{ "data": { "a": { "slug": "emdash", "name": "Emdash", "vendor": "General Action, Inc.", "vendorUrl": "https://emdash.sh", "kind": "harness", "category": "agent-harnesses", "summary": "Emdash is an open-source desktop app that runs coding agents such as Claude Code, Codex, OpenCode and Amp in parallel, each in its own Git worktree, locally or on remote machines over SSH, with issue intake and pull requests.", "url": "https://www.anchorterminal.com/tools/emdash", "markdownUrl": "https://www.anchorterminal.com/tools/emdash.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/emdash.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/emdash.json", "dns": "emdash.grade.anchorterminal.com", "repo": "https://github.com/generalaction/emdash", "license": "Apache-2.0", "transports": [], "packages": [], "auth": "none", "pricing": "free", "pricingNotes": "Free and open source. You pay for the coding agents it runs, through your own subscriptions or API keys (checked 2026-11-07).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No payment protocol in the repository or README (checked 2026-11-07).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://emdash.sh/docs", "capabilities": [ "agent.harness", "agent.multi-agent" ], "tags": [ "open-source", "apache-2.0", "desktop-app", "telemetry", "new" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 53.9, "grade": "D", "agentReady": false, "rank": 933, "ranked": true, "rankOf": 1510, "categoryRank": 35, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 55, "maintenance": 70, "payments": 60, "reliability": 55, "schema": 55, "security": 38, "transparency": 54 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-07" }, "negative": 0, "verdict": "A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.", "bestFor": "Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.", "strengths": [ "Each task in its own Git worktree and branch", "Issues from Linear, GitHub, Jira, GitLab, Asana and more go straight to an agent", "Works on remote machines over SSH", "Apache 2.0, version 1.2, with macOS, Windows and Linux builds" ], "weaknesses": [ "Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false", "No test workflow found, only consistency and release workflows", "No security policy file" ], "agentNotes": [ "Launch with TELEMETRY_ENABLED=false if you don't want telemetry", "Use the SSH mode to keep agents on a remote machine" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.9 } ], "editorialScores": { "ergonomics": 55, "maintenance": 70, "payments": 60, "reliability": 55, "schema": 55, "security": 38, "transparency": 68 }, "provenanceScore": 40, "checked": { "categories": { "ergonomics": "2026-11-07", "maintenance": "2026-11-07", "payments": "2026-11-07", "reliability": "2026-11-07", "schema": "2026-11-07", "security": "2026-11-07", "transparency": "2026-11-07" }, "last": "2026-11-07", "oldest": "2026-11-07", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "brew install --cask emdash" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/emdash" }, "area": "frameworks", "provenance": { "legalEntity": "General Action, Inc.", "domain": "emdash.sh", "domainRegistered": "", "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-11-07", "notes": [ "The licence names General Action, Inc.. The repository is github.com/generalaction/emdash." ], "score": 40 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/emdash.json", "live": { "slug": "emdash", "securityTxt": { "url": "https://emdash.sh/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:15.230445185Z" }, "updatedAt": "2026-11-07T16:01:15.230445185Z" } }, "answer": "OpenAI Agents API scores 73.3 (BB) on agent readiness against Emdash's 53.9 (D), and leads in 6 of 7 scored categories. Emdash leads on payments \u0026 pricing.", "b": { "slug": "openai-agents-api", "name": "OpenAI Agents API", "vendor": "OpenAI", "vendorUrl": "https://openai.com/index/introducing-the-agents-api/", "kind": "http-api", "category": "agent-harnesses", "summary": "The OpenAI Agents API runs OpenAI's managed Codex harness as a hosted service. One call creates a session with a model, tools, MCP servers, subagents and an OpenAI-hosted or self-hosted sandbox, and OpenAI runs the loop.", "url": "https://www.anchorterminal.com/tools/openai-agents-api", "markdownUrl": "https://www.anchorterminal.com/tools/openai-agents-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/openai-agents-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/openai-agents-api.json", "dns": "openai-agents-api.grade.anchorterminal.com", "license": "Proprietary hosted API under OpenAI's Services Agreement. The SDKs are Apache 2.0", "transports": [ "https" ], "remoteUrl": "https://api.openai.com/v1/agents/sessions", "packages": [ { "registry": "pypi", "name": "openai" }, { "registry": "npm", "name": "openai" } ], "auth": "api-key", "authNotes": "An OpenAI project API key as a Bearer token, with the header `OpenAI-Beta: agents=v1`. Project keys can be restricted per endpoint or read-only, and service accounts and workload identity federation are available, per the openai-api listing. Signing up and creating a key need a person in a browser.", "pricing": "usage", "pricingNotes": "No fee for the API itself. Model tokens are billed at the chosen model's API rates, OpenAI tools at their built-in rates (web search $10.00 per 1,000 calls plus content tokens), and OpenAI-hosted sandboxes at container rates, $0.03 for 1 GB, $0.12 for 4 GB, $0.48 for 16 GB and $1.92 for 64 GB per 20-minute session, billed by the minute with a 5-minute minimum. Since 9 October sandbox compute is billed only during active turns (checked 2026-11-06).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Agents API guides or on OpenAI's pricing page; billing is to an OpenAI account (checked 2026-11-06).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://developers.openai.com/api/docs/guides/agents-api/overview", "llmsTxt": "https://developers.openai.com/api/docs/llms.txt", "capabilities": [ "agent.harness" ], "tags": [ "official", "hosted", "beta", "usage-priced", "llms-txt", "status-page", "mcp-client", "sandbox", "subagents", "webhooks", "soc2", "iso27001", "bug-bounty" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 73.3, "grade": "BB", "agentReady": true, "rank": 111, "ranked": true, "rankOf": 1510, "categoryRank": 2, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 87, "payments": 30, "reliability": 60, "schema": 88, "security": 87, "transparency": 85 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-06" }, "negative": 0, "verdict": "OpenAI's hosted agent runtime, the Codex harness behind one session call, with MCP, functions, web search, computer use, subagents and sandboxes on OpenAI or your own infrastructure. Documentation, errors and SDKs are thorough. It's still public beta, can't use Zero Data Retention and keeps data in the United States only.", "bestFor": "Teams that want OpenAI to run the agent loop, with sandboxes, MCP tools and subagents, and are fine with a beta API, US-only data residency and no Zero Data Retention.", "strengths": [ "One session call configures the model, tools, MCP servers, subagents and the sandbox, and OpenAI runs and recovers the loop", "Sandboxes on OpenAI or self-hosted, with guides for ten providers including E2B, Daytona, Modal, Cloudflare and Vercel", "An errors guide with codes per status and turn, Retry-After and a check-before-retry procedure", "Webhooks, streamed events, tracing and usage views for each session", "SDK examples in Python, JavaScript, Go, Java and Ruby", "Status page with its own Agents component" ], "weaknesses": [ "Public beta since 10 September 2026 behind the agents=v1 beta header, with no GA date", "Not eligible for Zero Data Retention, and data residency is United States only", "No idempotency key for session or turn requests; retries depend on checking state first", "One API-wide major outage on 29 September included it, plus several smaller incidents since release", "No retention period stated for published artifacts after a sandbox expires" ], "agentNotes": [ "POST https://api.openai.com/v1/agents/sessions with a project key and the header OpenAI-Beta: agents=v1, or use client.beta.agents in the SDKs", "Before retrying, retrieve the session and turn and check which actions completed, since there's no idempotency key", "Set the sandbox network to restricted with an allowlist of up to 100 hosts when the agent doesn't need the open web", "Save files from /workspace/outputs before deleting a session; no retention period is stated for artifacts", "Don't send data that needs Zero Data Retention or non-US residency; the Agents API supports neither" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 73.3 } ], "editorialScores": { "ergonomics": 80, "maintenance": 87, "payments": 30, "reliability": 60, "schema": 88, "security": 87, "transparency": 75 }, "provenanceScore": 95, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl https://api.openai.com/v1/agents/sessions \\\n -H \"Authorization: Bearer $OPENAI_API_KEY\" \\\n -H \"OpenAI-Beta: agents=v1\" \\\n -H \"Content-Type: application/json\" \\\n -d @session.json # model, tools, environment and input, per the quickstart" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/openai-agents-api" }, "sameCompany": [ "openai-api", "openai-embeddings", "openai-guardrails", "openai-moderation", "openai-image-api", "openai-sora", "openai-speech-to-text", "gpt-live", "openai-realtime", "openai-agents-sdk", "openai-decisions-api", "openai-codex", "gpt-oss-120b", "gpt-oss-20b" ], "area": "frameworks", "provenance": { "legalEntity": "OpenAI OpCo, LLC", "domain": "openai.com", "domainRegistered": "2007-01-19", "domainNote": "openai.com was registered in 2007, before OpenAI existed, per the openai-api listing.", "endpointOnVendorDomain": true, "terms": "https://openai.com/policies/services-agreement/", "privacy": "https://openai.com/policies/privacy-policy/", "statusPage": "https://status.openai.com", "changelog": "https://developers.openai.com/api/docs/changelog", "securityTxt": "valid", "checked": "2026-11-06", "notes": [ "The endpoint is on api.openai.com, the same host as the rest of the OpenAI API. Terms, privacy, security.txt and the domain are the openai-api listing's readings." ], "score": 95 }, "requirements": { "setupChecked": true, "complianceChecked": true, "card": "paid-only", "freeTier": true, "minutes": 5, "credential": "api-key", "hosting": [ "US", "EU", "UK", "CA", "APAC" ], "euResidency": "enterprise", "trainsOnData": "no", "zeroRetention": "no", "certifications": [ "SOC 2 Type II", "ISO 27001", "ISO 27701", "ISO 42001", "CSA STAR", "HIPAA (BAA available)", "GDPR" ], "dpa": true, "selfHost": "no" }, "pageJsonUrl": "https://www.anchorterminal.com/tools/openai-agents-api.json", "live": { "slug": "openai-agents-api", "probe": { "target": "https://api.openai.com/v1/agents/sessions", "method": "get", "lastAt": "2026-11-07T19:22:23.485383455Z", "lastOk": true, "lastStatus": 400, "lastMs": 153, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 157, "p95ms24h": 423, "samples24h": 238, "samples30d": 383, "days": [ { "date": "2026-11-06", "probes": 186, "ok": 186 }, { "date": "2026-11-07", "probes": 197, "ok": 197 } ] }, "vendorStatus": { "page": "https://status.openai.