{ "data": { "a": { "slug": "particle-health", "name": "Particle Health", "vendor": "Particle Health, Inc.", "vendorUrl": "https://particlehealth.com", "kind": "http-api", "category": "health-data", "summary": "Particle Health retrieves patient records from Carequality, CommonWell, eHealth Exchange, state HIEs and Surescripts, and returns them as FHIR R4B, flat datasets or C-CDA through a REST API, with Signal webhooks for care events.", "url": "https://www.anchorterminal.com/tools/particle-health", "markdownUrl": "https://www.anchorterminal.com/tools/particle-health.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/particle-health.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/particle-health.json", "license": "Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only", "transports": [ "http" ], "packages": [], "auth": "oauth", "authNotes": "OAuth 2.0 client credentials. A Particle representative issues the first client ID and secret, after which the Management APIs can create service accounts and credentials, and creating new credentials expires the old ones. Each token request must name one project as its scope, and tokens last 60 minutes. Service accounts carry IAM roles such as `roles/project.owner`.", "pricing": "paid", "pricingNotes": "No public prices. The developers page links 'play for free' to portal.particlehealth.com/signup, which did not resolve on 14 October 2026, and the docs ask developers to contact a representative for credentials. The sandbox allows 500 queries per organisation a day (checked 2026-10-14).", "priceSummary": "Paid", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, llms.txt or the website (checked 2026-10-14).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-14" }, "docsUrl": "https://docs.particlehealth.com", "llmsTxt": "https://docs.particlehealth.com/llms.txt", "capabilities": [ "health.records", "health.fhir" ], "tags": [ "hosted", "health-records", "fhir", "ccda", "oauth", "llms-txt", "webhooks", "status-page", "sales-led", "hitrust", "soc2" ], "graded": true, "anchor": { "graded": true, "score": 48.6, "grade": "D", "agentReady": false, "rank": 867, "ranked": true, "rankOf": 1076, "categoryRank": 11, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 53, "maintenance": 27, "payments": 5, "reliability": 58, "schema": 69, "security": 57, "transparency": 48 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-14" }, "negative": 0, "verdict": "Particle queries Carequality, CommonWell, eHealth Exchange and state HIEs for a patient and returns FHIR R4B, flat data or C-CDA, with project-scoped 60-minute tokens and OpenAPI fragments per endpoint. Credentials come through a representative, the free sign-up link was dead on 14 October 2026, and rate limits, SLA and changelog are unpublished.", "bestFor": "US providers, payers and digital health companies that need a patient's network records as FHIR or flat data, and care-event alerts.", "strengths": [ "Connected to all three national networks plus Healthix, Manifest MedEx and Surescripts", "Tokens scoped to one project and expiring after 60 minutes, with credential rotation that retires old secrets", "FHIR R4B, flat datasets and C-CDA from the same query", "Sandbox of synthetic patients across every production workflow, 500 queries a day" ], "weaknesses": [ "Credentials come from a Particle representative, and the 'play for free' sign-up domain did not resolve", "Rate limits vary with load and have no published numbers", "No changelog, SLA or developer terms in public", "No audit log for operators was found" ], "agentNotes": [ "Pass `projects/\u003cproject_id\u003e` as the scope when requesting a token, and request a new one every 60 minutes", "Poll Get Query Status, or wait for the query-complete webhook, before reading FHIR or flat data", "Back off on 429, since limits change with system load", "Pass continuation tokens back verbatim when paging", "Use the published synthetic patients in sandbox, and stay under 500 queries a day" ], "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": 48.6 } ], "editorialScores": { "ergonomics": 53, "maintenance": 27, "payments": 5, "reliability": 58, "schema": 69, "security": 57, "transparency": 27 }, "provenanceScore": 69 }, "connect": { "http": "POST https://sandbox.particlehealth.com/api/v2/patients\nAuthorization: Bearer \u003caccess-token\u003e\nContent-Type: application/json" }, "letme": { "capability": "https://letme.dev/health.records", "tool": "https://letme.dev/particle-health" }, "area": "domain-data", "provenance": { "legalEntity": "Particle