ASIN402 alternatives

15 x402 commerce APIs compared with ASIN402: the price per call read from each 402, x402 grade, uptime and median response time from our own daily unpaid checks.

ASIN402 for reference

Amazon product data for agents across 11 marketplaces: price and sales history, offers, search, best sellers, plus ready-made answers like deal checks, FBA…

Up · x402 grade A (100/100) · 100% up (14/14 checks) · $0.005 per call in its 402 · 151 ms median

ASIN402 review · Is ASIN402 down?

Top ranked

OneShot

Grade A (100/100), up

Lowest price per call in its 402

AgentMail

$0, below ASIN402's $0.005

Fastest median response

Telnyx

212 ms (ASIN402: 151 ms)

15 ASIN402 alternatives compared

Ranked by x402 grade, then uptime from our daily checks, then x402 score and response time. Price is shown but never used for ranking; “lower” or “higher” compares with ASIN402’s $0.005 per call. Paid placement never changes the order.

#	Listing and why pick it	Status	x402 grade	Uptime (checks so far)	Price in 402	Response (median)
1	OneShot status Lower price per call ($0.002 vs $0.005) Agent service that takes a goal and a budget and works through it over time using its own set of tools.	Up	A (100/100)	100% (14/14)	$0.002 (lower)	298 ms
2	Telnyx status Lower price per call ($0.002 vs $0.005) Telecom carrier offering voice, messaging and AI infrastructure for real-time agents on its own network.	Up	A (95/100)	100% (14/14)	$0.002 (lower)	212 ms
3	Underscoredone status Also pays on Solana Pay-per-use tools agents can call without an account, such as ASN/IP lookups, BIMI and CORS checks.	Up	A (95/100)	100% (14/14)	$0.01 (higher)	331 ms
4	StableTickets status Grade A, 100% up so far, $0.01 per call; no measured edge over ASIN402 Pay-per-request access to Ticketmaster's Discovery API for events, venues and attractions.	Up	A (95/100)	100% (14/14)	$0.01 (higher)	357 ms
5	StableTravel status Also pays on Solana Pay-per-request travel data for agents: flights, award seats, hotels, activities and transfers.	Up	A (90/100)	100% (14/14)	$0.02 (higher)	318 ms
6	OnlyBots status Lower price per call ($0.002 vs $0.005) Small catalog of agent APIs (reader, search, PDF reading) paid per call in USDC over x402.	Up	B (85/100)	100% (14/14)	$0.002 (lower)	336 ms
7	x402-signature-service Grade D, 100% up so far, $0.50 per call; no measured edge over ASIN402 E-signatures for AI agents: send one PDF to one email recipient for a simple electronic signature, track its…	Up	D (60/100)	100% (14/14)	$0.50 (higher)	294 ms
8	AgentMail status Lower price per call ($0 vs $0.005); also pays on Solana and Polygon Email inbox API for AI agents: create inboxes, then send, receive and search messages over REST. An x402…	Up	F (5/100)	100% (14/14)	$0 (lower)	413 ms
9	LeftClaw Services status Grade A, 100% up so far, $1.00 per call; no measured edge over ASIN402 Hire an AI Ethereum builder for consulting, builds and audits, paid in CLAWD or USDC on Base.	Up	A (95/100)	100% (14/14)	$1.00 (higher)	517 ms
10	Affiliate.com status Grade A, 100% up so far, $0.02 per call; no measured edge over ASIN402 Structured, real-time product data for publishers, networks and brands, for AI and traditional shopping.	Up	A (95/100)	100% (14/14)	$0.02 (higher)	898 ms
11	Agentic Reservations status Also pays on Solana API that lets AI agents search and book Resy restaurant reservations, paid per booking in USDC.	Up	A (90/100)	100% (14/14)	$0.01 (higher)	410 ms
12	JapanAgent Bridge Lower price per call ($0.002 vs $0.005) Japan API for agents that checks Japanese identifiers, searches local-government grants and runs research in…	Up	B (85/100)	100% (14/14)	$0.002 (lower)	552 ms
13	Palmyr status Lower price per call ($0.001 vs $0.005); also pays on Solana Phone numbers, email, compute and domains for AI agents, paid in USDC over x402.	Up	B (80/100)	100% (14/14)	$0.001 (lower)	510 ms
14	SingIt Lower price per call ($0.0015 vs $0.005); also pays on Solana Spending wallet for AI agents: set a daily and a per-purchase limit once, and the agent buys gift cards,…	Up	D (60/100)	100% (14/14)	$0.0015 (lower)	683 ms
15	Card Hedge API status Grade A, 100% up so far, $0.01 per call; no measured edge over ASIN402 Sports and trading card data API: graded-card prices, comps, price history, cert lookups and image-based…	Up	A (100/100)	100% (7/7)	$0.01 (higher)	1109 ms

