Documentation Index
Fetch the complete documentation index at: https://developers.circle.com/llms.txt
Use this file to discover all available pages before exploring further.
May 2026
2026.05.05
Added Gateway webhook documentation and subscription management API references.
Documentation additions
The following documentation was created:API additions
Added the following endpoints to support Gateway webhook subscriptions:POST /v2/notifications/subscriptions/permissionlessGET /v2/notifications/subscriptions/permissionlessGET /v2/notifications/subscriptions/permissionless/{id}PUT /v2/notifications/subscriptions/permissionless/{id}DELETE /v2/notifications/subscriptions/permissionless/{id}POST /v2/notifications/subscriptions/permissionless/{id}/testPOST /v2/notifications/subscriptions/permissionless/{id}/test-notificationGET /v2/notifications/signatures/{notificationId}
2026.05.04
Added a new quickstart for making gasless Gateway deposits with Eco.
Documentation additions
The following documentation was created:April 2026
2026.04.29
Updated nanopayments documentation to reflect mainnet launch support.
Documentation updates
The following documentation was updated:2026.04.24
Expanded the nanopayments documentation with additional buyer, seller,
facilitator, and x402 integration guidance.
Documentation updates
The following documentation was updated:- Quickstart: Pay for Resources with Nanopayments
- Quickstart: Accept Payments with Nanopayments
- How-to: Integrate Nanopayments into Your Existing Facilitator
- How-to: Add Nanopayments to an x402 Buyer
- How-to: Add Nanopayments to an x402 Seller
- How-to: Use Nanopayments with x402
- How-to: Sign EIP-3009 Payment Authorizations
2026.04.17
Updated Gateway on Solana documentation to support transfers with the Forwarding
Service and automatic ATA creation.
Documentation updates
The following documentation was updated:March 2026
2026.03.19
Updated the Gateway unified balance quickstarts to support both Circle Wallets
and permissionless implementations on the same page.
Documentation updates
The following documentation was updated:February 2026
2026.02.11
Added Forwarding Service support for Gateway. The following new topic was
created:
2026.02.07
Added support for managing delegates for Smart Contract Account (SCA) wallets.
Documentation additions
The following documentation was created:2026.02.02
Updated Gateway quickstart guides and how-tos to use consistent script structure
and console output patterns.
Documentation updates
The following documentation were updated:January 2026
2026.01.30
2026.01.14
Added support for Gateway on Solana. The following new topics were created: