{ "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": "2026-10-08T21:12:07.04188748Z", "lastOk": true, "lastStatus": 200, "lastMs": 419, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 430, "p95ms24h": 472, "samples24h": 21, "samples30d": 21, "days": [ { "date": "2026-10-08", "probes": 21, "ok": 21 } ] }, "vendorStatus": { "page": "https://status.capsulecrm.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T21:05:53.545019567Z" }, "updatedAt": "2026-10-08T21:12:07.04188748Z" } }, "answer": "Capsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.", "b": { "slug": "nutshell", "name": "Nutshell", "vendor": "Nutshell, Inc.", "vendorUrl": "https://www.nutshell.com", "kind": "http-api", "category": "crm", "summary": "Nutshell is a sales CRM for small teams, with email marketing and quoting built in. Agents reach it through a REST API at `app.nutshell.com/rest`, a legacy JSON-RPC API, webhooks and a hosted read-only MCP server.", "url": "https://www.anchorterminal.com/tools/nutshell", "markdownUrl": "https://www.anchorterminal.com/tools/nutshell.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/nutshell.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/nutshell.json", "license": "Proprietary service under Nutshell's Terms of Service", "transports": [ "http" ], "remoteUrl": "https://app.nutshell.com/rest", "packages": [], "auth": "mixed", "authNotes": "REST and JSON-RPC use HTTP Basic over HTTPS, with a Nutshell user's email as the username and an API key as the password. An admin creates keys under Setup, API keys, and chooses a permission type, one of which allows impersonating any user. Keys have no scopes. The MCP server at `https://app.nutshell.com/mcp` uses OAuth authorisation code with PKCE (S256), dynamic client registration at `/oauth/register`, a revocation endpoint and two scopes, `read` and `write`. Access is self-serve on every plan and the trial.", "pricing": "paid", "pricingNotes": "No free plan. A 14-day trial needs no card, and the API and MCP server are included on every plan. Five plans a seat a month billed yearly, Foundation $13, Growth $25, Pro $42, Business $59 and Enterprise $79, or $19, $32, $49, $67 and $89 billed monthly. API calls are not billed separately. The docs publish sandbox credentials for a demo account (https://www.nutshell.com/pricing, checked 2026-10-08).", "priceSummary": "$13 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the developer docs, the OAuth metadata or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://developers.nutshell.com/", "llmsTxt": "https://developers.nutshell.com/llms.txt", "capabilities": [ "crm.records", "crm.pipeline", "crm.activities", "crm.search", "crm.webhooks" ], "tags": [ "hosted", "closed-source", "mcp", "oauth", "llms-txt", "webhooks", "no-card", "status-page", "soc2" ], "lastRelease": "2026-08-21", "graded": true, "anchor": { "graded": true, "score": 49.6, "grade": "D", "agentReady": false, "rank": 607, "ranked": true, "rankOf": 722, "categoryRank": 12, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 44, "maintenance": 46, "payments": 35, "reliability": 42, "schema": 57, "security": 58, "transparency": 71 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "The REST reference is served as Markdown with an OpenAPI fragment per operation, and the hosted MCP server uses OAuth with PKCE and can only read. No rate limit numbers, error format or API changelog were found in the reviewed documentation, and API keys carry no scopes.", "bestFor": "Small sales teams already on Nutshell who want an agent to read pipeline data over MCP or write records over REST at a low seat price.", "strengths": [ "API access and the MCP server are included on every plan, from Foundation at $13 a seat a month billed yearly", "`developers.nutshell.com/llms.txt` indexes 114 REST operations, each served as Markdown with its OpenAPI 3.0 definition", "Hosted MCP server at `https://app.nutshell.com/mcp` with OAuth, PKCE, dynamic client registration, a revocation endpoint and read-only tools", "Terms and privacy policy of 2 June 2026 both state that customer data is not used to train generalised AI models", "14-day trial with no card, and the docs publish sandbox credentials for a demo account" ], "weaknesses": [ "No rate limit numbers, 429 handling or Retry-After found for the REST API", "Error responses are documented on 9 of 114 operations, with no error body schema, and an unauthenticated REST call returns an HTML page", "API keys have no scopes or read-only type, and the key travels as an HTTP Basic password with a user's email", "No dated API changelog, no official SDK for REST and whole-spec OpenAPI download is disabled", "A database fault on 28 September 2026 left the application unavailable for some customers, marked major on the status page" ], "agentNotes": [ "Authenticate REST calls with HTTP Basic, a Nutshell user's email as username and the API key as password, against `https://app.nutshell.com/rest`", "Use IDs in the `\u003cnumber\u003e-\u003ctype\u003e` form, such as `3-accounts`, and send updates as JSON Patch with `content-type: application/json-patch+json`", "Page lists with `page[limit]` and `page[page]`, which is 0-based, and call `/accounts/list/fields` or the lead and contact equivalents for valid filter keys", "Use the REST API for writes. The MCP server only reads, and OAuth tokens need the `read` scope", "Filter webhook events yourself, because every webhook receives all events and subscriptions are created in Setup, not through the API" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 49.6 } ], "editorialScores": { "ergonomics": 44, "maintenance": 46, "payments": 35, "reliability": 42, "schema": 57, "security": 58, "transparency": 56 }, "provenanceScore": 86 }, "connect": { "http": "curl -u \"$NUTSHELL_USER_EMAIL:$NUTSHELL_API_KEY\" \\\n --url https://app.nutshell.com/rest/accounts \\\n --header 'accept: */*'" }, "letme": { "capability": "https://letme.dev/crm.records", "tool": "https://letme.dev/nutshell" }, "area": "business", "unitPrices": [ { "item": "Foundation (API and MCP included, 100 open leads)", "unit": "seat-month", "usd": 13, "note": "billed yearly; $19 billed monthly" }, { "item": "Growth", "unit": "seat-month", "usd": 25, "note": "billed yearly; $32 billed monthly" }, { "item": "Pro", "unit": "seat-month", "usd": 42, "note": "billed yearly; $49 billed monthly" }, { "item": "Business (first plan with the audit log)", "unit": "seat-month", "usd": 59, "note": "billed yearly; $67 billed monthly" }, { "item": "Enterprise (SSO and SQL access)", "unit": "seat-month", "usd": 79, "note": "billed yearly; $89 billed monthly" } ], "provenance": { "legalEntity": "Nutshell, Inc.", "domain": "nutshell.com", "domainRegistered": "1995-05-02", "endpointOnVendorDomain": true, "terms": "https://www.nutshell.com/legal/terms", "privacy": "https://www.nutshell.com/legal/privacy", "statusPage": "https://status.nutshell.com", "changelog": "https://www.nutshell.com/product-updates", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The Terms of Service (last updated 2 June 2026) name Nutshell, Inc., 1705 North Front Street, Harrisburg, PA 17102, cover the applications and APIs, and are governed by Pennsylvania law. The site footer says Nutshell is brought to you by WebFX.", "The REST API, the JSON-RPC API and the MCP server all answer at app.nutshell.com.", "www.nutshell.com/.well-known/security.txt returns 404. The security page asks for reports at security@nutshell.com and says there is no bug bounty.", "The product updates page lists launches without dates and is not an API changelog. No dated API changelog was found.", "The subprocessor list is at trust.nutshell.com/subprocessors, a page drawn by script that we could not read.", "RDAP for nutshell.com gives a registration date of 1995-05-02." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/nutshell.json", "live": { "slug": "nutshell", "probe": { "target": "https://app.nutshell.com/rest", "method": "get", "lastAt": "2026-10-08T21:12:17.00492712Z", "lastOk": true, "lastStatus": 404, "lastMs": 254, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 270, "p95ms24h": 310, "samples24h": 21, "samples30d": 21, "days": [ { "date": "2026-10-08", "probes": 21, "ok": 21 } ] }, "vendorStatus": { "page": "https://status.nutshell.