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T19:22:48.798737993Z" }, "versions": [ { "registry": "npm", "name": "openai", "version": "7.53.0", "seenAt": "2026-11-06T23:51:32.154725858Z" }, { "registry": "pypi", "name": "openai", "version": "3.46.0", "released": "2026-11-05", "seenAt": "2026-11-06T23:51:32.023989712Z" } ], "npmWeekly": 56543040, "pypiWeekly": 91156146, "securityTxt": { "url": "https://openai.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-11-07T16:00:49.231731777Z" }, "llmsTxt": { "url": "https://developers.openai.com/api/docs/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:33:22.651391314Z" }, "updatedAt": "2026-11-07T19:22:48.798737993Z" } }, "edges": [ { "by": 49, "category": "security", "leads": "openai-agents-api", "name": "Security \u0026 auth", "reasons": { "a": "Harness reading. Telemetry is described as optional and disabled in Settings or with TELEMETRY_ENABLED=false, which reads as on by default (15 of 30). Worktree per task and remote machines over SSH (10 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 15 + 10 + 5 + 5 + 3 = 38.", "b": "Project keys with restricted per-endpoint permissions, service accounts and workload identity, per the openai-api listing; we didn't confirm a key can be limited to /v1/agents (27 of 30). Automatic review for approvals, a sandbox network restricted to a host allowlist, vaults for secrets and a sandbox security guide (17 of 20). The agent reads web pages, MCP results and browser content; the sandbox security guide and approval flow are the mitigations, with no prompt-injection guide of its own found (8 of 15). Tracing, observability and usage per session and admin audit logs (15). SOC 2 Type 2, ISO 27001 family, Bugcrowd bounty and a disclosure policy, per the openai-api listing (20). Not ZDR-eligible and US residency only, recorded under transparency. 27 + 17 + 8 + 15 + 20 = 87." }, "scores": { "a": 38, "b": 87 } }, { "by": 33, "category": "schema", "leads": "openai-agents-api", "name": "Schema \u0026 documentation", "reasons": { "a": "Harness reading. Docs site and a workspace server package (55).", "b": "The reference is linked from the overview and the SDKs carry beta.agents types; we didn't confirm /agents/sessions in OpenAI's public OpenAPI file, so 15 of 25. llms.txt with every Agents API page and Markdown twins (10). The overview, architecture page and the agents guide that compares the Agents API, Agents SDK and Responses API say when to use it (20). Typed configuration with enumerated container sizes, network modes and environment types (13 of 15). Examples in six languages and an errors page with codes per HTTP status, turn and session (15). Dated changelog entries and a versioned beta header (15). 15 + 10 + 20 + 13 + 15 + 15 = 88." }, "scores": { "a": 55, "b": 88 } }, { "by": 31, "category": "transparency", "leads": "openai-agents-api", "name": "Transparency \u0026 trust", "reasons": { "a": "Apache 2.0 (30). A telemetry page on the docs site (not read) (18 of 30). No deprecation policy (5). Disclosed with an opt-out (15 of 20). 30 + 18 + 5 + 15 = 68.", "b": "Closed service with clear terms, Apache-2.0 SDKs (15). Session state retained until deleted, deletable sessions and artifacts, not ZDR-eligible, US residency only, and the data-controls guide agrees; no retention period for artifacts after a sandbox expires (25 of 30). Dated deprecation notices with minimum periods for GA models; a beta API can change faster (15 of 20). Subprocessors and processing countries listed, per the openai-api listing (20). 15 + 25 + 15 + 20 = 75." }, "scores": { "a": 54, "b": 85 } }, { "by": 30, "category": "payments", "leads": "emdash", "name": "Payments \u0026 pricing", "reasons": { "a": "Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.", "b": "No machine payment protocol (0). Model, tool and container prices published without a login, and no fee for the API itself (20). The Free tier reading of the openai-api listing, half (10). Sign-up in a browser (0). 0 + 20 + 10 + 0 = 30." }, "scores": { "a": 60, "b": 30 } }, { "by": 25, "category": "ergonomics", "leads": "openai-agents-api", "name": "Agent ergonomics", "reasons": { "a": "Harness reading. Issue intake from Linear, GitHub, Jira and others, diff review, pull requests and CI checks in one place, local or over SSH (55).", "b": "Read as an API an agent drives. Context is compacted automatically, and session budgets and streamed events keep output sized (20 of 25). Sessions can be listed, continued and steered, events streamed or sent by webhook, artifacts fetched (15 of 20). Actionable error codes with recovery steps (20). No idempotency key; a documented check-then-retry procedure (10 of 20). One session call with defaults (medium sandbox, network enabled), SDKs in five languages (15). 