Health, Inc.", "domain": "particlehealth.com", "domainRegistered": "2017-11-22", "endpointOnVendorDomain": true, "terms": "https://particlehealth.com/terms-of-use", "privacy": "https://particlehealth.com/privacy-policy", "statusPage": "https://status.particlehealth.com", "changelog": "", "securityTxt": "none", "checked": "2026-10-14", "notes": [ "The terms of use (effective 15 October 2020) cover the website, forbid users to 'harvest or scrape any content or data from the Site', and may change without notice. We read them as a fact and fetched only what robots.txt allows.", "The privacy policy (effective 29 July 2026) covers information collected through the site only and says Particle may keep de-identified data in aggregate.", "The security page lists HITRUST and SOC 2 for the API platform and links a vulnerability submission form. particlehealth.com/.well-known/security.txt returns 404.", "docs.particlehealth.com/changelog returns 404. No public changelog was found.", "RDAP gives particlehealth.com a registration date of 2017-11-22." ], "score": 69 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/particle-health.json", "live": { "slug": "particle-health", "vendorStatus": { "page": "https://status.particlehealth.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-14T09:53:19.028297263Z" }, "updatedAt": "2026-10-14T09:53:19.028297263Z" } }, "answer": "Terra API scores 65.9 (B) on agent readiness against Particle Health's 48.6 (D), and leads in every scored category.", "b": { "slug": "terra", "name": "Terra API", "vendor": "Terra Enabling Developers Inc.", "vendorUrl": "https://tryterra.co", "kind": "http-api", "category": "health-data", "summary": "Terra's Unified API collects activity, sleep, body and nutrition data from 500+ wearables and health apps, normalises it into one schema and sends it by webhook or REST. An MCP server, Terra AI, lets agents read a connected user's data.", "url": "https://www.anchorterminal.com/tools/terra", "markdownUrl": "https://www.anchorterminal.com/tools/terra.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/terra.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/terra.json", "repo": "https://github.com/tryterra/openapi", "license": "Proprietary service under Terra's terms of service. The OpenAPI specs repository is Apache 2.0", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e", "packages": [ { "registry": "pypi", "name": "terra-python" }, { "registry": "npm", "name": "terra-api" }, { "registry": "npm", "name": "@tryterra/cli" } ], "auth": "mixed", "authNotes": "A self-serve dashboard account gives a dev-id and one x-api-key per environment, sent as headers to the Unified API and to Terra AI. The key has no scopes and can be rotated. The admin API and admin MCP server take personal access tokens with 26 scopes, lifetimes of 7 to 90 days and optional environment limits. The admin MCP server signs in by OAuth, and risky changes need approval in the dashboard. End users connect each wearable through Terra's widget, and Terra holds the provider tokens.", "pricing": "usage", "pricingNotes": "Quick Start from $499 a month includes 100,000 credits, then $0.005 a credit to 1,000,000 and $0.003 above. Sign-up asks for a plan and billing details, with a 30-day money-back guarantee and no free tier found. Testing and staging environments allow 50 users each. Enterprise is custom (checked 2026-10-14).", "priceSummary": "$499 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI specs or the pricing page (checked 2026-10-14).", "endpoints": [] }, "toolCount": 6, "popularity": { "githubStars": null, "npmWeekly": 13061, "pypiWeekly": 10636, "asOf": "2026-10-14" }, "docsUrl": "https://docs.tryterra.co", "llmsTxt": "https://docs.tryterra.co/llms.txt", "openapi": "https://raw.githubusercontent.com/tryterra/openapi/master/dist/core/v2-bundled.yaml", "capabilities": [ "health.wearables", "health.consent", "health.fhir" ], "tags": [ "hosted", "wearables", "health-data", "mcp", "api-key", "openapi", "llms-txt", "webhooks", "status-page", "python", "typescript", "soc2", "hipaa" ], "lastRelease": "2026-10-13", "graded": true, "anchor": { "graded": true, "score": 65.9, "grade": "B", "agentReady": false, "rank": 327, "ranked": true, "rankOf": 1076, "categoryRank": 2, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 78, "maintenance": 75, "payments": 20, "reliability": 67, "schema": 89, "security": 65, "transparency": 56 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-14" }, "negative": 0, "verdict": "Graded on the Unified API and the Terra AI MCP server. A public OpenAPI 3.1 spec, llms.txt, per-user rate limits with Retry-After, and scoped admin tokens with approvals. Access starts at $499 a month with billing details at sign-up, the data API key has no scopes, and API key requests failed for 2 hours 38 minutes on 7 August 2026.", "bestFor": "A fitness, wellness, insurance or research product whose users connect consumer wearables and apps, and an agent that needs to read one user's sleep, activity or body data through MCP.", "strengths": [ "Public OpenAPI 3.1 specs on GitHub under Apache 2.0, republished almost daily (spec version 2026.10.08.1 for the Unified API)", "Rate limits documented per user, with a Retry-After header and an X-Terra-RateLimit-Rule header naming the rule that fired", "Terra AI MCP server has six read tools that take explicit fields or select lists, so an agent fetches only the columns it needs", "Admin tokens carry 26 scopes, expire within 90 days, can be limited to environments, and risky changes need approval in the dashboard", "Credit prices are public, $0.005 a credit from 100,001 to 1,000,000 and $0.003 above, with 200 credits per active user a month" ], "weaknesses": [ "No free tier. Sign-up asks for a plan and billing details, and Quick Start starts at $499 a month with a 30-day money-back guarantee", "The Unified API key is one environment-wide x-api-key with no scopes, and Terra AI takes the same key", "status.tryterra.co shows REST requests failing with authorisation errors for 2 hours 38 minutes on 7 August 2026", "No SLA is published outside Enterprise contracts, and no idempotency keys were found for write endpoints", "The privacy policy, effective 20 April 2023, excludes end-user wearable data, and no public sub-processor list was found" ], "agentNotes": [ "Send dev-id and x-api-key headers on every Unified API and Terra AI call. A missing header returns 401 problem+json", "Keep each request window to 1,825 days or less and under 6,000 requested days per user an hour. On 429 with rule r2, wait Retry-After seconds", "Pass either fields or select to Terra AI tools, never both and never neither, or the call fails with a validation error", "Expect data by webhook after a user connects through the widget session. REST reads are for backfills and on-demand queries", "Use the Read only access level for the admin MCP server unless a change is needed. The MCP level can read API keys" ], "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": 65.9 } ], "editorialScores": { "ergonomics": 78, "maintenance": 75, "payments": 20, "reliability": 67, "schema": 89, "security": 65, "transparency": 42 }, "provenanceScore": 69 }, "connect": { "claudeCode": "claude mcp add --transport http terra-ai https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e --header \"dev-id: \u003cYOUR_DEV_ID\u003e\" --header \"x-api-key: \u003cYOUR_API_KEY\u003e\"", "config": { "mcpServers": { "terra-ai": { "headers": { "dev-id": "YOUR_DEV_ID", "x-api-key": "YOUR_API_KEY" }, "url": "https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e" } } } }, "letme": { "capability": "https://letme.dev/health.wearables", "tool": "https://letme.dev/terra" }, "area": "domain-data", "unitPrices": [ { "item": "Quick Start plan, 100,000 credits included", "unit": "month", "usd": 499, "note": "From price on tryterra.co/pricing, 2026-10-14" }, { "item": "Credit beyond the monthly allowance (100,001 to 1,000,000)", "unit": "credit", "usd": 0.005, "note": "$0.003 above 1,000,000 credits. An active user costs 200 credits a month" } ], "provenance": { "legalEntity": "Terra Enabling Developers Inc.", "domain": "tryterra.co", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://tryterra.co/terms-of-service", "privacy": "https://tryterra.co/privacy", "statusPage": "https://status.tryterra.co", "changelog": "https://docs.tryterra.co/changelog/2026/readme", "securityTxt": "none", "checked": "2026-10-14", "notes": [ "The terms of service, last updated 1 May 2026, are between the customer and Terra Enabling Developers Inc., a Delaware corporation. The privacy policy names a UK subsidiary, Terra Enabling Developers Ltd.", "The privacy policy (effective 20 April 2023) says it doesn't cover data collected from wearables about end users, and that processing takes place mainly in the United Kingdom.", "tryterra.co/.well-known/security.txt returns 404.", "RDAP for tryterra.co returned no registration date.", "API and MCP endpoints answer at access.tryterra.co, a tryterra.co