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T21:06:13.221021272Z" }, "updatedAt": "2026-10-08T21:12:17.00492712Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Zestia Limited", "b": "Nutshell, Inc.", "name": "Vendor" }, { "a": "https://api.capsulecrm.com/api/v2", "b": "https://app.nutshell.com/rest", "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": "Proprietary service under Nutshell's Terms of Service", "name": "Licence" }, { "a": "yes", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-25", "b": "2026-08-21", "name": "Last release" }, { "a": "no date given", "b": "2026-06-02", "name": "Terms last updated" }, { "a": "2025-08-21", "b": "2026-06-02", "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": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" } ], "faq": [ { "answer": "Capsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.", "question": "Which is better for AI agents, Capsule CRM or Nutshell?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do Capsule CRM and Nutshell need an API key?" }, { "answer": "Yes. Capsule CRM has a hosted endpoint at https://api.capsulecrm.com/api/v2 and Nutshell at https://app.nutshell.com/rest.", "question": "Can an agent call Capsule CRM and Nutshell without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 83 against 42", "Agent ergonomics, 59 against 44" ], "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": [ "Schema \u0026 documentation, 57 against 48", "Security \u0026 auth, 58 against 46", "Payments \u0026 pricing, 35 against 30", "Maintenance \u0026 community, 46 against 38" ], "also": null, "goodFor": "Small sales teams already on Nutshell who want an agent to read pipeline data over MCP or write records over REST at a low seat price.", "slug": "nutshell", "watchFor": "No rate limit numbers, 429 handling or Retry-After found for the REST API" } ], "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-nutshell.json", "title": "Affinity vs Nutshell", "url": "https://www.anchorterminal.com/compare/affinity-vs-nutshell" }, { "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-nutshell.json", "title": "Attio API + MCP vs Nutshell", "url": "https://www.anchorterminal.com/compare/attio-vs-nutshell" }, { "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-copper.json", "title": "Capsule CRM vs Copper API", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper" }, { "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-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-nutshell.json", "title": "Close API + MCP vs Nutshell", "url": "https://www.anchorterminal.com/compare/close-vs-nutshell" }, { "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/dynamics-365-sales-vs-nutshell.json", "title": "Microsoft Dynamics 365 Sales vs Nutshell", "url": "https://www.anchorterminal.com/compare/dynamics-365-sales-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/folk-vs-nutshell.json", "title": "folk API + MCP vs Nutshell", "url": "https://www.anchorterminal.com/compare/folk-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/freshsales-vs-nutshell.json", "title": "Freshsales API vs Nutshell", "url": "https://www.anchorterminal.com/compare/freshsales-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/hubspot-mcp-vs-nutshell.json", "title": "HubSpot API + MCP vs Nutshell", "url": "https://www.anchorterminal.com/compare/hubspot-mcp-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/nutshell-vs-pipedrive.json", "title": "Nutshell vs Pipedrive API + MCP", "url": "https://www.anchorterminal.com/compare/nutshell-vs-pipedrive" }, { "json": "https://www.anchorterminal.com/compare/nutshell-vs-salesforce.json", "title": "Nutshell vs Salesforce API + MCP", "url": "https://www.anchorterminal.com/compare/nutshell-vs-salesforce" }, { "json": "https://www.anchorterminal.com/compare/nutshell-vs-streak.json", "title": "Nutshell vs Streak API + MCP", "url": "https://www.anchorterminal.com/compare/nutshell-vs-streak" }, { "json": "https://www.anchorterminal.com/compare/nutshell-vs-twenty.json", "title": "Nutshell vs Twenty API + MCP", "url": "https://www.anchorterminal.com/compare/nutshell-vs-twenty" }, { "json": "https://www.anchorterminal.com/compare/nutshell-vs-zoho-crm.json", "title": "Nutshell vs Zoho CRM", "url": "https://www.anchorterminal.com/compare/nutshell-vs-zoho-crm" } ], "scores": [ { "by": 41, "capsule-crm": 83, "edge": "capsule-crm", "key": "reliability", "name": "Reliability", "nutshell": 42, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 9, "capsule-crm": 48, "edge": "nutshell", "key": "schema", "name": "Schema \u0026 documentation", "nutshell": 57, "weight": 13 }, { "by": 15, "capsule-crm": 59, "edge": "capsule-crm", "key": "ergonomics", "name": "Agent ergonomics", "nutshell": 44, "weight": 13 }, { "by": 12, "capsule-crm": 46, "edge": "nutshell", "key": "security", "name": "Security \u0026 auth", "nutshell": 58, "weight": 14 }, { "by": 5, "capsule-crm": 30, "edge": "nutshell", "key": "payments", "name": "Payments \u0026 pricing", "nutshell": 35, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 8, "capsule-crm": 38, "edge": "nutshell", "key": "maintenance", "name": "Maintenance \u0026 community", "nutshell": 46, "weight": 7 }, { "by": 4, "capsule-crm": 75, "edge": "capsule-crm", "key": "transparency", "name": "Transparency \u0026 trust", "nutshell": 71, "weight": 7 } ], "summary": "Capsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community. 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.", "nutshell": "The REST reference is served as Markdown with an OpenAPI fragment per operation, and the hosted MCP server uses OAuth with PKCE and can only read. No rate limit numbers, error format or API changelog were found in the reviewed documentation, and API keys carry no scopes." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell", "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.md", "slim": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.min.md" }, "markdown": "Capsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community. 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- Nutshell: grade D, 49.6/100, rank #607 of 722. Markdown https://www.anchorterminal.com/tools/nutshell.md · JSON https://www.anchorterminal.com/api/v1/tools/nutshell.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- Reliability, 83 against 42\n- Agent ergonomics, 59 against 44\n\nWatch for: No OpenAPI file, llms.txt or official SDK was found\n\n### Nutshell (D)\n\nGood for: Small sales teams already on Nutshell who want an agent to read pipeline data over MCP or write records over REST at a low seat price.\n\nAhead on:\n- Schema \u0026 documentation, 57 against 48\n- Security \u0026 auth, 58 against 46\n- Payments \u0026 pricing, 35 against 30\n- Maintenance \u0026 community, 46 against 38\n\nWatch for: No rate limit numbers, 429 handling or Retry-After found for the REST API\n\n\n## Score by category\n\n| Category | Weight | Capsule CRM | Nutshell | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 83 | 42 | Capsule CRM +41 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 57 | Nutshell +9 |\n| Agent ergonomics | 13% (16.2 this run) | 59 | 44 | Capsule CRM +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 46 | 58 | Nutshell +12 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 35 | Nutshell +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 38 | 46 | Nutshell +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 71 | Capsule CRM +4 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **55.7 · C** | **49.6 · D** | |\n\n## Facts side by side\n\n| Fact | Capsule CRM | Nutshell |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Zestia Limited | Nutshell, Inc. |\n| Hosted endpoint | `https://api.capsulecrm.com/api/v2` | `https://app.nutshell.com/rest` |\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 | Proprietary service under Nutshell's Terms of Service |\n| Read-only variant documented | yes | yes |\n| llms.txt | no | yes |\n| Last release | 2026-09-25 | 2026-08-21 |\n| Terms last updated | no date given | 2026-06-02 |\n| Privacy policy last updated | 2025-08-21 | 2026-06-02 |\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 | not found in the text |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | yes | yes |\n| Arbitration or class-action waiver | not found in the text | yes |\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**Nutshell.** The REST reference is served as Markdown with an OpenAPI fragment per operation, and the hosted MCP server uses OAuth with PKCE and can only read. No rate limit numbers, error format or API changelog were found in the reviewed documentation, and API keys carry no scopes.