{ "data": { "a": { "slug": "capsule-crm", "name": "Capsule CRM", "vendor": "Zestia Limited", "vendorUrl": "https://capsulecrm.com", "kind": "http-api", "category": "crm", "summary": "Capsule is a hosted CRM for small businesses from Zestia Limited in Manchester. Agents reach contacts, opportunities, projects, tasks and notes through REST API v2, or through a hosted MCP server on the Growth plan and above.", "url": "https://www.anchorterminal.com/tools/capsule-crm", "markdownUrl": "https://www.anchorterminal.com/tools/capsule-crm.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/capsule-crm.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/capsule-crm.json", "license": "Proprietary service under Capsule's Customer Terms", "transports": [ "http" ], "remoteUrl": "https://api.capsulecrm.com/api/v2", "packages": [], "auth": "mixed", "authNotes": "Every call takes a bearer token in the `Authorization` header. A user can create a personal token under My Preferences, API Authentication Tokens, with no review. Apps for other people use OAuth 2 (authorisation code grant) with the scopes `read`, `read write` or `read write user_preference`, refresh tokens and a revocation endpoint. Registering an OAuth app is self-serve in the developer hub and needs a GitHub sign-in. The MCP server accepts only OAuth with a pre-registered client ID and secret, and acts with the connecting user's own access.", "pricing": "freemium", "pricingNotes": "Free plan for up to two users and 250 contacts, and a 14-day trial of paid plans with no card, so an agent's owner can start without a contract. Paid plans are per user per month (Starter, Growth, Advanced, Ultimate). The pricing page draws its numbers by script and we could not read them. Capsule's comparison pages give Starter as $18 a month and the range as $0 to $72 (https://capsulecrm.com/crm-comparisons/copper/). The API has no separate charge in the reviewed pages. The MCP server needs Growth or above. Whether the Free plan includes API access was not found (checked 2026-10-08).", "priceSummary": "$18 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the developer docs, the pricing page or the terms (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://developer.capsulecrm.com", "capabilities": [ "crm.records", "crm.pipeline", "crm.activities", "crm.search", "crm.webhooks" ], "tags": [ "hosted", "closed-source", "mcp", "oauth", "webhooks", "free-tier", "no-card", "status-page" ], "lastRelease": "2026-09-25", "graded": true, "anchor": { "graded": true, "score": 55.7, "grade": "C", "agentReady": false, "rank": 504, "ranked": true, "rankOf": 722, "categoryRank": 11, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 59, "maintenance": 38, "payments": 30, "reliability": 83, "schema": 48, "security": 46, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "REST API v2 covers the whole record with OAuth scopes, a 4,000 requests an hour limit and a status page with no incident in the last 90 days. There is no OpenAPI file, llms.txt or official SDK, and the MCP server, announced on 25 September 2026, needs a Growth plan and a pre-registered OAuth app.", "bestFor": "Small teams already on Capsule who want an agent to read and write contacts, opportunities, projects and tasks over REST with a read-only scope available.", "strengths": [ "132 documented operations across 25 resources, with request and response examples and typed parameter tables", "OAuth 2 with `read` and `write` scopes, refresh tokens, a revocation endpoint and S256 PKCE in the server metadata", "4,000 requests an hour per user, with `X-RateLimit-*` headers on every successful response", "No incident on status.capsulecrm.com between 10 July and 8 October 2026", "Free plan for two users and 250 contacts, and a 14-day trial of paid plans with no card" ], "weaknesses": [ "No OpenAPI file, llms.txt or official SDK was found", "The MCP server needs the Growth plan or above, and clients that only support dynamic client registration can't connect", "Capsule's own pages disagree on what the MCP tools can write, and the tool reference lists only custom-field updates", "No idempotency keys, and no Retry-After header on 429", "The pricing page draws its numbers by script. Only the Starter price and the top of the range were readable" ], "agentNotes": [ "Send `Authorization: Bearer \u003ctoken\u003e` to `https://api.capsulecrm.com/api/v2`. Projects use the old name in paths, `/kases`", "Follow the `Link` header for the next page. `perPage` goes up to 100 and the default is 50", "On 429, wait until the epoch time in `X-RateLimit-Reset`. The docs suggest one second between calls", "Ask for the `read` scope when the task only reads. A write with a read-only token answers 403 with `insufficient_scope`", "For MCP, register an OAuth app in the developer hub first (GitHub sign-in needed) and give the client its ID and secret. Personal API tokens are refused" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 55.7 } ], "editorialScores": { "ergonomics": 59, "maintenance": 38, "payments": 30, "reliability": 83, "schema": 48, "security": 46, "transparency": 64 }, "provenanceScore": 86 }, "connect": { "http": "curl -H \"Authorization: Bearer $CAPSULE_TOKEN\" -H \"Accept: application/json\" https://api.capsulecrm.com/api/v2/parties" }, "letme": { "capability": "https://letme.dev/crm.records", "tool": "https://letme.dev/capsule-crm" }, "area": "business", "unitPrices": [ { "item": "Starter", "unit": "seat-month", "usd": 18, "note": "per Capsule's comparison page, billing period not stated there. Growth and Advanced prices were not readable" }, { "item": "Ultimate", "unit": "seat-month", "usd": 72, "note": "top of the $0 to $72 range on Capsule's comparison page ($432 for six users)" } ], "provenance": { "legalEntity": "Zestia Limited", "domain": "capsulecrm.com", "domainRegistered": "2010-01-11", "endpointOnVendorDomain": true, "terms": "https://capsulecrm.com/terms/", "privacy": "https://capsulecrm.com/privacy/", "statusPage": "https://status.capsulecrm.com", "changelog": "https://developer.capsulecrm.com/v2/overview/announcements-and-changes", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The Customer Terms name Zestia Limited, registered in England with number 06418281, 20 Dale St, Manchester, M1 1EZ, and are governed by the laws of England and Wales. They cover the service and the API. No date was found on the page.", "The privacy policy was last updated on 21 August 2025. It names Zestia Limited as controller and says Capsulecrm Inc. is certified under the EU-U.S. Data Privacy Framework.", "AI Terms at https://capsulecrm.com/ai-terms/ form part of the agreement and cover the MCP server. A Data Processing Agreement is at https://capsulecrm.com/dpa/.", "The API answers at api.capsulecrm.com and the MCP server at mcp-server.capsulecrm.com.", "capsulecrm.com/.well-known/security.txt and /security.txt return 404. The security page gives support+sensitive@capsulecrm.com for reports.", "RDAP for capsulecrm.com gives a registration date of 2010-01-11." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/capsule-crm.json", "live": { "slug": "capsule-crm", "probe": { "target": "https://api.capsulecrm.com/api/v2", "method": "get", "lastAt": "2026-10-08T22:39:44.150871564Z", "lastOk": true, "lastStatus": 200, "lastMs": 425, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 430, "p95ms24h": 472, "samples24h": 36, "samples30d": 36, "days": [ { "date": "2026-10-08", "probes": 36, "ok": 36 } ] }, "vendorStatus": { "page": "https://status.capsulecrm.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T22:39:10.161068737Z" }, "updatedAt": "2026-10-08T22:39:44.150871564Z" } }, "answer": "Capsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories.", "b": { "slug": "copper", "name": "Copper API", "vendor": "Copper", "vendorUrl": "https://www.copper.com", "kind": "http-api", "category": "crm", "summary": "REST API for Copper, the CRM built around Google Workspace.", "url": "https://www.anchorterminal.com/tools/copper", "markdownUrl": "https://www.anchorterminal.com/tools/copper.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/copper.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/copper.json", "transports": [ "http" ], "remoteUrl": "https://api.copper.com/developer_api/v1", "packages": [], "auth": "mixed", "authNotes": "Personal API key sent in the `X-PW-AccessToken` header together with `X-PW-Application: developer_api` and `X-PW-UserEmail` (the email of the key's owner). Keys are generated under System settings, API Keys, and admins can see every user's keys. OAuth 2.0 (added 2023-08-11) is the route for partner integrations.", "pricing": "paid", "pricingNotes": "No free plan, only a trial, and the pricing page says no card is needed. Basic $29 a seat a month billed monthly or $23 billed yearly (2,500 contacts), Professional $69 or $59 (15,000 contacts), Business $134 or $99 (unlimited contacts). API access is documented for Professional, Business and the trial, not Basic (https://www.copper.com/pricing).", "priceSummary": "$59 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No payments. API access follows the Copper subscription.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developer.copper.com", "capabilities": [ "crm.records", "crm.pipeline", "crm.activities", "crm.search", "crm.webhooks" ], "tags": [ "hosted", "closed-source", "webhooks", "no-card" ], "lastRelease": "2026-07-02", "graded": true, "anchor": { "graded": true, "score": 46.7, "grade": "D", "agentReady": false, "rank": 642, "ranked": true, "rankOf": 722, "categoryRank": 13, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 40, "maintenance": 21, "payments": 30, "reliability": 79, "schema": 48, "security": 27, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Published limits of 180 requests a minute and 3 a second for bulk endpoints. No official MCP server, OpenAPI spec or llms.txt.", "bestFor": "Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.", "strengths": [ "Published limits of 180 requests a minute and 3 a second for bulk endpoints", "No status incidents between 3 July and 1 October 