The open sheet

Paid endpoints that machines buy from, asked for their offer without paying and judged by a published rule. Free, under CC BY 4.0. Every figure here is signed in the open book and can be checked with one command.

MPP: sheet mpp-2026-11-11

Every paid endpoint in the public MPP catalog at mpp.dev (the catalog states no demand), each asked with the example request its own OpenAPI document gives, when it gives one, asked without paying (twice when an answer differs from the listing) and judged by the published rule mpp-1. 1,409 listings from 98 sellers. What they answered:

• 590 gave an offer an agent can pay
• 489 not reached in this run
• 192 wanted a valid request before quoting a price (not judged)
• 46 gone (404 or 410)
• 46 answered 402 with no usable offer
• 15 answered without asking for payment
• 13 refused the request
• 6 not asked (not public https)
• 6 unreachable
• 4 failed with a server error
• 2 other

Of the 590 payable challenges, 494 asked no more than the catalog's price and 12 asked more; 84 are priced by the request (dynamic) and not judged on price; 0 varied between two asks and are not held against anyone. The catalog names no recipient, so the recipient each challenge names is recorded, not judged.

x402: sheet x402-2026-11-11

Every listing in Coinbase's x402 Bazaar with 3 or more payers in 30 days, asked without paying (twice when an answer differs from the listing) and judged by the published rule sheet-1. 5,696 listings from 1,858 sellers. What they answered:

• 5,493 gave an offer an agent can pay
• 52 refused the request
• 49 gone (404 or 410)
• 39 not reached in this run
• 32 failed with a server error
• 12 unreachable
• 11 answered 402 with no usable offer
• 7 answered without asking for payment
• 1 other

Of the 5,493 payable offers, 5,032 asked no more than their listed price and 459 asked more; 158 named a pay-to address other than the listed one; 4 verdicts varied between two asks and are not held against anyone. A difference from the listing can mean the listing is out of date. 2 carried a Fair Offer block.

Operators

336 hosts are linked into 137 operators because their offers ask payment to the same address; 11 hosts sell in more than one market; 36 addresses that more than 5 hosts share are a platform's and link nobody. A link is a fact beside the rows, never a verdict: the links and their evidence.

Every sheet

Check it yourself

pip install "git+https://github.com/Agoranome/agoranome-inspector"
agoranome-inspector verify <this site's URL> --key=7pG2bGERXACET2iKMCbgBBKsud-c-6gA-b0aoHVkgTg

The book: book.jsonl (5 entries). Newest entry: 4:0xd9c7fcd25ca8661deb3baa12ed70a86f3adf02423392a03f375a6c4b9a350716. Keep it, and check later that the book still holds it with --since.