1. OneShotUp
Lower price per call ($0.002 vs $0.005)
x402 grade
A (100/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.002 (lower)
Response
298 ms
OneShot status
2. TelnyxUp
Lower price per call ($0.002 vs $0.005)
x402 grade
A (95/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.002 (lower)
Response
212 ms
Telnyx status
3. UnderscoredoneUp
Also pays on Solana
x402 grade
A (95/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.01 (higher)
Response
331 ms
Underscoredone status
4. StableTicketsUp
Grade A, 100% up so far, $0.01 per call; no measured edge over ASIN402
x402 grade
A (95/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.01 (higher)
Response
357 ms
StableTickets status
5. StableTravelUp
Also pays on Solana
x402 grade
A (90/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.02 (higher)
Response
318 ms
StableTravel status
6. OnlyBotsUp
Lower price per call ($0.002 vs $0.005)
x402 grade
B (85/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.002 (lower)
Response
336 ms
OnlyBots status
7. x402-signature-serviceUp
Grade D, 100% up so far, $0.50 per call; no measured edge over ASIN402
x402 grade
D (60/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.50 (higher)
Response
294 ms
8. AgentMailUp
Lower price per call ($0 vs $0.005); also pays on Solana and Polygon
x402 grade
F (5/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0 (lower)
Response
413 ms
AgentMail status
9. LeftClaw ServicesUp
Grade A, 100% up so far, $1.00 per call; no measured edge over ASIN402
x402 grade
A (95/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$1.00 (higher)
Response
517 ms
LeftClaw Services status
10. Affiliate.comUp
Grade A, 100% up so far, $0.02 per call; no measured edge over ASIN402
x402 grade
A (95/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.02 (higher)
Response
898 ms
Affiliate.com status
11. Agentic ReservationsUp
Also pays on Solana
x402 grade
A (90/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.01 (higher)
Response
410 ms
Agentic Reservations status
12. JapanAgent BridgeUp
Lower price per call ($0.002 vs $0.005)
x402 grade
B (85/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.002 (lower)
Response
552 ms
13. PalmyrUp
Lower price per call ($0.001 vs $0.005); also pays on Solana
x402 grade
B (80/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.001 (lower)
Response
510 ms
Palmyr status
14. SingItUp
Lower price per call ($0.0015 vs $0.005); also pays on Solana
x402 grade
D (60/100)
Uptime (checks so far)
100% (14/14)
Price in 402
$0.0015 (lower)
Response
683 ms
15. Card Hedge APIUp
Grade A, 100% up so far, $0.01 per call; no measured edge over ASIN402
x402 grade
A (100/100)
Uptime (checks so far)
100% (7/7)
Price in 402
$0.01 (higher)
Response
1109 ms
Card Hedge API status

Prices are what each endpoint’s 402 asked for at our last check, for the one endpoint we check. Each API does its own job and other routes may be priced differently, so a lower price is not like-for-like. Check the provider before paying.

ASIN402 alternatives FAQ

What are the best alternatives to ASIN402?

By our ranking (x402 grade, then uptime from our daily checks, then x402 score and response time): OneShot, Telnyx, Underscoredone. Each does its own job, so check that its endpoints cover what you use ASIN402 for.

Is there a cheaper alternative to ASIN402?

7 of the 15 alternatives asked for less per call than ASIN402's $0.005 in their 402 at our last check: OneShot ($0.002), Telnyx ($0.002), OnlyBots ($0.002), AgentMail ($0), JapanAgent Bridge ($0.002) and others. Prices are for the endpoint we check; other routes and what you get per call differ, so check the provider before paying.

How are these alternatives ranked?

Same category, ranked by x402 grade, then uptime from our own daily unpaid checks, then x402 score, valid x402 share and median response time. Price is shown but never used for ranking, and paid placement never changes the order.

ASIN402 review·ASIN402 status·commerce APIs status·Best commerce APIs·Uptime leaderboard

Data as of Nov 10, 2026, 7:14 AM ET. One unpaid request per listing per day to its example endpoint; up means any answer below HTTP 500 except 404/410 within 8 seconds. The x402 grade comes from x402fix, our free unpaid check of each 402 payment request; it rates the payment request, not uptime, and is not an endorsement. Listings with no check yet, no price read from a 402, or a check we are fixing are left out.

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