subdomain." ], "score": 69 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/terra.json", "live": { "slug": "terra", "probe": { "target": "https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e", "method": "get", "lastAt": "2026-10-14T10:00:07.899081041Z", "lastOk": true, "lastStatus": 401, "lastMs": 46, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 47, "p95ms24h": 97, "samples24h": 20, "samples30d": 20, "days": [ { "date": "2026-10-14", "probes": 20, "ok": 20 } ] }, "vendorStatus": { "page": "https://status.tryterra.co", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-14T08:54:00.980823971Z" }, "updatedAt": "2026-10-14T10:00:07.899081041Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Particle Health, Inc.", "b": "Terra Enabling Developers Inc.", "name": "Vendor" }, { "a": "no (local only)", "b": "https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "OAuth", "b": "OAuth or key", "name": "Auth" }, { "a": "Paid", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only", "b": "Proprietary service under Terra's terms of service. The OpenAPI specs repository is Apache 2.0", "name": "Licence" }, { "a": "none", "b": "6", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "none", "b": "2026-10-13", "name": "Last release" }, { "a": "2020-10-15", "b": "2026-05-01", "name": "Terms last updated" }, { "a": "2026-07-29", "b": "2023-04-20", "name": "Privacy policy last updated" }, { "a": "not found in the text", "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": "yes", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "13k npm/wk, 11k PyPI/wk", "name": "Popularity" } ], "faq": [ { "answer": "Terra API scores 65.9 (B) on agent readiness against Particle Health's 48.6 (D), and leads in every scored category.", "question": "Which is better for AI agents, Particle Health or Terra API?" }, { "answer": "Particle Health uses an OAuth sign-in. Terra API takes an API key or an OAuth sign-in.", "question": "Do Particle Health and Terra API need an API key?" }, { "answer": "No hosted endpoint is listed for Particle Health. Terra API has a hosted endpoint at https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e.", "question": "Can an agent call Particle Health and Terra API without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "US providers, payers and digital health companies that need a patient's network records as FHIR or flat data, and care-event alerts.", "slug": "particle-health", "watchFor": "Credentials come from a Particle representative, and the 'play for free' sign-up domain did not resolve" }, { "aheadOn": [ "Reliability, 67 against 58", "Schema \u0026 documentation, 89 against 69", "Agent ergonomics, 78 against 53", "Security \u0026 auth, 65 against 57", "Payments \u0026 pricing, 20 against 5", "Maintenance \u0026 community, 75 against 27", "Transparency \u0026 trust, 56 against 48" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "A fitness, wellness, insurance or research product whose users connect consumer wearables and apps, and an agent that needs to read one user's sleep, activity or body data through MCP.", "slug": "terra", "watchFor": "No free tier. Sign-up asks for a plan and billing details, and Quick Start starts at $499 a month with a 30-day money-back guarantee" } ], "job": { "capability": "health.fhir", "name": "FHIR servers" }, "others": [ { "json": "https://www.anchorterminal.com/compare/1uphealth-vs-terra.json", "title": "1upHealth vs Terra API", "url": "https://www.anchorterminal.com/compare/1uphealth-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/aidbox-vs-particle-health.json", "title": "Aidbox vs Particle Health", "url": "https://www.anchorterminal.com/compare/aidbox-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/aidbox-vs-terra.json", "title": "Aidbox vs Terra API", "url": "https://www.anchorterminal.com/compare/aidbox-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/health-gorilla-vs-terra.json", "title": "Health Gorilla vs Terra API", "url": "https://www.anchorterminal.com/compare/health-gorilla-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/medplum-vs-particle-health.json", "title": "Medplum vs Particle Health", "url": "https://www.anchorterminal.com/compare/medplum-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/medplum-vs-terra.json", "title": "Medplum vs Terra API", "url": "https://www.anchorterminal.com/compare/medplum-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/metriport-vs-terra.json", "title": "Metriport Medical API vs Terra