20 + 15 + 20 + 10 + 15 = 80." }, "scores": { "a": 55, "b": 80 } }, { "by": 17, "category": "maintenance", "leads": "openai-agents-api", "name": "Maintenance \u0026 community", "reasons": { "a": "v1.2.11 on 6 November 2026 (30). v1.2.9, v1.2.10 and v1.2.11 within two weeks (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current installers and Homebrew cask (15). Release workflows, no test CI (5). 30 + 20 + 0 + 15 + 5 = 70.", "b": "Closed API. Last dated change 16 October 2026, Ultrafast mode and document skills (30). Four dated changelog entries in the 57 days since release, 10 September, 29 September, 9 October and 16 October (20). Changelog and help centre, as the openai-api listing reads them (12 of 15). Official SDKs carry beta.agents (15). SDK CI, per the openai-api listing (10). 30 + 20 + 12 + 15 + 10 = 87." }, "scores": { "a": 70, "b": 87 } } ], "facts": [ { "a": "Agent harness", "b": "HTTP API", "name": "Kind" }, { "a": "General Action, Inc.", "b": "OpenAI", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.openai.com/v1/agents/sessions", "name": "Hosted endpoint" }, { "a": "", "b": "https", "name": "Transports" }, { "a": "None", "b": "API key", "name": "Auth" }, { "a": "Free", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary hosted API under OpenAI's Services Agreement. The SDKs are Apache 2.0", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-11-06", "b": "2026-10-16", "name": "Last release" }, { "a": "no document linked", "b": "couldn't be read", "name": "Terms last updated" }, { "a": "no document linked", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "not read yet", "b": "couldn't be read", "name": "Customer content may train models" }, { "a": "not read yet", "b": "couldn't be read", "name": "Terms restrict automated access" }, { "a": "not read yet", "b": "couldn't be read", "name": "Terms restrict benchmarking" }, { "a": "not read yet", "b": "couldn't be read", "name": "Terms or service can change without notice" }, { "a": "not read yet", "b": "couldn't be read", "name": "Arbitration or class-action waiver" } ], "faq": [ { "answer": "OpenAI Agents API scores 73.3 (BB) on agent readiness against Emdash's 53.9 (D), and leads in 6 of 7 scored categories. Emdash leads on payments \u0026 pricing.", "question": "Which is better for AI agents, Emdash or OpenAI Agents API?" }, { "answer": "No hosted endpoint is listed for Emdash. OpenAI Agents API has a hosted endpoint at https://api.openai.com/v1/agents/sessions.", "question": "Can an agent call Emdash and OpenAI Agents API without installing anything?" }, { "answer": "Emdash is open source (Apache-2.0). No open-source release is listed for OpenAI Agents API.", "question": "Are Emdash and OpenAI Agents API open source?" } ], "goodFor": [ { "aheadOn": [ "Payments \u0026 pricing, 60 against 30" ], "also": [ "No key needed to call it", "Open source" ], "goodFor": "Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.", "slug": "emdash", "watchFor": "Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false" }, { "aheadOn": [ "Reliability, 60 against 55", "Schema \u0026 documentation, 88 against 55", "Agent ergonomics, 80 against 55", "Security \u0026 auth, 87 against 38", "Maintenance \u0026 community, 87 against 70", "Transparency \u0026 trust, 85 against 54" ], "also": [ "Agent-ready, a grade of BB or better", "A hosted endpoint, with nothing to install" ], "goodFor": "Teams that want OpenAI to run the agent loop, with sandboxes, MCP tools and subagents, and are fine with a beta API, US-only data residency and no Zero Data Retention.", "slug": "openai-agents-api", "watchFor": "Public beta since 10 September 2026 behind the agents=v1 beta header, with no GA date" } ], "history": null, "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-emdash.json", "title": "Agent Zero vs Emdash", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-openai-agents-api.json", "title": "Agent Zero vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-emdash.json", "title": "Aider vs Emdash", "url": "https://www.anchorterminal.com/compare/aider-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-openai-agents-api.json", "title": "Aider vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/aider-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-emdash.json", "title": "Amp vs Emdash", "url": "https://www.anchorterminal.com/compare/amp-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-openai-agents-api.json", "title": "Amp vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/amp-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-emdash.json", "title": "Antigravity CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-agents-api.json", "title": "Antigravity CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-emdash.json", "title": "Auggie CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/auggie-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-openai-agents-api.json", "title": "Auggie CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/auggie-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/axlr-vs-emdash.json", "title": "AXLR vs Emdash", "url": "https://www.anchorterminal.com/compare/axlr-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/axlr-vs-openai-agents-api.json", "title": "AXLR vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/axlr-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-emdash.json", "title": "Claude Code vs Emdash", "url": "https://www.anchorterminal.com/compare/claude-code-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-openai-agents-api.json", "title": "Claude