docs: update x402 documentation for delegation flow#145
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docs: update x402 documentation for delegation flow#145
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Update all documentation to reflect the delegation-based token generation flow that replaces the old session-key permissions model. Key changes across all files: - getX402AccessToken / get_x402_access_token now requires delegationConfig - CardDelegationConfig renamed to DelegationConfig - sessionKeyConfig, redemptionLimit, orderLimit, expiration removed - New createDelegation API documented for both stripe and erc4337 - Both crypto and card schemes now use the unified delegation model Docs updated (5 files): - specs/x402-card-delegation.mdx → renamed to "Delegation Extension" - integrate/patterns/stablecoin-payments.mdx → delegation replaces session keys - integrate/patterns/fiat-payments.mdx → DelegationConfig shared model - development-guide/nevermined-x402.mdx → updated token gen examples - products/x402-facilitator/how-it-works.mdx → updated step 2 flow Skills updated (5 files): - SKILL.md → all getX402AccessToken calls include delegationConfig - references/client-integration.md → 6 calls updated - references/a2a-integration.md → 1 call updated - references/mcp-paywall.md → 1 call updated - references/strands-integration.md → 1 call updated Related PRs: - nevermined-io/nvm-monorepo#1102 (backend) - nevermined-io/payments#274 (TypeScript SDK) - nevermined-io/payments-py#167 (Python SDK) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
aaitor
approved these changes
Mar 20, 2026
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Summary
Updates all documentation to reflect the delegation-based token generation flow from PRs:
Breaking changes documented:
getX402AccessToken()/get_x402_access_token()now requiresdelegationConfigCardDelegationConfigrenamed toDelegationConfigsessionKeyConfig,redemptionLimit,orderLimit,expirationparams removedcreateDelegation()API for bothstripeanderc4337providersFiles updated:
Docs (5 files):
specs/x402-card-delegation.mdx— renamed to "Delegation Extension", covers both crypto and cardintegrate/patterns/stablecoin-payments.mdx— delegation replaces session keysintegrate/patterns/fiat-payments.mdx— DelegationConfig shared modeldevelopment-guide/nevermined-x402.mdx— updated token generation examplesproducts/x402-facilitator/how-it-works.mdx— updated step 2 flow with both patternsSkills (5 files):
SKILL.md— all getX402AccessToken calls updated with delegationConfigreferences/client-integration.md— 6 calls updatedreferences/a2a-integration.md— 1 call updatedreferences/mcp-paywall.md— 1 call updatedreferences/strands-integration.md— 1 call updatedTest plan
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