced endpoints.
| Bucket | Endpoints | % of priced |
|---|---|---|
| $0 (free) | 0 | 0.0% |
| ≤ $0.001 | 2,664 | 18.5% |
| $0.001–$0.01 | 6,455 | 44.8% |
| $0.01–$0.10 | 3,924 | 27.2% |
| $0.10–$1.00 | 1,173 | 8.1% |
| $1.00–$10.00 | 157 | 1.1% |
| $10.00–$100.00 | 30 | 0.2% |
| $100.00+ | 3 | 0.0% |
Sorted by the cheapest USDC-denominated leg per endpoint, descending. A single endpoint at the top of this list can distort a naive “average price” — the median in the block above is the more honest headline.
| # | Host | Service / resource | Cheapest USDC leg |
|---|---|---|---|
| 1 | api.bitrefill.com | Bitrefill | $1,000.00 |
| 2 | mudko.com | Agent Ready Kit | $450.00 |
| 3 | mudko.com | Bazaar Keepalive (prepaid year) | $190.00 |
| 4 | mudko.com | Bazaar Listing Package | $99.00 |
| 5 | api.arkm.com | Arkham x402 | $50.00 |
| 6 | www.productclank.com | ProductClank Content Campaign | $50.00 |
| 7 | www.quicknode.com | https://www.quicknode.com/api/v1/agent/subscriptions | $49.00 |
| 8 | nfl-form-x402.owenlvll.workers.dev | NFL Team Form 2016-2025 | $40.00 |
| 9 | x402-delivery-map.owenlvll.workers.dev | x402 Delivery Map | $29.00 |
| 10 | api.govparse.io | https://api.govparse.io/v1/feeds/carrier-analytics | $25.00 |
https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources — the
public Coinbase CDP x402 Bazaar discovery API. No API key required.
Reported total in this snapshot:
14,689
endpoints.
amount_usdc across the endpoint’s
accepts[] payment legs
(smartcontractauditpro/tools/fetch_bazaar_catalog.py:188).
Non-USDC legs (SPL tokens, Stellar assets, non-stablecoins) are
invisible — see Caveat 2 above.
numpy.percentile default
and Python statistics.quantiles). p50 is reported twice
— once as the median above, once in the ladder below —
so the shape reads verbatim.
== 0) is a separate bucket from
“sub-cent” so the two are never conflated.
.json fetch carries its own snapshot_fetched_at
timestamp so a citation can pin a point in time.
Citation. On-Chain Agent Intel. "What does an x402 API call cost? — Live price census of the Coinbase CDP x402 Bazaar (USDC, cheapest leg per endpoint)." Snapshot 2026-09-07T09:00:55Z. https://onchainagentintel.io/what-does-an-x402-api-call-cost
BibTeX. Copy-paste for LaTeX / biblatex / Zotero:
@misc{ocai_what_does_an_x402_api_call_cost,
author = {{On-Chain Agent Intel}},
title = {What does an x402 API call cost? — Live price census of the Coinbase CDP x402 Bazaar (USDC, cheapest leg per endpoint)},
year = {2026},
month = {09},
howpublished = {\url{https://onchainagentintel.io/what-does-an-x402-api-call-cost}},
note = {Snapshot: 2026-09-07T09:00:55Z. License: CC BY 4.0.},
}License. Published under CC BY 4.0 — free to reuse, including in commercial work, provided you attribute “On-Chain Agent Intel” and link back to https://onchainagentintel.io/what-does-an-x402-api-call-cost.
Machine-readable exports. JSON · CSV — the same figures rendered above; both artifacts carry the two caveats verbatim so a machine reader cannot quote the median naked.
Also useful: x402 Bazaar market map · x402 paid-but-unrated join · How many x402 endpoints are actually used? · All datasets · API docs