2s

2s.io · x402

Look up a protein in UniProtKB by accession (e.g. "P04637", "Q9Y6K9", "P0DTC2"). Returns the entry id, reviewed (Swiss-Prot) flag, recommended + alternative protein names, gene names, organism + taxid, sequence length and molecular weight, the curated function description, subcellular locations, Gene Ontology terms (id + term + aspect: biological_process / molecular_function / cellular_component), PDB structure ids, and keywords. Bioinformatics, structural biology, drug-target research, education. Gene-centric sibling: /api/bio/gene. CC-BY UniProt data.

Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 09:40 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check 5 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 0 days; 30 are needed.
Independent paying walletsNot shown
2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 26 Oct 2026, 14:48 UTC by method 2026.10.1, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://2s.io/api/bio/protein

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 26 Oct, 18:20 UTC
Wallets named: 0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 25 Oct 2026, 17:53 UTC

Payments

different wallets paid it, last 30 days: 2
paid calls, last 30 days: 2
last paid call (UTC): 8 Oct, 06:13

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 26 Oct 2026, 18:20 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.0036	USDC	Per request	0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5
Solana	$0.0036	USDC	Per request	TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn

From its own 402 answer at 26 Oct, 09:40 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
2s.io	x402	Live	26 Oct, 09:40	26 Oct, 09:40	100%	100%	—

History

26 Oct 2026, 14:40 UTCFirst recorded as answering. (already true when recording began)https://2s.io/api/bio/protein#135930
26 Oct 2026, 14:40 UTCPayment terms first read: 2 options, from $0.0036 on Base. (already true when recording began)https://2s.io/api/bio/protein#127347
26 Oct 2026, 14:37 UTCListed by the x402 Bazaar. The listing names wallet 0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5. (already true when recording began)the x402 Bazaar#60282

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

2s.io

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/2s-02c593ce/badge.svg)](https://addrbook.com/agents/2s-02c593ce)