coinbase x402 ecosystem / 2026-09-28
This radar reads public Coinbase x402 pull requests and separates partner listings, MCP payment endpoints, mainnet rails, discovery metadata, and browser/payment-header launch signals. The useful question is not whether a launch mentions x402. It is whether agents can discover the paid surface, understand the cap, receive a proper 402, and reconcile the receipt.
priority surfaces
urgent / 94
Adds **TrapCheck** (https://trapcheck.dev) to the ecosystem page under **Services/Endpoints**.
Primary URL: https://trapcheck.dev
PR #359 by @AnointedxWolfurgent / 94
Adds RelayShield to the x402 ecosystem directory under Services/Endpoints.
Primary URL: https://api.relayshield.net/.well-known/x402.json`
PR #355 by @nzdsf2-gifurgent / 86
Adds Miorail to the ecosystem page under **Services/Endpoints**: `app/ecosystem/partners-data/miorail/metadata.json` and `public/logos/miorail.svg`.
Primary URL: https://miorail.xyz/x402:
PR #351 by @mioku50urgent / 86
Adds **HostDeFi Token Risk API** to the ecosystem page under **Services/Endpoints**, per the README recipe (new `partners-data/hostdefi/metadata.json` + `public/logos/hostdefi.png`, 512×512).
Primary URL: https://hostdefi.com/docs/api/
PR #336 by @verixiaappsurgent / 86
Adds relay402 to the ecosystem directory under Services/Endpoints.
Primary URL: https://relay402.georgespring.workers.dev
PR #233 by @GeorgeSpringurgent / 86
Adds **TrustDex Token Risk API** to the ecosystem page under **Services/Endpoints**, per the site README recipe (`partners-data/trustdex/metadata.json` + `public/logos/trustdex.png`, 512x512).
Primary URL: https://trustdex.app/docs/api/
PR #285 by @verixiaappsurgent / 86
Adds `ag-pay` to the x402 ecosystem directory. A self-hosted Hermes + NVIDIA NIM (minimax-m3) pay-per-request server settling through the PayAI facilitator on Base mainnet (eip155:8453).
Primary URL: https://facilitator.payai.network
PR #279 by @squadanurgent / 84
Add Losbeto to ecosystem partners
Primary URL: https://api.losbeto.xyz
PR #356 by @rmartins1451latest movement
Rows are public launch or implementation signals, not vulnerability findings. Use them to choose where a no-payment proof pass would add the most trust.
| PR | surface | category | rails | max price | priority |
|---|---|---|---|---|---|
| #360 | Add Predge to the x402 ecosystem | ecosystem listing | Base, Solana, USDC | n/a | urgent |
| #359 | ecosystem: add TrapCheck (Services/Endpoints) | ecosystem listing | Base, USDC, mainnet | $0.03 | urgent |
| #358 | ecosystem: add x402receipts (Infrastructure & Tooling) | ecosystem listing | Base, Solana | n/a | urgent |
| #357 | Add Synthetic Universe to ecosystem directory | ecosystem listing | Base, USDC | $0.08 | review |
| #356 | Add Losbeto to ecosystem partners | ecosystem listing | Base, Solana, USDC, mainnet | n/a | urgent |
| #355 | feat(ecosystem): add RelayShield to Services/EndpointsAdd files via upload | ecosystem listing | Base, Solana, USDC, mainnet | n/a | urgent |
| #354 | Add x402-spendguard to ecosystem directory | ecosystem listing | not declared | n/a | review |
| #353 | [StepSecurity] Apply security best practices | docs / discovery | not declared | n/a | watch |
| #184 | feat(ecosystem): add extract.dkta.dev — LLM-ready content extraction … | ecosystem listing | Base | n/a | review |
| #349 | ecosystem: add Overwing (Services/Endpoints) | ecosystem listing | Base, USDC | $9 | urgent |
| #352 | Add ByKaranteli to the ecosystem (Infrastructure & Tooling) | ecosystem listing | Base, Solana, USDC | n/a | urgent |
| #300 | Add Backtesting Arena to ecosystem (Services/Endpoints) | ecosystem listing | Base, USDC, mainnet | $0.5 | urgent |
| #351 | ecosystem: add Miorail (Services/Endpoints) | ecosystem listing | Base, USDC, mainnet | n/a | urgent |
| #340 | Add DrinkedIn to ecosystem directory (Services/Endpoints) | ecosystem listing | Base, Base Sepolia, USDC, testnet | n/a | review |
| #350 | Add x402.eleeth.com to the ecosystem directory (Services/Endpoints) | ecosystem listing | Base, USDC, mainnet | n/a | urgent |
| #348 | feat(ecosystem): add crosscheck | ecosystem listing | Base, Base Sepolia, USDC, mainnet, testnet | $0.02 | urgent |
| ecosystem listing | 83 |
| docs / discovery | 9 |
| protocol implementation | 8 |
| Base | 73 |
| USDC | 66 |
| mainnet | 48 |
| Solana | 21 |
| testnet | 9 |
| Base Sepolia | 6 |
private pass
Send a manifest, MCP endpoint, OpenAPI file, ecosystem PR, or no-payment 402 response. The fixed-scope review returns a spend map, discovery gaps, browser/payment-header notes, metadata risks, replay/failure checks, and patch order. Owner-authorized surfaces only.