What we tested
Probed live on 26 Sep 2026 against rubric v1.2. 2 of 5 checks passed. 2 unknown.
PROBE-VERIFIEDtier 2 of 3
What its MCP server offers
We connected, ran tools/list, and recorded what came back on 26 Sep 2026. 6 tools.
x402_market_statsx402_check_endpointx402_gas_pricex402_facilitator_guidex402_verified_merchantsx402_audit_merchant
Context
353 sites in the index share the category blockchain and web3. 30 transactional sites share it.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
1 check did not pass when we last looked: llms.txt. Each is a small, specific fix; the rubric says exactly what we look for.
Behavioural verification — an agent completing your key actions end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
The SingularityLayer 1 blockchain with zoned architecture, ~0.4s finality, 10M+ TPS throughput, agent-native design for autonomous transfers, actions, and trading, accessible via terminal or browser.
blockchain and web3 BCH2Bitcoin Cash II (BCH2) is a SHA-256 proof-of-work cryptocurrency forked from BC2 (BitcoinII) at block 53,200, using Bitcoin Cash consensus rules including 32MB blocks, CashAddr addresses, Schnorr signatures, and CashTokens, with no premine or dev fee.
blockchain and web3 Ethereal LabsLondon-based Web3 development studio and official Base Services Hub agency building smart contracts, full-stack dApps, token launch infrastructure, NFT platforms, blockchain analytics, and DeFi commerce for teams shipping onchain.
blockchain and web3 LetsExchangeAPI documentation for LetsExchange, a cryptocurrency exchange integration platform enabling instant crypto swaps, transaction tracking, exchange rate queries, and affiliate revenue tracking across thousands of cryptocurrencies and networks.
blockchain and web3 loophole tapeReal-time risk assessment API for new pump.fun memecoins on Solana and Robinhood Chain, providing calibrated rug probabilities, graduation odds, holder and creator data, and token risk cards. Pay-per-request in USDC on Solana or Base via x402 protocol.
blockchain and web3 SwigSwig provides tools and SDKs for building Solana wallet applications, managing wallet authorities and permissions, sponsoring transactions via paymasters, and integrating fiat ramps, supporting workflows like wallet creation, transfers, swaps, and role-based access control.
blockchain and web3 Cantor8 DocumentationDeveloper documentation for Cantor8 products providing enterprise-grade infrastructure for the Canton Network, including Wallet SDK for dApps, Enterprise Wallet for institutional custody, Token Factory for asset issuance, and Validator as a Service.
blockchain and web3 Fhenix DocumentationDocumentation site for building privacy-preserving smart contracts using Fully Homomorphic Encryption, including the Fhenix SDK, FHE.sol library, and client-side encryption/decryption for blockchain applications.
blockchain and web3 Record generated from a live database query. Method: about the index.
How we found this site: probe discovery. This site didn’t declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. How we choose what to check, and how to opt out →