2026", "Privacy policy states US-only hosting, a 180-day purge after expiry and no AI training on Workspace API data", "Webhook subscriptions per entity and event, with custom headers", "Trial with no card, per the pricing page" ], "weaknesses": [ "No official MCP server, OpenAPI spec or llms.txt", "API keys carry the owner's full rights, and admins can see every user's key", "No documented error format, Retry-After or idempotency", "Basic plan has no API access, so the first plan with it costs $59 a seat a month yearly", "Three changelog entries in 2026, and bulk endpoints still beta since 2023" ], "agentNotes": [ "Send `X-PW-AccessToken`, `X-PW-Application: developer_api` and `X-PW-UserEmail` on every call, or it fails", "Set `page_size` to 200 and stop when a page comes back short, since `X-PW-TOTAL` is only an upper bound", "Back off on 429 on your own clock, since no Retry-After is documented", "Narrow searches that would pass 100,000 records, which is where results stop", "Read connect fields before you update a record, because an update that omits them can delete connections" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 1.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 46.7 } ], "editorialScores": { "ergonomics": 40, "maintenance": 21, "payments": 30, "reliability": 79, "schema": 48, "security": 27, "transparency": 58 }, "provenanceScore": 85 }, "connect": { "http": "curl https://api.copper.com/developer_api/v1/account \\\n -H \"X-PW-AccessToken: $COPPER_API_KEY\" -H \"X-PW-Application: developer_api\" \\\n -H \"X-PW-UserEmail: $COPPER_USER_EMAIL\" -H \"Content-Type: application/json\"" }, "letme": { "capability": "https://letme.dev/crm.records", "tool": "https://letme.dev/copper" }, "area": "business", "unitPrices": [ { "item": "Professional (first plan with API access)", "unit": "seat-month", "usd": 59, "note": "billed yearly; $69 billed monthly" }, { "item": "Business", "unit": "seat-month", "usd": 99, "note": "billed yearly; $134 billed monthly" }, { "item": "Basic (no API access)", "unit": "seat-month", "usd": 23, "note": "billed yearly; $29 billed monthly" } ], "provenance": { "legalEntity": "Copper CRM, Inc.", "domain": "copper.com", "domainRegistered": "1994-02-07", "domainNote": "copper.com was registered in 1994, long before the company renamed itself from ProsperWorks.", "endpointOnVendorDomain": true, "terms": "https://www.copper.com/terms", "privacy": "https://www.copper.com/privacy", "statusPage": "https://status.copper.com", "changelog": "https://developer.copper.com/introduction/changelog.html", "securityTxt": "none", "checked": "2026-09-30", "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/copper.json", "live": { "slug": "copper", "probe": { "target": "https://api.copper.com/developer_api/v1", "method": "get", "lastAt": "2026-10-08T22:39:45.11574877Z", "lastOk": true, "lastStatus": 404, "lastMs": 271, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 275, "p95ms24h": 328, "samples24h": 269, "samples30d": 2172, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "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": 254, "ok": 254 } ] }, "vendorStatus": { "page": "https://status.copper.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T22:39:15.023996716Z" }, "securityTxt": { "url": "https://copper.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:49.789543081Z" }, "domain": { "domain": "copper.com", "registered": "1994-02-07", "source": "https://rdap.verisign.com/com/v1/domain/copper.com", "checkedAt": "2026-10-04T13:03:56.935081383Z" }, "pages": [ { "url": "https://developer.copper.com/introduction/changelog.html", "kind": "changelog", "status": 304, "checkedAt": "2026-10-08T18:17:10.808095776Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3189aee56061" }, { "url": "https://www.copper.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:27:11.777710377Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "348ab28c1aa0" }, { "url": "https://www.copper.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:27:13.865424133Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "435089e1aba9" }, { "url": "https://www.copper.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:27:15.997994829Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "27e69e8dc412" } ], "updatedAt": "2026-10-08T22:39:45.11574877Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Zestia Limited", "b": "Copper", "name": "Vendor" }, { "a": "https://api.capsulecrm.com/api/v2", "b": "https://api.copper.com/developer_api/v1", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under Capsule's Customer Terms", "b": "none", "name": "Licence" }, { "a": "yes", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "no", "name": "llms.txt" }, { "a": "2026-09-25", "b": "2026-07-02", "name": "Last release" }, { "a": "no date given", "b": "2025-07-01", "name": "Terms last updated" }, { "a": "2025-08-21", "b": "2026-05-11", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "1.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Capsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories.", "question": "Which is better for AI agents, Capsule CRM or Copper API?