> ## Documentation Index > Fetch the complete documentation index at: https://docs.lumeus.dev/llms.txt > Use this file to discover all available pages before exploring further. # Revoke the previous signing key > Ends the 24-hour overlap of a rotation early, so only the new key signs. Deploy the new secret to your receiver first. ## OpenAPI ````yaml /api-reference/webhooks.json post /v1/subscriptions/{id}/signing-key/revoke-previous openapi: 3.0.3 info: title: Lumeus Webhooks API version: '2026-09-15' description: >- Lumeus Webhooks API on Stellar. Sign up at https://app.lumeus.dev: Free, Starter, Growth and Scale plans are self-serve, Enterprise by agreement. - **Pricing.** Testnet webhook deliveries cost no credits. A Free organization gets one Testnet endpoint with up to 1,000 deliveries a day. On paid plans each delivered Mainnet event costs 1 credit from the monthly balance. Calls to this management API are not charged. Plans, limits and credit weights: `GET https://api.lumeus.dev/v1/plans`. - **Authentication.** Send `Authorization: Bearer whk_…`, a webhook key from the dashboard. Webhook keys belong to one network, so pick the server that matches the key. `lum_` API keys are not accepted here (401). - **Headers.** Every response carries X-Request-Id; authenticated responses carry RateLimit-Limit, RateLimit-Remaining and RateLimit-Reset; 429 and 503 carry Retry-After. - **Errors.** JSON with a machine-readable code (see [errors](/guides/errors)). A path with an empty, `.` or `..` segment answers 400 invalid_request, a trailing slash answers 404 not_found, and a method the path does not accept answers 405 with an Allow header. - **CORS.** Browser calls (CORS) are allowed from https://docs.lumeus.dev (the Try it playground of this reference) and https://app.lumeus.dev only, without cookies; responses expose ETag, Link, Location, Retry-After, X-Request-Id, X-Lumeus-Operation-Id, X-Lumeus-Idempotency and RateLimit-Limit, RateLimit-Remaining and RateLimit-Reset (errors included). Other websites cannot read responses made with a server key: use a publishable key with your own allowed origins ([browser keys](/guides/browser-keys)). license: name: Lumeus API contract servers: - url: https://webhooks-testnet.lumeus.dev description: Testnet (default) - url: https://webhooks.lumeus.dev description: Mainnet security: - Bearer: [] tags: - name: Webhook keys description: >- Create, list and revoke the `whk_` keys that manage webhook endpoints on one network. - name: Subscriptions description: >- Create, list, read, change, pause and delete webhook endpoints (subscriptions) and their event filters. - name: Deliveries description: >- What was delivered to an endpoint: recent deliveries, coverage gaps and signed test events. - name: Signing keys description: >- Rotate an endpoint's whsec_ signing secret with a 24-hour overlap, or end the overlap early. - name: Replay description: >- Redeliver past events or replay a ledger range to an endpoint, priced by a quote first. Free and paid plan endpoints get 403 today. - name: Health description: Liveness and readiness probes for monitoring. No authentication. paths: /v1/subscriptions/{id}/signing-key/revoke-previous: post: tags: - Signing keys summary: Revoke the previous signing key description: >- Ends the 24-hour overlap of a rotation early, so only the new key signs. Deploy the new secret to your receiver first. operationId: revokePreviousSigningKey parameters: - name: id in: path required: true description: >- Endpoint (subscription) ID from `POST /v1/subscriptions` or `GET /v1/subscriptions`. The example ID is a placeholder and answers 404: use your own. schema: type: string format: uuid example: 00000000-0000-4000-8000-000000000000 x-default: 00000000-0000-4000-8000-000000000000 example: 00000000-0000-4000-8000-000000000000 - name: Idempotency-Key in: header required: true description: >- Required. Choose one key per change and resend it unchanged on a retry: the same key with the same request returns the first result instead of applying the change again, and the same key with a different request returns 409. schema: type: string minLength: 1 maxLength: 128 example: retry-0001-2026-10-22 x-default: retry-0001-2026-10-22 example: retry-0001-2026-10-22 - name: If-Match in: header required: true description: >- The ETag from `GET /v1/subscriptions/{id}`, for example `"1"` (the weak form `W/"1"` that some proxies produce is accepted too). A stale version returns 412; a missing header returns 428. schema: type: string pattern: ^(W/)?"[1-9][0-9]*"$ example: '"1"' x-default: '"1"' example: '"1"' responses: '200': description: The previous key is revoked. content: application/json: schema: $ref: '#/components/schemas/SigningKey' example: subscription_id: 00000000-0000-4000-8000-000000000000 version: 3 signing_version: 2 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ RateLimit-Limit: description: >- Requests per minute of the bucket that answered: the plan rate, the dashboard session floor of 120, or a publishable key's per-IP rate. schema: type: integer RateLimit-Remaining: description: Whole requests left in the bucket after this one. schema: type: integer RateLimit-Reset: description: Seconds until the bucket is full again. schema: type: integer '400': $ref: '#/components/responses/HTTP400_7' '401': $ref: '#/components/responses/HTTP401' '403': $ref: '#/components/responses/HTTP403' '404': $ref: '#/components/responses/HTTP404_2' '405': $ref: '#/components/responses/HTTP405_10' '409': $ref: '#/components/responses/HTTP409_2' '410': $ref: '#/components/responses/HTTP410_2' '412': $ref: '#/components/responses/HTTP412' '413': $ref: '#/components/responses/HTTP413' '428': $ref: '#/components/responses/HTTP428' '429': $ref: '#/components/responses/HTTP429' '503': $ref: '#/components/responses/HTTP503_3' x-codeSamples: - lang: bash label: cURL source: >- # Use a subscription id from POST or GET /v1/subscriptions; the placeholder answers 404. curl --fail-with-body -sS -X POST 'https://webhooks-testnet.lumeus.dev/v1/subscriptions/00000000-0000-4000-8000-000000000000/signing-key/revoke-previous' \ -H "Authorization: Bearer $LUMEUS_WEBHOOK_KEY" \ -H 'Idempotency-Key: retry-0001-2026-10-22' \ -H 'If-Match: "1"' - lang: javascript label: JavaScript source: >- // Node 18+ (ES module) // Use a subscription id from POST or GET /v1/subscriptions; the placeholder answers 404. const res = await fetch('https://webhooks-testnet.lumeus.dev/v1/subscriptions/00000000-0000-4000-8000-000000000000/signing-key/revoke-previous', { method: 'POST', headers: { Authorization: `Bearer ${process.env.LUMEUS_WEBHOOK_KEY}`, 'Idempotency-Key': 'retry-0001-2026-10-22', 'If-Match': '"1"', }, }); console.log(res.status, JSON.stringify(await res.json(), null, 2)); - lang: python label: Python source: >- # Use a subscription id from POST or GET /v1/subscriptions; the placeholder answers 404. import json import os import requests res = requests.post( "https://webhooks-testnet.lumeus.dev/v1/subscriptions/00000000-0000-4000-8000-000000000000/signing-key/revoke-previous", headers={"Authorization": f"Bearer {os.environ['LUMEUS_WEBHOOK_KEY']}", "Idempotency-Key": "retry-0001-2026-10-22", "If-Match": "\"1\""}, timeout=30, ) print(res.status_code, json.dumps(res.json(), indent=2)) components: schemas: SigningKey: type: object properties: subscription_id: type: string format: uuid version: type: integer signing_version: type: integer previous_signing_version: type: integer previous_valid_until: type: string format: date-time secret: type: string description: >- New whsec_ value returned once on rotation, absent on retry or revocation. required: - subscription_id - version - signing_version Error: type: object properties: error: type: string description: Human-readable message. It may change; branch on code. code: type: string description: >- Machine-readable error code. Branch on code, not on the error text, which may change. RPC carries the same codes as the string error.data of a JSON-RPC error. invalid_request: 400: invalid input, including a malformed Idempotency-Key or an unknown or repeated query parameter (Webhooks also uses it for an oversized request body, 413). Fix the request; do not retry unchanged. unauthorized: 401: missing, revoked, invalid or wrong-network credential. payment_required: 402 (Mainnet): monthly credit quota exhausted on a hard-capped plan. forbidden: 403: the key or account policy does not allow this action. not_found: 404 (Webhooks also 410): the resource does not exist in this organization and network. topic_search_disabled: 404: contract-event topic search is not enabled on this network. method_not_allowed: 405: the route does not accept this method. conflict: 409: conflicting request identity, idempotency key, funding or recovery state. generation_changed: 409: the index generation or network changed since the snapshot was taken; restart the walk without generation and snapshot_ledger. history_unavailable: 409 (Assets): as_of_ledger is not answered from the balance history; start a snapshot job (POST /snapshots) or retry later. precondition_failed: 412 (Webhooks): the subscription version changed; fetch the current ETag. response_too_large: 413: the result exceeds the response budget; lower limit or narrow the request. precondition_required: 428 (Webhooks): If-Match with the subscription ETag is required. rate_limited: 429: a rate, concurrency or credit-cap limit was reached, or (Activity, Assets and RPC on Testnet) the daily Testnet request cap (message `daily Testnet request cap of 10000 reached; resets at 00:00 UTC`, Retry-After until 00:00 UTC). Wait Retry-After seconds (a refused request consumes nothing). A Retry-After greater than 60 means the daily Testnet cap: wait until 00:00 UTC or switch to Mainnet. RPC carries it as the string error.data. internal_error: 500 or another unexpected 5xx; quote request_id when contacting support. not_implemented: 501: the feature is not enabled on this host. busy: 503: reads are saturated (the queue wait expired or the database refused another query or ran short of memory). Retry the same request after Retry-After (2) seconds. query_timeout: 503: the read ran out of time. Do not retry unchanged right away: narrow the ledger range (since_ledger/until_ledger) or lower limit; Retry-After is 30. index_not_ready: 503: the index or snapshot is not ready yet or is rebuilding; retry after Retry-After seconds. topic_coverage: 503: the effective range is outside the contract-event topic index coverage (the message states it); pass a range inside it or retry after Retry-After (60) seconds. unavailable: 503: another temporary failure (billing, rate limiter, queue); retry after Retry-After seconds. enum: - invalid_request - unauthorized - payment_required - forbidden - not_found - topic_search_disabled - method_not_allowed - conflict - generation_changed - history_unavailable - precondition_failed - response_too_large - precondition_required - rate_limited - internal_error - not_implemented - busy - query_timeout - index_not_ready - topic_coverage - unavailable request_id: type: string description: >- Identifier of this request, the same value as the X-Request-Id header. Quote it when contacting support. required: - error responses: HTTP400_7: description: >- Invalid input (code invalid_request). The message names the problem. Fix the request; do not retry it unchanged. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: invalid_request error: Idempotency-Key is required (1–128 characters) request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP401: description: >- Missing, invalid, revoked or expired key, or a key for the other network (code unauthorized). Keys work only on the network they were created for. content: application/json: schema: $ref: '#/components/schemas/Error' examples: No key: summary: No key value: code: unauthorized error: missing credentials request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 Invalid key: summary: Unknown, revoked or expired whk_ key value: code: unauthorized error: invalid or revoked API key request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP403: description: >- This key or account cannot call this route (code forbidden): for example a read-only key on a workspace route, or a publishable key on a route or from an origin it does not allow. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: forbidden error: confirm your email address to manage webhooks request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP404_2: description: Not found in this organization and network (code not_found). content: application/json: schema: $ref: '#/components/schemas/Error' example: code: not_found error: subscription not found request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP405_10: description: >- This path does not accept the HTTP method you sent (code method_not_allowed). The Allow header lists the methods it accepts. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: method_not_allowed error: >- method GET is not allowed on /v1/subscriptions/00000000-0000-4000-8000-000000000000/signing-key/revoke-previous; allowed: POST request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP409_2: description: The request conflicts with the current state (code conflict). content: application/json: schema: $ref: '#/components/schemas/Error' example: code: conflict error: request identity or subscription generation conflicts request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP410_2: description: >- The resource was deleted, or the retained payload or result expired (code not_found). content: application/json: schema: $ref: '#/components/schemas/Error' example: code: not_found error: subscription is deleted request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP412: description: >- The subscription version changed (code precondition_failed). Fetch the current ETag and retry. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: precondition_failed error: subscription version changed; fetch its current ETag request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP413: description: Request body too large (code invalid_request). content: application/json: schema: $ref: '#/components/schemas/Error' example: code: invalid_request error: request body is too large request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP428: description: If-Match is required (code precondition_required). content: application/json: schema: $ref: '#/components/schemas/Error' example: code: precondition_required error: If-Match with the subscription ETag is required request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ HTTP429: description: >- The Webhooks management rate limit was reached (code rate_limited). Wait Retry-After seconds. The daily Testnet request cap of Activity, Assets and RPC does not apply to the Webhooks API. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: rate_limited error: webhook management rate limit exceeded request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ RateLimit-Limit: description: >- Requests per minute of the bucket that answered: the plan rate, the dashboard session floor of 120, or a publishable key's per-IP rate. schema: type: integer RateLimit-Remaining: description: Whole requests left in the bucket after this one. schema: type: integer RateLimit-Reset: description: Seconds until the bucket is full again. schema: type: integer Retry-After: description: Seconds to wait before retrying. schema: type: integer HTTP503_3: description: >- Temporarily unavailable (code unavailable), for example the management limiter or the database. Wait Retry-After seconds and retry. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: unavailable error: webhook control is temporarily unavailable request_id: req_6f1c2a9b0e4d4c7a8b3f5e21 headers: X-Request-Id: description: >- Identifier of this request: req_ followed by 24 hex characters. Error bodies repeat it as request_id. Quote it when contacting support. schema: type: string pattern: ^req_[0-9a-f]{24}$ Retry-After: description: Seconds to wait before retrying. schema: type: integer securitySchemes: Bearer: type: http scheme: bearer description: >- Send `Authorization: Bearer whk_…`, a webhook key from the dashboard. Webhook keys belong to one network, so pick the server that matches the key. `lum_` API keys are not accepted here (401). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.