Code vs OpenAI Agents API", "url": 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OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-emdash.json", "title": "dsh-superagent (DeepSeek) vs Emdash", "url": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-openai-agents-api.json", "title": "dsh-superagent (DeepSeek) vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-emdash.json", "title": "Devin vs Emdash", "url": "https://www.anchorterminal.com/compare/devin-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-openai-agents-api.json", "title": "Devin vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/devin-vs-openai-agents-api" }, { "json": 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CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-junie" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-kilo-code-cli.json", "title": "Emdash vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-kimi-code-cli.json", "title": "Emdash vs Kimi Code CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-kimi-code-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-kiro-cli.json", "title": "Emdash vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-letta.json", "title": "Emdash vs Letta", "url": "https://www.anchorterminal.com/compare/emdash-vs-letta" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-mini-swe-agent.json", "title": "Emdash vs mini-swe-agent", "url": "https://www.anchorterminal.com/compare/emdash-vs-mini-swe-agent" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-minimax-code.json", "title": "Emdash vs MiniMax Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-minimax-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-mistral-vibe-cli.json", "title": "Emdash vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-muse-code.json", "title": "Emdash vs Muse Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openai-codex.json", "title": "Emdash vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/emdash-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-opencode.json", "title": "Emdash vs OpenCode", "url": "https://www.anchorterminal.com/compare/emdash-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openhands.json", "title": "Emdash vs OpenHands", "url": "https://www.anchorterminal.com/compare/emdash-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openmausbot.json", "title": "Emdash vs OpenMausBot", "url": "https://www.anchorterminal.com/compare/emdash-vs-openmausbot" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-orca.json", "title": "Emdash vs Orca", "url": "https://www.anchorterminal.com/compare/emdash-vs-orca" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-paseo.json", "title": "Emdash vs Paseo", "url": "https://www.anchorterminal.com/compare/emdash-vs-paseo" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-prime-agent.json", "title": "Emdash vs Prime Agent", "url": "https://www.anchorterminal.com/compare/emdash-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-qoder-cli.json", "title": "Emdash vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-qwen-code.json", "title": "Emdash vs Qwen Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-reflection-mirror.json", "title": "Emdash vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-rovo-dev-cli.json", "title": "Emdash vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-sculptor.json", "title": "Emdash vs Sculptor", "url": "https://www.anchorterminal.com/compare/emdash-vs-sculptor" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-t3-code.json", "title": "Emdash vs T3 Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-traycer.json", "title": "Emdash vs Traycer", "url": "https://www.anchorterminal.com/compare/emdash-vs-traycer" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-unstoppable.json", "title": "Emdash vs Unstoppable", "url": "https://www.anchorterminal.com/compare/emdash-vs-unstoppable" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-verdent.json", "title": "Emdash vs Verdent", "url": "https://www.anchorterminal.com/compare/emdash-vs-verdent" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-vibe-trading.json", "title": "Emdash vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/emdash-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-warp.json", "title": "Emdash vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/emdash-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-openai-agents-api.json", "title": "Gemini CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-agents-api.json", "title": "GitHub Copilot CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-openai-agents-api.json", "title": "goose vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/goose-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/harness2-vs-openai-agents-api.json", "title": "Harness² vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/harness2-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-agents-api.json", "title": "HarnessRouter vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/jules-vs-openai-agents-api.json", "title": "Jules vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/jules-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/junie-vs-openai-agents-api.json", "title": "Junie CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/junie-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-openai-agents-api.json", "title": "Kilo Code CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/kimi-code-cli-vs-openai-agents-api.json", "title": "Kimi Code CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/kimi-code-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/kiro-cli-vs-openai-agents-api.json", "title": "Kiro CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/kiro-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/letta-vs-openai-agents-api.json", "title": "Letta vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/letta-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/mini-swe-agent-vs-openai-agents-api.json", "title": "mini-swe-agent vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/mini-swe-agent-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/minimax-code-vs-openai-agents-api.json", "title": "MiniMax Code vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/minimax-code-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-openai-agents-api.json", "title": "Mistral Vibe CLI vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openai-agents-api.json", "title": "Muse Code vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openai-codex.json", "title": "OpenAI Agents API vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-opencode.json", "title": "OpenAI Agents API vs OpenCode", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openhands.json", "title": "OpenAI Agents API vs OpenHands", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openmausbot.json", "title": "OpenAI Agents API vs OpenMausBot", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-openmausbot" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-orca.json", "title": "OpenAI Agents API vs Orca", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-orca" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-paseo.json", "title": "OpenAI Agents API vs Paseo", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-paseo" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-prime-agent.json", "title": "OpenAI Agents API vs Prime Agent", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-qoder-cli.json", "title": "OpenAI Agents API vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-qwen-code.json", "title": "OpenAI Agents API vs Qwen Code", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-reflection-mirror.json", "title": "OpenAI Agents API vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-rovo-dev-cli.json", "title": "OpenAI Agents API vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-sculptor.json", "title": "OpenAI Agents API vs Sculptor", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-sculptor" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-t3-code.json", "title": "OpenAI Agents API vs T3 Code", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-traycer.json", "title": "OpenAI Agents API vs Traycer", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-traycer" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-unstoppable.json", "title": "OpenAI Agents API vs Unstoppable", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-unstoppable" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-verdent.json", "title": "OpenAI Agents API vs Verdent", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-verdent" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-vibe-trading.json", "title": "OpenAI Agents API vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/openai-agents-api-vs-warp.json", "title": "OpenAI Agents API vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/openai-agents-api-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-emdash.json", "title": "Clawboo vs Emdash", "url": "https://www.anchorterminal.com/compare/clawboo-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-emdash.json", "title": "CLI Manager vs Emdash", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-harness-autonomous.json", "title": "Emdash vs Harness", "url": "https://www.anchorterminal.com/compare/emdash-vs-harness-autonomous" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-paperclip.json", "title": "Emdash vs Paperclip", "url": "https://www.anchorterminal.com/compare/emdash-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-parallax-agents.json", "title": "Emdash vs Parallax", "url": "https://www.anchorterminal.com/compare/emdash-vs-parallax-agents" } ], "panel": null, "scores": [ { "by": 5, "edge": "openai-agents-api", "emdash": 55, "key": "reliability", "name": "Reliability", "openai-agents-api": 60, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 33, "edge": "openai-agents-api", "emdash": 55, "key": "schema", "name": "Schema \u0026 documentation", "openai-agents-api": 88, "weight": 13 }, { "by": 25, "edge": "openai-agents-api", "emdash": 55, "key": "ergonomics", "name": "Agent ergonomics", "openai-agents-api": 80, "weight": 13 }, { "by": 49, "edge": "openai-agents-api", "emdash": 38, "key": "security", "name": "Security \u0026 auth", "openai-agents-api": 87, "weight": 14 }, { "by": 30, "edge": "emdash", "emdash": 60, "key": "payments", "name": "Payments \u0026 pricing", "openai-agents-api": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 17, "edge": "openai-agents-api", "emdash": 70, "key": "maintenance", "name": "Maintenance \u0026 community", "openai-agents-api": 87, "weight": 7 }, { "by": 31, "edge": "openai-agents-api", "emdash": 54, "key": "transparency", "name": "Transparency \u0026 trust", "openai-agents-api": 85, "weight": 7 } ], "summary": "OpenAI Agents API scores 73.3 (BB) on agent readiness against Emdash's 53.9 (D), and leads in 6 of 7 scored categories. Emdash leads on payments \u0026 pricing. Both do agent harnesses.", "tasks": null, "tutorials": [], "verdicts": { "emdash": "A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.", "openai-agents-api": "OpenAI's hosted agent runtime, the Codex harness behind one session call, with MCP, functions, web search, computer use, subagents and sandboxes on OpenAI or your own infrastructure. Documentation, errors and SDKs are thorough. It's still public beta, can't use Zero Data Retention and keeps data in the United States only." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api", "json": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.min.md" }, "markdown": "OpenAI Agents API scores 73.3 (BB) on agent readiness against Emdash's 53.9 (D), and leads in 6 of 7 scored categories. Emdash leads on payments \u0026 pricing. Both do agent harnesses.\n\n- Emdash: grade D, 53.9/100, rank #933 of 1510. Markdown https://www.anchorterminal.com/tools/emdash.md · JSON https://www.anchorterminal.com/api/v1/tools/emdash.json\n- OpenAI Agents API: grade BB, 73.3/100, rank #111 of 1510. Markdown https://www.anchorterminal.com/tools/openai-agents-api.md · JSON https://www.anchorterminal.com/api/v1/tools/openai-agents-api.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 1500 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### Emdash (D)\n\nGood for: Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.\n\nAhead on:\n- Payments \u0026 pricing, 60 against 30\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n\nWatch for: Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false\n\n### OpenAI Agents API (BB)\n\nGood for: Teams that want OpenAI to run the agent loop, with sandboxes, MCP tools and subagents, and are fine with a beta API, US-only data residency and no Zero Data Retention.\n\nAhead on:\n- Reliability, 60 against 55\n- Schema \u0026 documentation, 88 against 55\n- Agent ergonomics, 80 against 55\n- Security \u0026 auth, 87 against 38\n- Maintenance \u0026 community, 87 against 70\n- Transparency \u0026 trust, 85 against 54\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- A hosted endpoint, with nothing to install\n\nWatch for: Public beta since 10 September 2026 behind the agents=v1 beta header, with no GA date\n\n\n## Why the edge\n\n### Security \u0026 auth: OpenAI Agents API +49\n\n- Emdash (38): Harness reading. Telemetry is described as optional and disabled in Settings or with TELEMETRY_ENABLED=false, which reads as on by default (15 of 30). Worktree per task and remote machines over SSH (10 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 15 + 10 + 5 + 5 + 3 = 38.\n- OpenAI Agents API (87): Project keys with restricted per-endpoint permissions, service accounts and workload identity, per the openai-api listing; we didn't confirm a key can be limited to /v1/agents (27 of 30). Automatic review for approvals, a sandbox network restricted to a host allowlist, vaults for secrets and a sandbox security guide (17 of 20). The agent reads web pages, MCP results and browser content; the sandbox security guide and approval flow are the mitigations, with no prompt-injection guide of its own found (8 of 15). Tracing, observability and usage per session and admin audit logs (15). SOC 2 Type 2, ISO 27001 family, Bugcrowd bounty and a disclosure policy, per the openai-api listing (20). Not ZDR-eligible and US residency only, recorded under transparency. 27 + 17 + 8 + 15 + 20 = 87.\n\n### Schema \u0026 documentation: OpenAI Agents API +33\n\n- Emdash (55): Harness reading. Docs site and a workspace server package (55).\n- OpenAI Agents API (88): The reference is linked from the overview and the SDKs carry beta.agents types; we didn't confirm /agents/sessions in OpenAI's public OpenAPI file, so 15 of 25. llms.txt with every Agents API page and Markdown twins (10). The overview, architecture page and the agents guide that compares the Agents API, Agents SDK and Responses API say when to use it (20). Typed configuration with enumerated container sizes, network modes and environment types (13 of 15). Examples in six languages and an errors page with codes per HTTP status, turn and session (15). Dated changelog entries and a versioned beta header (15). 15 + 10 + 20 + 13 + 15 + 15 = 88.\n\n### Transparency \u0026 trust: OpenAI Agents API +31\n\n- Emdash (54): Apache 2.0 (30). A telemetry page on the docs site (not read) (18 of 30). No deprecation policy (5). Disclosed with an opt-out (15 of 20). 30 + 18 + 5 + 15 = 68.\n- OpenAI Agents API (85): Closed service with clear terms, Apache-2.0 SDKs (15). Session state retained until deleted, deletable sessions and artifacts, not ZDR-eligible, US residency only, and the data-controls guide agrees; no retention period for artifacts after a sandbox expires (25 of 30). Dated deprecation notices with minimum periods for GA models; a beta API can change faster (15 of 20). Subprocessors and processing countries listed, per the openai-api listing (20). 15 + 25 + 15 + 20 = 75.\n\n### Payments \u0026 pricing: Emdash +30\n\n- Emdash (60): Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.\n- OpenAI Agents API (30): No machine payment protocol (0). Model, tool and container prices published without a login, and no fee for the API itself (20). The Free tier reading of the openai-api listing, half (10). Sign-up in a browser (0). 