Primitive Webhook Deliveries API

View and replay webhook delivery attempts

Operations 2

GET /webhooks/deliveries List webhook deliveries #
POST /webhooks/deliveries/{id}/replay Replay a webhook delivery #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/primitive-webhook-deliveries-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

primitive-webhook-deliveries-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Primitive Webhook Deliveries API
  version: 1.0.0
  description: Primitive is email infrastructure for AI agents.
  contact:
    name: Primitive
    url: https://primitive.dev
  license:
    name: Proprietary
    url: https://primitive.dev/terms
  x-stability-level: stable
  x-deprecation-policy: 'Breaking changes are announced at least 6 months in advance. Deprecated fields carry x-deprecated: true. The current stable version is v1.'
servers:
- url: https://api.primitive.dev/v1
  description: Canonical API host (PRIMITIVE_API_BASE_URL). Carries every public API operation.
tags:
- name: Webhook Deliveries
  description: View and replay webhook delivery attempts
paths:
  /webhooks/deliveries:
    get:
      operationId: listDeliveries
      summary: List webhook deliveries
      description: 'Returns a paginated list of webhook delivery attempts. Each delivery

        includes a nested `email` object with sender, recipient, and subject.'
      tags:
      - Webhook Deliveries
      parameters:
      - name: cursor
        in: query
        schema:
          type: string
        description: 'Pagination cursor from a previous response''s `meta.cursor` field.

          Format: `{ISO-datetime}|{id}`

          '
      - name: limit
        in: query
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 50
        description: Number of results per page
      - name: email_id
        in: query
        schema:
          type: string
          format: uuid
        description: Filter by email ID
      - name: status
        in: query
        schema:
          type: string
          enum:
          - pending
          - delivered
          - header_confirmed
          - failed
        description: Filter by delivery status
      - name: date_from
        in: query
        schema:
          type: string
          format: date-time
        description: Filter deliveries created on or after this timestamp
      - name: date_to
        in: query
        schema:
          type: string
          format: date-time
        description: Filter deliveries created on or before this timestamp
      responses:
        '200':
          description: Paginated list of deliveries
          content:
            application/json:
              schema:
                allOf:
                - type: object
                  properties:
                    success:
                      type: boolean
                      const: true
                    meta:
                      type: object
                      properties:
                        total:
                          type: integer
                          description: Total number of matching records
                        limit:
                          type: integer
                          description: Page size used for this request
                        cursor:
                          type:
                          - string
                          - 'null'
                          description: Cursor for the next page, or null if no more results
                      required:
                      - total
                      - limit
                      - cursor
                  required:
                  - success
                  - data
                  - meta
                - type: object
                  properties:
                    data:
                      type: array
                      items:
                        type: object
                        properties:
                          id:
                            type: string
                            description: Delivery ID (numeric string)
                          email_id:
                            type: string
                            format: uuid
                          org_id:
                            type: string
                            format: uuid
                          endpoint_id:
                            type: string
                            format: uuid
                          endpoint_url:
                            type: string
                          status:
                            type: string
                            enum:
                            - pending
                            - delivered
                            - header_confirmed
                            - failed
                          attempt_count:
                            type: integer
                          duration_ms:
                            type:
                            - integer
                            - 'null'
                          last_error:
                            type:
                            - string
                            - 'null'
                          created_at:
                            type: string
                            format: date-time
                          updated_at:
                            type: string
                            format: date-time
                          email:
                            type:
                            - object
                            - 'null'
                            properties:
                              sender:
                                type: string
                              recipient:
                                type: string
                              subject:
                                type:
                                - string
                                - 'null'
                            required:
                            - sender
                            - recipient
                        required:
                        - id
                        - email_id
                        - org_id
                        - endpoint_id
                        - endpoint_url
                        - status
                        - attempt_count
                        - created_at
                        - updated_at
          headers:
            ratelimit-limit:
              description: Maximum number of requests allowed in the current window.
              schema:
                type: integer
                minimum: 1
                example: 120
            ratelimit-remaining:
              description: Remaining requests in the current window.
              schema:
                type: integer
                minimum: 0
                example: 118
            ratelimit-reset:
              description: Unix timestamp (seconds) when the current window resets.
              schema:
                type: integer
                example: 1700000060
            ratelimit-policy:
              description: Rate-limit policy in `limit;w=seconds` format, e.g. `120;w=60`.
              schema:
                type: string
                example: 120;w=60
        '400':
          $ref: '#/components/responses/ValidationError'
          description: Invalid request parameters
        '401':
          $ref: '#/components/responses/Unauthorized'
          description: Invalid or missing API key
      security:
      - BearerAuth: []
  /webhooks/deliveries/{id}/replay:
    parameters:
    - name: id
      in: path
      required: true
      schema:
        type: string
        pattern: ^\d+$
      description: Delivery ID (numeric)
    post:
      operationId: replayDelivery
      summary: Replay a webhook delivery
      description: 'Re-sends the stored webhook payload from a previous delivery attempt.

