Coinbase
A leading global cryptocurrency exchange platform that handles cryptocurrency transactions worldwide, providing services including the buying and selling of digital assets and digital asset custody.
Core Facts
x402 is an open protocol that reuses the 402 status code (Payment Required) from the HTTP protocol, enabling software (especially AI Agents) to call APIs on a per-request pay-as-you-go basis and settle directly with cryptocurrency (typically USDC), without requiring accounts, API keys, or traditional checkout pages.
In 2023, the SEC sued Coinbase and Binance, classifying multiple tokens as unregistered securities.
The x402 protocol lets a server request stablecoin payment via the HTTP 402 status code before returning a resource, and it is already live and governed by the x402 Foundation under the Linux Foundation.
Timeline (last 90 days)
The authors conducted a chronological holdout test on Coinbase's LOB data, and the proposed variant remained competitive on the uncorrupted BTC and altcoin test intervals.
A trading exchange keeps revoking about half of its own verification records.
On Base, three schemas (verifiedAccount, verifiedCountry, verifiedCoinbaseOne) account for 97% of all revocations, and all belong to the same issuer, Coinbase.
Seven veteran Coinbase marketers, including the CMO, joined OpenAI and Anthropic.
The anti-fraud model that Coinbase fine-tuned from open-source Qwen3.5-9B beat Claude Opus 4.5 on its own risk-control benchmark.
In an A/B test on 50% of traffic, Coinbase's agent reduced fraudulent transactions by 30% and fraudulent amounts by 22%, with the fraud losses saved being about 3 times the inference cost.
Coinbase's benchmark contains 16,140 transactions, 7,293 users, and 813 confirmed fraud cases, taken from the nine weeks before the agent went live.
The agent has only ban authority, and can ban transactions that upstream let through, but cannot overturn upstream ban decisions.
The LLM agent downstream only reviews transactions selected by upstream machine learning models and rule engines, using recent transaction history and written review guidelines.
The x402 protocol lets a server request stablecoin payment via the HTTP 402 status code before returning a resource, and it is already live and governed by the x402 Foundation under the Linux Foundation.
21 more timeline events
All Facts (20)
x402 is an open protocol that reuses the 402 status code (Payment Required) from the HTTP protocol, enabling software (especially AI Agents) to call APIs on a per-request pay-as-you-go basis and settle directly with cryptocurrency (typically USDC), without requiring accounts, API keys, or traditional checkout pages.
65%VerifiedIn 2023, the SEC sued Coinbase and Binance, classifying multiple tokens as unregistered securities.
65%UnverifiedCoinbase宣布了CEO以下最多五层管理层级的方案，且要求没有纯粹的管理者，每位领导者都必须同时是优秀的个人贡献者
80%Partially VerifiedThe x402 protocol lets a server request stablecoin payment via the HTTP 402 status code before returning a resource, and it is already live and governed by the x402 Foundation under the Linux Foundation.
80%UnverifiedThe authors conducted a chronological holdout test on Coinbase's LOB data, and the proposed variant remained competitive on the uncorrupted BTC and altcoin test intervals.
50%UnverifiedA trading exchange keeps revoking about half of its own verification records.
50%UnverifiedOn Base, three schemas (verifiedAccount, verifiedCountry, verifiedCoinbaseOne) account for 97% of all revocations, and all belong to the same issuer, Coinbase.
50%UnverifiedSeven veteran Coinbase marketers, including the CMO, joined OpenAI and Anthropic.
50%UnverifiedCoinbase's benchmark contains 16,140 transactions, 7,293 users, and 813 confirmed fraud cases, taken from the nine weeks before the agent went live.
50%UnverifiedIn an A/B test on 50% of traffic, Coinbase's agent reduced fraudulent transactions by 30% and fraudulent amounts by 22%, with the fraud losses saved being about 3 times the inference cost.
50%UnverifiedThe LLM agent downstream only reviews transactions selected by upstream machine learning models and rule engines, using recent transaction history and written review guidelines.
50%UnverifiedThe agent has only ban authority, and can ban transactions that upstream let through, but cannot overturn upstream ban decisions.
50%UnverifiedThe anti-fraud model that Coinbase fine-tuned from open-source Qwen3.5-9B beat Claude Opus 4.5 on its own risk-control benchmark.
50%UnverifiedThe x402 protocol was proposed by Coinbase in 2025.
50%Unverifiedx402 is an open payment protocol based on the HTTP status code 402 Payment Required, proposed and promoted by Coinbase in 2025.
50%UnverifiedAccording to reports by Forbes and The Information, companies such as Uber, Coinbase, Meta, and Microsoft quickly slowed token spending due to rising costs, and many organizations turned to internal or open-source models.
50%UnverifiedBase is an Ethereum Layer 2 network built on the OP Stack and launched by Coinbase in 2023.
50%UnverifiedBase is an Ethereum L2 chain launched by Coinbase.
50%Unverifieda16z made early bets on companies such as Facebook, Airbnb, and Coinbase.
50%UnverifiedBoth Robinhood and Coinbase provide open APIs that allow third-party applications to initiate trading instructions upon user authorization.
50%