API", "url": "https://www.anchorterminal.com/compare/metriport-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/particle-health-vs-rook.json", "title": "Particle Health vs ROOK", "url": "https://www.anchorterminal.com/compare/particle-health-vs-rook" }, { "json": "https://www.anchorterminal.com/compare/redox-vs-terra.json", "title": "Redox vs Terra API", "url": "https://www.anchorterminal.com/compare/redox-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/1uphealth-vs-particle-health.json", "title": "1upHealth vs Particle Health", "url": "https://www.anchorterminal.com/compare/1uphealth-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/health-gorilla-vs-particle-health.json", "title": "Health Gorilla vs Particle Health", "url": "https://www.anchorterminal.com/compare/health-gorilla-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/medblocks-vs-particle-health.json", "title": "Medblocks vs Particle Health", "url": "https://www.anchorterminal.com/compare/medblocks-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/metriport-vs-particle-health.json", "title": "Metriport Medical API vs Particle Health", "url": "https://www.anchorterminal.com/compare/metriport-vs-particle-health" }, { "json": "https://www.anchorterminal.com/compare/particle-health-vs-redox.json", "title": "Particle Health vs Redox", "url": "https://www.anchorterminal.com/compare/particle-health-vs-redox" }, { "json": "https://www.anchorterminal.com/compare/particle-health-vs-zus-health.json", "title": "Particle Health vs Zus Health", "url": "https://www.anchorterminal.com/compare/particle-health-vs-zus-health" }, { "json": "https://www.anchorterminal.com/compare/medblocks-vs-terra.json", "title": "Medblocks vs Terra API", "url": "https://www.anchorterminal.com/compare/medblocks-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/terra-vs-zus-health.json", "title": "Terra API vs Zus Health", "url": "https://www.anchorterminal.com/compare/terra-vs-zus-health" }, { "json": "https://www.anchorterminal.com/compare/rook-vs-terra.json", "title": "ROOK vs Terra API", "url": "https://www.anchorterminal.com/compare/rook-vs-terra" }, { "json": "https://www.anchorterminal.com/compare/terra-vs-validic.json", "title": "Terra API vs Validic Inform", "url": "https://www.anchorterminal.com/compare/terra-vs-validic" } ], "scores": [ { "by": 9, "edge": "terra", "key": "reliability", "name": "Reliability", "particle-health": 58, "terra": 67, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 20, "edge": "terra", "key": "schema", "name": "Schema \u0026 documentation", "particle-health": 69, "terra": 89, "weight": 13 }, { "by": 25, "edge": "terra", "key": "ergonomics", "name": "Agent ergonomics", "particle-health": 53, "terra": 78, "weight": 13 }, { "by": 8, "edge": "terra", "key": "security", "name": "Security \u0026 auth", "particle-health": 57, "terra": 65, "weight": 14 }, { "by": 15, "edge": "terra", "key": "payments", "name": "Payments \u0026 pricing", "particle-health": 5, "terra": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 48, "edge": "terra", "key": "maintenance", "name": "Maintenance \u0026 community", "particle-health": 27, "terra": 75, "weight": 7 }, { "by": 8, "edge": "terra", "key": "transparency", "name": "Transparency \u0026 trust", "particle-health": 48, "terra": 56, "weight": 7 } ], "summary": "Terra API scores 65.9 (B) on agent readiness against Particle Health's 48.6 (D), and leads in every scored category. Both do fhir servers.", "verdicts": { "particle-health": "Particle queries Carequality, CommonWell, eHealth Exchange and state HIEs for a patient and returns FHIR R4B, flat data or C-CDA, with project-scoped 60-minute tokens and OpenAPI fragments per endpoint. Credentials come through a representative, the free sign-up link was dead on 14 October 2026, and rate limits, SLA and changelog are unpublished.", "terra": "Graded on the Unified API and the Terra AI MCP server. A public OpenAPI 3.1 spec, llms.txt, per-user rate limits with Retry-After, and scoped admin tokens with approvals. Access starts at $499 a month with billing details at sign-up, the data API key has no scopes, and API key requests failed for 2 hours 38 minutes on 7 August 2026." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/particle-health-vs-terra", "json": "https://www.anchorterminal.com/compare/particle-health-vs-terra.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/particle-health-vs-terra.md", "slim": "https://www.anchorterminal.com/compare/particle-health-vs-terra.min.md" }, "markdown": "Terra API scores 65.9 (B) on agent readiness against Particle Health's 48.6 (D), and leads in every scored category. Both do fhir servers.