mahastrategies-com Context Compiler API

openapi: 3.2.0
info:
  title: Maha Strategies MPS Context Compiler API
  version: '0.1'
  description: 'The Maha Provenance Standard (MPS) API runs claim-level provenance audits over prose. Every factual claim in a passage is excerpted, tagged (VERIFIED, SOURCED, BOUNDARY, ILLUSTRATIVE, UNVERIFIED), and returned with a rationale and a recommended action — so agents and editors can verify before they publish.


    ## Local bridge (CLI)


    Install the open-source local bridge and point Claude Code, Cursor, or any MCP client at it:


    ```sh

    npm install -g @mahastrategies/maha-mcp-bridge

    maha login # verify and store your credential

    maha serve # start the stdio MCP server

    ```


    Raw rows and credentials stay local; only locally-redacted context reaches the agent''s cloud model.


    ## Authentication


    Commercial endpoints use bearer credentials:


    ```

    Authorization: Bearer mhaic_your_credential_here

    ```


    Credentials are shown **exactly once** at purchase. Store them in a secret manager; never commit them, log them, or place them in URLs. Each credential is scoped to the MPS audit capability only — it cannot touch any other service. Lost credentials cannot be recovered, only replaced.


    The free preflight endpoint (`POST /api/audit`) needs no credential and is limited per visitor per day.


    ## The credit system


    Paid audits are prepaid. Each successful audit consumes one `mps_audit_invocation` credit; failed audits are refunded automatically in the same ledger.


    When a credential runs out of credits, the API responds with **`402 Payment Required`**:


    ```json

    {

    "error": { "code": "payment_required", "message": "This prepaid credential has no audit credits remaining." },

    "purchase": { "href": "/mps/audit-access", "checkoutEndpoint": "/api/mps-credits/checkout", "unit": "mps_audit_invocation" }

    }

    ```


    Treat `402` as a routine signal, not an error: follow `purchase.href` to buy another pack, or call the checkout endpoint programmatically. Balances live in an append-only double-entry ledger — every grant, consumption, refund, and manual correction is a permanent, hash-chained row.


    ## Idempotency and webhook resilience


    **Requests**: every audit takes a `clientRequestId` you choose (8–120 characters). Retrying with the same id and the same text returns the original result with `idempotentReplay: true` — never a duplicate charge. The same id with *different* text returns `409 Conflict`. Safe retry loop: keep the same id until you get a terminal status.


    **Payments**: Stripe webhooks are processed exactly once. Each event id is claimed atomically in the same database transaction that moves credits, so a redelivered webhook can never double-credit a balance — duplicates get `200 OK` with `"duplicate": true` and change nothing. A crash between claim and grant rolls both back together. You never need to reconcile double-grants; the ledger cannot express them.'
  contact:
    name: Maha Strategies
    url: https://www.mahastrategies.com/contact
servers:
- url: https://www.mahastrategies.com
tags:
- name: Context Compiler
  description: Deterministic, source-linked context-pack compilation with privacy-safe measurement.
paths:
  /api/context-packs:
    post:
      tags:
      - Context Compiler
      operationId: compileContextPack
      summary: Compile bounded, source-linked context for an agent task
      description: Deduplicates and ranks supplied text deterministically against a stated task, returning a Context Pack with source references and model-neutral estimated-token metrics. The source text and compiled pack are not retained in the service ledger.
      security:
      - credential: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - clientRequestId
              - task
              - tokenBudget
              - documents
              properties:
                clientRequestId:
                  type: string
                  minLength: 8
                  maxLength: 120
                task:
                  type: string
                  minLength: 8
                  maxLength: 1200
                tokenBudget:
                  type: integer
                  minimum: 64
                  maximum: 16000
                documents:
                  type: array
                  minItems: 1
                  maxItems: 8
                  items:
                    type: object
                    required:
                    - id
                    - text
                    properties:
                      id:
                        type: string
                      title:
                        type: string
                      text:
                        type: string
                        minLength: 1
      responses:
        '201':
          description: Compiled Context Pack; source text and compiled context were returned transiently only.
          content:
            application/json:
              schema:
                type: object
                required:
                - packId
                - context
                - metrics
                - sources
                - warnings
                properties:
                  packId:
                    type: string
                  context:
                    type: string
                  metrics:
                    type: object
                  sources:
                    type: array
                  warnings:
                    type: array
                    items:
                      type: string
                  sourceTextStored:
                    const: false
                  compiledContextStored:
                    const: false
        '400':
          description: Invalid Context Pack request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Missing or invalid Context Compiler credential.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '403':
          description: Credential lacks the context_compile capability.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '409':
          description: clientRequestId was already used with different inputs.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '413':
          description: Request exceeds the 128 KB input limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
  /api/context-pack-evaluations:
    post:
      tags:
      - Context Compiler
      operationId: evaluateContextPack
      summary: Measure Context Pack efficiency and declared evidence retention
      description: Compiles a bounded Context Pack and checks whether each caller-declared exact evidence span from a supplied source document remains in the output. This is deterministic span retention, not factual verification or downstream answer-quality evaluation.
      security:
      - credential: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - clientRequestId
              - task
              - tokenBudget
              - documents
              - requiredEvidence
              properties:
                clientRequestId:
                  type: string
                task:
                  type: string
                tokenBudget:
                  type: integer
                  minimum: 64
                  maximum: 16000
                documents:
                  type: array
                  minItems: 1
                  maxItems: 8
                  items:
                    type: object
                requiredEvidence:
                  type: array
                  minItems: 1
                  maxItems: 32
                  items:
                    type: object
                    required:
                    - evidenceId
                    - sourceId
                    - text
                    properties:
                      evidenceId:
                        type: string
                      sourceId:
                        type: string
                      text:
                        type: string
      responses:
        '201':
          description: Privacy-safe evaluation result, including retained or omitted status for each declared evidence span.
          content:
            application/json:
              schema:
                type: object
                required:
                - evaluationId
                - metrics
                - evidence
                - warnings
                properties:
                  evaluationId:
                    type: string
                  metrics:
                    type: object
                  evidence:
                    type: array
                  warnings:
                    type: array
                    items:
                      type: string
                  requiredEvidenceTextStored:
                    const: false
        '400':
          description: Invalid source document or required evidence declaration.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Missing or invalid Context Compiler credential.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '403':
          description: Credential lacks the context_compile capability.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '409':
          description: clientRequestId was already used with different inputs.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '413':
          description: Request exceeds the 128 KB input limit.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
components:
  schemas:
    ErrorEnvelope:
      type: object
      required:
      - error
      properties:
        error:
          type: object
          required:
          - code
          - message
          properties:
            code:
              type: string
              description: Stable machine-readable error code.
            message:
              type: string
              description: Human-readable explanation.
  securitySchemes:
    credential:
      type: http
      scheme: bearer
      description: MPS client credential (`mhaic_…`), issued once at purchase.