> ## Documentation Index > Fetch the complete documentation index at: https://docs.paywithlocus.com/llms.txt > Use this file to discover all available pages before exploring further. # Create a human funding handoff > Creates an exact-amount, one-hour Stripe Checkout Session for the authenticated agent account. The payer card is not attached to the agent account for future use. Reuse the Idempotency-Key for retries of the same logical link. ## OpenAPI ````yaml /api-reference/openapi.json post /credits/agent/funding-sessions openapi: 3.1.0 info: title: Locus Pro API description: >- Production is live at https://api.paywithlocus.com/api. Stage remains available for evaluation and integration testing at https://api.stage.paywithlocus.com/api; credentials, balances, and tenant data are isolated by environment. Embedded prepaid credits over the Locus pay-per-use catalog. Money and top-up amounts use exact decimal strings (up to 6dp). Every burn requires an Idempotency-Key header. Management routes accept a tenant secret key or authorized dashboard session as shown per operation. Widget routes accept an end-user JWT alone; when a publishable key is present it must belong to the JWT's tenant. MCP uses OAuth 2.1 Authorization Code with PKCE by default and also accepts the explicitly documented tenant secret key, end-user JWT, or scoped agent connection compatibility credentials. Burns accept the execution credentials shown per operation. Publishable keys never authorize management or burns by themselves. version: 0.6.0 servers: - url: https://api.paywithlocus.com/api description: Production - url: https://api.stage.paywithlocus.com/api description: Stage — evaluation and integration testing security: - secretKey: [] tags: - name: Authentication description: Email-verified self-serve account creation and dashboard identity - name: Tenants description: Tenant profile, keys, and settings (dashboard session or secret key) - name: Workspace members description: Invite-only human workspace membership and role administration - name: Catalog description: Enable/disable APIs and set markups - name: Custom APIs description: >- Available when enabled for the workspace. Enterprise BYOK providers and schema-backed custom actions - name: End users description: End-user accounts, tokens, and allocations - name: Top-ups description: Locus-hosted checkout top-ups and quotes - name: Ledger description: Burn/top-up history and earnings - name: Webhooks description: Signed events, delivery inspection, and replay - name: Burn description: Metered pay-per-use calls - name: Travel routing description: >- Available when enabled for the workspace. Multi-provider flight search, no-dispatch planning, and feedback - name: MCP description: Stateless Streamable HTTP transport and MCP tool-result contracts - name: Okibi Identity description: >- Available when enabled for the workspace. Okibi identity verification and scoped native CLI credential bootstrap - name: Widget description: End-user JWT surface; a matching publishable key is optional - name: Agent-native onboarding description: >- Self-registration, human Stripe funding handoff, and restricted account setup for headless agents - name: Agent connections description: Scoped, expiring, revocable credentials for agent execution - name: Capability routing description: Outcome-level web search and research across eligible catalog providers paths: /credits/agent/funding-sessions: post: tags: - Agent-native onboarding summary: Create a human funding handoff description: >- Creates an exact-amount, one-hour Stripe Checkout Session for the authenticated agent account. The payer card is not attached to the agent account for future use. Reuse the Idempotency-Key for retries of the same logical link. parameters: - name: Idempotency-Key in: header required: true schema: type: string minLength: 1 maxLength: 255 requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/AgentFundingAmount' responses: '201': description: Stripe funding handoff created content: application/json: schema: $ref: '#/components/schemas/AgentFundingSession' '400': description: Invalid amount or missing Idempotency-Key '403': description: Not the self-registered account credential or funding is disabled '429': description: Funding-link rate limit exceeded security: - agentConnection: [] components: schemas: AgentFundingAmount: oneOf: - type: object required: - usd not: required: - credits properties: usd: $ref: '#/components/schemas/DecimalString' additionalProperties: false - type: object required: - credits not: required: - usd properties: credits: $ref: '#/components/schemas/DecimalString' additionalProperties: false AgentFundingSession: type: object additionalProperties: false required: - success - fundingSessionId - checkoutUrl - statusUrl - expiresAt - quote - humanHandoff - pollAfterMs properties: success: const: true fundingSessionId: type: string pattern: ^cs_ checkoutUrl: type: string format: uri description: Share only this Stripe-hosted URL with the human payer. statusUrl: type: string format: uri expiresAt: type: - string - 'null' format: date-time quote: $ref: '#/components/schemas/AgentFundingQuote' humanHandoff: type: object additionalProperties: false required: - message - instruction properties: message: type: string instruction: type: string pollAfterMs: type: integer minimum: 1000 DecimalString: type: string pattern: ^\d+(?:\.\d{1,6})?$ description: >- Non-negative exact decimal string with at most six fractional digits. Endpoint-specific positivity and amount limits still apply. AgentFundingQuote: type: object additionalProperties: false required: - feeMode - creditsUsd - credits - feeUsd - totalUsd properties: feeMode: type: string enum: - pass_through - absorb creditsUsd: $ref: '#/components/schemas/DecimalString' credits: $ref: '#/components/schemas/DecimalString' feeUsd: $ref: '#/components/schemas/DecimalString' totalUsd: $ref: '#/components/schemas/DecimalString' securitySchemes: secretKey: type: http scheme: bearer description: Tenant secret key (lcr_…). Server-side only. agentConnection: type: http scheme: bearer description: >- Scoped lcac_ credential. Tenant-managed Agent Connections authorize only their bound MCP and wrapped execution surfaces. A bootstrap connection for a self-registered agent additionally authorizes the explicit /credits/agent/* self-service routes for its own account; neither form authorizes general tenant management. ````