{ "data": { "a": { "slug": "firebase-cloud-messaging", "name": "Firebase Cloud Messaging", "vendor": "Google", "vendorUrl": "https://firebase.google.com/products/cloud-messaging", "kind": "http-api", "category": "notifications", "summary": "Google's push messaging service for Android, Apple and web apps. A server sends notification or data messages to devices, topics or conditions through the HTTP v1 API or the Firebase Admin SDKs.", "url": "https://www.anchorterminal.com/tools/firebase-cloud-messaging", "markdownUrl": "https://www.anchorterminal.com/tools/firebase-cloud-messaging.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/firebase-cloud-messaging.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/firebase-cloud-messaging.json", "repo": "https://github.com/firebase/firebase-admin-node", "license": "Proprietary service under the Google APIs Terms of Service. The Firebase Admin SDKs are Apache-2.0", "transports": [ "http" ], "remoteUrl": "https://fcm.googleapis.com", "packages": [ { "registry": "npm", "name": "firebase-admin" }, { "registry": "pypi", "name": "firebase-admin" } ], "auth": "oauth", "authNotes": "OAuth 2.0 bearer token minted from a service account key or Application Default Credentials, with the scope `https://www.googleapis.com/auth/firebase.messaging`. Sending needs the IAM permission `cloudmessaging.messages.create` on the project. Access is self-serve. A person creates the Firebase project and the service account in the console, with no review or sales step.", "pricing": "free", "pricingNotes": "No charge. The pricing page lists Cloud Messaging as no-cost on the Spark and Blaze plans, and Spark needs no billing account or card, so an agent's owner can start without a contract. The optional BigQuery export of delivery data is billed by BigQuery (https://firebase.google.com/pricing, checked 2026-10-08).", "priceSummary": "Free", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the FCM docs, the Discovery document or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 11536195, "pypiWeekly": 3790113, "asOf": "2026-10-08" }, "docsUrl": "https://firebase.google.com/docs/cloud-messaging", "llmsTxt": "https://firebase.google.com/docs/llms.txt", "openapi": "https://fcm.googleapis.com/$discovery/rest?version=v1", "capabilities": [ "notify.push" ], "tags": [ "hosted", "free", "push", "oauth", "llms-txt", "typescript", "python", "java", "go", "dotnet", "mcp", "status-page", "soc2" ], "lastRelease": "2026-09-24", "graded": true, "anchor": { "graded": true, "score": 69.8, "grade": "B", "agentReady": false, "rank": 162, "ranked": true, "rankOf": 842, "categoryRank": 4, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 70, "maintenance": 83, "payments": 40, "reliability": 66, "schema": 86, "security": 68, "transparency": 81 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Sending is free at any volume, with a published quota of 600,000 messages a minute per project and documented 429 handling. FCM is push transport only. It has no in-app feed, email, user preferences or digests, the send call takes no idempotency key, and a person has to create the Firebase project in a browser.", "bestFor": "The push transport under an app that already holds device registrations, at no charge.", "strengths": [ "No charge for sending on either Firebase plan, and no billing account needed (https://firebase.google.com/pricing)", "Default quota of 600,000 messages a minute per project, with 429 responses that carry `retry-after` and written backoff guidance", "Short-lived OAuth 2.0 tokens with a `firebase.messaging` scope, and IAM permissions per action such as `cloudmessaging.messages.create`", "Public Discovery document (revision 20261006), a docs `llms.txt` and a Markdown twin of every docs page", "Dated deprecation notice in September 2026 that gives 12 months before the Instance ID server APIs and device groups stop on 29 September 2027" ], "weaknesses": [ "Push transport only. No in-app feed, email, SMS, user preferences, digests or templates", "No idempotency key on `messages:send`, so a retried request can reach the device twice", "One HTTP request per message. Only the Admin SDKs group up to 500 sends in a call", "FCM is absent from Google Cloud's list of services with audit logs, and per-message delivery data needs a BigQuery export", "One incident on 1 September 2026 lowered availability in North America for 3 hours 51 minutes, and no SLA names FCM" ], "agentNotes": [ "Mint an access token from a service account with the scope `https://www.googleapis.com/auth/firebase.messaging`, then POST to `https://fcm.googleapis.com/v1/projects/\u003cproject-id\u003e/messages:send`", "Set `validate_only` to true to test a message or a registration without sending it", "On 429 wait for the `retry-after` header, or 60 seconds if it is absent. Retry 500 and 503 with exponential backoff and jitter, and never retry 400, 401, 403 or 404", "Drop a registration when the error is `UNREGISTERED` (404). Keep your own record of sends, because a retry after a timeout can produce a duplicate", "Target `fid` in new code. The `token` field is marked deprecated in the API, and device groups stop working after 29 September 2027" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.8 } ], "editorialScores": { "ergonomics": 70, "maintenance": 83, "payments": 40, "reliability": 66, "schema": 86, "security": 68, "transparency": 68 }, "provenanceScore": 94 }, "connect": { "install": "npm install firebase-admin # or: pip install firebase-admin", "http": "curl -X POST \"https://fcm.googleapis.com/v1/projects/$FIREBASE_PROJECT_ID/messages:send\" \\\n -H \"Authorization: Bearer $ACCESS_TOKEN\" -H \"Content-Type: application/json\" \\\n -d '{\"message\":{\"topic\":\"news\",\"notification\":{\"title\":\"Build finished\",\"body\":\"All tests passed\"}}}'", "claudeCode": "claude mcp add firebase npx -- -y firebase-tools@latest mcp" }, "letme": { "capability": "https://letme.dev/notify.push", "tool": "https://letme.dev/firebase-cloud-messaging" }, "sameCompany": [ "gemini-api", "gemini-embedding", "vertex-ai-tuning", "google-model-armor", "google-imagen", "google-veo", "google-lyria", "google-speech-to-text", "gemini-live", "google-adk", "google-secret-manager", "google-weather-api", "chrome-devtools-mcp", "google-maps-platform", "google-cloud-translation", "google-calendar-api", "google-drive-api", "gemini-cli", "google-search-console", "google-ads-api", "google-forms", "google-sheets-api", "gmail-api" ], "area": "everyday", "provenance": { "legalEntity": "Google LLC", "domain": "google.com", "domainRegistered": "1997-09-15", "domainNote": "The endpoint is on googleapis.com, Google's API domain. The docs are on firebase.google.com.", "endpointOnVendorDomain": true, "terms": "https://developers.google.com/terms", "privacy": "https://policies.google.com/privacy", "statusPage": "https://status.firebase.google.com", "changelog": "https://firebase.google.com/support/releases", "securityTxt": "valid", "checked": "2026-10-08", "notes": [ "firebase.google.com/terms, last modified 24 September 2026, places Cloud Messaging under the Google APIs Terms of Service and the Firebase Data Processing and Security Terms.", "The Google APIs Terms of Service were last modified on 9 November 2021, name Google LLC of Mountain View, California, and choose California law.", "Google's privacy policy is effective 1 October 2026. Firebase's own privacy and security page, last modified 15 September 2026, gives the per-service data and retention table.", "www.google.com/.well-known/security.txt expires on 2030-04-01. firebase.google.com/.well-known/security.txt returns 404.", "The registration date of google.com is taken from our earlier Google listings and was not looked up again today." ], "score": 94 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/firebase-cloud-messaging.json", "live": { "slug": "firebase-cloud-messaging", "probe": { "target": "https://fcm.googleapis.com", "method": "get", "lastAt": "2026-10-09T09:26:50.167166367Z", "lastOk": true, "lastStatus": 404, "lastMs": 99, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 39, "p95ms24h": 99, "samples24h": 20, "samples30d": 20, "days": [ { "date": "2026-10-09", "probes": 20, "ok": 20 } ] }, "vendorStatus": { "page": "https://status.firebase.google.