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do Capsule CRM and Copper API need an API key?" }, { "answer": "Yes. Capsule CRM has a hosted endpoint at https://api.capsulecrm.com/api/v2 and Copper API at https://api.copper.com/developer_api/v1.", "question": "Can an agent call Capsule CRM and Copper API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Agent ergonomics, 59 against 40", "Security \u0026 auth, 46 against 27", "Maintenance \u0026 community, 38 against 21" ], "also": null, "goodFor": "Small teams already on Capsule who want an agent to read and write contacts, opportunities, projects and tasks over REST with a read-only scope available.", "slug": "capsule-crm", "watchFor": "No OpenAPI file, llms.txt or official SDK was found" }, { "aheadOn": null, "also": null, "goodFor": "Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.", "slug": "copper", "watchFor": "No official MCP server, OpenAPI spec or llms.txt" } ], "job": { "capability": "crm.records", "name": "Crm records" }, "others": [ { "json": "https://www.anchorterminal.com/compare/affinity-vs-capsule-crm.json", "title": "Affinity vs Capsule CRM", "url": "https://www.anchorterminal.com/compare/affinity-vs-capsule-crm" }, { "json": "https://www.anchorterminal.com/compare/affinity-vs-copper.json", "title": "Affinity vs Copper API", "url": "https://www.anchorterminal.com/compare/affinity-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/attio-vs-capsule-crm.json", "title": "Attio API + MCP vs Capsule CRM", "url": "https://www.anchorterminal.com/compare/attio-vs-capsule-crm" }, { "json": "https://www.anchorterminal.com/compare/attio-vs-copper.json", "title": "Attio API + MCP vs Copper API", "url": "https://www.anchorterminal.com/compare/attio-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-close.json", "title": "Capsule CRM vs Close API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-close" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-dynamics-365-sales.json", "title": "Capsule CRM vs Microsoft Dynamics 365 Sales", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-dynamics-365-sales" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-folk.json", "title": "Capsule CRM vs folk API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-folk" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-freshsales.json", "title": "Capsule CRM vs Freshsales API", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-freshsales" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-hubspot-mcp.json", "title": "Capsule CRM vs HubSpot API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-hubspot-mcp" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.json", "title": "Capsule CRM vs Nutshell", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-pipedrive.json", "title": "Capsule CRM vs Pipedrive API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-pipedrive" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-salesforce.json", "title": "Capsule CRM vs Salesforce API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-salesforce" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-streak.json", "title": "Capsule CRM vs Streak API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-streak" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-twenty.json", "title": "Capsule CRM vs Twenty API + MCP", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-twenty" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-zoho-crm.json", "title": "Capsule CRM vs Zoho CRM", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-zoho-crm" }, { "json": "https://www.anchorterminal.com/compare/close-vs-copper.json", "title": "Close API + MCP vs Copper API", "url": "https://www.anchorterminal.com/compare/close-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales.json", "title": "Copper API vs Microsoft Dynamics 365 Sales", "url": "https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-folk.json", "title": "Copper API vs folk API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-folk" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-freshsales.json", "title": "Copper API vs Freshsales API", "url": "https://www.anchorterminal.com/compare/copper-vs-freshsales" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp.json", "title": "Copper API vs HubSpot API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-nutshell.json", "title": "Copper API vs Nutshell", "url": "https://www.anchorterminal.com/compare/copper-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-pipedrive.json", "title": "Copper API vs Pipedrive API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-pipedrive" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-salesforce.json", "title": "Copper API vs Salesforce API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-salesforce" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-streak.json", "title": "Copper API vs Streak