        If the original endpoint is still active, it is targeted. If the

        original endpoint was deleted, the oldest active endpoint is used.

        Deactivated endpoints cannot be replayed to. Rate limited per-org,

        sharing an org-wide budget with email replays.'
      tags:
      - Webhook Deliveries
      responses:
        '200':
          description: Replay result
          content:
            application/json:
              schema:
                allOf:
                - type: object
                  properties:
                    success:
                      type: boolean
                      const: true
                  required:
                  - success
                  - data
                - type: object
                  properties:
                    data:
                      type: object
                      properties:
                        delivered:
                          type: integer
                          description: Number of successful deliveries
                        failed:
                          type: integer
                          description: Number of failed deliveries
                      required:
                      - delivered
                      - failed
          headers:
            ratelimit-limit:
              description: Maximum number of requests allowed in the current window.
              schema:
                type: integer
                minimum: 1
                example: 120
            ratelimit-remaining:
              description: Remaining requests in the current window.
              schema:
                type: integer
                minimum: 0
                example: 118
            ratelimit-reset:
              description: Unix timestamp (seconds) when the current window resets.
              schema:
                type: integer
                example: 1700000060
            ratelimit-policy:
              description: Rate-limit policy in `limit;w=seconds` format, e.g. `120;w=60`.
              schema:
                type: string
                example: 120;w=60
        '400':
          $ref: '#/components/responses/ValidationError'
          description: Invalid request parameters
        '401':
          $ref: '#/components/responses/Unauthorized'
          description: Invalid or missing API key
        '404':
          $ref: '#/components/responses/NotFound'
          description: Resource not found
        '429':
          $ref: '#/components/responses/RateLimited'
          description: Rate limit exceeded
      security:
      - BearerAuth: []
      parameters:
      - name: Idempotency-Key
        in: header
        required: false
        description: Optional client-supplied idempotency key. Retrying a request with the same key returns the original result instead of performing the action a second time; if omitted the server derives one from the canonical payload hash. Safe to retry network failures without duplicating side effects.
        schema:
          type: string
          minLength: 1
          maxLength: 255
components:
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error:
              code: not_found
              message: Resource not found
    RateLimited:
      description: Rate limit exceeded
      headers:
        Retry-After:
          schema:
            type: integer
          description: Seconds to wait before retrying
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error:
              code: rate_limit_exceeded
              message: Rate limit exceeded
    Unauthorized:
      description: Invalid or missing API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error:
              code: unauthorized
              message: Invalid or missing API key
    ValidationError:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            success: false
            error:
              code: validation_error
              message: Invalid domain format
  schemas:
    ErrorResponse:
      type: object
      properties:
        success:
          type: boolean
          const: false
        error:
          type: object
          properties:
            code:
              type: string
              enum:
              - unauthorized
              - forbidden
              - not_found
              - validation_error
              - rate_limit_exceeded
              - internal_error
              - conflict
              - mx_conflict
              - outbound_disabled
              - cannot_send_from_domain
              - recipient_not_allowed
              - outbound_key_missing
              - outbound_unreachable
              - outbound_key_invalid
              - outbound_capacity_exhausted
              - outbound_response_malformed
              - outbound_relay_failed
              - discard_not_enabled
              - inbound_not_repliable
              - search_timeout
              - authorization_pending
              - slow_down
              - access_denied
              - expired_token
              - invalid_device_code
              - invalid_signup_code
              - invalid_signup_token
              - invalid_verification_code
              - email_delivery_failed
              - clerk_signup_failed
              - no_orgs_for_user
              - org_not_accessible
              - feature_disabled
              - memory_conflict
              - developer_usage_credit_exhausted
              - no_payout_address
              - ownership_proof_failed
              - payment_verification_failed
              - payment_declined
              - challenge_expired
              - settlement_failed
              - template_not_installable
              - scaffold_only
              - invalid_variables
              - unknown_secrets
              - missing_secrets
              - no_inbound_domain
              - domain_cannot_send
              - address_taken
              - route_cap_reached
              - name_exhausted
            message:
              type: string
            details:
              type: object
              description: 'Optional structured data that callers can inspect to recover