0 + 20 + 10 + 0 = 30.\n\n### Agent ergonomics: OpenAI Agents API +25\n\n- Emdash (55): Harness reading. Issue intake from Linear, GitHub, Jira and others, diff review, pull requests and CI checks in one place, local or over SSH (55).\n- OpenAI Agents API (80): Read as an API an agent drives. Context is compacted automatically, and session budgets and streamed events keep output sized (20 of 25). Sessions can be listed, continued and steered, events streamed or sent by webhook, artifacts fetched (15 of 20). Actionable error codes with recovery steps (20). No idempotency key; a documented check-then-retry procedure (10 of 20). One session call with defaults (medium sandbox, network enabled), SDKs in five languages (15). 20 + 15 + 20 + 10 + 15 = 80.\n\n### Maintenance \u0026 community: OpenAI Agents API +17\n\n- Emdash (70): v1.2.11 on 6 November 2026 (30). v1.2.9, v1.2.10 and v1.2.11 within two weeks (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current installers and Homebrew cask (15). Release workflows, no test CI (5). 30 + 20 + 0 + 15 + 5 = 70.\n- OpenAI Agents API (87): Closed API. Last dated change 16 October 2026, Ultrafast mode and document skills (30). Four dated changelog entries in the 57 days since release, 10 September, 29 September, 9 October and 16 October (20). Changelog and help centre, as the openai-api listing reads them (12 of 15). Official SDKs carry beta.agents (15). SDK CI, per the openai-api listing (10). 30 + 20 + 12 + 15 + 10 = 87.\n\n## Score by category\n\n| Category | Weight | Emdash | OpenAI Agents API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 60 | OpenAI Agents API +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 55 | 88 | OpenAI Agents API +33 |\n| Agent ergonomics | 13% (16.2 this run) | 55 | 80 | OpenAI Agents API +25 |\n| Security \u0026 auth | 14% (17.5 this run) | 38 | 87 | OpenAI Agents API +49 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 30 | Emdash +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 87 | OpenAI Agents API +17 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 54 | 85 | OpenAI Agents API +31 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **53.9 · D** | **73.3 · BB** | |\n\n## Facts side by side\n\n| Fact | Emdash | OpenAI Agents API |\n| --- | --- | --- |\n| Kind | Agent harness | HTTP API |\n| Vendor | General Action, Inc. | OpenAI |\n| Hosted endpoint | no (local only) | `https://api.openai.com/v1/agents/sessions` |\n| Transports | | https |\n| Auth | None | API key |\n| Pricing | Free | Pay per use |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary hosted API under OpenAI's Services Agreement. The SDKs are Apache 2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-11-06 | 2026-10-16 |\n| Terms last updated | no document linked | couldn't be read |\n| Privacy policy last updated | no document linked | couldn't be read |\n| Customer content may train models | not read yet | couldn't be read |\n| Terms restrict automated access | not read yet | couldn't be read |\n| Terms restrict benchmarking | not read yet | couldn't be read |\n| Terms or service can change without notice | not read yet | couldn't be read |\n| Arbitration or class-action waiver | not read yet | couldn't be read |\n\n## Verdicts\n\n**Emdash.** A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.\n\n**OpenAI Agents API.** OpenAI's hosted agent runtime, the Codex harness behind one session call, with MCP, functions, web search, computer use, subagents and sandboxes on OpenAI or your own infrastructure. Documentation, errors and SDKs are thorough. It's still public beta, can't use Zero Data Retention and keeps data in the United States only.\n\n## Before you call either\n\n### Emdash\n\n1. Launch with TELEMETRY_ENABLED=false if you don't want telemetry\n2. Use the SSH mode to keep agents on a remote machine\n\n### OpenAI Agents API\n\n1. POST https://api.openai.com/v1/agents/sessions with a project key and the header OpenAI-Beta: agents=v1, or use client.beta.agents in the SDKs\n2. Before retrying, retrieve the session and turn and check which actions completed, since there's no idempotency key\n3. Set the sandbox network to restricted with an allowlist of up to 100 hosts when the agent doesn't need the open web\n4. Save files from /workspace/outputs before deleting a session; no retention period is stated for artifacts\n5. Don't send data that needs Zero Data Retention or non-US residency; the Agents API supports neither\n\n## Questions\n\n### Which is better for AI agents, Emdash or OpenAI Agents API?\n\nOpenAI Agents API scores 73.3 (BB) on agent readiness against Emdash's 53.9 (D), and leads in 6 of 7 scored categories. Emdash leads on payments \u0026 pricing.\n\n### Can an agent call Emdash and OpenAI Agents API without installing anything?\n\nNo hosted endpoint is listed for Emdash. OpenAI Agents API has a hosted endpoint at https://api.openai.com/v1/agents/sessions.\n\n### Are Emdash and OpenAI Agents API open source?\n\nEmdash is open source (Apache-2.0). No open-source release is listed for OpenAI Agents API.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.json, and with the fewest tokens: https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"emdash\", \"b\": \"openai-agents-api\"}`. 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