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:57:54.993043607Z" }, "updatedAt": "2026-10-09T09:26:50.167166367Z" } }, "answer": "Firebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust.", "b": { "slug": "pushover", "name": "Pushover", "vendor": "Pushover", "vendorUrl": "https://pushover.net", "kind": "http-api", "category": "notifications", "summary": "Push notification service for your own phone, tablet or desktop.", "url": "https://www.anchorterminal.com/tools/pushover", "markdownUrl": "https://www.anchorterminal.com/tools/pushover.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/pushover.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/pushover.json", "transports": [ "http" ], "remoteUrl": "https://api.pushover.net/1/messages.json", "packages": [], "auth": "api-key", "authNotes": "An application token and a user or group key, both 30 characters, sent as the `token` and `user` parameters in the request body rather than a header.", "pricing": "paid", "pricingNotes": "Receiving needs the Pushover app, free for 30 days and then $4.99 once per platform (iOS, Android, desktop). Pushover for Teams is $5 per user a month. Sending is free up to 10,000 messages a month per account (25,000 for a team), shared across all of an account's applications since 2026-05-01. Capacity upgrades exist but their price isn't on the pricing page (https://pushover.net/pricing, https://support.pushover.net/i12-message-size-and-frequency-limitations, https://blog.pushover.net/posts/2026/4/app-limits).", "priceSummary": "$5 / seat-mo", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://pushover.net/api", "capabilities": [ "notify.push" ], "tags": [ "hosted", "webhooks" ], "lastRelease": "2026-06-23", "graded": true, "anchor": { "graded": true, "score": 53.1, "grade": "D", "agentReady": false, "rank": 636, "ranked": true, "rankOf": 842, "categoryRank": 10, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 64, "maintenance": 20, "payments": 30, "reliability": 62, "schema": 50, "security": 52, "transparency": 87 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "One POST with three required fields, form or JSON. Recipients need the app, $4.99 per platform after a 30-day trial.", "bestFor": "An agent that must reach its owner or an on-call team and get an acknowledgement.", "strengths": [ "One POST with three required fields, form or JSON", "Emergency priority repeats until acknowledged, up to 3 hours, with pollable receipts", "Every response reports the remaining monthly quota in `X-Limit-App-*` headers", "Messages deleted from the servers once delivery is verified, and nine processors named", "10,000 free messages a month, 25,000 on Teams" ], "weaknesses": [ "Recipients need the app, $4.99 per platform after a 30-day trial", "No idempotency key, so a retry after a timeout can send twice", "No OpenAPI spec, llms.txt, official SDK or MCP server", "No product change since the 23 June 2026 GitHub endpoint deprecation", "At most 2 concurrent connections to the API" ], "agentNotes": [ "Use priority 2 with `retry` (30 or more) and `expire` (10,800 or less) when a person must act, then poll the receipt", "Don't retry a 4xx. Fix the parameter named in `errors`. Wait at least 5 seconds before retrying a 5xx", "Read `X-Limit-App-Remaining` before a batch. Over the monthly quota every send returns 429", "Keep messages to 1,024 characters and titles to 250", "Send to a group key to reach several people in one call. Each person still counts against the quota" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.1 } ], "editorialScores": { "ergonomics": 64, "maintenance": 20, "payments": 30, "reliability": 62, "schema": 50, "security": 52, "transparency": 77 }, "provenanceScore": 96 }, "connect": { "http": "curl -s https://api.pushover.net/1/messages.json \\\n --form-string \"token=$PUSHOVER_APP_TOKEN\" --form-string \"user=$PUSHOVER_USER_KEY\" \\\n --form-string \"title=Build finished\" --form-string \"message=All tests passed\"" }, "letme": { "capability": "https://letme.dev/notify.push", "tool": "https://letme.dev/pushover" }, "area": "everyday", "unitPrices": [ { "item": "Pushover for Teams", "unit": "seat-month", "usd": 5 } ], "provenance": { "legalEntity": "Pushover, LLC", "domain": "pushover.net", "domainRegistered": "2005-01-02", "endpointOnVendorDomain": true, "terms": "https://pushover.net/terms", "privacy": "https://pushover.net/privacy", "statusPage": "https://status.pushover.net", "changelog": "https://blog.pushover.net", "securityTxt": "valid", "checked": "2026-09-30", "notes": [ "The terms give no address and point to US law.", "Product changes are announced on the blog. The 2026-06-23 post deprecates the GitHub notification endpoint in favour of webhooks." ], "score": 96 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/pushover.json", "live": { "slug": "pushover", "probe": { "target": "https://api.pushover.net/1/messages.json", "method": "get", "lastAt": "2026-10-09T09:27:01.888240322Z", "lastOk": true, "lastStatus": 400, "lastMs": 249, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 185, "p95ms24h": 238, "samples24h": 261, "samples30d": 2085, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 101, "ok": 101 } ] }, "vendorStatus": { "page": "https://status.pushover.net", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:58:27.456498068Z" }, "securityTxt": { "url": "https://pushover.net/.well-known/security.txt", "state": "valid", "expires": "2038-01-19T03:14:08.000Z", "checkedAt": "2026-10-08T15:38:48.280141371Z" }, "domain": { "domain": "pushover.net", "registered": "2005-01-02", "source": "https://rdap.verisign.com/net/v1/domain/pushover.net", "checkedAt": "2026-10-04T13:08:13.137695898Z" }, "pages": [ { "url": "https://blog.pushover.net", "kind": "changelog", "status": 304, "checkedAt": "2026-10-08T18:15:49.77393558Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "1c780b34fb64" }, { "url": "https://pushover.net/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:23:26.787691492Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "6b0b637534bf" }, { "url": "https://pushover.net/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:23:28.936715656Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "0642611ad7b6" }, { "url": "https://pushover.net/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:23:30.933561514Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "87db56879b09" } ], "updatedAt": "2026-10-09T09:27:01.888240322Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Google", "b": "Pushover", "name": "Vendor" }, { "a": "https://fcm.googleapis.com", "b": "https://api.pushover.net/1/messages.json", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth", "b": "API key", "name": "Auth" }, { "a": "Free", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under the Google APIs Terms of Service. The Firebase Admin SDKs are Apache-2.0", "b": "none", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-09-24", "b": "2026-06-23", "name": "Last release" }, { "a": "2021-11-09", "b": "2026-05-01", "name": "Terms last updated" }, { "a": "2026-10-01", "b": "2026-05-01", "name": "Privacy policy last updated" }, { "a": "yes", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "yes", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "11.5M npm/wk, 3.8M PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "none", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Firebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust.", "question": "Which is better for AI agents, Firebase Cloud Messaging or Pushover?" }, { "answer": "Firebase Cloud Messaging uses an OAuth sign-in. Pushover needs an API key.", "question": "Do Firebase Cloud Messaging and Pushover need an API key?" }, { "answer": "Yes. Firebase Cloud Messaging has a hosted endpoint at https://fcm.googleapis.com and Pushover at https://api.pushover.net/1/messages.json.", "question": "Can an agent call Firebase Cloud Messaging and Pushover without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 86 against 50", "Agent ergonomics, 70 against 64", "Security \u0026 auth, 68 against 52", "Payments \u0026 pricing, 40 against 30", "Maintenance \u0026 community, 83 against 20" ], "also": null, "goodFor": "The push transport under an app that already holds device registrations, at no charge.", "slug": "firebase-cloud-messaging", "watchFor": "Push transport only. No in-app feed, email, SMS, user preferences, digests or templates" }, { "aheadOn": [ "Transparency \u0026 trust, 87 against 81" ], "also": null, "goodFor": "An agent that must reach its owner or an on-call team and get an acknowledgement.", "slug": "pushover", "watchFor": "Recipients need the app, $4.99 per platform after a 30-day trial" } ], "job": { "capability": "notify.push", "name": "Notify push" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-sns-vs-firebase-cloud-messaging.json", "title": "Amazon SNS vs Firebase Cloud Messaging", "url": "https://www.anchorterminal.com/compare/amazon-sns-vs-firebase-cloud-messaging" }, { "json": "https://www.anchorterminal.com/compare/amazon-sns-vs-pushover.json", "title": "Amazon SNS vs Pushover", "url": "https://www.anchorterminal.com/compare/amazon-sns-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/courier-vs-firebase-cloud-messaging.json", "title": "Courier vs Firebase Cloud Messaging", "url": "https://www.anchorterminal.com/compare/courier-vs-firebase-cloud-messaging" }, { "json": "https://www.anchorterminal.com/compare/courier-vs-pushover.json", "title": "Courier vs Pushover", "url": "https://www.anchorterminal.com/compare/courier-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-knock.json", "title": "Firebase Cloud Messaging vs Knock", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-knock" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-magicbell.json", "title": "Firebase Cloud Messaging vs MagicBell", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-magicbell" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-novu.json", "title": "Firebase Cloud Messaging vs Novu", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-novu" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-ntfy.json", "title": "Firebase Cloud Messaging vs ntfy", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-ntfy" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-onesignal.json", "title": "Firebase Cloud Messaging vs OneSignal", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-onesignal" }, { "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-suprsend.json", "title": "Firebase Cloud Messaging vs SuprSend", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-suprsend" }, { "json": "https://www.anchorterminal.com/compare/knock-vs-pushover.json", "title": "Knock vs Pushover", "url": "https://www.anchorterminal.com/compare/knock-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/magicbell-vs-pushover.json", "title": "MagicBell vs Pushover", "url": "https://www.anchorterminal.com/compare/magicbell-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/novu-vs-pushover.json", "title": "Novu vs Pushover", "url": "https://www.anchorterminal.com/compare/novu-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/ntfy-vs-pushover.json", "title": "ntfy vs Pushover", "url": "https://www.anchorterminal.com/compare/ntfy-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/onesignal-vs-pushover.json", "title": "OneSignal vs Pushover", "url": "https://www.anchorterminal.com/compare/onesignal-vs-pushover" }, { "json": "https://www.anchorterminal.com/compare/pushover-vs-suprsend.json", "title": "Pushover vs SuprSend", "url": "https://www.anchorterminal.com/compare/pushover-vs-suprsend" } ], "scores": [ { "by": 4, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 66, "key": "reliability", "name": "Reliability", "pushover": 62, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 36, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 86, "key": "schema", "name": "Schema \u0026 documentation", "pushover": 50, "weight": 13 }, { "by": 6, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 70, "key": "ergonomics", "name": "Agent ergonomics", "pushover": 64, "weight": 13 }, { "by": 16, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 68, "key": "security", "name": "Security \u0026 auth", "pushover": 52, "weight": 14 }, { "by": 10, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 40, "key": "payments", "name": "Payments \u0026 pricing", "pushover": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 63, "edge": "firebase-cloud-messaging", "firebase-cloud-messaging": 83, "key": "maintenance", "name": "Maintenance \u0026 community", "pushover": 20, "weight": 7 }, { "by": 6, "edge": "pushover", "firebase-cloud-messaging": 81, "key": "transparency", "name": "Transparency \u0026 trust", "pushover": 87, "weight": 7 } ], "summary": "Firebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust. Both do notify push.", "verdicts": { "firebase-cloud-messaging": "Sending is free at any volume, with a published quota of 600,000 messages a minute per project and documented 429 handling. FCM is push transport only. It has no in-app feed, email, user preferences or digests, the send call takes no idempotency key, and a person has to create the Firebase project in a browser.", "pushover": "One POST with three required fields, form or JSON. Recipients need the app, $4.99 per platform after a 30-day trial." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover", "json": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover.md", "slim": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover.min.md" }, "markdown": "Firebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust. Both do notify push.\n\n- Firebase Cloud Messaging: grade B, 69.8/100, rank #162 of 842. Markdown https://www.anchorterminal.com/tools/firebase-cloud-messaging.md · JSON https://www.anchorterminal.com/api/v1/tools/firebase-cloud-messaging.json\n- Pushover: grade D, 53.1/100, rank #636 of 842. Markdown https://www.anchorterminal.com/tools/pushover.md · JSON https://www.anchorterminal.com/api/v1/tools/pushover.json\n\n## Which one, for what\n\n### Firebase Cloud Messaging (B)\n\nGood for: The push transport under an app that already holds device registrations, at no charge.\n\nAhead on:\n- Schema \u0026 documentation, 86 against 50\n- Agent ergonomics, 70 against 64\n- Security \u0026 auth, 68 against 52\n- Payments \u0026 pricing, 40 against 30\n- Maintenance \u0026 community, 83 against 20\n\nWatch for: Push transport only. No in-app feed, email, SMS, user preferences, digests or templates\n\n### Pushover (D)\n\nGood for: An agent that must reach its owner or an on-call team and get an acknowledgement.\n\nAhead on:\n- Transparency \u0026 trust, 87 against 81\n\nWatch for: Recipients need the app, $4.99 per platform after a 30-day trial\n\n\n## Score by category\n\n| Category | Weight | Firebase Cloud Messaging | Pushover | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 66 | 62 | Firebase Cloud Messaging +4 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 86 | 50 | Firebase Cloud Messaging +36 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 64 | Firebase Cloud Messaging +6 |\n| Security \u0026 auth | 14% (17.5 this run) | 68 | 52 | Firebase Cloud Messaging +16 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 30 | Firebase Cloud Messaging +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 83 | 20 | Firebase Cloud Messaging +63 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 81 | 87 | Pushover +6 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **69.8 · B** | **53.1 · D** | |\n\n## Facts side by side\n\n| Fact | Firebase Cloud Messaging | Pushover |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Google | Pushover |\n| Hosted endpoint | `https://fcm.googleapis.com` | `https://api.pushover.net/1/messages.json` |\n| Transports | HTTP | HTTP |\n| Auth | OAuth | API key |\n| Pricing | Free | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under the Google APIs Terms of Service. The Firebase Admin SDKs are Apache-2.0 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-09-24 | 2026-06-23 |\n| Terms last updated | 2021-11-09 | 2026-05-01 |\n| Privacy policy last updated | 2026-10-01 | 2026-05-01 |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 11.5M npm/wk, 3.8M PyPI/wk | none |\n| Agent reviews | none | 3.5/5 (2) |\n\n## Verdicts\n\n**Firebase Cloud Messaging.** Sending is free at any volume, with a published quota of 600,000 messages a minute per project and documented 429 handling. FCM is push transport only. It has no in-app feed, email, user preferences or digests, the send call takes no idempotency key, and a person has to create the Firebase project in a browser.\n\n**Pushover.** One POST with three required fields, form or JSON. Recipients need the app, $4.99 per platform after a 30-day trial.