Telnyx Memory API

openapi: 3.2.0
info:
  version: 2.0.0
  x-latency-category: responsive
  x-endpoint-cost: light
  title: Telnyx Memory API
  description: SIP trunking, SMS, MMS, Call Control and Telephony Data Services.
  contact:
    email: support@telnyx.com
servers:
- url: https://api.telnyx.com/v2
  description: Version 2.0.0 of the Telnyx API
security:
- bearerAuth: []
tags:
- name: Memory
  description: Write memories into a profile and recall them.
paths:
  /ai/memory/namespaces/{namespace}/profiles/{profile_id}/ingest:
    post:
      summary: Ingest a session's messages into a profile
      operationId: IngestSession
      tags:
      - Memory
      description: 'Store a session. Facts are extracted from whatever you send — the body is taken as any JSON value and stored whole, so a framework''s own transcript shape works unchanged. `messages` of `role`/`content` is the conventional shape, not a requirement. An empty object or a null body is refused. Carry a `session_id` to name the session: re-ingesting the same one replaces what it held. Omit it and a session is opened and returned. Extraction runs asynchronously — poll the returned operation.'
      parameters:
      - name: profile_id
        in: path
        required: true
        schema:
          type: string
          title: Profile Id
      - name: namespace
        in: path
        required: true
        schema:
          type: string
          title: Namespace
      - name: session_id
        in: query
        required: false
        schema:
          anyOf:
          - type: string
            maxLength: 128
          - type: 'null'
          description: 'Names the session. Re-ingesting the same session replaces what it held and keeps its `source_id`. Omit it to have one derived from the content and returned. No whitespace, control characters, or any of / \ # ? %.'
          title: Session Id
        description: 'Names the session. Re-ingesting the same session replaces what it held and keeps its `source_id`. Omit it to have one derived from the content and returned. No whitespace, control characters, or any of / \ # ? %.'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/IngestPayload'
            examples:
              session:
                summary: A session you name
                value:
                  messages:
                  - role: user
                    content: Invoices go to 220 W Chicago Ave now.
                  - role: assistant
                    content: Got it.
              new_session:
                summary: A new session, opened for you
                value:
                  messages:
                  - role: user
                    content: I prefer email.
      responses:
        '202':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IngestResponse'
              example:
                data:
                  operation_id: op_01HZY4M7Q9
                  profile_id: caller:+13128675309
                  session_id: conv_8901
                  source_id: b1e6c0a2-4f3d-4a2e-9c7b-8e1f2a3b4c5d
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: '10009'
                  title: Authentication failed
                  detail: Could not find any usable credentials in the request.
                  source:
                    pointer: /
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10009
        '404':
          description: The namespace does not exist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: namespace_not_found
                  detail: no such namespace
        '422':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: empty_payload
                  detail: payload must carry something to remember
        '502':
          description: Upstream error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: upstream_error
                  detail: the memory dataplane is unavailable
  /ai/memory/namespaces/{namespace}/profiles/{profile_id}/recall:
    post:
      summary: Recall a profile's memories, ranked
      operationId: RecallMemories
      tags:
      - Memory
      parameters:
      - name: profile_id
        in: path
        required: true
        schema:
          type: string
          title: Profile Id
      - name: namespace
        in: path
        required: true
        schema:
          type: string
          title: Namespace
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RecallRequest'
            example:
              query: where do invoices go?
              top_k: 5
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RecallResponse'
              example:
                data:
                - id: mem_01HZY4
                  text: Invoices go to 220 W Chicago Ave.
                  recorded_at: '2026-08-26T21:14:11Z'
                  score: 0.82
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: '10009'
                  title: Authentication failed
                  detail: Could not find any usable credentials in the request.
                  source:
                    pointer: /
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10009
        '404':
          description: The namespace does not exist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: namespace_not_found
                  detail: no such namespace
        '422':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: invalid_request
                  detail: 'body.query: String should have at least 1 character'
        '502':
          description: Upstream error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: upstream_error
                  detail: the memory dataplane is unavailable
      description: Ranked memories for a question. Matching runs over the profile's memories and returns them in rank order with a relevance `score`; the score is null where the deployment's reranker is a passthrough, in which case order is the only signal. No model runs in this path — recall returns facts, it does not compose an answer.