\n\n- Particle Health: grade D, 48.6/100, rank #867 of 1076. Markdown https://www.anchorterminal.com/tools/particle-health.md · JSON https://www.anchorterminal.com/api/v1/tools/particle-health.json\n- Terra API: grade B, 65.9/100, rank #327 of 1076. Markdown https://www.anchorterminal.com/tools/terra.md · JSON https://www.anchorterminal.com/api/v1/tools/terra.json\n- Best health record and wellness data APIs for AI agents: https://www.anchorterminal.com/best/health-data/index.md\n- All 63 health comparisons: https://www.anchorterminal.com/compare/health-data/index.md\n\n## Which one, for what\n\n### Particle Health (D)\n\nGood for: US providers, payers and digital health companies that need a patient's network records as FHIR or flat data, and care-event alerts.\n\nWatch for: Credentials come from a Particle representative, and the 'play for free' sign-up domain did not resolve\n\n### Terra API (B)\n\nGood for: A fitness, wellness, insurance or research product whose users connect consumer wearables and apps, and an agent that needs to read one user's sleep, activity or body data through MCP.\n\nAhead on:\n- Reliability, 67 against 58\n- Schema \u0026 documentation, 89 against 69\n- Agent ergonomics, 78 against 53\n- Security \u0026 auth, 65 against 57\n- Payments \u0026 pricing, 20 against 5\n- Maintenance \u0026 community, 75 against 27\n- Transparency \u0026 trust, 56 against 48\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: No free tier. Sign-up asks for a plan and billing details, and Quick Start starts at $499 a month with a 30-day money-back guarantee\n\n\n## Score by category\n\n| Category | Weight | Particle Health | Terra API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 58 | 67 | Terra API +9 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 69 | 89 | Terra API +20 |\n| Agent ergonomics | 13% (16.2 this run) | 53 | 78 | Terra API +25 |\n| Security \u0026 auth | 14% (17.5 this run) | 57 | 65 | Terra API +8 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 5 | 20 | Terra API +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 27 | 75 | Terra API +48 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 48 | 56 | Terra API +8 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.6 · D** | **65.9 · B** | |\n\n## Facts side by side\n\n| Fact | Particle Health | Terra API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Particle Health, Inc. | Terra Enabling Developers Inc. |\n| Hosted endpoint | no (local only) | `https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth | OAuth or key |\n| Pricing | Paid | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary service under customer agreements. The public terms of use (effective 15 October 2020) cover the website only | Proprietary service under Terra's terms of service. The OpenAPI specs repository is Apache 2.0 |\n| Tools exposed | none | 6 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | none | 2026-10-13 |\n| Terms last updated | 2020-10-15 | 2026-05-01 |\n| Privacy policy last updated | 2026-07-29 | 2023-04-20 |\n| Customer content may train models | not found in the text | 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 | yes |\n| Terms or service can change without notice | yes | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | none | 13k npm/wk, 11k PyPI/wk |\n\n## Verdicts\n\n**Particle Health.** Particle queries Carequality, CommonWell, eHealth Exchange and state HIEs for a patient and returns FHIR R4B, flat data or C-CDA, with project-scoped 60-minute tokens and OpenAPI fragments per endpoint. Credentials come through a representative, the free sign-up link was dead on 14 October 2026, and rate limits, SLA and changelog are unpublished.\n\n**Terra API.** Graded on the Unified API and the Terra AI MCP server. A public OpenAPI 3.1 spec, llms.txt, per-user rate limits with Retry-After, and scoped admin tokens with approvals. Access starts at $499 a month with billing details at sign-up, the data API key has no scopes, and API key requests failed for 2 hours 38 minutes on 7 August 2026.