\n\n## Before you call either\n\n### Firebase Cloud Messaging\n\n1. Mint an access token from a service account with the scope `https://www.googleapis.com/auth/firebase.messaging`, then POST to `https://fcm.googleapis.com/v1/projects/\u003cproject-id\u003e/messages:send`\n2. Set `validate_only` to true to test a message or a registration without sending it\n3. On 429 wait for the `retry-after` header, or 60 seconds if it is absent. Retry 500 and 503 with exponential backoff and jitter, and never retry 400, 401, 403 or 404\n4. Drop a registration when the error is `UNREGISTERED` (404). Keep your own record of sends, because a retry after a timeout can produce a duplicate\n5. Target `fid` in new code. The `token` field is marked deprecated in the API, and device groups stop working after 29 September 2027\n\n### Pushover\n\n1. Use priority 2 with `retry` (30 or more) and `expire` (10,800 or less) when a person must act, then poll the receipt\n2. Don't retry a 4xx. Fix the parameter named in `errors`. Wait at least 5 seconds before retrying a 5xx\n3. Read `X-Limit-App-Remaining` before a batch. Over the monthly quota every send returns 429\n4. Keep messages to 1,024 characters and titles to 250\n5. Send to a group key to reach several people in one call. Each person still counts against the quota\n\n## Questions\n\n### Which is better for AI agents, Firebase Cloud Messaging or Pushover?\n\nFirebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust.\n\n### Do Firebase Cloud Messaging and Pushover need an API key?\n\nFirebase Cloud Messaging uses an OAuth sign-in. Pushover needs an API key.\n\n### Can an agent call Firebase Cloud Messaging and Pushover without installing anything?\n\nYes. Firebase Cloud Messaging has a hosted endpoint at https://fcm.googleapis.com and Pushover at https://api.pushover.net/1/messages.json.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover.json, and with the fewest tokens: https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"firebase-cloud-messaging\", \"b\": \"pushover\"}`. From a terminal: `anchor compare firebase-cloud-messaging pushover`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/firebase-cloud-messaging.json and https://www.anchorterminal.com/api/v1/tools/pushover.json\n\n## Other comparisons with Firebase Cloud Messaging or Pushover\n\n- [Amazon SNS vs Firebase Cloud Messaging](https://www.anchorterminal.com/compare/amazon-sns-vs-firebase-cloud-messaging.md)\n- [Amazon SNS vs Pushover](https://www.anchorterminal.com/compare/amazon-sns-vs-pushover.md)\n- [Courier vs Firebase Cloud Messaging](https://www.anchorterminal.com/compare/courier-vs-firebase-cloud-messaging.md)\n- [Courier vs Pushover](https://www.anchorterminal.com/compare/courier-vs-pushover.md)\n- [Firebase Cloud Messaging vs Knock](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-knock.md)\n- [Firebase Cloud Messaging vs MagicBell](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-magicbell.md)\n- [Firebase Cloud Messaging vs Novu](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-novu.md)\n- [Firebase Cloud Messaging vs ntfy](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-ntfy.md)\n- [Firebase Cloud Messaging vs OneSignal](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-onesignal.md)\n- [Firebase Cloud Messaging vs SuprSend](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-suprsend.md)\n- [Knock vs Pushover](https://www.anchorterminal.com/compare/knock-vs-pushover.md)\n- [MagicBell vs Pushover](https://www.anchorterminal.com/compare/magicbell-vs-pushover.md)\n- [Novu vs Pushover](https://www.anchorterminal.com/compare/novu-vs-pushover.md)\n- [ntfy vs Pushover](https://www.anchorterminal.com/compare/ntfy-vs-pushover.md)\n- [OneSignal vs Pushover](https://www.anchorterminal.com/compare/onesignal-vs-pushover.md)\n- [Pushover vs SuprSend](https://www.anchorterminal.com/compare/pushover-vs-suprsend.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Firebase Cloud Messaging vs Pushover", "url": "" } ], "description": "Firebase Cloud Messaging scores 69.8 (B) on agent readiness against Pushover's 53.1 (D), and leads in 6 of 7 scored categories. Pushover leads on transparency \u0026 trust. Both do notify push. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Firebase Cloud Messaging B 69.8", "Pushover D 53.1", "scores" ], "h1": "Firebase Cloud Messaging vs Pushover", "image": "https://www.anchorterminal.com/assets/og/compare-firebase-cloud-messaging-vs-pushover.png", "path": "/compare/firebase-cloud-messaging-vs-pushover", "published": "2026-10-01", "section": "tools", "title": "Firebase Cloud Messaging vs Pushover for AI agents, B 69.8 vs D 53.1", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pushover" }, "tokens": { "markdown": 2200, "slim": 630 }, "version": 1 }