                from the error. The fields present depend on `code`. Additional

                keys may be added over time without a major-version bump.

                '
              additionalProperties: true
              properties:
                mx_conflict:
                  type: object
                  description: Present when `code == mx_conflict`.
                  required:
                  - provider_name
                  - suggested_subdomain
                  properties:
                    provider_name:
                      type: string
                      description: Human-readable name of the detected mailbox provider (e.g. "Google Workspace").
                    suggested_subdomain:
                      type: string
                      description: Subdomain to try instead (e.g. "mail" for `mail.example.com`).
                required_entitlements:
                  type: array
                  items:
                    type: string
                  description: Entitlements that would allow a denied send when no recipient-scope gate was granted.
                sent_email_id:
                  type: string
                  description: ID of the persisted sent-email attempt associated with the error.
                content_hash:
                  type: string
                  description: Content hash of the original request on idempotency cache-hit errors.
                client_idempotency_key:
                  type: string
                  description: Effective idempotency key associated with the original request.
            gates:
              type: array
              items:
                $ref: '#/components/schemas/GateDenial'
              description: Structured per-gate denial detail for recipient-scope send-mail failures.
            request_id:
              type: string
              description: Server-issued request identifier for support and tracing.
          required:
          - code
          - message
      required:
      - success
      - error
    GateDenial:
      type: object
      properties:
        name:
          type: string
          enum:
          - send_to_confirmed_domains
          - send_to_known_addresses
          description: Public recipient-scope gate name that denied the send.
        reason:
          type: string
          enum:
          - domain_not_confirmed
          - recipient_unauthenticated
          - recipient_not_known
          description: Stable machine-readable denial reason.
        message:
          type: string
          description: Human-readable explanation of the gate denial.
        subject:
          type: string
          description: Domain or address the gate evaluated.
        fix:
          $ref: '#/components/schemas/GateFix'
        docs_url:
          type: string
          description: Public docs URL with more context.
      required:
      - name
      - reason
      - message
      - subject
    GateFix:
      type: object
      properties:
        action:
          type: string
          enum:
          - confirm_domain
          - sender_must_fix_authentication
          - wait_for_inbound
          description: Suggested next action for the caller.
        subject:
          type: string
          description: Entity the action applies to.
      required:
      - action
      - subject
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: 'API key with `prim_` prefix or OAuth access token with `prim_oat_` prefix: `Authorization: Bearer <token>`. Access is governed by the caller''s organization role (`owner`, `admin`, or `member`): API keys always act at `member` level regardless of who created them, and OAuth access tokens act with the authorizing user''s current organization role, resolved per request. Every operation in this spec is available to organization members; billing and organization administration are owner/admin actions performed in the dashboard and are not part of this API.'
    DownloadToken:
      type: apiKey
      in: query
      name: token
      description: Signed download token provided in webhook payloads