  /ai/memory/namespaces/{namespace}/profiles/{profile_id}/remember:
    post:
      summary: Remember one fact, stored as written
      operationId: RememberFact
      tags:
      - Memory
      description: 'For a fact the agent has already distilled: `text` is stored as given, with nothing extracted from it. Send a transcript to `ingest` instead. Remembering the same text again writes the same memory rather than a second copy of it, so a retry is safe. The write runs asynchronously -- poll the returned operation.'
      parameters:
      - name: profile_id
        in: path
        required: true
        schema:
          type: string
          title: Profile Id
      - name: namespace
        in: path
        required: true
        schema:
          type: string
          title: Namespace
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RememberRequest'
            example:
              text: Prefers window seats and flies out of ORD
      responses:
        '202':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RememberResponse'
              example:
                data:
                  operation_id: op_01HZY4M7Q9
                  profile_id: caller:+13128675309
                  source_id: 9af23d17-2b6c-4d8e-a1f0-3c4b5d6e7f80
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: '10009'
                  title: Authentication failed
                  detail: Could not find any usable credentials in the request.
                  source:
                    pointer: /
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10009
        '404':
          description: The namespace does not exist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: namespace_not_found
                  detail: no such namespace
        '422':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: invalid_request
                  detail: 'body.text: String should have at least 1 character'
        '502':
          description: Upstream error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: upstream_error
                  detail: the memory dataplane is unavailable
  /ai/memory/namespaces/{namespace}/profiles/{profile_id}/summary:
    get:
      summary: Get a profile's precomputed summary
      operationId: GetProfileSummary
      tags:
      - Memory
      description: 'The whole profile as one card, precomputed, with no query. Built for the start of a session, where there is no question to ask yet.


        A summary is generated in the background. `is_stale` tells you newer memories have arrived since it was written; that is ordinary and the card is still usable.'
      parameters:
      - name: namespace
        in: path
        required: true
        schema:
          type: string
          description: The namespace. `default` exists for every organization.
        description: The namespace. `default` exists for every organization.
      - name: profile_id
        in: path
        required: true
        schema:
          type: string
        description: 'The profile: your identifier for the user, caller or agent this memory is about.'
      responses:
        '200':
          description: The profile's summary
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SummaryResponse'
              example:
                data:
                  profile_id: user-42
                  text: '## Profile Summary


                    - Prefers Slack over email.

                    - Timezone: US Central.'
                  generated_at: '2026-09-18T18:32:17.501833+00:00'
                  is_stale: false
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: '10009'
                  title: Authentication failed
                  detail: Could not find any usable credentials in the request.
                  source:
                    pointer: /
                  meta:
                    url: https://developers.telnyx.com/docs/overview/errors/10009
        '404':
          description: The namespace does not exist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: namespace_not_found
                  detail: no such namespace
        '502':
          description: Upstream error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TelnyxErrors'
              example:
                errors:
                - code: upstream_error
                  detail: the memory dataplane is unavailable
components:
  schemas:
    AcceptedMemory:
      properties:
        operation_id:
          type: string
          title: Operation Id
        profile_id:
          type: string
          title: Profile Id
        source_id:
          type: string
          title: Source Id
          description: 'Identifies one source within its profile: an ingested session, or one remembered fact. Returned by `ingest` and `remember` when the write is accepted. Re-ingesting a session keeps its source id.'
      type: object
      required:
      - operation_id
      - profile_id
      - source_id
      title: AcceptedMemory
    RecallRequest:
      properties:
        query:
          type: string
          maxLength: 4096
          minLength: 1
          title: Query
        top_k:
          anyOf:
          - type: integer
            maximum: 100
            minimum: 1
          - type: 'null'
          title: Top K
      type: object
      required:
      - query
      title: RecallRequest
    IngestPayload:
      title: Payload
      description: 'The session''s messages, in whatever shape your framework produces. Any JSON value but null is accepted and stored whole, as long as it holds something to remember: a body with no content anywhere in it -- `{}`, `[]`, `""`, `{"messages": []}` -- is a 422.'