API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-streak" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-twenty.json", "title": "Copper API vs Twenty API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-twenty" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-zoho-crm.json", "title": "Copper API vs Zoho CRM", "url": "https://www.anchorterminal.com/compare/copper-vs-zoho-crm" } ], "scores": [ { "by": 4, "capsule-crm": 83, "copper": 79, "edge": "capsule-crm", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 0, "capsule-crm": 48, "copper": 48, "edge": "", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 19, "capsule-crm": 59, "copper": 40, "edge": "capsule-crm", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 19, "capsule-crm": 46, "copper": 27, "edge": "capsule-crm", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 0, "capsule-crm": 30, "copper": 30, "edge": "", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 17, "capsule-crm": 38, "copper": 21, "edge": "capsule-crm", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 3, "capsule-crm": 75, "copper": 72, "edge": "capsule-crm", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Capsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories. Both do crm records.", "verdicts": { "capsule-crm": "REST API v2 covers the whole record with OAuth scopes, a 4,000 requests an hour limit and a status page with no incident in the last 90 days. There is no OpenAPI file, llms.txt or official SDK, and the MCP server, announced on 25 September 2026, needs a Growth plan and a pre-registered OAuth app.", "copper": "Published limits of 180 requests a minute and 3 a second for bulk endpoints. No official MCP server, OpenAPI spec or llms.txt." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper", "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper.md", "slim": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper.min.md" }, "markdown": "Capsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories. Both do crm records.\n\n- Capsule CRM: grade C, 55.7/100, rank #504 of 722. Markdown https://www.anchorterminal.com/tools/capsule-crm.md · JSON https://www.anchorterminal.com/api/v1/tools/capsule-crm.json\n- Copper API: grade D, 46.7/100, rank #642 of 722. Markdown https://www.anchorterminal.com/tools/copper.md · JSON https://www.anchorterminal.com/api/v1/tools/copper.json\n\n## Which one, for what\n\n### Capsule CRM (C)\n\nGood for: Small teams already on Capsule who want an agent to read and write contacts, opportunities, projects and tasks over REST with a read-only scope available.\n\nAhead on:\n- Agent ergonomics, 59 against 40\n- Security \u0026 auth, 46 against 27\n- Maintenance \u0026 community, 38 against 21\n\nWatch for: No OpenAPI file, llms.txt or official SDK was found\n\n### Copper API (D)\n\nGood for: Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.\n\nWatch for: No official MCP server, OpenAPI spec or llms.txt\n\n\n## Score by category\n\n| Category | Weight | Capsule CRM | Copper API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 83 | 79 | Capsule CRM +4 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 48 | even |\n| Agent ergonomics | 13% (16.2 this run) | 59 | 40 | Capsule CRM +19 |\n| Security \u0026 auth | 14% (17.5 this run) | 46 | 27 | Capsule CRM +19 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 30 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 38 | 21 | Capsule CRM +17 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 72 | Capsule CRM +3 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **55.7 · C** | **46.7 · D** | |\n\n## Facts side by side\n\n| Fact | Capsule CRM | Copper API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Zestia Limited | Copper |\n| Hosted endpoint | `https://api.capsulecrm.com/api/v2` | `https://api.copper.com/developer_api/v1` |\n| Transports | HTTP | HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under Capsule's Customer Terms | none |\n| Read-only variant documented | yes | no |\n| llms.txt | no | no |\n| Last release | 2026-09-25 | 2026-07-02 |\n| Terms last updated | no date given | 2025-07-01 |\n| Privacy policy last updated | 2025-08-21 | 2026-05-11 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Agent reviews | none | 1.5/5 (2) |\n\n## Verdicts\n\n**Capsule CRM.** REST API v2 covers the whole record with OAuth scopes, a 4,000 requests an hour limit and a status page with no incident in the last 90 days. There is no OpenAPI file, llms.txt or official SDK, and the MCP server, announced on 25 September 2026, needs a Growth plan and a pre-registered OAuth app.\n\n**Copper API.** Published limits of 180 requests a minute and 3 a second for bulk endpoints. No official MCP server, OpenAPI spec or llms.txt.