\n\n## Before you call either\n\n### Particle Health\n\n1. Pass `projects/\u003cproject_id\u003e` as the scope when requesting a token, and request a new one every 60 minutes\n2. Poll Get Query Status, or wait for the query-complete webhook, before reading FHIR or flat data\n3. Back off on 429, since limits change with system load\n4. Pass continuation tokens back verbatim when paging\n5. Use the published synthetic patients in sandbox, and stay under 500 queries a day\n\n### Terra API\n\n1. Send dev-id and x-api-key headers on every Unified API and Terra AI call. A missing header returns 401 problem+json\n2. Keep each request window to 1,825 days or less and under 6,000 requested days per user an hour. On 429 with rule r2, wait Retry-After seconds\n3. Pass either fields or select to Terra AI tools, never both and never neither, or the call fails with a validation error\n4. Expect data by webhook after a user connects through the widget session. REST reads are for backfills and on-demand queries\n5. Use the Read only access level for the admin MCP server unless a change is needed. The MCP level can read API keys\n\n## Questions\n\n### Which is better for AI agents, Particle Health or Terra API?\n\nTerra API scores 65.9 (B) on agent readiness against Particle Health's 48.6 (D), and leads in every scored category.\n\n### Do Particle Health and Terra API need an API key?\n\nParticle Health uses an OAuth sign-in. Terra API takes an API key or an OAuth sign-in.\n\n### Can an agent call Particle Health and Terra API without installing anything?\n\nNo hosted endpoint is listed for Particle Health. Terra API has a hosted endpoint at https://access.tryterra.co/api/v2/mcp/\u003cuser_id\u003e.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/particle-health-vs-terra.json, and with the fewest tokens: https://www.anchorterminal.com/compare/particle-health-vs-terra.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"particle-health\", \"b\": \"terra\"}`. From a terminal: `anchor compare particle-health terra`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/particle-health.json and https://www.anchorterminal.com/api/v1/tools/terra.json\n\n## Other comparisons with Particle Health or Terra API\n\n- [1upHealth vs Terra API](https://www.anchorterminal.com/compare/1uphealth-vs-terra.md)\n- [Aidbox vs Particle Health](https://www.anchorterminal.com/compare/aidbox-vs-particle-health.md)\n- [Aidbox vs Terra API](https://www.anchorterminal.com/compare/aidbox-vs-terra.md)\n- [Health Gorilla vs Terra API](https://www.anchorterminal.com/compare/health-gorilla-vs-terra.md)\n- [Medplum vs Particle Health](https://www.anchorterminal.com/compare/medplum-vs-particle-health.md)\n- [Medplum vs Terra API](https://www.anchorterminal.com/compare/medplum-vs-terra.md)\n- [Metriport Medical API vs Terra API](https://www.anchorterminal.com/compare/metriport-vs-terra.md)\n- [Particle Health vs ROOK](https://www.anchorterminal.com/compare/particle-health-vs-rook.md)\n- [Redox vs Terra API](https://www.anchorterminal.com/compare/redox-vs-terra.md)\n- [1upHealth vs Particle Health](https://www.anchorterminal.com/compare/1uphealth-vs-particle-health.md)\n- [Health Gorilla vs Particle Health](https://www.anchorterminal.com/compare/health-gorilla-vs-particle-health.md)\n- [Medblocks vs Particle Health](https://www.anchorterminal.com/compare/medblocks-vs-particle-health.md)\n- [Metriport Medical API vs Particle Health](https://www.anchorterminal.com/compare/metriport-vs-particle-health.md)\n- [Particle Health vs Redox](https://www.anchorterminal.com/compare/particle-health-vs-redox.md)\n- [Particle Health vs Zus Health](https://www.anchorterminal.com/compare/particle-health-vs-zus-health.md)\n- [Medblocks vs Terra API](https://www.anchorterminal.com/compare/medblocks-vs-terra.md)\n- [Terra API vs Zus Health](https://www.anchorterminal.com/compare/terra-vs-zus-health.md)\n- [ROOK vs Terra API](https://www.anchorterminal.com/compare/rook-vs-terra.md)\n- [Terra API vs Validic Inform](https://www.anchorterminal.com/compare/terra-vs-validic.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-14", "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": "Particle Health vs Terra API", "url": "" } ], "description": "Terra scores 65.9 (B) to Particle Health's 48.6 (D) for fhir servers. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Particle Health D 48.6", "Terra API B 65.9", "scores" ], "h1": "Particle Health vs Terra API", "image": "https://www.anchorterminal.com/assets/og/compare-particle-health-vs-terra.png", "path": "/compare/particle-health-vs-terra", "published": "2026-10-01", "section": "tools", "title": "Particle Health vs Terra for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-14", "url": "https://www.anchorterminal.com/compare/particle-health-vs-terra" }, "tokens": { "markdown": 2350, "slim": 680 }, "version": 1 }