      anyOf:
      - type: object
        additionalProperties: true
      - type:
        - array
        - string
        - number
        - boolean
    SummaryResponse:
      properties:
        data:
          $ref: '#/components/schemas/ProfileSummary'
      type: object
      required:
      - data
      title: SummaryResponse
    IngestResponse:
      properties:
        data:
          $ref: '#/components/schemas/AcceptedIngest'
      type: object
      required:
      - data
      title: IngestResponse
    TelnyxErrors:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/TelnyxError'
    ProfileSummary:
      properties:
        profile_id:
          type: string
          title: Profile Id
        text:
          anyOf:
          - type: string
          - type: 'null'
          title: Text
          description: The precomputed summary, ready to place in an assistant's context at the start of a session.
        generated_at:
          anyOf:
          - type: string
          - type: 'null'
          title: Generated At
          description: When the summary was last generated. Null while none is ready.
        is_stale:
          type: boolean
          title: Is Stale
          description: Whether newer memories have arrived since the summary was generated. The summary is regenerated in the background, so a true here is ordinary and the summary is still usable.
      type: object
      required:
      - profile_id
      - is_stale
      title: ProfileSummary
    RecallResponse:
      properties:
        data:
          items:
            $ref: '#/components/schemas/RecalledMemory'
          type: array
          title: Data
      type: object
      required:
      - data
      title: RecallResponse
    RememberResponse:
      properties:
        data:
          $ref: '#/components/schemas/AcceptedMemory'
      type: object
      required:
      - data
      title: RememberResponse
    RecalledMemory:
      properties:
        id:
          type: string
          title: Id
        text:
          type: string
          title: Text
        recorded_at:
          anyOf:
          - type: string
          - type: 'null'
          title: Recorded At
        score:
          anyOf:
          - type: number
            minimum: 0
            maximum: 1
          - type: 'null'
          title: Score
          description: Relevance, 0-1. Null where the deployment's reranker is a passthrough; results are in rank order either way.
      type: object
      required:
      - id
      - text
      title: RecalledMemory
    RememberRequest:
      properties:
        text:
          type: string
          minLength: 1
          title: Text
      type: object
      required:
      - text
      title: RememberRequest
    TelnyxError:
      type: object
      properties:
        code:
          type: string
        title:
          type: string
        detail:
          type: string
        source:
          type: object
          properties:
            pointer:
              type: string
        meta:
          type: object
          properties:
            url:
              type: string
    AcceptedIngest:
      properties:
        operation_id:
          type: string
          title: Operation Id
        profile_id:
          type: string
          title: Profile Id
        session_id:
          type: string
          title: Session Id
        source_id:
          type: string
          title: Source Id
          description: 'Identifies one source within its profile: an ingested session, or one remembered fact. Returned by `ingest` and `remember` when the write is accepted. Re-ingesting a session keeps its source id.'
      type: object
      required:
      - operation_id
      - profile_id
      - session_id
      - source_id
      title: AcceptedIngest
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Telnyx API key supplied as `Authorization: Bearer <token>`. In production, auth may be validated by the API gateway and forwarded via Telnyx auth headers.'
    Payment:
      type: apiKey
      in: header
      name: Authorization
      description: 'Machine Payment Protocol credential used on paid retries, sent as `Authorization: Payment ...`. Obtained by paying a challenge returned in the `WWW-Authenticate` header of a 402 response. This is not a Telnyx API key; initial challenge requests use standard bearer authentication instead.'
    agent-memory_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
    bearerAuth:
      type: http
      scheme: bearer
    branded-calling_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    collections_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Collections and results are automatically scoped to the authenticated user's organization.
    number-reputation_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    oauthClientAuth:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
        authorizationCode:
          authorizationUrl: https://api.telnyx.com/v2/oauth/authorize
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          refreshUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
      description: OAuth 2.0 authentication for Telnyx API and MCP integrations
    outbound-voice-profiles_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    pronunciation-dicts_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API v2 key. Obtain from https://portal.telnyx.com
    rcs-registration_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
    stored-payment-transactions_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    transcriptions-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Results are automatically scoped to the authenticated user's organization.
    web-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
x-service-info:
  categories:
  - communication
  - developer-tools
  docs:
    apiReference: https://developers.telnyx.com
    homepage: https://telnyx.com
    llms: https://telnyx.com/llms.txt