\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### Nutshell\n\n1. Authenticate REST calls with HTTP Basic, a Nutshell user's email as username and the API key as password, against `https://app.nutshell.com/rest`\n2. Use IDs in the `\u003cnumber\u003e-\u003ctype\u003e` form, such as `3-accounts`, and send updates as JSON Patch with `content-type: application/json-patch+json`\n3. Page lists with `page[limit]` and `page[page]`, which is 0-based, and call `/accounts/list/fields` or the lead and contact equivalents for valid filter keys\n4. Use the REST API for writes. The MCP server only reads, and OAuth tokens need the `read` scope\n5. Filter webhook events yourself, because every webhook receives all events and subscriptions are created in Setup, not through the API\n\n## Questions\n\n### Which is better for AI agents, Capsule CRM or Nutshell?\n\nCapsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.\n\n### Do Capsule CRM and Nutshell need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Capsule CRM and Nutshell without installing anything?\n\nYes. Capsule CRM has a hosted endpoint at https://api.capsulecrm.com/api/v2 and Nutshell at https://app.nutshell.com/rest.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.json, and with the fewest tokens: https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"capsule-crm\", \"b\": \"nutshell\"}`. From a terminal: `anchor compare capsule-crm nutshell`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/capsule-crm.json and https://www.anchorterminal.com/api/v1/tools/nutshell.json\n\n## Other comparisons with Capsule CRM or Nutshell\n\n- [Affinity vs Capsule CRM](https://www.anchorterminal.com/compare/affinity-vs-capsule-crm.md)\n- [Affinity vs Nutshell](https://www.anchorterminal.com/compare/affinity-vs-nutshell.md)\n- [Attio API + MCP vs Capsule CRM](https://www.anchorterminal.com/compare/attio-vs-capsule-crm.md)\n- [Attio API + MCP vs Nutshell](https://www.anchorterminal.com/compare/attio-vs-nutshell.md)\n- [Capsule CRM vs Close API + MCP](https://www.anchorterminal.com/compare/capsule-crm-vs-close.md)\n- [Capsule CRM vs Copper API](https://www.anchorterminal.com/compare/capsule-crm-vs-copper.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 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 Nutshell](https://www.anchorterminal.com/compare/close-vs-nutshell.md)\n- [Copper API vs Nutshell](https://www.anchorterminal.com/compare/copper-vs-nutshell.md)\n- [Microsoft Dynamics 365 Sales vs Nutshell](https://www.anchorterminal.com/compare/dynamics-365-sales-vs-nutshell.md)\n- [folk API + MCP vs Nutshell](https://www.anchorterminal.com/compare/folk-vs-nutshell.md)\n- [Freshsales API vs Nutshell](https://www.anchorterminal.com/compare/freshsales-vs-nutshell.md)\n- [HubSpot API + MCP vs Nutshell](https://www.anchorterminal.com/compare/hubspot-mcp-vs-nutshell.md)\n- [Nutshell vs Pipedrive API + MCP](https://www.anchorterminal.com/compare/nutshell-vs-pipedrive.md)\n- [Nutshell vs Salesforce API + MCP](https://www.anchorterminal.com/compare/nutshell-vs-salesforce.md)\n- [Nutshell vs Streak API + MCP](https://www.anchorterminal.com/compare/nutshell-vs-streak.md)\n- [Nutshell vs Twenty API + MCP](https://www.anchorterminal.com/compare/nutshell-vs-twenty.md)\n- [Nutshell vs Zoho CRM](https://www.anchorterminal.com/compare/nutshell-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 Nutshell", "url": "" } ], "description": "Capsule CRM scores 55.7 (C) on agent readiness against Nutshell's 49.6 (D), and leads in 3 of 7 scored categories. Nutshell leads on schema \u0026 documentation, security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community. Both do crm records. Category scores, facts, verdicts and…", "facts": [ "Capsule CRM C 55.7", "Nutshell D 49.6", "scores" ], "h1": "Capsule CRM vs Nutshell", "image": "https://www.anchorterminal.com/assets/og/compare-capsule-crm-vs-nutshell.png", "path": "/compare/capsule-crm-vs-nutshell", "published": "2026-10-01", "section": "tools", "title": "Capsule CRM vs Nutshell for AI agents, C 55.7 vs D 49.6", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-nutshell" }, "tokens": { "markdown": 2400, "slim": 630 }, "version": 1 }