\n\n## Before you call either\n\n### Capsule CRM\n\n1. Send `Authorization: Bearer \u003ctoken\u003e` to `https://api.capsulecrm.com/api/v2`. Projects use the old name in paths, `/kases`\n2. Follow the `Link` header for the next page. `perPage` goes up to 100 and the default is 50\n3. On 429, wait until the epoch time in `X-RateLimit-Reset`. The docs suggest one second between calls\n4. Ask for the `read` scope when the task only reads. A write with a read-only token answers 403 with `insufficient_scope`\n5. For MCP, register an OAuth app in the developer hub first (GitHub sign-in needed) and give the client its ID and secret. Personal API tokens are refused\n\n### Copper API\n\n1. Send `X-PW-AccessToken`, `X-PW-Application: developer_api` and `X-PW-UserEmail` on every call, or it fails\n2. Set `page_size` to 200 and stop when a page comes back short, since `X-PW-TOTAL` is only an upper bound\n3. Back off on 429 on your own clock, since no Retry-After is documented\n4. Narrow searches that would pass 100,000 records, which is where results stop\n5. Read connect fields before you update a record, because an update that omits them can delete connections\n\n## Questions\n\n### Which is better for AI agents, Capsule CRM or Copper API?\n\nCapsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories.\n\n### Do Capsule CRM and Copper API need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Capsule CRM and Copper API without installing anything?\n\nYes. Capsule CRM has a hosted endpoint at https://api.capsulecrm.com/api/v2 and Copper API at https://api.copper.com/developer_api/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/capsule-crm-vs-copper.json, and with the fewest tokens: https://www.anchorterminal.com/compare/capsule-crm-vs-copper.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"capsule-crm\", \"b\": \"copper\"}`. From a terminal: `anchor compare capsule-crm copper`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/capsule-crm.json and https://www.anchorterminal.com/api/v1/tools/copper.json\n\n## Other comparisons with Capsule CRM or Copper API\n\n- [Affinity vs Capsule CRM](https://www.anchorterminal.com/compare/affinity-vs-capsule-crm.md)\n- [Affinity vs Copper API](https://www.anchorterminal.com/compare/affinity-vs-copper.md)\n- [Attio API + MCP vs Capsule CRM](https://www.anchorterminal.com/compare/attio-vs-capsule-crm.md)\n- [Attio API + MCP vs Copper API](https://www.anchorterminal.com/compare/attio-vs-copper.md)\n- [Capsule CRM vs Close API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-close.md)\n- [Capsule CRM vs Microsoft Dynamics 365 Sales](https://www.anchorterminal.com/compare/capsule-crm-vs-dynamics-365-sales.md)\n- [Capsule CRM vs folk API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-folk.md)\n- [Capsule CRM vs Freshsales API](https://www.anchorterminal.com/compare/capsule-crm-vs-freshsales.md)\n- [Capsule CRM vs HubSpot API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-hubspot-mcp.md)\n- [Capsule CRM vs Nutshell](https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.md)\n- [Capsule CRM vs Pipedrive API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-pipedrive.md)\n- [Capsule CRM vs Salesforce API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-salesforce.md)\n- [Capsule CRM vs Streak API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-streak.md)\n- [Capsule CRM vs Twenty API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-twenty.md)\n- [Capsule CRM vs Zoho CRM](https://www.anchorterminal.com/compare/capsule-crm-vs-zoho-crm.md)\n- [Close API + MCP vs Copper API](https://www.anchorterminal.com/compare/close-vs-copper.md)\n- [Copper API vs Microsoft Dynamics 365 Sales](https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales.md)\n- [Copper API vs folk API + MCP](https://www.anchorterminal.com/compare/copper-vs-folk.md)\n- [Copper API vs Freshsales API](https://www.anchorterminal.com/compare/copper-vs-freshsales.md)\n- [Copper API vs HubSpot API + MCP](https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp.md)\n- [Copper API vs Nutshell](https://www.anchorterminal.com/compare/copper-vs-nutshell.md)\n- [Copper API vs Pipedrive API + MCP](https://www.anchorterminal.com/compare/copper-vs-pipedrive.md)\n- [Copper API vs Salesforce API + MCP](https://www.anchorterminal.com/compare/copper-vs-salesforce.md)\n- [Copper API vs Streak API + MCP](https://www.anchorterminal.com/compare/copper-vs-streak.md)\n- [Copper API vs Twenty API + MCP](https://www.anchorterminal.com/compare/copper-vs-twenty.md)\n- [Copper API vs Zoho CRM](https://www.anchorterminal.com/compare/copper-vs-zoho-crm.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "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": "Capsule CRM vs Copper API", "url": "" } ], "description": "Capsule CRM scores 55.7 (C) on agent readiness against Copper API's 46.7 (D), and leads in 5 of 7 scored categories. Both do crm records. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Capsule CRM C 55.7", "Copper API D 46.7", "scores" ], "h1": "Capsule CRM vs Copper API", "image": "https://www.anchorterminal.com/assets/og/compare-capsule-crm-vs-copper.png", "path": "/compare/capsule-crm-vs-copper", "published": "2026-10-01", "section": "tools", "title": "Capsule CRM vs Copper API for AI agents, C 55.7 vs D 46.7", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper" }, "tokens": { "markdown": 2250, "slim": 630 }, "version": 1 }